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Optimizing Bone Marrow Transplants

Techonology Networks | January 10, 2019

Bone marrow transplants, which involve transplanting healthy blood stem cells, offer the best treatment for many types of cancers, blood disorders, and immune diseases. Even though 22,000 of these procedures are performed each year in the US, much remains to be understood about how they work. A new USC and Stanford study, conducted in mice, deepens the mystery, showing that successfully transplanted stem cells don’t behave “normally” as in a healthy person without a transplant. Instead, the radiation and high-dose chemotherapy used to wipe out diseased stem cells prior to transplantation appear to trigger “extreme behavior” in the newly transplanted cells. The findings appeared in Proceedings of the National Academy of the Sciences (PNAS) on January 8.
“Our research has important implications for understanding and optimizing bone marrow transplants and certain types of gene therapy,” said lead researcher and co-corresponding author Rong Lu, assistant professor of stem cell biology and regenerative medicine at USC. The other co-corresponding author is Irving Weissman, director of the Stanford Institute for Stem Cell Biology and Regenerative Medicine.

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