StemCell Therapy

Source:
http://feeds.feedburner.com/integratedmedicine

April 21, 2012

Researchers have discovered a new stem cell in the adult brain a discovery which could lead to new treatments for strokes and neurodegenerative conditions.

The discovery was made by researchers at Lund University in Sweden, who found the stem cells located around small blood vessels in the brain while analyzing brain tissues obtained from biopsies.

These cells can proliferate and form several different cell types, including new brain cells, and while their exact function is unclear at this point, experts hope they can lead to the discovery of new methods in order to heal and repair diseases and injuries of the brain.

A similar cell type has been identified in several other organs where it can promote regeneration of muscle, bone, cartilage and adipose tissue, Dr, Patrik Brundin, senior author of the study, Head of the Neuronal Survival Unit at Lund University, and Jay Van Andel Endowed Chair in Parkinsons Research at Van Andel Institute (VAI), said in a press release on Thursday.

According to Sue Thoms of MLive.com, stem cells have been proven capable of healing and repairing injuries in other organs, and if Brundin and his colleagues hope to achieve similar results with the stem cells found in the brain, they will first have to try to control and enhance the cells self-healing properties. The goal, they say, will be to carry out therapies targeted to a specific location within the brain itself.

Our findings show that the cell capacity is much larger than we originally thought, and that these cells are very versatile, said Dr. Gesine Paul-Visse, primary author of the study, which has been published in the journal PLoS ONE, and an associate professor of neuroscience at Lund University.

Most interesting is their ability to form neuronal cells, but they can also be developed for other cell types. The results contribute to better understanding of how brain cell plasticity works and opens up new opportunities to exploit these very features, Paul-Visse added. We hope that our findings may lead to a new and better understanding of the brains own repair mechanisms. Ultimately the goal is to strengthen these mechanisms and develop new treatments that can repair the diseased brain.

Source: RedOrbit Staff & Wire Reports

More here:
New Stem Cell Discovered In The Brain

When pitching in the Dominican Republic, C.J. Nitkowski said he felt he was back to his normal self on the mound

STORY HIGHLIGHTS

For the full story on C.J. Nitkowski's risky medical procedure and baseball comeback, watch CNN Presents, Sunday night at 8ET.

Alpharetta, Georgia (CNN) -- At 39 years old, Christopher John Nitkowski really has no business trying to pitch in the major leagues. In the harsh reality of professional sports, he's a has-been.

Just don't tell him that.

The former first-round draft pick last pitched for the Washington Nationals in 2005 after a 10-season career spent mostly as a left-handed reliever.

"You go as long as you can," he told CNN. "I had a good friend tell me, 'Man, just make them tear the uniform off of you. You can do whatever you're gonna do for the rest of your life. You can't play baseball forever.'"

A doctor injects C.J. Nitkowski's stem cells into his injured shoulder

In the middle of the 2011 baseball season Nitkowski announced in a first-person article for Sports Illustrated that he would try a comeback. After his brief major league appearance in 2005, he pitched subsequent years for one team in Japan and three in South Korea.

This time, he wrote, he would agree to a risky medical experiment that would involve injecting his own stem cells into his injured pitching shoulder, which he hurt in an initial comeback attempt last spring.

Go here to see the original:
Pitcher hopes stem cell procedure will get him one last season

MEDIA RELEASE

IBN Discovers Human Neural Stem Cells with Tumor Targeting Ability A Promising Discovery for Breast Cancer Therapy

Singapore, April 20, 2012 Could engineered human stem cells hold the key to cancer survival? Scientists at the Institute of Bioengineering and Nanotechnology (IBN), the worlds first bioengineering and nanotechnology research institute, have discovered that neural stem cells possess the innate ability to target tumor cells outside the central nervous system. This finding, which was demonstrated successfully on breast cancer cells, was recently published in leading peer reviewed journal, Stem Cells.

A team of researchers led by IBN Group Leader, Dr Shu Wang, has made a landmark discovery that neural stem cells (NSCs) derived from human induced pluripotent stem (iPS) cells could be used to treat breast cancer. The effectiveness of using NSCs, which originate from the central nervous system, to treat brain tumors has been investigated in previous studies. This is the first study that demonstrates that iPS cell-derived NSCs could also target tumors outside the central nervous system, to treat both primary and secondary tumors.

To test the efficiency of NSCs in targeting and treating breast cancer, the researchers injected NSCs loaded with a suicide gene (herpes simplex virus thymidine) into mice bearing breast tumors. They did this using baculoviral vectors or gene carriers engineered from an insect virus (baculovirus), which does not replicate in human cells, making the carriers less harmful for clinical use. A prodrug (ganciclovir), which would activate the suicide gene to kill the cancerous cells upon contact, was subsequently injected into the mice. A dual-colored whole body imaging technology was then used to track the distribution and migration of the iPS-NSCs.

The imaging results revealed that the iPS-NSCs homed in on the breast tumors in the mice, and also accumulated in various organs infiltrated by the cancer cells such as the lung, stomach and bone. The survival of the tumor-bearing mice was prolonged from 34 days to 39 days. This data supports and explains how engineered iPS-NSCs are able to effectively seek out and inhibit tumor growth and proliferation.

Dr Shu Wang shared, We have demonstrated that tumor-targeting neural stem cells may be derived from human iPS cells, and that these cells may be used in combination with a therapeutic gene to cripple tumor growth. This is a significant finding for stem cell-based cancer therapy, and we will continue to improve and optimize our neural stem cell system by preventing any unwanted activation of the therapeutic gene in non-tumor regions and minimizing possible side effects.

IBNs expertise in generating human stem cells from iPS cells and our novel use of insect virus carriers for gene delivery have paved the way for the development of innovative stem cell-based therapies. With their two-pronged attack on tumors using genetically engineered neural stem cells, our researchers have discovered a promising alternative to conventional cancer treatment, added Professor Jackie. Y. Ying, IBN Executive Director.

