StemCell Therapy

Current ratings for: Scientists make pure precursor liver and pancreas cells from stem cells

Public / Patient:

0 (0 votes)

Health Professionals:

5 (1 vote)

A new study published in the journal Cell Stem Cell, describes how scientists have developed a way of producing highly sought populations of a pure tissue-specific cell from human pluripotent stem cells.

Human pluripotent stem cells (hPSCs) are precursor cells than can produce over 200 distinct cell types in the human body. They hold great promise for regenerative medicine and drug screening. The idea is to be able to generate a range of pure tissue types by manipulating these precursor cells.

However, it is proving very challenging to obtain large numbers of pure, untainted, tissue-specific cells from hPSCs. Part of the problem is how to ensure they receive highly specific signals, that do not coax them down paths that lead to a range of other tissue types.

Now, a team led by the Genome Institute of Singapore (GIS) in the Agency for Science, Technology and Research (A*STAR) has developed a new way of coaxing hPSCs to produce highly pure populations of endoderm, a valuable cell type that gives rise to organs like the liver and pancreas, bringing closer the day when stem cells can be used in clinical settings.

One of the study leaders is Dr. Bing Lim, senior group leader and associate director of Cancer Stem Cell Biology at the GIS. He and his colleagues developed a highly systematic and novel screening method.

Read more:
Scientists make pure precursor liver and pancreas cells from stem cells

29/01/2014 - 15:56:06Back to World Home

A revolutionary new approach to creating stem cells in the laboratory could open up a new era of personalised medicine, it is claimed.

Scientists have shown it is possible to reprogramme cells into an embryonic-like state simply by altering their environment.

It means in principle that cells can have their developmental clock turned back without directly interfering with their genes something never achieved before.

The cells become pluripotent, having the potential ability to transform themselves into virtually any kind of tissue in the body, from brain to bone.

Reprogramming a patients own cells in this way is seen as the Holy Grail of regenerative medicine, raising the prospect of repairing diseased and damaged organs with new healthy tissue that will not be rejected by the immune system.

Current methods of performing the same trick involve genetic manipulation, which carries with it a serious risk of triggering cancer.

But the new method described in the journal Nature requires no genetic tweaking. Scientists simply bathed immature white blood cells from mice in an acidic solution for 25 minutes.

Tests showed that, stressed in this way, some of the cells lost their blood identity and produced gene markers typical of early embryos.

When these cells were transferred to a special growth-promoting culture medium they began to multiply and acquired features typical of embryonic stem cells.

See the original post:
Stem cell breakthrough may herald age of personalised medicine

Haruko Obokata / Nature

Japanese researchers have created a new type of stem cell just by pressuring normal cells in the body. This image shows a mouse embryo created using these cells, which are genetically engineered to glow green.

Scientists have made a whole new type of stem cell using little more than a little acid, and they say it may represent a way to skip all the complex and controversial steps that it now takes to make cells to regenerate tissues and organs.

The team in Japan includes some of the foremost experts in making what are called pluripotent stem cells master cells that have the power to morph into any type of cells, from blood to bone to muscle. These master cells look and act like an embryo right after conception and, like a days-old embryo, have the power to generate new tissue of any type.

Making these powerful cells usually requires the use of embryos something many disapprove of or tricky mixtures of genes to turn back the clock.

While theres not an immediate use for the discovery, it could add to the arsenal of tools that scientists can use in trying to find ways to repair the human body, the team reports in this weeks issue of the journal Nature.

It is also exciting to think about the new possibilities this finding offers, not only in areas like regenerative medicine but also perhaps in the study of senescence and cancer as well, Haruko Obokata of the RIKEN Center for Developmental Biology in Kobe, Japan, told reporters in a conference call.

Obokatas team worked with mice, and found they could get ordinary cells from baby mice to turn into pluripotent stem cells by bathing them in a slightly acidic solution. They call them stimulus-triggered acquisition of pluripotency, or STAP, cells.

Other stem cells experts praised the work. These breakthroughs are so impressive and potentially powerful truly another dramatic game-changer, said Dr. Gerald Schatten, a stem cell and genetic engineering expert at the University of Pittsburgh.

