Article
Accumulation of wild-type p53 in astrocytomas is associated with increased p21 expression.
Acta neuropathologica - 1 Jul 1997
Ono Y, Tamiya T, Ichikawa T, Matsumoto K, Furuta T, Ohmoto T, Akiyama K, Seki S, Ueki K, Louis D N
Abstract excerpt
Approximately one quarter of human astrocytomas show immunohistochemical positivity for p53 protein but lack p53 gene mutations, which could reflect either an accumulation of wild-type p53 protein or an inadequate sensitivity of mutation detection. Since wild-type p53 up-regulates p21 expression, increased p21 expression in those astrocytomas with p53 accumulation in the absence of mutations would argue that the...
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