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New Use for an Old Drug: Chloroquine Finding May Lead to Treatments for Arthritis, Cancer, and Other Diseases
Date:7/18/2011

GRAND RAPIDS, Mich., July 18, 2011 /PRNewswire/ -- In a study published recently in the journal Science Signaling Van Andel Research Institute (VARI) scientists demonstrate on the molecular level how the anti-malaria drug chloroquine represses inflammation, which may provide a blueprint for new strategies for treating inflammation and a multitude of autoimmune diseases such as arthritis, multiple sclerosis, and certain cancers.

"The implications of this study are significant," said Henry F. McFarland, Ph.D., former Chief of the Neuroimmunology Branch of the National Institute of Neurological Disorders and Stroke (NINDS). "These results provide a mechanistic basis for therapeutic strategies for treating inflammation and autoimmune diseases and should provide exciting new approaches which can be tested in clinical trials."

The National Institutes of Health (NIH) lists more than 80 common autoimmune diseases including asthma, Guillain-Barre syndrome, multiple sclerosis, myasthenia gravis, psoriasis, rheumatoid arthritis, and some types of cancers among many others.

Dr. H. Eric Xu, Head of the VARI Center for Structural Biology and Drug Discovery, and his colleagues showed that chloroquine represses inflammation through synergistic activation of glucocorticoid signaling. Glucocorticoids are a class of steroid hormones that bind to the glucocorticoid receptor present in almost every vertebrate animal cell. They are among the most potent and effective agents for treating inflammation and autoimmune diseases.

"The discovery and development of novel uses of glucocorticoids that retain their beneficial therapeutic effects but reduce undesired adverse side effects remains a major medical challenge," said VARI Research Scientist Yuanzheng He, Ph.D., lead author
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SOURCE Van Andel Research Institute
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