If reproducible in humans, this will be a paradigm changer," said Dr. Robert Lanza of Massachusetts-based Advanced Cell Technology, a company developing stem cell-based treatments.

Follow this link:
Scientists make a new type of stem cell, using a little acid

In experiments that could open a new era in stem cell biology, scientists have found a cheap and easy way to reprogram mature cells from mice back into an embryonic-like state that allowed them to generate many types of tissue.

The research, described as game-changing by experts in the field, suggests human cells could in future be reprogrammed by the same technique, offering a simpler way to replace damaged cells or grow new organs for sick and injured people.

Chris Mason, chair of regenerative medicine bioprocessing at University College London, who was not involved in the work, said its approach was "the most simple, lowest-cost and quickest method" to generate so-called pluripotent cells - able to develop into many different cell types - from mature cells.

"If it works in man, this could be the game changer that ultimately makes a wide range of cell therapies available using the patient's own cells as starting material - the age of personalized medicine would have finally arrived," he said.

The experiments, reported in two papers in the journal Nature on Wednesday, involved scientists from the RIKEN Center for Developmental Biology in Japan and Brigham and Women's Hospital and Harvard Medical School in the United States.

Beginning with mature, adult cells, researchers let them multiply and then subjected them to stress "almost to the point of death", they explained, by exposing them to various events including trauma, low oxygen levels and acidic environments.

Within days, the scientists found that the cells survived and recovered from the stressful stimulus by naturally reverting into a state similar to that of an embryonic stem cell.

These stem cells created by this exposure to stresses - dubbed STAP cells by the researchers - were then able to differentiate and mature into different types of cells and tissue, depending on the environments they were given.

"If we can work out the mechanisms by which differentiation states are maintained and lost, it could open up a wide range of possibilities for new research and applications using living cells," said Haruko Obokata, who lead the work at RIKEN.

Stem cells are the body's master cells and are able to differentiate into all other types of cells. Scientists say that, by helping to regenerate tissue, they could offer ways of tackling diseases for which there are currently only limited treatments - including heart disease, Parkinson's and stroke.

See the rest here:
Scientists create embryonic-type stem cells without embryos

In experiments that could open a new era in stem cell biology, scientists have found a simple way to reprogramme mature animal cells back into an embryonic-like state that allows them to generate many types of tissue.

The research, described as game-changing by experts in the field, suggests human cells could in future be reprogrammed by the same technique, offering a simpler way to replace damaged cells or grow new organs for sick and injured people.

Chris Mason, chair of regenerative medicine bioprocessing at University College London, who was not involved in the work, said its approach in mice was "the most simple, lowest-cost and quickest method" to generate so-called pluripotent cells - able to develop into many different cell types - from mature cells.

"If it works in man, this could be the game changer that ultimately makes a wide range of cell therapies available using the patient's own cells as starting material - the age of personalised medicine would have finally arrived," he said.

The experiments, reported in two papers in the journal Nature on Wednesday, involved scientists from the RIKEN Center for Developmental Biology in Japan and Brigham and Women's Hospital and Harvard Medical School in the United States.

The researchers took skin and blood cells, let them multiply, then subjected them to stress "almost to the point of death", they explained, by exposing them to various events including trauma, low oxygen levels and acidic environments.

One of these "stressful" situations was simply to bathe the cells in a weak acid solution for around 30 minutes.

Within days, the scientists found that the cells had not only survived but had also recovered by naturally reverting into a state similar to that of an embryonic stem cell.

These stem cells - dubbed Stimulus-Triggered Acquisition of Pluripotency, or STAP, cells by the researchers - were then able to differentiate and mature into different types of cells and tissue, depending on the environments they were put in.

"NEW ERA"

Read the original post:
Scientists hail stem cell breakthrough

28 January 2014-Scientists from the Genome Institute of Singapore (GIS) in A*STAR have developed a novel method of directing human pluripotent stem cells (hPSCs) into highly pure populations of endoderm[1], a valuable cell type that gives rise to organs including the liver and pancreas.

These cells are highly sought-after for therapeutic and biotechnological purposes, but have been historically difficult to attain from hPSCs. The ability to generate pure endoderm at higher yields from hPSCs is a key and important step towards the use of stem cells in clinical applications.

