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HIV-1 Envelope Overcomes NLRP3-Mediated Inhibition of F-Actin Polymerization for Viral Entry
Cell Reports
  • Audrey Paoletti, Stabilité génétique et oncogenèse
  • Awatef Allouch, Stabilité génétique et oncogenèse
  • Marina Caillet, Stabilité génétique et oncogenèse
  • Hela Saïdi, Institut Pasteur, Paris
  • Frédéric Subra, Laboratoire de Biologie et de Pharmacologie Appliquée
  • Roberta Nardacci, IRCCS Istituto Nazionale Malattie Infettive Lazzaro Spallanzani
  • Qiuji Wu, Stabilité génétique et oncogenèse
  • Zeinaf Muradova, Stabilité génétique et oncogenèse
  • Laurent Voisin, Stabilité génétique et oncogenèse
  • Syed Qasim Raza, Stabilité génétique et oncogenèse
  • Frédéric Law, Stabilité génétique et oncogenèse
  • Maxime Thoreau, Stabilité génétique et oncogenèse
  • Haithem Dakhli, Stabilité génétique et oncogenèse
  • Olivier Delelis, Laboratoire de Biologie et de Pharmacologie Appliquée
  • Béatrice Poirier-Beaudouin, Institut Pasteur, Paris
  • Nathalie Dereuddre-Bosquet, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes
  • Roger Le Grand, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes
  • Olivier Lambotte, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes
  • Asier Saez-Cirion, Institut Pasteur, Paris
  • Gianfranco Pancino, Institut Pasteur, Paris
  • David M. Ojcius, University of the Pacific, California
  • Eric Solary, Stabilité génétique et oncogenèse
  • Eric Deutsch, Radiothérapie Moléculaire
  • Mauro Piacentini, IRCCS Istituto Nazionale Malattie Infettive Lazzaro Spallanzani
  • Marie Lise Gougeon, Institut Pasteur, Paris
  • Guido Kroemer, Stabilité génétique et oncogenèse
  • Jean Luc Perfettini, Stabilité génétique et oncogenèse
ORCiD
David M. Ojcius: 0000-0003-1461-4495
Department
Biomedical Sciences
Document Type
Article
DOI
10.1016/j.celrep.2019.02.095
Publication Date
9-24-2019
Disciplines
Abstract

© 2019 The Author(s) Purinergic receptors and nucleotide-binding domain leucine-rich repeat containing (NLR) proteins have been shown to control viral infection. Here, we show that the NLR family member NLRP3 and the purinergic receptor P2Y2 constitutively interact and regulate susceptibility to HIV-1 infection. We found that NLRP3 acts as an inhibitory factor of viral entry that represses F-actin remodeling. The binding of the HIV-1 envelope to its host cell receptors (CD4, CXCR4, and/or CCR5) overcomes this restriction by stimulating P2Y2. Once activated, P2Y2 enhances its interaction with NLRP3 and stimulates the recruitment of the E3 ubiquitin ligase CBL to NLRP3, ultimately leading to NLRP3 degradation. NLRP3 degradation is permissive for PYK2 phosphorylation (PYK2Y402∗) and subsequent F-actin polymerization, which is required for the entry of HIV-1 into host cells. Taken together, our results uncover a mechanism by which HIV-1 overcomes NLRP3 restriction that appears essential for the accomplishment of the early steps of HIV-1 entry.

Creative Commons License
Creative Commons Attribution 4.0 International
Citation Information
Audrey Paoletti, Awatef Allouch, Marina Caillet, Hela Saïdi, et al.. "HIV-1 Envelope Overcomes NLRP3-Mediated Inhibition of F-Actin Polymerization for Viral Entry" Cell Reports Vol. 28 Iss. 13 (2019) p. 3381 - 3394.e7 ISSN: 2211-1247
Available at: http://works.bepress.com/david-ojcius/301/