title: Antiapoptotic activity of bovine papilloma virus.
abstract: Transformed fibroblasts have been recently shown to be sensitive for induction of apoptosis by TGF-beta-treated neighbouring untransformed cells. Cells transformed by a variety of different transformation principles were regularly sensitive for intercellular induction of apoptosis, but fibroblasts transformed by bovine papillomavirus (BPV) represented a striking exception. In contrast to chemically transformed C127 cells, BPV-transformed C127 cells showed resistance against intercellular induction of apoptosis. In addition, BPV-transformed cells were resistant against induction of apoptosis by ROS in glutathione depleted cells. The antiapoptotic function of papillomaviruses may be of central importance for papillomavirus-induced tumor formation as it can protect transformed cells from intercellular control of oncogenesis.
authors.affiliation: UNIV FREIBURG,ABT VIROL,INST MED MIKROBIOL & HYG,D-79104 FREIBURG,GERMANY.
authors.forename: W
authors.initials: W
authors.lastname: Melchinger
authors.forename: S
authors.initials: S
authors.lastname: Strauss
authors.forename: B
authors.initials: B
authors.lastname: Zucker
authors.forename: G
authors.initials: G
authors.lastname: Bauer