StemCell Therapy

Researchers have discovered a cell that is the "missing link" between bone marrow stem cells and all the cells of the human immune system, according to a release from the University of California, Los Angeles. This finding promises to lead to a more profound understanding of how a healthy immune system is created and as well as how disease can cause poor immune function.

The study's senior author, Dr. Gay Crooks, was quoted as saying, " We felt it was especially important to do these studies using human bone marrow, as most research into the development of the immune system has used mouse bone marrow.The few studies with human tissue have mostly used umbilical cord blood, which does not reflect the immune system of post-natal life."

Understanding the process of normal blood formation in human adults is a crucial step in shedding light on what goes wrong during the process that results in leukemias, cancers of the blood. The findings were published online in the journal Nature Immunology.

"The identification of a progenitor in human bone marrow primed for full lymphoid differentiation will now permit delineation of the molecular regulation of the first stages of lymphoid commitment in human hematopoiesis," the authors wrote. "It will also allow understanding of how these processes are affected during aberrant hematopoiesis in disease states."

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Stem Cells & Immune System: "Missing Link" Found

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