PMID- 24366666 OWN - NLM STAT- MEDLINE DCOM- 20140401 LR - 20231213 IS - 1521-0111 (Electronic) IS - 0026-895X (Print) IS - 0026-895X (Linking) VI - 85 IP - 3 DP - 2014 Mar TI - cdc-like/dual-specificity tyrosine phosphorylation-regulated kinases inhibitor leucettine L41 induces mTOR-dependent autophagy: implication for Alzheimer's disease. PG - 441-50 LID - 10.1124/mol.113.090837 [doi] AB - Leucettines, a family of pharmacological inhibitors of dual-specificity tyrosine phosphorylation regulated kinases and cdc-like kinases (CLKs), are currently under investigation for their potential therapeutic application to Down syndrome and Alzheimer's disease. We here report that leucettine L41 triggers bona fide autophagy in osteosarcoma U-2 OS cells and immortalized mouse hippocampal HT22 cells, characterized by microtubule-associated protein light chain 3 membrane translocation and foci formation. Leucettine L41-triggered autophagy requires the Unc-51-like kinase and is sensitive to the phosphatidylinositol 3-kinase (PI3K) inhibitors wortmannin and 3-methyladenine, suggesting that it acts through the mammalian target of rapamycin (mTOR)/PI3K-dependent pathway. Leucettine L41 does not act by modifying the autophagic flux of vesicles. Leucettine L41-induced autophagy correlates best with inhibition of CLKs. Leucettine L41 modestly inhibited phosphatidylinositol-3-phosphate 5-kinase, FYVE domain-containing activity as tested both in vitro and in vivo, which may also contribute to autophagy induction. Altogether these results demonstrate that leucettines can activate the autophagic mTOR/PI3K pathway, a characteristic that may turn advantageous in the context of Alzheimer's disease treatment. FAU - Fant, Xavier AU - Fant X AD - Centre National de la Recherche Scientifique (CNRS), USR3151, "Protein Phosphorylation and Human Disease," Station Biologique, Roscoff cedex, France (X.F., E.D.); Institut National de la Sante et de la Recherche Medicale/Universite Paul Sabatier Unite Mixte de Recherche (UMR) 1048, "Production et fonctions plaquettaires: signalisation et phosphoinositides" group, Institut des Maladies Metaboliques et Cardiovasculaires (I2MC), Toulouse cedex, France (G.C., B.P.); Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan (D.S., A.S.); Laboratoire Sciences Chimiques de Rennes, UMR CNRS 6226, Groupe Ingenierie Chimique et Molecules pour le Vivant (ICMV), Universite de Rennes, Campus de Beaulieu, Rennes cedex, France (E.L., F.C., J.-P.B.); and ManRos Therapeutics, Perharidy Research Center, Roscoff, Bretagne, France (L.M.). FAU - Durieu, Emilie AU - Durieu E FAU - Chicanne, Gaetan AU - Chicanne G FAU - Payrastre, Bernard AU - Payrastre B FAU - Sbrissa, Diego AU - Sbrissa D FAU - Shisheva, Assia AU - Shisheva A FAU - Limanton, Emmanuelle AU - Limanton E FAU - Carreaux, Francois AU - Carreaux F FAU - Bazureau, Jean-Pierre AU - Bazureau JP FAU - Meijer, Laurent AU - Meijer L LA - eng GR - R01 DK058058/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131223 PL - United States TA - Mol Pharmacol JT - Molecular pharmacology JID - 0035623 RN - 0 (((5Z)5-(1,3-benzodioxol-5-yl)methylene-2-phenylamino-3,5-dihydro-4H-imidazol-4-one)) RN - 0 (Dioxoles) RN - 0 (Enzyme Inhibitors) RN - 0 (Imidazoles) RN - 0 (Microtubule-Associated Proteins) RN - 0 (Phosphoinositide-3 Kinase Inhibitors) RN - 42HK56048U (Tyrosine) RN - EC 2.7.10.1 (Protein-Tyrosine Kinases) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Alzheimer Disease/*drug therapy/genetics/metabolism MH - Animals MH - Autophagy/*drug effects/genetics/immunology MH - Cell Line MH - Cell Line, Tumor MH - Dioxoles/*pharmacology MH - Enzyme Inhibitors/*pharmacology MH - Humans MH - Imidazoles/*pharmacology MH - Mice MH - Microtubule-Associated Proteins/genetics/metabolism MH - Osteosarcoma/drug therapy/genetics/metabolism MH - Phosphatidylinositol 3-Kinases/genetics/metabolism MH - Phosphoinositide-3 Kinase Inhibitors MH - Phosphorylation/*drug effects/genetics/immunology MH - Protein Serine-Threonine Kinases/genetics/metabolism MH - Protein-Tyrosine Kinases/genetics/metabolism MH - TOR Serine-Threonine Kinases/genetics/*metabolism MH - Tyrosine/genetics/*metabolism MH - Dyrk Kinases PMC - PMC6067634 EDAT- 2013/12/25 06:00 MHDA- 2014/04/02 06:00 PMCR- 2014/03/01 CRDT- 2013/12/25 06:00 PHST- 2013/12/25 06:00 [entrez] PHST- 2013/12/25 06:00 [pubmed] PHST- 2014/04/02 06:00 [medline] PHST- 2014/03/01 00:00 [pmc-release] AID - mol.113.090837 [pii] AID - MOL_090837 [pii] AID - 10.1124/mol.113.090837 [doi] PST - ppublish SO - Mol Pharmacol. 2014 Mar;85(3):441-50. doi: 10.1124/mol.113.090837. Epub 2013 Dec 23.