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Biol Aujourdhui. 2018;212(1-2):45-51. doi: 10.1051/jbio/2018023. Epub 2018 Oct 26.

[Endosomal control of intracellular signaling].

[Article in French]

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The Kennedy Institute of Rheumatology, University of Oxford, OX3 7FY, Oxford, UK.
Institut Curie - Centre de Recherche, PSL Research University, Membrane Dynamics and Mechanics of Intracellular Signaling Laboratory, 75248 Paris Cedex 05, France - Institut National de la Santé et de la Recherche Médicale (INSERM), U1143, Paris, France - Centre National de la Recherche Scientifique (CNRS), UMR 3666, Paris, France.


Membrane receptors control essential processes such as cell growth, adhesion, differentiation and metabolism through the activation of specific signaling pathways. Nowadays, these receptors are not only known to signal from the plasma membrane but also from intracellular compartments. Indeed, after being internalized with their ligands via different endocytic pathways, some membrane receptors can initiate signal only after reaching the sorting endosome where they associate with specific protein partners. This review illustrates how this spatio-temporal regulation of signal transduction can occur, with several examples, including interferon receptors which activate JAK/STAT signaling pathways. The literature presented here explains why this control of signaling pathways occuring at the endosomal level creates a higher degree of tuning for the affected cellular processes.


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