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A form of immune therapy might be effective for multiple myeloma
Date:5/12/2014

COLUMBUS, Ohio A new study by researchers at The Ohio State University Comprehensive Cancer Center Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC James) provides evidence that genetically modifying immune cells might effectively treat multiple myeloma, a disease that remains incurable and will account for an estimated 24,000 new cases and 11,100 deaths in 2014 The researchers modified a type of human immune cell called T lymphocytes, or T cells to target a molecule called CS1, which is found on more than 95 percent of myeloma cells, and to kill the cells. The researchers grew the modified cells in the lab to increase their numbers and then injected them into an animal model where they again killed human myeloma cells. The findings were published in the journal Clinical Cancer Research.

"Despite current drugs and use of bone marrow transplantation, multiple myeloma is still incurable, and almost all patients eventually relapse," says co-principal investigator and multiple myeloma specialist Craig Hofmeister, MD, MPH, assistant professor of medicine and a member of the OSUCCC James Translational Therapeutics Program.

"This study presents a novel strategy for treating multiple myeloma, and we hope to bring it to patients as part of a phase I clinical trial as soon as possible," Hofmeister says.

"In particular, our study shows that we can modify T lymphocytes to target CS1, and that these cells efficiently destroy human multiple myeloma cells," says principal investigator Jianhua Yu, PhD, assistant professor of medicine and a member of the OSUCCC James Leukemia Research Program.

"An important possible advantage to this approach is that these therapeutic T cells have the potential to replicate in the body, and therefore they might suppress tumor growth and prevent relapse for a prolonged period," Yu says.

For this study, Yu, Hofmeister and their colleagues used cell lines and fresh myeloma cel
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Contact: Darrell E. Ward
Darrell.Ward@osumc.edu
614-293-3737
Ohio State University Wexner Medical Center
Source:Eurekalert

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