Compared to collecting and expanding primary cells from individual patients, IBNs approach of using iPS cells to derive NSCs is less laborious and suitable for large-scale manufacture of uniform batches of cellular products for repeated patient treatments. Importantly, this approach will help eliminate variability in the quality of the cellular products, thus facilitating reliable comparative analysis of clinical outcomes.

Additionally, these iPS cell-derived NSCs are derived from adult cells, which bypass the sensitive ethical issue surrounding the use of human embryos, and since iPS cells are developed from a patients own cells, the likelihood of immune rejection would be reduced.

Visit link:
:: 20, Apr 2012 :: IBN DISCOVERS HUMAN NEURAL STEM CELLS WITH TUMOR TARGETING ABILITY – A PROMISING DISCOVERY FOR ...

London, Apr 19 : Researchers including one of Indian origin have declared a research breakthrough in mice that shows promise to restore hearts damaged by heart attacks-by converting scar-forming cardiac cells into beating heart muscle.

Gladstone Institutes scientists previously transformed such cells into cardiac muscle-like cells in petri dishes.

But Gladstone postdoctoral scholar Li Qian, PhD, along with researchers in the laboratory of Deepak Srivastava, MD, has now accomplished this transformation in living animals-and with even greater success.

The results may have broad human-health implications.

"The damage from a heart attack is typically permanent because heart-muscle cells-deprived of oxygen during the attack-die and scar tissue forms," said Dr. Srivastava, who directs cardiovascular and stem cell research at Gladstone, an independent and nonprofit biomedical-research institution.

"But our experiments in mice are a proof of concept that we can reprogram non-beating cells directly into fully functional, beating heart cells-offering an innovative and less invasive way to restore heart function after a heart attack."

In laboratory experiments with mice that had experienced a heart attack, Drs. Qian and Srivastava delivered three genes that normally guide embryonic heart development-together known as GMT-directly into the damaged region.

Within a month, non-beating cells that normally form scar tissue transformed into beating heart-muscle cells. Within three months, the hearts were beating even stronger and pumping more blood.

"These findings could have a significant impact on heart-failure patients-whose damaged hearts make it difficult for them to engage in normal activities like walking up a flight of stairs," said Dr. Qian, who is also a California Institute for Regenerative Medicine postdoctoral scholar and a Roddenberry Fellow.

"This research may result in a much-needed alternative to heart transplants-for which donors are extremely limited. And because we are reprogramming cells directly in the heart, we eliminate the need to surgically implant cells that were created in a petri dish."

See more here:
Transforming scar tissue into beating heart muscle may help repair cardiac damage

MARLBOROUGH, Mass.--(BUSINESS WIRE)--

Advanced Cell Technology, Inc. (ACT; OTCBB: ACTC), a leader in the field of regenerative medicine, announced today the dosing of the third patient in its Phase I/II trial for dry age-related macular degeneration (dry AMD) using retinal pigment epithelial (RPE) cells derived from human embryonic stem cells (hESCs). The outpatient transplantation surgery was performed successfully, and the patient is recovering uneventfully.

Gary Rabin, chairman and CEO of ACT, commented, The completion of enrollment of the first cohort of patients in our dry AMD clinical trial is a significant step forward in our RPE clinical program. The first six patients in the U.S. trials have all been treated at UCLA, and as we have recently announced, the trials should soon expand to additional sites. As we have built our clinical team, we have been fortunate to have attracted the attention of some of the highest-caliber ophthalmologists and related institutions in the U.S. and Europe and recognize the huge value that their expertise provides us as we plan for the future of our therapeutic programs. With their guidance, we have also worked with the FDA to successfully expand the criteria of eligibility for patients to participate in our dry AMD trial.

The procedures at UCLA were all conducted by the team led by Steven Schwartz, M.D., Ahmanson Professor of Ophthalmology at the David Geffen School of Medicine at UCLA and retina division chief at UCLA's Jules Stein Eye Institute.

The six patients treated at UCLA to date have tolerated the surgical procedure well. commented Dr. Schwartz. There have been no complications in the procedure, nor any issues relating to the safety of the injected stem cell-derived RPE cells in any of the patients. We continue to regularly evaluate all patients in the trial, and while still preliminary, I am encouraged by the patients progress and the relative straightforwardness of the surgical procedure.

We are extremely pleased with the progress being made in all three of our clinical trials here in the U.S. and the U.K., commented Robert Lanza, M.D., ACTs chief scientific officer. The data we are reviewing seems to be pointing in the appropriate direction, With the treatment of the latest two dry AMD patients, we look forward to having more significant points of reference to understand the progress of the trial and consider the endpoint design for the next phase. Both Stargardts disease and dry AMD are progressive diseases that result vision loss and blindness due to the thinning of the layer of RPE cells in the patient's macula, the central portion of the retina responsible for central vision. We still have many patients left to treat during the course of these trials, but our team remains hopeful that stem cell-derived RPE cells may someday provide a new therapeutic approach for the treatment of many forms of macular degeneration. We hear from patients who suffer from these diseases on nearly a daily basis, and appreciate the huge responsibility we have to them.

ACT is conducting three clinical trials in the U.S. and Europe using hESC-derived RPE cells to treat forms of macular degeneration. Each trial will enroll a total of 12 patients, with cohorts of three patients each in an ascending dosage format. These trials are prospective, open-label studies, designed to determine the safety and tolerability of hESC-derived RPE cells following sub-retinal transplantation into patients with dry-AMD or Stargardt's macular dystrophy (SMD) at 12 months, the studys primary endpoint. Preliminary results relating to both early safety and biological function for the first two patients in the United States, one SMD patient and one dry AMD patient, were recently reported in The Lancet. On January 20, 2012, the first SMD patient to be enrolled in the Companys U.K. clinical trial was treated at Moorfields Eye Hospital in London. The final patient of the first cohort in the companys SMD trial in the U.S. was treated on February 13, 2012.

Further information about patient eligibility for the dry AMD study and the concurrent study on SMD is also available on http://www.clinicaltrials.gov; ClinicalTrials.gov Identifiers: NCT01345006 , NCT01469832 and NCT01344993.