The discovery, published in the prestigious scientific journal Cell Stem Cell in January 2014, was led by Dr Bing Lim, Senior Group Leader and Associate Director of Cancer Stem Cell Biology at the GIS, Dr Lay Teng Ang, a postdoctoral fellow from Dr Lims lab, and Kyle Loh, a graduate student at Stanford University School of Medicine.

hPSCs are stem cells that can generate over 200 distinct cell types in the human body. They respond to multiple external protein instructions to differentiate into other cell types. Therefore, generating one single cell type from hPSCs, and a pure population of that given cell type, is delicate as hPSCs have a tendency to also form other types of cells.

Employing a highly systematic and novel approach, the group screened for proteins and chemicals that promote the formation of a single desired cell type, and concurrently block induction of unwanted cell types. This strategy uncovered a combination of triggers that could drive hPSCs towards pure populations of endoderm. The valuable cells produced and the insights gained from this work have brought stem cells one step closer to clinical translation and furthered basic research into the understanding of how cell fates are specified during stem cell differentiation.

View post:
:: 28, Jan 2014 :: SINGAPORE SCIENTISTS SUCCEED IN MANIPULATING STEM CELLS INTO LIVER AND PANCREAS PRECURSOR CELLS

Best Vitamin C Serum for your Face with Rejuvenating Apple Stem Cells
http://amzn.to/1aT8FcA While Supply Lasts, A 20% off discount Coupon. The Best Vitamin C Serum for your Face with Rejuvenating Apple Stem Cells. Use code CL3...

By: Mark E Wilkins

Excerpt from:
Best Vitamin C Serum for your Face with Rejuvenating Apple Stem Cells - Video

Failure to legislate will hurt research

Tuesday, January 28, 2014

Even though stem cell manufacture has just been licensed in this country, the Governments ongoing failure to legislate in this area means pharmaceutical giants will still be wary of investing here, according to an expert in stem cell therapy.

CCMI General Manager Andrew Finnerty, CCMI Director Tim O'Brien, Minister Sean Sherlock and President of NUI Galway Dr. James Browne. Photograph by Aengus McMahon

Once the stem cells are harvested from the bone marrow of adult donors, they are grown in the Galway laboratory to generate sufficient quantities.

The first clinical trial using these stem cells is being funded by the Health Research Board and Science Foundation Ireland and will investigate the safety of using mesenchymal stem cells (MSCs) isolated from bone marrow for the treatment of critical limb ischemia, a complication associated with diabetes which can lead to limb amputation.

John ODea of the Irish Medical Devices Association (IMDA) said the centre was a key step.

I look forward to seeing its continued growth to assist in developing the skill sets and techniques that will be needed to embrace the new manufacturing opportunities that this exciting area will bring, he said.

The centre, one of a handful in Europe authorised for stem cell manufacture, has been developed by researchers at NUIGs regenerative medicine institute.

However, Dr Stephen Sullivan, chief scientific officer with the Irish Stem Cell Foundation warned all stem cell research operates at a pan-global level driven by big pharma and international equity firms and these players will only engage with researchers in countries where there is solid stem cell legislation in place. He welcomed the centre as a first step but said if Ireland is to compete at a top international standard, legislation remains necessary.

Go here to see the original:
Failure to legislate ‘will hurt research’

Stem Cells age reversal study - Caleb
http://a1stemcells.com/anti-aging-2 testimony Stem cell therapy changed Caleb #39;s life. Caleb 36yo, recorded during his 7th injection. Stem cells anti-aging program is held in Mexico - If you...

By: A1 Stem Cells

The rest is here:
Stem Cells age reversal study - Caleb - Video

Embryonic stem cells have been highly valued for their ability to turn into any type of cell in the body.

Stem cells can be manufactured for human use for the first time in Ireland, following Irish Medicines Board licensing of a new facility in Galway.

NUI Galways Centre for Cell Manufacturing Ireland aims to culture adult stem cells to tackle conditions such as arthritis, heart disease, diabetes and associated conditions.

The centre, which is one of less than half a dozen in Europe authorised for stem cell manufacture, has been developed by researchers at NUIGs regenerative medicine institute.

