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Fat Tissue May Be a Source of Valuable Blood Stem Cells, Study Says
Date:1/29/2010

and the peripheral blood, the more HSPCs they would find in the SVF.

The study results provide compelling evidence that the SVF derived from adipose tissue contains functional HSPCs capable of generating hematopoietic (blood-forming) cells. Importantly, researchers found that the cells were able to differentiate into a variety of hematopoietic cells when tracked for at least 16 weeks post-transplantation, which reflects long-term and permanent reconstitution of donor hematopoietic cells in recipients.

The frequency of HSPCs in the adipose tissue found in the study was significantly less than that found in bone marrow (approximately 0.2 percent of the HSPCs found in total bone marrow). Therefore, researchers wanted to determine whether the SVF might be used practically as an alternative source of HSPCs. Fortunately, according to the researchers, a vast amount of the SVF in adipose tissue can be easily obtained from patients using conventional liposuction and isolation methods that are safe and relatively pain-free.

“These study results suggest that more HSPCs might be obtained from the stromal vascular fraction through increased mobilization of these cells from the bone marrow using G-CSF,” said Dr. Koh. “So once a technology can be defined to purify HSPCs from the stromal vascular fraction, we believe adipose tissue may be a good alternative and novel resource for obtaining functional and transplantable HSPCs.”

The research team is actively extending their research in this area, including plans for a human clinical study. They also emphasize the need for a clinically safer and more efficient method for isolating the HSPCs from the adipose tissue.

Reporters who wish to receive a copy of the study or arrange an interview with Dr. Koh may contact Patrick Irelan at 202-776-0544 or pirelan(at)hematology(dot)org.

The American Society of Hematology ('/>"/>

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