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HIV Hides in Bone Marrow: Researchers

Finding may pave way for new AIDS treatments
By Newser Editors and Wire Services
Posted Mar 7, 2010 2:45 PM CST

(Newser) – The virus that causes AIDS can hide in the bone marrow, avoiding drugs and later awakening to cause illness, according to new research that could point the way toward better treatments for the disease. Finding that hideout is a first step, but years of research lie ahead. Dr. Kathleen Collins of the University of Michigan and her colleagues report in this week's edition of the journal Nature Medicine that HIV can infect long-lived bone marrow cells that eventually convert into blood cells.

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The virus is dormant in the bone marrow cells, she said, but when those progenitor cells develop into blood cells, it can be reactivated and cause renewed infection. The virus kills the new blood cells and then moves on to infect other cells. "If we're ever going to be able to find a way to get rid of the cells, the first step is to understand" where a latent infection can continue, Collins said. (Read more HIV/AIDS stories.)

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