PMID- 26022108 OWN - NLM STAT- MEDLINE DCOM- 20160815 LR - 20220129 IS - 1878-0261 (Electronic) IS - 1574-7891 (Print) IS - 1574-7891 (Linking) VI - 9 IP - 8 DP - 2015 Oct TI - Autophagy induction impairs migration and invasion by reversing EMT in glioblastoma cells. PG - 1612-25 LID - S1574-7891(15)00114-3 [pii] LID - 10.1016/j.molonc.2015.04.016 [doi] AB - Cell migration and invasion are highly regulated processes involved in both physiological and pathological conditions. Here we show that autophagy modulation regulates the migration and invasion capabilities of glioblastoma (GBM) cells. We observed that during autophagy occurrence, obtained by nutrient deprivation or by pharmacological inhibition of the mTOR complexes, GBM migration and chemokine-mediated invasion were both impaired. We also observed that SNAIL and SLUG, two master regulators of the epithelial-mesenchymal transition (EMT process), were down-regulated upon autophagy stimulation and, as a consequence, we found a transcriptional and translational up-regulation of N- and R-cadherins. Conversely, in BECLIN 1-silenced GBM cells, an increased migration capability and an up-regulation of SNAIL and SLUG was observed, with a resulting decrease in N- and R-cadherin mRNAs. ATG5 and ATG7 down-regulation also resulted in an increased migration and invasion of GBM cells combined to an up-regulation of the two EMT regulators. Finally, experiments performed in primary GBM cells from patients largely confirmed the results obtained in established cell cultures. Overall, our results indicate that autophagy modulation triggers a molecular switch from a mesenchymal phenotype to an epithelial-like one in GBM cellular models. Since the aggressiveness and lethality of GBM is defined by local invasion and resistance to chemotherapy, we believe that our evidence provides a further rationale for including autophagy/mTOR-based targets in the current therapeutical regimen of GBM patients. CI - Copyright (c) 2015 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved. FAU - Catalano, Myriam AU - Catalano M AD - Istituto Pasteur-Fondazione Cenci Bolognetti and Department of Physiology and Pharmacology, Sapienza University of Rome, Italy; Neuromed IRCCS, Via Atinese, Pozzilli, Italy. FAU - D'Alessandro, Giuseppina AU - D'Alessandro G AD - Istituto Pasteur-Fondazione Cenci Bolognetti and Department of Physiology and Pharmacology, Sapienza University of Rome, Italy; Neuromed IRCCS, Via Atinese, Pozzilli, Italy. FAU - Lepore, Francesca AU - Lepore F AD - Department of Biology, University of Rome Tor Vergata, Rome, Italy. FAU - Corazzari, Marco AU - Corazzari M AD - Department of Biology, University of Rome Tor Vergata, Rome, Italy; IRCCS L. Spallanzani, Rome, Italy. FAU - Caldarola, Sara AU - Caldarola S AD - Department of Biology, University of Rome Tor Vergata, Rome, Italy. FAU - Valacca, Cristina AU - Valacca C AD - Department of Neuroscience, IRCCS Santa Lucia Foundation, Rome, Italy. FAU - Faienza, Fiorella AU - Faienza F AD - Department of Biology, University of Rome Tor Vergata, Rome, Italy. FAU - Esposito, Vincenzo AU - Esposito V AD - Neuromed IRCCS, Via Atinese, Pozzilli, Italy. FAU - Limatola, Cristina AU - Limatola C AD - Istituto Pasteur-Fondazione Cenci Bolognetti and Department of Physiology and Pharmacology, Sapienza University of Rome, Italy; Neuromed IRCCS, Via Atinese, Pozzilli, Italy. FAU - Cecconi, Francesco AU - Cecconi F AD - Department of Biology, University of Rome Tor Vergata, Rome, Italy; Department of Neuroscience, IRCCS Santa Lucia Foundation, Rome, Italy; Unit of Cell Stress and Survival, Danish Cancer Society Research Center, 2100 Copenhagen, Denmark. FAU - Di Bartolomeo, Sabrina AU - Di Bartolomeo S AD - Department of Biology, University of Rome Tor Vergata, Rome, Italy; Department of Neuroscience, IRCCS Santa Lucia Foundation, Rome, Italy. Electronic address: sabrina.dibartolomeo@uniroma2.it. LA - eng GR - GGP10225/TI_/Telethon/Italy PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150513 PL - United States TA - Mol Oncol JT - Molecular oncology JID - 101308230 RN - 0 (1-(4-(4-propionylpiperazin-1-yl)-3-(trifluoromethyl)phenyl)-9-(quinolin-3-yl)benzo(h)(1,6)naphthyridin-2(1H)-one) RN - 0 (Culture Media, Serum-Free) RN - 0 (Leupeptins) RN - 0 (Naphthyridines) RN - 886U3H6UFF (Chloroquine) RN - RF1P63GW3K (benzyloxycarbonylleucyl-leucyl-leucine aldehyde) SB - IM MH - Animals MH - Autophagy/drug effects/*physiology MH - Cell Line, Tumor MH - *Cell Movement/drug effects MH - Chloroquine/pharmacology MH - Culture Media, Serum-Free/pharmacology MH - *Epithelial-Mesenchymal Transition/drug effects MH - Glioblastoma/*pathology MH - Humans MH - Leupeptins/pharmacology MH - Mice MH - Naphthyridines/pharmacology MH - Neoplasm Invasiveness MH - Up-Regulation/drug effects PMC - PMC5528793 OTO - NOTNLM OT - Autophagy OT - Cell migration OT - EMT OT - Glioma EDAT- 2015/05/30 06:00 MHDA- 2016/08/16 06:00 PMCR- 2015/10/01 CRDT- 2015/05/30 06:00 PHST- 2015/04/02 00:00 [received] PHST- 2015/04/29 00:00 [revised] PHST- 2015/04/30 00:00 [accepted] PHST- 2015/05/30 06:00 [entrez] PHST- 2015/05/30 06:00 [pubmed] PHST- 2016/08/16 06:00 [medline] PHST- 2015/10/01 00:00 [pmc-release] AID - S1574-7891(15)00114-3 [pii] AID - MOL22015981612 [pii] AID - 10.1016/j.molonc.2015.04.016 [doi] PST - ppublish SO - Mol Oncol. 2015 Oct;9(8):1612-25. doi: 10.1016/j.molonc.2015.04.016. Epub 2015 May 13.