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Colleen Delaney: An Expert in Cord Blood Transplantation

Released: 8-Jan-2014 5:00 PM EST
Source Newsroom: Fred Hutchinson Cancer Research Center
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While Dr. Colleen Delaney considers childbirth as a miracle in itself, she also sees its potential to offer a miracle of another kind—a cure for cancer.

By harnessing the healing power of umbilical cord blood, Delaney, who established and directs the Fred Hutchinson Cancer Research Center's program in cord blood transplantation, is pioneering a treatment that’s proving to be a landmark breakthrough for leukemia patients. In Delaney's hands, cord blood stem cells offer hope to desperately ill patients by helping them replace ravaged blood systems.

Medical researchers have long known that cord blood is a potential source of stem cells—which are not the same as embryonic stem cells—for transplants to treat leukemia and other blood diseases, but the small number of these cells in each unit collected has hampered its use. The low cell count meant it took too long for the transplant to take hold, leaving patients at risk of life-threatening infections.

Delaney and her lab colleagues have toppled this barrier by developing a revolutionary technique that expands the cells 164-fold, resulting in successful and rapid engraftment and making cord blood transplants a safe, effective possibility for adults.

Cord blood has advantages as a stem cell source. It is readily available, fewer viral infections are transmitted with it, and it doesn't require the extremely close genetic matching of bone marrow transplants. That makes it especially promising for the 16,000 leukemia patients diagnosed each year who can't find a matching donor—many of whom are of mixed ethnic or racial ancestry. Delaney has numerous clinical trials under way and is optimistic that cord blood will someday enable “a donor for everyone.”

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