Conditional immortalization of primary cells by human papillomavirus type 18 E6 and EJ-ras defines an E6 activity in G0/G1 phase which can be substituted for mutations in p53.

Abstract excerpt

The human papillomavirus (HPV) type 18 E6 gene cooperates with activated Ha-ras to immortalize primary mouse cells in culture. Using a plasmid where HPV18 E6 expression is regulated by the glucocorticoid inducible MMTV LTR, we have generated immortalized cell lines in which the continued expression of E6 was necessary for maintenance of the transformed phenotype. In the absence of exogenously added hormone these...

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