Abstract
Huntington's disease is an hereditary dominant neurodegenerative disorder clinically characterised by progressive motor deficits, personality changes, decreased mental capacity and death after about 15-20 years. Most studies are based on the research of intrinsic mechanisms that could be responsible for dysfunction and later degeneration of neuronal subsets. It is only in the last five years that more interest has been focused on another brain cell type : the astrocytes. This review presents evidence that astroglial function is also affected in Huntington's disease. Among the possible mechanisms, Huntington's disease mutation may alter the EGF receptor signaling pathway, that regulates the astrocytic response to neuronal injuries.
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