Title | Identification of a Novel Recycling Sequence in the C-tail of FPR2/ALX Receptor: Association with Cell Protection from Apoptosis |
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Authors | Thompson, D., McArthur, S., Hislop, J.N., Flower, R.J., Perretti, M. and James N. Hislop |
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Abstract | Formyl-peptide receptor type 2 (FPR2; also called ALX because it is the receptor for lipoxin A4) sustains a variety of biological responses relevant to the development and control of inflammation, yet the cellular regulation of this G-protein-coupled receptor remains unexplored. Here we report that, in response to peptide agonist activation, FPR2/ALX undergoes β-arrestin-mediated endocytosis followed by rapid recycling to the plasma membrane. We identify a transplantable recycling sequence that is both necessary and sufficient for efficient receptor recycling. Furthermore, removal of this C-terminal recycling sequence alters the endocytic fate of FPR2/ALX and evokes pro-apoptotic effects in response to agonist activation. This study demonstrates the importance of endocytic recycling in the anti-apoptotic properties of FPR2/ALX and identifies the molecular determinant required for modulation of this process fundamental for the control of inflammation. |
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Journal | Journal of Biological Chemistry |
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Journal citation | 289 (52), pp. 36166-78 |
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ISSN | 0021-9258 |
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Year | 2014 |
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Publisher's version | |
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Digital Object Identifier (DOI) | https://doi.org/10.1074/jbc.M114.612630 |
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Web address (URL) | http://dx.doi.org/10.1074/jbc.M114.612630 |
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Publication dates |
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Published | 17 Oct 2014 |
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Funder | Wellcome Trust |
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License | CC BY 3.0 |
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