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Novel drug therapy targets aggressive form of non-Hodgkin's lymphoma
Date:12/10/2012

NEW YORK (Dec. 10, 2012) -- Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of non-Hodgkin's lymphoma and the seventh most frequently diagnosed cancer. The most chemotherapy resistant form of DLBCL, called activated B-cell DLBCL (ABC-DLBCL), remains a major therapeutic challenge. An international research team, led by two laboratories from Weill Cornell Medical College, has developed a new experimental drug therapy to target this aggressive form of lymphoma.

In the journal Cancer Cell, researchers report the discovery of an experimental small molecule agent, MI-2, that irreversibly inactivates MALT1 -- a key protein responsible for driving the growth and survival of ABC-DLBCL cells.

"In our study we show the drug MI-2 we developed inactivates any MALT1 protein it touches, and without any apparent toxicity in animal models," says the study's lead investigator, Dr. Ari Melnick, associate professor of medicine and director of the Raymond and Beverly Sackler Center for Biomedical and Physical Sciences at Weill Cornell Medical College.

The research team, which includes investigators from Spain, Canada and several other U.S. institutions, are now working to optimize the drug while testing MI-2 with other drug therapies that could be less toxic than current chemotherapy regimens.

"No single drug can cure lymphoma. This is why we need to combine agents that can strike-out the different cellular pathways that lymphoma cells use to survive," says Dr. Melnick, who is also a hematologist-oncologist at NewYork-Presbyterian Hospital/Weill Cornell Medical Center. "We want to eliminate the use of toxic chemotherapy in the treatment of lymphoma patients, and these new study findings take us one-step closer to our goal of creating effective combinational molecular targeted therapy regimens to reduce treatment toxicity and improve lymphoma patient outcomes."

"A Bona Fide Therapeutic Target"

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Contact: Lauren Woods
Law2014@med.cornell.edu
646-317-7401
New York- Presbyterian Hospital/Weill Cornell Medical Center/Weill Cornell Medical College
Source:Eurekalert

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