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Mount Sinai Researchers Succeed in Programming Blood Forming Stem Cells
Date:6/13/2013

New York, NY (PRWEB) June 13, 2013

By transferring four genes into mouse fibroblast cells, researchers at the Icahn School of Medicine at Mount Sinai have produced cells that resemble hematopoietic stem cells, which produce millions of new blood cells in the human body every day. These findings provide a platform for future development of patient-specific stem/progenitor cells, and more differentiated blood products, for cell-replacement therapy.

The study, titled, “Induction of a Hemogenic Program in Mouse Fibroblasts,” was published online in CELL STEM CELL on June 13. Mount Sinai researchers screened a panel of 18 genetic factors for inducing blood-forming activity and identified a combination of four transcription factors, Gata2, Gfi1b, cFos, and Etv6 as sufficient to generate blood vessel precursor cells with the subsequent appearance of hematopoietic cells. The precursor cells express a human CD34 reporter, Sca1 and Prominin1 within a global endothelial transcription program.

“The cells that we grew in a petri dish are identical in gene expression to those found in the mouse embryo and could eventually generate colonies of mature blood cells,” said the first author of the study, Carlos Filipe Pereira, PhD, Postdoctoral Fellow of Developmental and Regenerative Biology at the Icahn School of Medicine.

Other leaders of the research team that screened the genetic factors to find the right combination included Kateri Moore, DVM, Associate Professor of Developmental and Regenerative Biology at the Icahn School and Ihor R. Lemischka, PhD, Professor of Developmental and Regenerative Biology, Pharmacology and Systems Therapeutics and Director of

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