Research output per year
Research output per year
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
Research output: Contribution to journal › Article › Academic › peer-review
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 (hC5aR1KI) mouse model. HlgCB, but unexpectedly not PVL, contributed to increased bacterial loads in tissues of hC5aR1KI mice. Compared to humans, murine hC5aR1KI 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 hC5aR1KI 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 language | English |
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Pages (from-to) | 708-717 |
Number of pages | 10 |
Journal | Nature Microbiology |
Volume | 3 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 2018 |
Research output: Contribution to journal › Comment/Letter to the editor › Academic › peer-review