Abstract
Endocytosis has long been thought of as simply a way for cells to internalize nutrients and membrane-associated molecules. But an explosive growth in knowledge has given a new dimension to our understanding of this process. It now seems that endocytosis is a master organizer of signalling circuits, with one of its main roles being the resolution of signals in space and time. Many of the functions of endocytosis that are emerging from recent research cannot yet be reconciled with the canonical view of intracellular trafficking but, instead, point to endocytosis being integrated at a deeper level in the cellular 'master plan' (the cellular network of signalling circuits that lie at the base of the cell's make-up). Deconvolution of this level, which we call the 'endocytic matrix', might uncover a fundamental aspect of how a cell is built.
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Acknowledgements
We apologize to those colleagues whose primary research papers or important discoveries could not be properly acknowledged because of space constraints. We thank A. Sorkin and M. von Zastrow for sharing, ahead of publication, their excellent review on endocytosis and signalling. We also thank P. R. Romano for critically editing the manuscript. Work in the authors' laboratories is supported by grants from the following: the Italian Association for Cancer Research (AIRC) and the Italian Ministry of Education, University and Scientific Research (MIUR) (to G.S. and P.P.D.F.); the Association for International Cancer Research (G.S.); and the Italian Ministry of Health, the European Community, the European Research Council, the Cariplo Foundation, the Ferrari Foundation and the Monzino Foundation (P.P.D.F.).
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Reprints and permissions information is available at http://www.nature.com/reprints. Correspondence should be addressed to P.P.D.F. (pierpaolo.difiore@ifom-ieo-campus.it) or G.S. (giorgio.scita@ifom-ieo-campus.it).
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Scita, G., Di Fiore, P. The endocytic matrix. Nature 463, 464–473 (2010). https://doi.org/10.1038/nature08910
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DOI: https://doi.org/10.1038/nature08910
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