Stem cells serve as the bodys repair mechanism. They can be isolated from tissues such as bone marrow and fat, and cultured in laboratory settings.

More controversially, embryonic stem cells have been highly valued for their ability to turn into any type of cell in the body, but scientists can now use reprogrammed adult skin cells to create a stem cell that is very similar to embryonic versions.

The centre will be opened today by Minister of State for Research and Innovation Sen Sherlock, at a time when the Health Research Board and Science Foundation Ireland have approved funding there for clinical trials on using mesenchymal stem cells cells that can differentiate into a variety of types for treatment of critical limb ischemia, a condition associated with diabetes that can result in amputation.

The new centres director Prof Tim OBrien explained that the stem cells must be grown in the laboratory to generate sufficient quantities, following their isolation from the bone marrow of adult donors, and the facility will help Ireland to develop therapies for a broad range of clinical problems which do not have effective treatments today.

It will also allow us to translate discoveries from the basic stem cell research programme led by Prof Frank Barry at the Science Foundation Ireland-funded REMEDI to the clinic, and to be competitive for grant funding under the Horizon 2020 programme of the EU, he said.

Stem cell research in Ireland is in what scientists have described as a legislative lacuna, but this relates to use of embryonic stem cells and does not in any way inhibit the use of adult stem cells, Prof OBrien explained.

Read the original post:
Ireland’s first stem cell manufacturing centre approved at NUI Galway

Embryonic stem cells have been highly valued for their ability to turn into any type of cell in the body.

Stem cells can be manufactured for human use for the first time in Ireland, following Irish Medicines Board licensing of a new facility in Galway.

NUI Galways Centre for Cell Manufacturing Ireland aims to culture adult stem cells to tackle conditions such as arthritis, heart disease, diabetes and associated conditions.

The centre, which is one of less than half a dozen in Europe authorised for stem cell manufacture, has been developed by researchers at NUIGs regenerative medicine institute.

Stem cells serve as the bodys repair mechanism. They can be isolated from tissues such as bone marrow and fat, and cultured in laboratory settings.

More controversially, embryonic stem cells have been highly valued for their ability to turn into any type of cell in the body, but scientists can now use reprogrammed adult skin cells to create a stem cell that is very similar to embryonic versions.

The centre will be opened today by Minister of State for Research and Innovation Sen Sherlock, at a time when the Health Research Board and Science Foundation Ireland have approved funding there for clinical trials on using mesenchymal stem cells cells that can differentiate into a variety of types for treatment of critical limb ischemia, a condition associated with diabetes that can result in amputation.

The centres director, Prof Tim OBrien, saidstem cell research in Ireland is in a legislative lacuna, but this relates to use of embryonic stem cells and does not in any way inhibit the use of adult stem cells.

Original post:
Island’s first stem cell manufacturing centre approved at NUI Galway

Abandoned dog receives historic stem cell therapy
Veterinarians across the country now have a way to improve the lives of their patients by using a tool to combat osteoarthritis. On Thursday, one dog made hi...

By: UpNorthLive

See more here:
Abandoned dog receives historic stem cell therapy - Video

ELLSWORTH Visitors to the Bellaire pet crisis center With a Little help From My Friends get an official welcome from Moka.

The Labrador retriever was found behind a Bellaire restaurant in 2011 and now serves as the centers mascot.

Peforming her duties has been increasingly difficult for the dog, who suffers from severe arthritis in her hips. So recently the center turned to Ellsworth veterinarian Christian Randall of North Country Veterinary Services, the first in northern Michigan to offer in-clinic adipose stem cell therapy.

The procedure uses a pets own blood and tissue to produce plasma-rich platelets and stem cells that proliferate growth in damaged areas.

Dormant stem cells are separated from adipose -- fat tissue -- and activated with an LED technology that uses three different wave lengths of light. Then the cells are injected directly into the affected area or administered intravenously to help promote regeneration. The result is a decrease in pain and lameness and increased range of motion.

Its using the bodys own repair cells to repair damage, said Trey Smith, director of laboratory services for MediVet America, which developed the technology Randall uses.

