PMID- 23584676 OWN - NLM STAT- MEDLINE DCOM- 20130715 LR - 20230815 IS - 1552-4469 (Electronic) IS - 1552-4450 (Print) IS - 1552-4450 (Linking) VI - 9 IP - 6 DP - 2013 Jun TI - Chemical modulation of chaperone-mediated autophagy by retinoic acid derivatives. PG - 374-82 LID - 10.1038/nchembio.1230 [doi] AB - Chaperone-mediated autophagy (CMA) contributes to cellular quality control and the cellular response to stress through the selective degradation of cytosolic proteins in lysosomes. A decrease in CMA activity occurs in aging and in age-related disorders (for example, neurodegenerative diseases and diabetes). Although prevention of this age-dependent decline through genetic manipulation in mice has proven beneficial, chemical modulation of CMA is not currently possible, owing in part to the lack of information on the signaling mechanisms that modulate this pathway. In this work, we report that signaling through retinoic acid receptor alpha (RARalpha) inhibits CMA and apply structure-based chemical design to develop synthetic derivatives of all-trans-retinoic acid to specifically neutralize this inhibitory effect. We demonstrate that chemical enhancement of CMA protects cells from oxidative stress and from proteotoxicity, supporting a potential therapeutic opportunity when reduced CMA contributes to cellular dysfunction and disease. FAU - Anguiano, Jaime AU - Anguiano J AD - Department of Development and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York, USA. FAU - Garner, Thomas P AU - Garner TP FAU - Mahalingam, Murugesan AU - Mahalingam M FAU - Das, Bhaskar C AU - Das BC FAU - Gavathiotis, Evripidis AU - Gavathiotis E FAU - Cuervo, Ana Maria AU - Cuervo AM LA - eng SI - PubChem-Substance/162010013 SI - PubChem-Substance/162010014 SI - PubChem-Substance/162010015 SI - PubChem-Substance/162010016 SI - PubChem-Substance/162010017 SI - PubChem-Substance/162010018 SI - PubChem-Substance/162010019 SI - PubChem-Substance/162010020 SI - PubChem-Substance/162010021 GR - R00 HL095929/HL/NHLBI NIH HHS/United States GR - R01 AG021904/AG/NIA NIH HHS/United States GR - AG031782/AG/NIA NIH HHS/United States GR - R37 AG021904/AG/NIA NIH HHS/United States GR - AA020630/AA/NIAAA NIH HHS/United States GR - HL095929/HL/NHLBI NIH HHS/United States GR - R21 AA020630/AA/NIAAA NIH HHS/United States GR - K99 HL095929/HL/NHLBI NIH HHS/United States GR - P01 AG031782/AG/NIA NIH HHS/United States GR - AG021904/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20130414 PL - United States TA - Nat Chem Biol JT - Nature chemical biology JID - 101231976 RN - 0 (Molecular Chaperones) RN - 0 (Rara protein, mouse) RN - 0 (Receptors, Retinoic Acid) RN - 0 (Retinoic Acid Receptor alpha) RN - 5688UTC01R (Tretinoin) RN - 9007-49-2 (DNA) RN - S88TT14065 (Oxygen) SB - IM EIN - Nat Chem Biol. 2013 Nov;9(11):746 MH - Animals MH - *Autophagy MH - Binding Sites MH - Cytosol/metabolism MH - DNA/chemistry MH - Lysosomes/metabolism MH - Mice MH - Molecular Chaperones/*chemistry MH - Molecular Conformation MH - Molecular Dynamics Simulation MH - NIH 3T3 Cells MH - Oxygen/metabolism MH - Receptors, Retinoic Acid/metabolism MH - Retinoic Acid Receptor alpha MH - Tretinoin/*chemistry PMC - PMC3661710 MID - NIHMS454928 COIS- Competing financial interests The authors declare that they have no competing interests. EDAT- 2013/04/16 06:00 MHDA- 2013/07/17 06:00 PMCR- 2013/12/01 CRDT- 2013/04/16 06:00 PHST- 2013/01/12 00:00 [received] PHST- 2013/03/11 00:00 [accepted] PHST- 2013/04/16 06:00 [entrez] PHST- 2013/04/16 06:00 [pubmed] PHST- 2013/07/17 06:00 [medline] PHST- 2013/12/01 00:00 [pmc-release] AID - nchembio.1230 [pii] AID - 10.1038/nchembio.1230 [doi] PST - ppublish SO - Nat Chem Biol. 2013 Jun;9(6):374-82. doi: 10.1038/nchembio.1230. Epub 2013 Apr 14.