Abstract
Simian virus 40 (SV40) genes are able to induce immortalization of normal human cells after a culture crisis during which unknown cellular genetic changes presumably occur. To determine whether these genetic changes are always identical, we performed somatic cell hybridization analysis of an SV40-immortalized human bronchial epithelial cell line, BET-1A. Fusion of BET-1A with an SV40-immortalized fibroblast cell line resulted in hybrids that senesced, indicating that these cell lines are in different complementation groups for immortalization.
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