Title |
Toxoplasma Parasite Twisting Motion Mechanically Induces Host Cell Membrane Fission to Complete Invasion within a Protective Vacuole
|
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Published in |
Cell Host & Microbe (Science Direct), June 2018
|
DOI | 10.1016/j.chom.2018.06.003 |
Pubmed ID | |
Authors |
Georgios Pavlou, Mateusz Biesaga, Bastien Touquet, Vanessa Lagal, Martial Balland, Alexandre Dufour, Mohamed-ali Hakimi, Isabelle Tardieux |
Abstract |
To invade cells, the parasite Toxoplasma gondii injects a multi-unit nanodevice into the target cell plasma membrane (PM). The core nanodevice, which is composed of the RhOptry Neck (RON) protein complex, connects Toxoplasma and host cell through a circular tight junction (TJ). We now report that this RON nanodevice mechanically promotes membrane scission at the TJ-PM interface, directing a physical rotation driven by the parasite twisting motion that enables the budding parasitophorous vacuole (PV) to seal and separate from the host cell PM as a bona fide subcellular Toxoplasma-loaded PV. Mechanically impairing the process induces swelling of the budding PV and death of the parasite but not host cell. Moreover, this study reveals that the parasite nanodevice functions as a molecular trigger to promote PV membrane remodeling and rapid onset of T. gondii to intracellular lifestyle. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 13 | 26% |
United Kingdom | 8 | 16% |
France | 6 | 12% |
Germany | 2 | 4% |
Mexico | 1 | 2% |
Canada | 1 | 2% |
Chile | 1 | 2% |
Mozambique | 1 | 2% |
Spain | 1 | 2% |
Other | 1 | 2% |
Unknown | 15 | 30% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 27 | 54% |
Scientists | 19 | 38% |
Science communicators (journalists, bloggers, editors) | 2 | 4% |
Practitioners (doctors, other healthcare professionals) | 2 | 4% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 84 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 21 | 25% |
Student > Bachelor | 13 | 15% |
Researcher | 11 | 13% |
Student > Master | 9 | 11% |
Student > Doctoral Student | 5 | 6% |
Other | 7 | 8% |
Unknown | 18 | 21% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 18 | 21% |
Agricultural and Biological Sciences | 18 | 21% |
Immunology and Microbiology | 14 | 17% |
Engineering | 4 | 5% |
Chemistry | 3 | 4% |
Other | 7 | 8% |
Unknown | 20 | 24% |