The therapy is the first treatment to help heal and slow the progression of osteoarthritis and degenerative joint disease rather than just cope with the symptoms, said Randall, who saw the results while studying at Virginia Equine Imaging and now plans to use it on equine as well as canine and feline patients.

It concentrates, speeds up and amplifies the bodys own healing power, he said.

Stem cell therapy has been around for a while, but in-clinic availability of the technology is new. Only a handful of veterinarians in Ann Arbor and Grand Rapids offer the services, said Randall, who charges $1,800 to treat a dog or cat. Repeat injections are possible with banked plasma-rich platelets and stem cells.

Before the one-day procedure, veterinarians had to send blood and tissue to an outside lab for processing, a more costly three-day procedure that requires an animal's return visit to the vet for injection.

Read the original here:
Stem-cell therapy restores faith for arthritic pets

Diabetes: Progress toward stem cell therapies
California #39;s Stem Cell Agency (CIRM) hosted a live Google Hangout about recent progress in stem cell based strategies for diabetes therapies. The speakers in...

By: California Institute for Regenerative Medicine

Go here to see the original:
Diabetes: Progress toward stem cell therapies - Video

Stem Cells Help Cerebral Palsy! Sophia #39;s Story
Meet Sophia. She came to Dr. Steenblock for stem cell therapy to help her Cerebral Palsy. Amazingly, the patient had great results after only one stem cell t...

By: David Steenblock

Original post:
Stem Cells Help Cerebral Palsy! Sophia's Story - Video

Save A Life - Register As A Stem Cell Donor - http://www.deletebloodcancer.org.uk
You can save a Life. It could be our daughter Margot #39;s, or someone else #39;s. Register. Swab. Save a life. You can make a real difference. It only takes a few m...

By: Team Margot - Uncle Ivor

See original here:
Save A Life - Register As A Stem Cell Donor - http://www.deletebloodcancer.org.uk - Video

stem cell therapy treatment for cerebral palsy sri lanka by dr alok sharma, mumbai, india
improvement seen in just 3 months after stem cell therapy treatment for cerebral palsy by dr alok sharma, mumbai, india. Stem Cell Therapy done date 4/10/201...

By: Neurogen Brain and Spine Institute

Originally posted here:
stem cell therapy treatment for cerebral palsy sri lanka by dr alok sharma, mumbai, india - Video

Philadelphia, PA (PRWEB) January 23, 2014

Bioquark, Inc., (http://www.bioquark.com) a company focused on the development of combinatorial biologics for regeneration and disease reversion in human organs and tissues, today announces the appointment of Dr. Joel I. Osorio MD, as VP of International Clinical Development.

We are honored to have someone with Dr. Osorios experience join us as we execute on a globalized clinical strategy, said Ira S. Pastor, CEO, Bioquark Inc. His broad clinical experience in functional anti-aging regenerative and stem cell based medicine make him a very valuable addition to the Bioquark team.

Dr. Osorio brings over 9 years of experience in medical practice, both in the private practice and public medical settings. Currently the medical director of the medical spa Bamboo Rejuvenecimiento Facial y Coporal (http://www.bamboobelleza.com), Dr. Osorio has served in capacities in both private and public practice, as a hospital staff physician, and as emergency health services coordinator for a variety of private and public institutions throughout Mexico. He earned MD degrees at both Westhill University and the National Autonomous University of Mexico as a medical surgeon, has diplomas in aesthetic medicine from the Autonomous University of Guadalajara, is an Advance Fellow by the American Board of Anti-Aging and Regenerative Medicine (http://www.a4m.com/joel-osorio-bamboo-rejuvenecimiento-facial-y-corporal-naucalpan-estado-de-mxico.html), is a visiting scholar at University of North Carolina at Chapel Hill in dermatology, a fellow in stem cell medicine by the American Academy of Anti-Aging Medicine and University of South Florida, and currently is completing additional masters work in metabolic and nutrition sciences at University of South Florida. Dr. Osorio is also a member of the round table of ReGeNeRaTe Laboratories Mexico Committee (a DNAge-Lab Company), and has been actively working in the applied stem cell field since 2007. In 2011, Dr. Osorio became a member of the International Cellular Medicine Society, is a PRP certified practitioner in aesthetic and regenerative fields, and from 2009 to 2012 managed the blood bank at Ruben Lenero public hospital. Dr. Osorio frequently appears on Mexican national television programs and interviews regularly as a speaker on the topic of anti-aging (http://www.youtube.com/watch?v=Z4SvkBTS-P0) as well as contributes in various magazines and periodicals on anti-aging related subjects.

