title: Centrosome and retroviruses: the dangerous liaisons.
abstract: Centrosomes are the major microtubule organizing structures in vertebrate cells. They localize in close proximity to the nucleus for the duration of interphase and play major roles in numerous cell functions. Consequently, any deficiency in centrosome function or number may lead to genetic instability. Several viruses including retroviruses such as, Foamy Virus, HIV-1, JSRV, M-PMV and HTLV-1 have been shown to hamper centrosome functions for their own profit, but the outcomes are very different. Foamy viruses, HIV-1, JSRV, M-PMV and HTLV-1 use the cellular machinery to traffic towards the centrosome during early and/or late stages of the infection. In addition HIV-1 Vpr protein alters the cell-cycle regulation by hijacking centrosome functions. Enthrallingly, HTLV-1 Tax expression also targets the functions of the centrosome, and this event is correlated with centrosome amplification, aneuploidy and transformation.
authors: Unité d'Epidémiologie et Physiopathologie des Virus Oncogènes, CNRS URA 3015, Département de Virologie, Institut Pasteur, Paris, France. pafonso@pasteur.fr
authors: Philippe V
authors: PV
authors: Afonso
authors: Alessia
authors: A
authors: Zamborlini
authors: Ali
authors: A
authors: Saïb
authors: Renaud
authors: R
authors: Mahieux
mesh_terms: D000818:Animals; D017209:Apoptosis; D002453:Cell Cycle; D049109:Cell Proliferation; D002472:Cell Transformation, Viral; D018385:Centrosome / Q000502:physiology* / Q000821:virology*; D006801:Humans; D012190:Retroviridae / Q000502:physiology*; D014779:Virus Replication