Increased susceptibility to SV40 transformation with development and in vitro aging.

Abstract

The incidence of most cancers increases with aging. To examine whether this increased risk might be related to a higher susceptibility of older cells to neoplastic transformation, we transfected rat fibroblasts aged in vivo and in vitro with origin-defective SV40 DNA and measured the number of transformed foci. Substantial increases in the number of… (More)

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