I am very excited about the candidates being developed at Bioquark and their very novel approach to human regeneration and disease reversion, as well as the broader biological programs focused on anti-aging," said Dr. Osorio. "I'm pleased to be joining the team and am looking forward to playing a more active role in this truly transformational platform."

About Bioquark, Inc. Bioquark Inc. (http://www.bioquark.com) is focused on the development of biologic based products that have the ability to alter the regulatory state of human tissues and organs, with the goal of curing a wide range of diseases, as well as effecting complex regeneration. Bioquark is developing biological pharmaceutical candidates, as well as products for the global consumer health and wellness market segments.

Excerpt from:
Bioquark Inc. Appoints Dr. Joel I. Osorio MD, Specialist in Functional Anti-Aging Regenerative and Stem Cell Medicine ...

Jan. 22, 2014 Scientists have known for years that stem cells in male and female sexual organs are regulated differently by their respective hormones. In a surprising discovery, researchers at the Children's Medical Center Research Institute at UT Southwestern (CRI) and Baylor College of Medicine have found that stem cells in the blood-forming system -- which is similar in both sexes -- also are regulated differently by hormones, with estrogen proving to be an especially prolific promoter of stem cell self-renewal.

The research, published in Nature, raises several intriguing possibilities for further investigation that might lead to improved treatments for blood cancers and increased safety and effectiveness of chemotherapy.

Before the finding, blood-forming stem cells were thought to be regulated similarly in both males and females, according to the paper's senior author, Dr. Sean Morrison, Director of CRI, Professor of Pediatrics, and the Mary McDermott Cook Chair in Pediatric Genetics at UT Southwestern Medical Center.

However, while working in Dr. Morrison's laboratory as postdoctoral fellows, Dr. Daisuke Nakada, the first and co-corresponding author of the study, and Dr. Hideyuki Oguro discovered that blood-forming stem cells divide more frequently in females than in males due to higher estrogen levels. The research, conducted using mice, demonstrated that the activity of blood-forming stem cells was regulated by systemic hormonal signals in addition to being regulated by local changes within the blood-forming system.

"This discovery explains how red blood cell production is augmented during pregnancy," said Dr. Morrison. "In female mice, estrogen increases the proliferation of blood-forming stem cells in preparation for pregnancy. Elevated estrogen levels that are sustained during pregnancy induce stem cell mobilization and red cell production in the spleen, which serves as a reserve site for additional red blood cell production."

The study involved treating male and female mice over a period of several days with amounts of estrogen needed to achieve a level consistent with pregnancy. When an estrogen receptor that is present within blood-forming stem cells was deleted from those cells, they were no longer able to respond to estrogen, nor were they able to increase red blood cell production. The results demonstrate that estrogen acts directly on the stem cells to increase their proliferation and the number of red blood cells they generate.

"If estrogen has the same effect on stem cells in humans as in mice, then this effect raises a number of possibilities that could change the way we treat people with diseases of blood cell-formation," said Dr. Morrison. "Can we promote regeneration in the blood-forming system by administering estrogen? Can we reduce the toxicity of chemotherapy to the blood-forming system by taking into account estrogen levels in female patients? Does estrogen promote the growth of some blood cancers? There are numerous clinical opportunities to pursue."

View original post here:
Scientists find estrogen promotes blood-forming stem cell function

stem cell therapy treatment for Right Hemiparesis Cerebral Palsy by dr alok sharma, mumbai, india
improvement seen in just 5 days after stem cell therapy treatment for Right Hemiparesis Cerebral Palsy by dr alok sharma, mumbai, india. Stem Cell Therapy do...

By: Neurogen Brain and Spine Institute

Read the original here:
stem cell therapy treatment for Right Hemiparesis Cerebral Palsy by dr alok sharma, mumbai, india - Video