About Advanced Cell Technology, Inc.

Advanced Cell Technology, Inc., is a biotechnology company applying cellular technology in the field of regenerative medicine. For more information, visit http://www.advancedcell.com.

Here is the original post:
ACT Announces Third Dry AMD Patient Treated in Clinical Trial

St. Louis /PRNewswire/ -- Sigma-Aldrich Corporation (Nasdaq: SIAL) today announced that Sigma Advanced Genetic Engineering (SAGE) Labs, an initiative of Sigma Life Science, extended CompoZr Zinc Finger Nuclease (ZFN) technology to achieve the first tissue-specific conditional knockout of an endogenous gene in rats. For two decades this approach for generating sophisticated disease models could be performed only in mice. Rats, however, are preferred by drug discovery and basic researchers because the animal's physiology, neurobiology and other features are more predictive of human conditions. Rats engineered to contain tissue-specific conditional gene knockouts are available exclusively through the SAGEspeed Custom Model Development Service. Details are available at http://www.sageresearchmodels.com/conditional-KO.

Conventional gene knockout eliminates a gene throughout an entire animal. In contrast, conditional gene knockout can eliminate a gene solely in the relevant tissue or organ, leading to a more accurate understanding of the gene's function. Conditional gene knockout can also knock out genes at certain points in development, enabling studies of genes whose absence in embryos is lethal, but whose loss of function in adulthood is critical to investigate for many human diseases.

"Almost 89% of drug candidates fail to achieve approval," said Edward Weinstein, Director of SAGE Labs. "Basic and drug discovery researchers need access to more predictive animal models whose physiology, biology, and genetics more closely reflect specific human conditions. SAGE Labs is applying ZFN technology to achieve previously impossible genetic manipulations, such as tissue-specific gene deletion in rats."

Using the conditional knockout methodology, scientists at SAGE Labs have generated a pair of rat lines in which two important neuronal genes, Crhr1 and Grin1, were removed in specific neuronal populations. Crhr1 and Grin1 have been implicated as playing a role in depression and schizophrenia, respectively. The rat lines were developed through the SAGEspeed model creation process, which uses Sigma's CompoZr ZFN technology to create sophisticated genetic modifications in rats, mice, rabbits, and other organisms. CompoZr ZFN technology is the first to enable highly efficient, targeted editing of the genome of any species.

For more information and to request pricing, visit http://www.sageresearchmodels.com.

Cautionary Statement: The foregoing release contains forward-looking statements that can be identified by terminology such as "enable," "enabling," "leading to," "achieve," "predictive" or similar expressions, or by expressed or implied discussions regarding potential future revenues from products derived there from. You should not place undue reliance on these statements. Such forward-looking statements reflect the current views of management regarding future events, and involve known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from any future results, performance or achievements expressed or implied by such statements. There can be no guarantee that iPS cells, iPS-cell derived primary cell lines, novel assays, or related custom services will assist the Company to achieve any particular levels of revenue in the future. In particular, management's expectations regarding products associated iPS cells, iPS-cell derived primary cell lines, novel assays, or related custom services could be affected by, among other things, unexpected regulatory actions or delays or government regulation generally; the Company's ability to obtain or maintain patent or other proprietary intellectual property protection; competition in general; government, industry and general public pricing pressures; the impact that the foregoing factors could have on the values attributed to the Company's assets and liabilities as recorded in its consolidated balance sheet, and other risks and factors referred to in Sigma-Aldrich's current Form 10-K on file with the US Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, believed, estimated or expected. Sigma-Aldrich is providing the information in this press release as of this date and does not undertake any obligation to update any forward-looking statements contained in this press release as a result of new information, future events or otherwise.

About Sigma Life Science: Sigma Life Science is a Sigma-Aldrich business that represents the Company's leadership in innovative biological products and services for the global life science market and offers an array of biologically-rich products and reagents that researchers use in scientific investigation. Product areas include biomolecules, genomics and functional genomics, cells and cell-based assays, transgenics, protein assays, stem cell research, epigenetics and custom services/oligonucleotides. Sigma Life Science also provides an extensive range critical bioessentials like biochemicals, antibiotics, buffers, carbohydrates, enzymes, forensic tools, hematology and histology, nucleotides, amino acids and their derivatives, and cell culture media.

About Sigma-Aldrich: Sigma-Aldrich is a leading Life Science and High Technology company whose biochemical, organic chemical products, kits and services are used in scientific research, including genomic and proteomic research, biotechnology, pharmaceutical development, the diagnosis of disease and as key components in pharmaceutical, diagnostics and high technology manufacturing. Sigma-Aldrich customers include more than 1.3 million scientists and technologists in life science companies, university and government institutions, hospitals and industry. The Company operates in 40 countries and has nearly 9,000 employees whose objective is to provide excellent service worldwide. Sigma-Aldrich is committed to accelerating customer success through innovation and leadership in Life Science and High Technology. For more information about Sigma-Aldrich, please visit its website at http://www.sigma-aldrich.com.

Sigma-Aldrich and Sigma are trademarks of Sigma-Aldrich Co, LLC registered in the US and other countries. SAGE and CompoZr are registered trademarks of Sigma-Aldrich Co. LLC. SAGEspeed is a trademark of Sigma-Aldrich Co. LLC.

SOURCE: Sigma-Aldrich Corporation

Excerpt from:
SAGE® Labs Creates The First Tissue-Specific Gene Deletion In Rats

April 20, 2012 18:19 PM

IBN Discovers Human Neural Stem Cells, Promising Discovery For Breast Cancer Therapy

By Tengku Noor Shamsiah Tengku Abdullah

SINGAPORE, April 20 (Bernama) -- Could engineered human stem cells hold the key to cancer survival?

Scientists at the Institute of Bioengineering and Nanotechnology (IBN), the world's first bioengineering and nanotechnology research institute, have discovered that neural stem cells possess the innate ability to target tumor cells outside the central nervous system.

