Viral FLICE-inhibitory proteins (FLIPs) prevent apoptosis induced by death receptors - PubMed (original) (raw)

. 1997 Apr 3;386(6624):517-21.

doi: 10.1038/386517a0.

P Schneider, K Hofmann, H Fickenscher, E Meinl, F Neipel, C Mattmann, K Burns, J L Bodmer, M Schröter, C Scaffidi, P H Krammer, M E Peter, J Tschopp

Affiliations

Viral FLICE-inhibitory proteins (FLIPs) prevent apoptosis induced by death receptors

M Thome et al. Nature. 1997.

Abstract

Viruses have evolved many distinct strategies to avoid the host's apoptotic response. Here we describe a new family of viral inhibitors (v-FLIPs) which interfere with apoptosis signalled through death receptors and which are present in several gamma-herpesviruses (including Kaposi's-sarcoma-associated human herpesvirus-8), as well as in the tumorigenic human molluscipoxvirus. v-FLIPs contain two death-effector domains which interact with the adaptor protein FADD, and this inhibits the recruitment and activation of the protease FLICE by the CD95 death receptor. Cells expressing v-FLIPs are protected against apoptosis induced by CD95 or by the related death receptors TRAMP and TRAIL-R. The herpesvirus saimiri FLIP is detected late during the lytic viral replication cycle, at a time when host cells are partially protected from CD95-ligand-mediated apoptosis. Protection of virus-infected cells against death-receptor-induced apoptosis may lead to higher virus production and contribute to the persistence and oncogenicity of several FLIP-encoding viruses.

PubMed Disclaimer

Similar articles

Cited by

Publication types

MeSH terms

Substances

LinkOut - more resources