Flotillins promote T cell receptor sorting through a fast Rab5-Rab11 endocytic recycling axis

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Datum
2019
Autor:innen
Redpath, Gregory M. I.
Ecker, Manuela
Kapoor-Kaushik, Natasha
Vartoukian, Haig
Carnell, Michael
Kempe, Daryan
Biro, Maté
Ariotti, Nicholas
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Nature communications. 2019, 10(1), 4392. eISSN 2041-1723. Available under: doi: 10.1038/s41467-019-12352-w
Zusammenfassung

The targeted endocytic recycling of the T cell receptor (TCR) to the immunological synapse is essential for T cell activation. Despite this, the mechanisms that underlie the sorting of internalised receptors into recycling endosomes remain poorly understood. To build a comprehensive picture of TCR recycling during T cell activation, we developed a suite of new imaging and quantification tools centred on photoactivation of fluorescent proteins. We show that the membrane-organising proteins, flotillin-1 and -2, are required for TCR to reach Rab5-positive endosomes immediately after endocytosis and for transfer from Rab5- to Rab11a-positive compartments. We further observe that after sorting into in Rab11a-positive vesicles, TCR recycles to the plasma membrane independent of flotillin expression. Our data suggest a mechanism whereby flotillins delineate a fast Rab5-Rab11a endocytic recycling axis and functionally contribute to regulate the spatial organisation of these endosomes.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
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Cellular imaging, Endosomes, T-cell receptor
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ISO 690REDPATH, Gregory M. I., Manuela ECKER, Natasha KAPOOR-KAUSHIK, Haig VARTOUKIAN, Michael CARNELL, Daryan KEMPE, Maté BIRO, Nicholas ARIOTTI, Jérémie ROSSY, 2019. Flotillins promote T cell receptor sorting through a fast Rab5-Rab11 endocytic recycling axis. In: Nature communications. 2019, 10(1), 4392. eISSN 2041-1723. Available under: doi: 10.1038/s41467-019-12352-w
BibTex
@article{Redpath2019-09-26Floti-47518,
  year={2019},
  doi={10.1038/s41467-019-12352-w},
  title={Flotillins promote T cell receptor sorting through a fast Rab5-Rab11 endocytic recycling axis},
  number={1},
  volume={10},
  journal={Nature communications},
  author={Redpath, Gregory M. I. and Ecker, Manuela and Kapoor-Kaushik, Natasha and Vartoukian, Haig and Carnell, Michael and Kempe, Daryan and Biro, Maté and Ariotti, Nicholas and Rossy, Jérémie},
  note={Article Number: 4392}
}
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