This finding, which was demonstrated successfully on breast cancer cells, was recently published in leading peer reviewed journal, Stem Cells.

Despite decades of cancer research, cancer remains a leading cause of death worldwide, accounting for 7.6 million deaths in 2008, and breast cancer is one of the most common causes of cancer deaths each year.

In Singapore, more than 1,400 women are diagnosed with breast cancer and more than 300 die as a result of breast cancer annually.

A team of researchers led by IBN group leader Dr Shu Wang, has made a landmark discovery that neural stem cells (NSCs) derived from human induced pluripotent stem (iPS) cells could be used to treat breast cancer.

The effectiveness of using NSCs, which originate from the central nervous system, to treat brain tumors has been investigated in previous studies.

View original post here:
IBN Discovers Human Neural Stem Cells, Promising Discovery For Breast Cancer Therapy

Despite decades of cancer research, cancer remains a leading cause of death worldwide, accounting for 7.6 million deaths in 2008, and breast cancer is one of the most common causes of cancer deaths each year . In Singapore, more than 1,400 women are diagnosed with breast cancer and more than 300 die as a result of breast cancer each year . The high fatality rate of cancer is partially attributed to the invasive ability of malignant tumors to spread throughout the human body, and the ineffectiveness of conventional therapies to eradicate the cancer cells.

A team of researchers led by IBN Group Leader, Dr Shu Wang, has made a landmark discovery that neural stem cells (NSCs) derived from human induced pluripotent stem (iPS) cells could be used to treat breast cancer. The effectiveness of using NSCs, which originate from the central nervous system, to treat brain tumors has been investigated in previous studies. This is the first study that demonstrates that iPS cell-derived NSCs could also target tumors outside the central nervous system, to treat both primary and secondary tumors.

To test the efficiency of NSCs in targeting and treating breast cancer, the researchers injected NSCs loaded with a suicide gene (herpes simplex virus thymidine) into mice bearing breast tumors. They did this using baculoviral vectors or gene carriers engineered from an insect virus (baculovirus), which does not replicate in human cells, making the carriers less harmful for clinical use. A prodrug (ganciclovir), which would activate the suicide gene to kill the cancerous cells upon contact, was subsequently injected into the mice. A dual-colored whole body imaging technology was then used to track the distribution and migration of the iPS-NSCs.

The imaging results revealed that the iPS-NSCs homed in on the breast tumors in the mice, and also accumulated in various organs infiltrated by the cancer cells such as the lung, stomach and bone. The survival of the tumor-bearing mice was prolonged from 34 days to 39 days. This data supports and explains how engineered iPS-NSCs are able to effectively seek out and inhibit tumor growth and proliferation.

Dr Shu Wang shared, "We have demonstrated that tumor-targeting neural stem cells may be derived from human iPS cells, and that these cells may be used in combination with a therapeutic gene to cripple tumor growth. This is a significant finding for stem cell-based cancer therapy, and we will continue to improve and optimize our neural stem cell system by preventing any unwanted activation of the therapeutic gene in non-tumor regions and minimizing possible side effects."

"IBN's expertise in generating human stem cells from iPS cells and our novel use of insect virus carriers for gene delivery have paved the way for the development of innovative stem cell-based therapies. With their two-pronged attack on tumors using genetically engineered neural stem cells, our researchers have discovered a promising alternative to conventional cancer treatment," added Professor Jackie. Y. Ying, IBN Executive Director.

Compared to collecting and expanding primary cells from individual patients, IBN's approach of using iPS cells to derive NSCs is less laborious and suitable for large-scale manufacture of uniform batches of cellular products for repeated patient treatments. Importantly, this approach will help eliminate variability in the quality of the cellular products, thus facilitating reliable comparative analysis of clinical outcomes.

Additionally, these iPS cell-derived NSCs are derived from adult cells, which bypass the sensitive ethical issue surrounding the use of human embryos, and since iPS cells are developed from a patient's own cells, the likelihood of immune rejection would be reduced.

References: 1. J. Yang, D. H. Lam, S. S. Goh, E. X. L. Lee, Y. Zhao, F. Chang Tay, C. Chen, S. Du, G. Balasundaram, M. Shahbazi, C. K. Tham, W. H. Ng, H. C. Toh and S. Wang, "Tumor Tropism of Intravenously Injected Human Induced Pluripotent Stem Cell-derived Neural Stem Cells and their Gene Therapy Application in a Metastatic Breast Cancer Model," Stem Cells, (2012) DOI: 10.1002/stem.1051.

2. E. X. Lee, D. H. Lam, C. Wu, J. Yang, C. K. Tham and S. Wang, "Glioma Gene Therapy Using Induced Pluripotent Stem Cell-Derived Neural Stem Cells," Molecular Pharmaceutics, 8 (2011) 1515-1524.

Read more from the original source:
IBN Discovers Human Neural Stem Cells with Tumor Targeting Ability - A Promising Discovery for Breast Cancer Therapy

ScienceDaily (Apr. 20, 2012) Could engineered human stem cells hold the key to cancer survival? Scientists at the Institute of Bioengineering and Nanotechnology (IBN), the world's first bioengineering and nanotechnology research institute, have discovered that neural stem cells possess the innate ability to target tumor cells outside the central nervous system.

This finding, which was demonstrated successfully on breast cancer cells, was recently published in peer reviewed journal, Stem Cells.

Despite decades of cancer research, cancer remains a leading cause of death worldwide, accounting for 7.6 million deaths in 2008, and breast cancer is one of the most common causes of cancer deaths each year[1]. In Singapore, more than 1,400 women are diagnosed with breast cancer and more than 300 die as a result of breast cancer each year[2]. The high fatality rate of cancer is partially attributed to the invasive ability of malignant tumors to spread throughout the human body, and the ineffectiveness of conventional therapies to eradicate the cancer cells.

A team of researchers led by IBN Group Leader, Dr Shu Wang, has made a landmark discovery that neural stem cells (NSCs) derived from human induced pluripotent stem (iPS) cells could be used to treat breast cancer. The effectiveness of using NSCs, which originate from the central nervous system, to treat brain tumors has been investigated in previous studies. This is the first study that demonstrates that iPS cell-derived NSCs could also target tumors outside the central nervous system, to treat both primary and secondary tumors.

