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Studying marrow, URMC researchers accelerate blood stem cells
Date:12/5/2012

University of Rochester Medical Center scientists are testing a new approach to speed a patient's recovery of blood counts during a vulnerable period after a stem-cell transplant, according to a study published in the journal Stem Cells.

Laura M. Calvi, M.D., and Rebecca L. Porter, an M.D./Ph.D. student in Calvi's lab, reported that prostaglandin E2 (PGE2), a drug previously used to treat stomach ulcers, boosts blood production following an assault on the bone marrow from radiation or chemotherapy. Although their study was done in mice, Calvi believes it has significance for patients in the future.

"Our research suggests exciting potential to remedy myelosuppression," said Calvi, an associate professor of Medicine at URMC, with a special interest in endocrine/metabolism and the way blood stem cells behave. "During the first six weeks or so after a transplant, patients can easily acquire serious infections due to low blood counts. It's during this window that we're investigating new opportunities for replenishing cells in the bone marrow, and understanding the mechanisms by which this occurs."

Stem cell transplants, also known as bone marrow transplants or peripheral blood transplants, can be life-saving therapies for people with leukemia, other blood cancers, or blood disorders. The James P. Wilmot Cancer Center at URMC performs about 120 transplants a year, making it the largest program in western New York.

Blood stem cells mostly live in the bone marrow (spongy center of bones) where they divide or stay quiet, mature, and then enter the blood stream, or die. Many things influence the behavioral choices of these cells. And when leukemia, certain types of lymphoma, or injury from chemo and radiation destroys blood stem cells, a transplant offers a fresh replacement.

However, wiping out blood cells (healthy cells and cancer) during the transplant process also presents grave risks for the patient. Transplant success is partly determi
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Contact: Leslie Orr
Leslie_Orr@urmc.rochester.edu
University of Rochester Medical Center
Source:Eurekalert

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