Loss of <i>p</i> 21 increases sensitivity to ionizing radiation and delays the onset of lymphoma in <i>atm</i> -deficient mice

Abstract excerpt

Ataxia telangiectasia (AT) is an autosomal recessive disorder characterized by growth retardation, cerebellar ataxia, oculocutaneous telangiectasias, and a high incidence of lymphomas and leukemias. In addition, AT patients are sensitive to ionizing radiation. Atm-deficient mice recapitulate most of the AT phenotype. p21(cip1/waf1 )(p21 hereafter), an inhibitor of cyclin-dependent kinases, has been implicated in...

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