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Intraflagellar transport is required for polarized recycling of the TCR/CD3 complex to the immune synapse
Open accessAbstract
Most eukaryotic cells have a primary cilium which functions as a sensory organelle. Cilia are assembled by intraflagellar transport (IFT), a process mediated by multimeric IFT particles and molecular motors. Here we show that lymphoid and myeloid cells, which lack primary cilia, express IFT proteins. IFT20, an IFT component essential for ciliary assembly, was found to colocalize with both the microtubule organizing centre (MTOC) and Golgi and post-Golgi compartments in T-lymphocytes. In antigen-specific conjugates, IFT20 translocated to the immune synapse. IFT20 knockdown resulted in impaired T-cell receptor/CD3 (TCR/CD3) clustering and signalling at the immune synapse, due to defective polarized recycling. Moreover, IFT20 was required for the inducible assembly of a complex with other IFT components (IFT57 and IFT88) and the TCR. The results identify IFT20 as a new regulator of immune synapse assembly in T cells and provide the first evidence to implicate IFT in membrane trafficking in cells lacking primary cilia, thereby introducing a new perspective on IFT function beyond its role in ciliogenesis.
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Citations
Cited by
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Nishita, M., Park, S.-Y., Nishio, T., Kamizaki, K., Wang, Z., Tamada, K., Takumi, T., Hashimoto, R., Otani, H., Pazour, G. J., et al. (2017) · Scientific Reports · doi:10.1038/s41598-016-0028-x · Cited by 15,947
Self-citationGenes and molecular pathways underpinning ciliopathies
Reiter, J. F., & Leroux, M. R. (2017) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm.2017.60 · Cited by 1,588
Ciliogenesis: building the cell's antenna
Ishikawa, H., & Marshall, W. F. (2011) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm3085 · Cited by 961
Dustin, M. L. (2014) · Cancer Immunology Research · doi:10.1158/2326-6066.cir-14-0161 · Cited by 502
Functional interaction between autophagy and ciliogenesis
Pampliega, O., Orhon, I., Patel, B., Sridhar, S., Díaz-Carretero, A., Beau, I., Codogno, P., Satir, B. H., Satir, P., & Cuervo, A. M. (2013) · Nature · doi:10.1038/nature12639 · Cited by 424
Metadata
- Authors
- Finetti, F., Paccani, S. R., Riparbelli, M. G., Giacomello, E., Perinetti, G., Pazour, G. J., Rosenbaum, J. L., & Baldari, C. T.
- Venue
- Nature Cell Biology
- Published
- 2009-10-25
- Volume
- 11
- Issue
- 11
- Pages
- 1332-1339
- ISSN
- 1465-7392 (ISSN-L)
- 1476-4679
- OpenAlex
- W2075898272
- Cited by
- 310
- References
- 0
- FWCI
- 11.58
- Type
- journal article
- Language
- en
- Open access
- green
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- Finetti, F., Paccani, S. R., Riparbelli, M. G., Giacomello, E., Perinetti, G., Pazour, G. J., Rosenbaum, J. L., & Baldari, C. T. (2009). Intraflagellar transport is required for polarized recycling of the TCR/CD3 complex to the immune synapse. Nature Cell Biology. https://doi.org/10.1038/ncb1977
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