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Human CD45 is an f-component-specific receptor for the staphylococcal toxin Panton-Valentine leukocidin

  • Angelino T. Tromp
  • , Michiel Van Gent
  • , Pauline Abrial
  • , Amandine Martin
  • , Joris P. Jansen
  • , Carla J.C. De Haas
  • , Kok P.M. Van Kessel
  • , Bart W. Bardoel
  • , Elisabeth Kruse
  • , Emilie Bourdonnay
  • , Michael Boettcher
  • , Michael T. McManus
  • , Christopher J. Day
  • , Michael P. Jennings
  • , Gérard Lina
  • , François Vandenesch
  • , Jos A.G. Van Strijp
  • , Robert Jan Lebbink
  • , Pieter Jan A. Haas
  • , Thomas Henry*
  • András N. Spaan
*Corresponding author for this work
  • Utrecht University
  • University Medical Centre Utrecht
  • The University of Chicago
  • Universite Claude Bernard Lyon 1
  • University of California at San Francisco
  • Griffith University Queensland
  • Rockefeller University

Research output: Contribution to journal › Article › Academic › peer-review

75 Citations (Scopus)

Abstract

The staphylococcal bi-component leukocidins Panton-Valentine leukocidin (PVL) and γ-haemolysin CB (HlgCB) target human phagocytes. Binding of the toxins' S-components to human complement C5a receptor 1 (C5aR1) contributes to cellular tropism and human specificity of PVL and HlgCB. To investigate the role of both leukocidins during infection, we developed a human C5aR1 knock-in (hC5aR1 KI ) mouse model. HlgCB, but unexpectedly not PVL, contributed to increased bacterial loads in tissues of hC5aR1 KI mice. Compared to humans, murine hC5aR1 KI neutrophils showed a reduced sensitivity to PVL, which was mediated by the toxin's F-component LukF-PV. By performing a genome-wide CRISPR-Cas9 screen, we identified CD45 as a receptor for LukF-PV. The human-specific interaction between LukF-PV and CD45 provides a molecular explanation for resistance of hC5aR1 KI mouse neutrophils to PVL and probably contributes to the lack of a PVL-mediated phenotype during infection in these mice. This study demonstrates an unsuspected role of the F-component in driving the sensitivity of human phagocytes to PVL.

Original languageEnglish
Pages (from-to)708-717
Number of pages10
JournalNature Microbiology
Volume3
Issue number6
DOIs
Publication statusPublished - 1 Jun 2018
Externally publishedYes

Bibliographical note

Publisher Copyright: © 2018 The Author(s).

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