To test the efficiency of NSCs in targeting and treating breast cancer, the researchers injected NSCs loaded with a suicide gene (herpes simplex virus thymidine) into mice bearing breast tumors. They did this using baculoviral vectors or gene carriers engineered from an insect virus (baculovirus), which does not replicate in human cells, making the carriers less harmful for clinical use. A prodrug (ganciclovir), which would activate the suicide gene to kill the cancerous cells upon contact, was subsequently injected into the mice. A dual-colored whole body imaging technology was then used to track the distribution and migration of the iPS-NSCs.

The imaging results revealed that the iPS-NSCs homed in on the breast tumors in the mice, and also accumulated in various organs infiltrated by the cancer cells such as the lung, stomach and bone. The survival of the tumor-bearing mice was prolonged from 34 days to 39 days. This data supports and explains how engineered iPS-NSCs are able to effectively seek out and inhibit tumor growth and proliferation.

Dr Shu Wang shared, "We have demonstrated that tumor-targeting neural stem cells may be derived from human iPS cells, and that these cells may be used in combination with a therapeutic gene to cripple tumor growth. This is a significant finding for stem cell-based cancer therapy, and we will continue to improve and optimize our neural stem cell system by preventing any unwanted activation of the therapeutic gene in non-tumor regions and minimizing possible side effects."

"IBN's expertise in generating human stem cells from iPS cells and our novel use of insect virus carriers for gene delivery have paved the way for the development of innovative stem cell-based therapies. With their two-pronged attack on tumors using genetically engineered neural stem cells, our researchers have discovered a promising alternative to conventional cancer treatment," added Professor Jackie. Y. Ying, IBN Executive Director.

Compared to collecting and expanding primary cells from individual patients, IBN's approach of using iPS cells to derive NSCs is less laborious and suitable for large-scale manufacture of uniform batches of cellular products for repeated patient treatments. Importantly, this approach will help eliminate variability in the quality of the cellular products, thus facilitating reliable comparative analysis of clinical outcomes.

Additionally, these iPS cell-derived NSCs are derived from adult cells, which bypass the sensitive ethical issue surrounding the use of human embryos, and since iPS cells are developed from a patient's own cells, the likelihood of immune rejection would be reduced.

See the original post:
Human neural stem cells with tumor targeting ability discovered

Friday, April 20 15:18:27

Scientists funded by the Medical Research Council (MRC) have made what could turn out to be the fist step towards curing blindness.

Limerick researchers have shown for the first time that transplanting light-sensitive photoreceptors into the eyes of visually impaired mice can restore their vision.

The research, published in Nature, suggests that transplanting photoreceptors -light-sensitive nerve cells that line the back of the eye - could form the basis of a new treatment to restore sight in people with degenerative eye diseases.

Scientists from University College Limerick Institute of Ophthalmology injected cells from young healthy mice directly into the retinas of adult mice that lacked functional rod-photoreceptors. Loss of photoreceptors is the cause of blindness in many human eye diseases including age-related macular degeneration, retinitis pigmentosa and diabetes-related blindness.

There are two types of photoreceptor in the eye - rods and cones. The cells transplanted were immature (or progenitor) rod-photoreceptor cells. Rod cells are especially important for seeing in the dark as they are extremely sensitive to even low levels of light.

After four to six weeks, the transplanted cells appeared to be functioning almost as well as normal rod-photoreceptor cells and had formed the connections needed to transmit visual information to the brain.

The researchers also tested the vision of the treated mice in a dimly lit maze. Those mice with newly transplanted rod cells were able to use a visual cue to quickly find a hidden platform in the maze whereas untreated mice were able to find the hidden platform only by chance after extensive exploration of the maze.

Professor Robin Ali, associate director of research at the Irish patient led research charity Fighting Blindness led the research at UCL Institute of Ophthalmology and Moorfields Eye Hospital.

He said, "We've shown for the first time that transplanted photoreceptor cells can integrate successfully with the existing retinal circuitry and truly improve vision. We're hopeful that we will soon be able to replicate this success with photoreceptors derived from embryonic stem cells and eventually to develop human trials. Although there are many more steps before this approach will be available to patients, it could lead to treatments for thousands of people who have lost their sight through degenerative eye disorders. The findings also pave the way for techniques to repair the central nervous system as they demonstrate the brain's amazing ability to connect with newly transplanted neurons."

See the original post here:
Irish research blindness breakthrough

GRAND RAPIDS, Mich., April 19, 2012 /PRNewswire/ --Researchers at Lund University in Sweden have discovered a new stem cell in the adult brain. These cells can proliferate and form several different cell types -- most importantly, they can form new brain cells. Scientists hope to take advantage of the finding to develop methods to heal and repair disease and injury in the brain.

Analyzing brain tissue from biopsies, the researchers for the first time found stem cells located around small blood vessels in the brain. The cell's specific function is still unclear, but its plastic properties suggest great potential.

"A similar cell type has been identified in several other organs where it can promote regeneration of muscle, bone, cartilage and adipose tissue," said Patrik Brundin, M.D., Ph.D., Jay Van Andel Endowed Chair in Parkinson's Research at Van Andel Research Institute (VARI), Head of the Neuronal Survival Unit at Lund University and senior author of the study.

In other organs, researchers have shown clear evidence that these types of cells contribute to repair and wound healing. Scientists suggest that the curative properties may also apply to the brain. The next step is to try to control and enhance stem cell self-healing properties with the aim of carrying out targeted therapies to a specific area of the brain.

"Our findings show that the cell capacity is much larger than we originally thought, and that these cells are very versatile," said Gesine Paul-Visse, Ph.D., Associate Professor of Neuroscience at Lund University and the study's primary author. "Most interesting is their ability to form neuronal cells, but they can also be developed for other cell types. The results contribute to better understanding of how brain cell plasticity works and opens up new opportunities to exploit these very features."

