PMID- 26066081 OWN - NLM STAT- MEDLINE DCOM- 20160323 LR - 20240210 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 6 DP - 2015 Jun 12 TI - WASH and Tsg101/ALIX-dependent diversion of stress-internalized EGFR from the canonical endocytic pathway. PG - 7324 LID - 10.1038/ncomms8324 [doi] LID - 7324 AB - Stress exposure triggers ligand-independent EGF receptor (EGFR) endocytosis, but its post-endocytic fate and role in regulating signalling are unclear. We show that the p38 MAP kinase-dependent, EGFR tyrosine kinase (TK)-independent EGFR internalization induced by ultraviolet light C (UVC) or the cancer therapeutic cisplatin, is followed by diversion from the canonical endocytic pathway. Instead of lysosomal degradation or plasma membrane recycling, EGFR accumulates in a subset of LBPA-rich perinuclear multivesicular bodies (MVBs) distinct from those carrying EGF-stimulated EGFR. Stress-internalized EGFR co-segregates with exogenously expressed pre-melanosomal markers OA1 and fibrillar PMEL, following early endosomal sorting by the actin polymerization-promoting WASH complex. Stress-internalized EGFR is retained intracellularly by continued p38 activity in a mechanism involving ubiquitin-independent, ESCRT/ALIX-dependent incorporation onto intraluminal vesicles (ILVs) of MVBs. In contrast to the internalization-independent EGF-stimulated activation, UVC/cisplatin-triggered EGFR activation depends on EGFR internalization and intracellular retention. EGFR signalling from this MVB subpopulation delays apoptosis and might contribute to chemoresistance. FAU - Tomas, Alejandra AU - Tomas A AD - Department of Cell Biology, UCL Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EL, UK. FAU - Vaughan, Simon O AU - Vaughan SO AD - Department of Cell Biology, UCL Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EL, UK. FAU - Burgoyne, Thomas AU - Burgoyne T AD - Department of Cell Biology, UCL Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EL, UK. FAU - Sorkin, Alexander AU - Sorkin A AD - Department of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261, USA. FAU - Hartley, John A AU - Hartley JA AD - Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, Paul O'Gorman Building, University College London, 72 Huntley Street, London WC1E 6BT, UK. FAU - Hochhauser, Daniel AU - Hochhauser D AD - Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, Paul O'Gorman Building, University College London, 72 Huntley Street, London WC1E 6BT, UK. FAU - Futter, Clare E AU - Futter CE AD - Department of Cell Biology, UCL Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EL, UK. LA - eng GR - 16569/CRUK_/Cancer Research UK/United Kingdom GR - R01 CA089151/CA/NCI NIH HHS/United States GR - C2559/A9994/CRUK_/Cancer Research UK/United Kingdom GR - CA089151/CA/NCI NIH HHS/United States GR - G1001684/MRC_/Medical Research Council/United Kingdom GR - 093445/WT_/Wellcome Trust/United Kingdom PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20150612 PL - England TA - Nat Commun JT - Nature communications JID - 101528555 RN - 0 (DNA-Binding Proteins) RN - 0 (Endosomal Sorting Complexes Required for Transport) RN - 0 (Microfilament Proteins) RN - 0 (Transcription Factors) RN - 0 (Tsg101 protein) RN - 0 (WASH protein, human) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) SB - IM CIN - Cell Cycle. 2015;14(21):3343-4. PMID: 26418166 MH - DNA-Binding Proteins/*metabolism MH - *Endocytosis MH - Endosomal Sorting Complexes Required for Transport/*metabolism MH - ErbB Receptors/*metabolism MH - HeLa Cells MH - Humans MH - Microfilament Proteins/*metabolism MH - Oxidative Stress MH - Protein Transport MH - Signal Transduction MH - Transcription Factors/*metabolism MH - p38 Mitogen-Activated Protein Kinases/metabolism PMC - PMC4490399 EDAT- 2015/06/13 06:00 MHDA- 2016/03/24 06:00 PMCR- 2015/07/03 CRDT- 2015/06/13 06:00 PHST- 2014/10/09 00:00 [received] PHST- 2015/04/27 00:00 [accepted] PHST- 2015/06/13 06:00 [entrez] PHST- 2015/06/13 06:00 [pubmed] PHST- 2016/03/24 06:00 [medline] PHST- 2015/07/03 00:00 [pmc-release] AID - ncomms8324 [pii] AID - 10.1038/ncomms8324 [doi] PST - epublish SO - Nat Commun. 2015 Jun 12;6:7324. doi: 10.1038/ncomms8324.