The immune system's fountain of youth

ScienceDaily | 12/31/2018 | Staff
Mireille (Posted by) Level 3
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The research began with an investigation into the way that the immune system is involved in a crucial activity: clearing away old, senescent cells that spell trouble for the body when they hang around. Senescent cells -- not completely dead but suffering loss of function or irreparable damage -- have been implicated in diseases of aging by promoting inflammation. The researchers used mice in which a crucial gene for this immune activity was missing. At two years (elderly, for mice), the bodies of these mice had a greater accumulation of senescent cells compared with the mice in which the gene for removing these cells was intact. The mice missing the gene suffered from chronic inflammation, and various functions in their bodies appeared to be diminished. They also looked older -- and died earlier -- than their normal counterparts.

Next, the researchers gave the mice a drug that inhibits the function of certain proteins that help the aging cells survive in their senescent state, to see if this would...
(Excerpt) Read more at: ScienceDaily
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