The study, published in the journal PLoS ONE, is of interest to a broad spectrum of brain research. Future possible therapeutic targets range from neurodegenerative diseases to stroke.

"We hope that our findings may lead to a new and better understanding of the brain's own repair mechanisms," said Dr. Paul-Visse. "Ultimately the goal is to strengthen these mechanisms and develop new treatments that can repair the diseased brain."

Link to the study here:

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0035577

About the Neuronal Survival Unit, Faculty of Medicine, Lund University

Read the rest here:
New Stem Cell Found in the Brain

MARLBOROUGH, Mass.--(BUSINESS WIRE)--

Advanced Cell Technology, Inc. (ACT; OTCBB: ACTC), a leader in the field of regenerative medicine, announced today the dosing of the third patient in its Phase I/II trial for dry age-related macular degeneration (dry AMD) using retinal pigment epithelial (RPE) cells derived from human embryonic stem cells (hESCs). The outpatient transplantation surgery was performed successfully, and the patient is recovering uneventfully.

Gary Rabin, chairman and CEO of ACT, commented, The completion of enrollment of the first cohort of patients in our dry AMD clinical trial is a significant step forward in our RPE clinical program. The first six patients in the U.S. trials have all been treated at UCLA, and as we have recently announced, the trials should soon expand to additional sites. As we have built our clinical team, we have been fortunate to have attracted the attention of some of the highest-caliber ophthalmologists and related institutions in the U.S. and Europe and recognize the huge value that their expertise provides us as we plan for the future of our therapeutic programs. With their guidance, we have also worked with the FDA to successfully expand the criteria of eligibility for patients to participate in our dry AMD trial.

The procedures at UCLA were all conducted by the team led by Steven Schwartz, M.D., Ahmanson Professor of Ophthalmology at the David Geffen School of Medicine at UCLA and retina division chief at UCLA's Jules Stein Eye Institute.

The six patients treated at UCLA to date have tolerated the surgical procedure well. commented Dr. Schwartz. There have been no complications in the procedure, nor any issues relating to the safety of the injected stem cell-derived RPE cells in any of the patients. We continue to regularly evaluate all patients in the trial, and while still preliminary, I am encouraged by the patients progress and the relative straightforwardness of the surgical procedure.

We are extremely pleased with the progress being made in all three of our clinical trials here in the U.S. and the U.K., commented Robert Lanza, M.D., ACTs chief scientific officer. The data we are reviewing seems to be pointing in the appropriate direction, With the treatment of the latest two dry AMD patients, we look forward to having more significant points of reference to understand the progress of the trial and consider the endpoint design for the next phase. Both Stargardts disease and dry AMD are progressive diseases that result vision loss and blindness due to the thinning of the layer of RPE cells in the patient's macula, the central portion of the retina responsible for central vision. We still have many patients left to treat during the course of these trials, but our team remains hopeful that stem cell-derived RPE cells may someday provide a new therapeutic approach for the treatment of many forms of macular degeneration. We hear from patients who suffer from these diseases on nearly a daily basis, and appreciate the huge responsibility we have to them.

ACT is conducting three clinical trials in the U.S. and Europe using hESC-derived RPE cells to treat forms of macular degeneration. Each trial will enroll a total of 12 patients, with cohorts of three patients each in an ascending dosage format. These trials are prospective, open-label studies, designed to determine the safety and tolerability of hESC-derived RPE cells following sub-retinal transplantation into patients with dry-AMD or Stargardt's macular dystrophy (SMD) at 12 months, the studys primary endpoint. Preliminary results relating to both early safety and biological function for the first two patients in the United States, one SMD patient and one dry AMD patient, were recently reported in The Lancet. On January 20, 2012, the first SMD patient to be enrolled in the Companys U.K. clinical trial was treated at Moorfields Eye Hospital in London. The final patient of the first cohort in the companys SMD trial in the U.S. was treated on February 13, 2012.

Further information about patient eligibility for the dry AMD study and the concurrent study on SMD is also available on http://www.clinicaltrials.gov; ClinicalTrials.gov Identifiers: NCT01345006 , NCT01469832 and NCT01344993.

About Advanced Cell Technology, Inc.

Advanced Cell Technology, Inc., is a biotechnology company applying cellular technology in the field of regenerative medicine. For more information, visit http://www.advancedcell.com.

Here is the original post:
ACT Announces Third Dry AMD Patient Treated in Clinical Trial

Photo by Allie Garza

Dr. Zannos Grekos, a cardiologist whose practice is in Bonita Springs, speaks with a seminar attendant after one of his educational seminars about stem cell treatment, using one's own stem cells, for treating heart disease and other medical conditions, on Monday, March 14, 2011, at the Collier County Library. Allie Garza/Staff

K.K.Yankopolus

In a case involving a criminal investigation into the recent death of a 77-year-old man after stem cell treatment, state health authorities say Dr. Zannos Grekos extracted tissue from the patient while a second doctor later injected the patient with his own concentrated stem cells.

But when Grekos, a Bonita Springs cardiologist, initially harvested fatty tissue from Richard Poling's stomach on March 2, he unknowingly damaged the patient's abdomen which led to bleeding, according to a state Department of Health complaint.

New documents obtained by the Daily News shed more light on the case of Grekos and Dr. Konstantine Yankopolus, a Fort Myers obstetrician who assisted Grekos. They face potential disciplinary action from the state Board of Medicine for doing a stem cell treatment that the state says was experimental and dangerous.

The state issued separate administrative complaints against them in late March and early April, a few weeks after Poling died the same day of the treatment. He suffered a cardiac arrest in Grekos' practice on Bonita Beach Road and was pronounced dead at NCH North Naples Hospital.

The Lee County Sheriff's Office launched a criminal investigation in early March and it is ongoing, agency spokesman Larry King said.

Grekos also faces potential discipline when the state restricted his license in February, 2011 in connection to the death of a 69-year-old woman who went to him in 2010 for stem cell therapy.

