Kiyono, T Both Rb/p16INK4a inactivation and telomerase activity are required to immortalize human epithelial cells. [electronic resource] - Nature Nov 1998 - 84-8 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0028-0836 Standard No.: 10.1038/23962 doi Subjects--Topical Terms: Breast--cytologyCell Transformation, NeoplasticCell Transformation, ViralCells, CulturedCellular Senescence--physiologyCyclin-Dependent Kinase Inhibitor p16--antagonists & inhibitorsDNA-Binding ProteinsEnzyme InductionHumansKeratinocytes--cytologyOncogene Proteins, Viral--physiologyProteins--physiologyRNARepressor ProteinsRetinoblastoma Protein--antagonists & inhibitorsTelomerase--physiology