She sought a remedy for neurological damage after chemotherapy for breast cancer. She fell in her home after the treatment, suffered a brain injury and later was taken off life support.

Read the original here:
State: Grekos extracted tissue from stem cell patient who died, damaged patient's abdomen

Public release date: 17-Apr-2012 [ | E-mail | Share ]

Contact: David Eve celltransplantation@gmail.com Cell Transplantation Center of Excellence for Aging and Brain Repair

Tampa, Fla. (April. 17, 2012) Combined, complimentary therapies have the ability to maximize the benefits of neural stem cell (NSC) transplantation for spinal cord repair in rat models, according to a study carried out by a team of Korean researchers who published in a recent issue of Cell Transplantation (20:9), now freely available on-line at http://www.ingentaconnect.com/content/cog/ct/.

"When transplanted, neural stem cells have demonstrated their therapeutic potential to reverse complex pathological processes following spinal cord injury," said study corresponding author Dr. Byung G. Kim of the Ajou University School of Medicine's Brain Disease Research Center and Department of Neurology, Republic of Korea. "However, many obstacles cannot be overcome by NSC transplant alone."

Their study demonstrated that a combination of treatment strategies - a polymer scaffold, neurotrophin-3 (NT3) and chondroitinase (an enzyme which helps digest the glial scar that formed after a spinal cord injury) - provided added therapeutic benefits to NSC transplantation. The implantation of a polymer scaffold designed to bridge lesion cavities, created a favorable tissue environment for nerve growth. Incorporating the NT3 gene into the transplanted cells improved cell survival and migration while the addition of chondroitinase positively affected neural activity between the scaffold and the spinal cord.

"The poly (-caprolactone) [PCL] scaffold in our study appeared to function like a reservoir supplying migratory NSCs to the spinal cord," said Dr. Kim. "The NSCs grafted with the scaffolds survived the transplantation and migrated to the host spinal cord."

The study included four animal groups, only one of which received the full combination of therapies. Rats in the full combination therapy group were found to have some restored neuroplasticity and enhanced remyelation of contralateral white matter. All four groups subsequently underwent functional testing for locomotor recovery.

"Rats in the full combination group attained well-coordinated plantar stepping accompanied by improved ankle positioning and toe clearance and reduced paw placement errors," explained Dr. Kim. "Furthermore, animals with the full complement of combination strategies responded to transcranial magnetic stimulation."

The researchers concluded that, given their success, similar treatment for humans should be carried out in a chronic injury setting.

"We believe that our results have important clinical implications regarding the future design of NSC-based therapeutic strategies for human victims of traumatic spinal cord injury," concluded Dr. Kim and co-authors.

Read the original post:
Neural stem cell transplants for spinal cord injury maximized by combined, complimentary therapies

BOSTON--(BUSINESS WIRE)--

Inform Genomics, Inc., a private company focused on developing novel platforms of personalized medicine products for cancer supportive care and inflammatory diseases, today announced the completion of the first phase of product development to predict a patients risk of developing oral mucositis after receiving high dose chemotherapy prior to hematopoietic stem cell transplant. The results of this single center, 153-patient study demonstrated the products ability to discriminate which patients develop oral mucositis with 99.3% accuracy and an area under the Receiver Operator Characteristic (ROC) curve of 99.7%. Further development will include validation of these initial results in a multicenter study. In addition, Inform Genomics announced that it entered into a collaboration agreement with Swedish Orphan Biovitrum AB (Sobi) to further develop and commercialize the product. Sobi is a leading integrated biopharmaceutical company dedicated to bringing innovative therapies and services to improve the health of rare disease patients and their families.

We are very pleased with the exciting results of this study, said Ed Rubenstein, M.D., President & CEO of Inform Genomics, and our agreement with Sobi demonstrates the value our technology can bring to biopharma partners while expanding the market opportunity for both companies products. When commercialized, this product will be available for the hematology oncology stem cell transplant market and will complement the target market of our lead product, OnPART for patients with solid tumors.

The principal investigator for the study, Stephen T. Sonis, D.M.D., D.M.Sc., Chief Scientific Officer of Biomodels, LLC, who also serves as the Chief of the Division of Oral Medicine at the Dana-Farber Cancer Institute and Professor of Oral Medicine at the Harvard School of Dental Medicine, will present the results of the study at the upcoming 2012 American Society of Clinical Oncology (ASCO) Annual Meeting, as part of the educational session titled Mucosal Injury in Patients with Cancer: Targeting the Biology, taking place from 11:30 am to 12:45 pm on Sunday, June 3, 2012 in Chicago, IL.

About OnPART

OnPART, Oncology Preferences And Risk of Toxicity, will be Inform Genomics first platform molecular diagnostic test for personalizing treatment decisions for patients undergoing chemotherapy for colorectal, breast, lung or ovarian cancer. Based upon response rates and survival, more than one chemotherapy regimen may be considered appropriate care for patients with these common solid tumors, yet the regimens vary widely in their toxicity profiles, including nausea & vomiting, diarrhea, oral mucositis, cognitive dysfunction, fatigue and peripheral neuropathy. OnPART is being developed to assess genomic risk for these side effects, and to provide valuable information for patients and medical oncologists to help clarify clinical choices.

About Inform Genomics

Inform Genomics, Inc. is a private company focused on developing novel platforms of personalized medicine products for cancer supportive care and inflammatory diseases, including its lead product, OnPART, designed to predict an individuals risk of six common toxicities of commonly used chemotherapy regimens based on his or her individual genomic profile. The Companys business model leverages existing technology in conjunction with proprietary analytic methods for conducting genome-wide association studies. Product development programs will lead to commercial, single source laboratory tests consisting of single-nucleotide polymorphism (SNP) clusters that determine the likelihood of individual patient clinical outcomes to drug therapies. The U.S. market opportunity for these differentiated products exceeds $2 billion annually. Inform Genomics is headquartered in Boston, Massachusetts. For more information, please visit http://www.informgenomics.com.

See the original post:
Inform Genomics Announces Results of Study Predicting Risk of Oral Mucositis in Patients Undergoing High Dose ...

CAMBRIDGE, Mass., April 17, 2012 /PRNewswire/ --ETEX Corporation, an advanced biomaterials company, today announced two presentations at the upcoming Global Technology Community 8th Stem Cell Summit, April 19-20, 2012 at the Hyatt Harborside Hotel in Boston, MA. ETEX will highlight their cell carrier development program in two concurrent tracks: Stem Cell Commercialization & Partnering as well as Stem Cell Research & Regenerative Medicine.

(Logo: http://photos.prnewswire.com/prnh/20080424/NETH117LOGO )

Brian Ennis, President and CEO of ETEX Corporation, will deliver an oral presentation entitled "Orthobiologic Market Dynamics, Vision of the Future" during the Stem Cell Commercialization & Partnering session. Mr. Ennis will highlight key elements of a product lifecycle / replacement technology business model, outlining a new approach to skeletal repair and orthopedic innovation. This approach incorporates the combination of biomaterials and hardware, localized bone treatment with systemic therapy and stem cell delivery.

Dr. David Kaplan, Tufts University and Dr. Jerry Chang, ETEX Corporation scientific team will showcase recent advancements in their Stem Cell Carrier program during the Stem Cell Research & Regenerative Medicine session. The poster & power point presentation is entitled "Calcium Phosphate Combination Biomaterials as Human Mesenchymal Stem Cell (hMSC) Delivery Vehicles for Bone Repair".

Brian Ennis comments, "As a pioneer in growth factor and cell delivery technology, ETEX is excited to participate in this important event. We believe a cell carrier/scaffold is a grossly underestimated critical element for the successful execution of cell therapy in skeletal repair and soft tissue regeneration."

Questions regarding ETEX's participation may be directed to Jerry Chang, PhD., jchang@etexcorp.com or 617-577-7270.

About ETEX Corporation Established in 1989, ETEX Corporation develops, manufactures and commercializes calcium phosphate-based biomaterials for improved orthopedic clinical outcomes. A leader in bioresorbable bone substitute materials, ETEX focuses on expanding applications through combinations with cells, biologics, or therapeutic agents delivered in minimally invasive and easy to use systems. For more information, visit http://www.etexcorp.com.

Read the original post:
ETEX Corporation to Present at GTC Stem Cell Summit

WESTON, Fla., April 17, 2012 (GLOBE NEWSWIRE) -- Stemlogix, a regenerative medicine company offering premier in-clinic stem cell therapy solutions to veterinarians, announced today that it has selected Butler Schein Animal Health(TM) to distribute its regenerative medicine system, stem cell therapy kits and other biological therapies. Butler Schein Animal Health(TM) - a Henry Schein Company - is the largest companion animal health distribution company in the U.S.

Based in the U.S., Stemlogix is an innovative leader in the rapidly emerging field of veterinary regenerative medicine. The Company develops and manufactures stem cell therapy kits and platelet rich plasma kits domestically according to FDA cGMP regulations. Stemlogix offers scientifically validated technologies and protocols that will enable veterinarians to provide their patients with affordable, versatile regenerative medicine solutions including adipose (fat) and bone marrow derived stem cells, platelet rich plasma (PRP) and cytokine therapies at the point-of-care, all in less than 90 minutes. The Company also offers stem cell banking and stem cell expansion services to veterinarians around the country.

Butler Schein Animal Health(TM) will now offer the Stemlogix regenerative medicine system to its network of over 26,000 veterinary clinics in the U.S., helping Stemlogix to expand its market presence across North America. "We are excited to be working with Butler Schein to offer the Stemlogix in-clinic regenerative medicine system to their vast network of veterinarians," said Kristin Comella, CEO of Stemlogix. "This partnership will enable Stemlogix to help standardize and advance the field of regenerative medicine."

Clinical research has shown that regenerative stem cell therapies have been safely and effectively used to treat degenerative diseases and acute tissue injuries including arthritis, laminitis, tendon injuries and ligament injuries. Stemlogix has developed an array of convenient, affordable, same-day regenerative therapies designed to achieve reproducible and superior clinical outcomes. Stemlogix also has developed an innovative technique to remove stem cell rich fat tissue from horses in a minimally invasive, scar-free method, called Equine VetLipo(TM).

About Stemlogix, LLC

Stemlogix is an innovative veterinary regenerative medicine company committed to providing veterinarians with the ability to deliver the best possible stem cell therapy to dogs, cats and horses at the point-of-care. Stemlogix provides veterinarians the ability to produce PRP and isolate regenerative stem cells from a patient's own fat tissue or bone marrow in their own clinic. Stemlogix is the first company to provide veterinarians with the ability to produce multiple cellular therapies using the same system and the company offers the most versatile regenerative medicine system available. Stemlogix has a full scale cGMP stem cell manufacturing facility and a scientific team with expertise in developing stem cell products, FDA compliance and clinical research. For more information about veterinary regenerative medicine please visit http://www.stemlogix.com.

About Butler Schein Animal Health(TM)

Butler Schein Animal Health (Butler Schein) -- the veterinary division of Henry Schein (Nasdaq: HSIC - News) is the leading companion animal health distribution company in the United States headquartered in Dublin, Ohio. Butler Schein employs approximately 900 team members including 300 field sales representatives and 200 telesales and customer support representatives. With 15 strategically positioned, state-of-the-art distribution facilities and 10 inside sales centers nationwide, we maintain 98%+ order-fill ratio, accomplishing our mission of providing the right product at the right place and at the right time.

Partnering with over 400 leading animal health manufacturers in the world, Butler Schein is positioned to bring the broadest selection of veterinary products and strategic solutions to veterinary professionals nationwide, including:

1.

Read more:
Stemlogix Selects Butler Schein Animal Health to Distribute Versatile In-Clinic Stem Cell Therapy System to ...

Source:
http://feeds.feedburner.com/integratedmedicine

Source:
http://feeds.feedburner.com/integratedmedicine