PMID- 31727601 OWN - NLM STAT- MEDLINE DCOM- 20200430 LR - 20210110 IS - 2352-3964 (Electronic) IS - 2352-3964 (Linking) VI - 50 DP - 2019 Dec TI - Small molecule modulator of aggrephagy regulates neuroinflammation to curb pathogenesis of neurodegeneration. PG - 260-273 LID - S2352-3964(19)30706-6 [pii] LID - 10.1016/j.ebiom.2019.10.036 [doi] AB - BACKGROUND: Plethora of efforts fails to yield a single drug to reverse the pathogenesis of Parkinson's disease (PD) and related alpha-synucleopathies. METHODS: Using chemical biology, we identified a small molecule inhibitor of c-abl kinase, PD180970 that could potentially clear the toxic protein aggregates. Genetic, molecular, cell biological and immunological assays were performed to understand the mechanism of action. In vivo preclinical disease model of PD was used to assess its neuroprotection efficacy. FINDINGS: In this report, we show the ability of a small molecule inhibitor of tyrosine kinases, PD180970, to induce autophagy (cell lines and mice midbrain) in an mTOR-independent manner and ameliorate the alpha-synuclein mediated toxicity. PD180970 also exerts anti-neuroinflammatory potential by inhibiting the release of proinflammatory cytokines such as IL-6 (interleukin-6) and MCP-1 (monocyte chemoattractant protein-1) through reduction of TLR-4 (toll like receptor-4) mediated NF-kappaB (nuclear factor kappa-light-chain-enhancer of activated B cells) activation. In vivo studies show that PD180970 is neuroprotective by degrading the toxic protein oligomers through induction of autophagy and subsiding the microglial activation. INTERPRETATION: These protective mechanisms ensure the negation of Parkinson's disease related motor impairments. FUND: This work was supported by Wellcome Trust/DBT India Alliance Intermediate Fellowship (500159-Z-09-Z), DST-SERB grant (EMR/2015/001946), DBT (BT/INF/22/SP27679/2018) and JNCASR intramural funds to RM, and SERB, DST (SR/SO/HS/0121/2012) to PAA, and DST-SERB (SB/YS/LS-215/2013) to JPC and BIRAC funding to ETA C-CAMP. CI - Copyright (c) 2019 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Sn, Suresh AU - Sn S AD - Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India; Centre for Brain Research (CBR), IISc, Bangalore, India. FAU - Pandurangi, Janhavi AU - Pandurangi J AD - Centre for Cellular and Molecular Platforms (C-CAMP), Bangalore Life Sciences Cluster (BLiSC), Tata Institute of Fundamental Research, Bangalore, India. FAU - Murumalla, Ravi AU - Murumalla R AD - Centre for Cellular and Molecular Platforms (C-CAMP), Bangalore Life Sciences Cluster (BLiSC), Tata Institute of Fundamental Research, Bangalore, India. FAU - Dj, Vidyadhara AU - Dj V AD - Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India; Yale University, USA. FAU - Garimella, Lakshmi AU - Garimella L AD - Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India. FAU - Acharya, Achyuth AU - Acharya A AD - Centre for Cellular and Molecular Platforms (C-CAMP), Bangalore Life Sciences Cluster (BLiSC), Tata Institute of Fundamental Research, Bangalore, India. FAU - Rai, Shashank AU - Rai S AD - Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India; MRC Laboratory of Molecular Biology, Cambridge, UK. FAU - Paul, Abhik AU - Paul A AD - Neuroscience Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India. FAU - Yarreiphang, Haorei AU - Yarreiphang H AD - Department of Neurophysiology, National Institute of Mental Health and Neuro Sciences, Bangalore, India. FAU - Pillai, Malini S AU - Pillai MS AD - Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India. FAU - Giridharan, Mridhula AU - Giridharan M AD - Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India. FAU - Clement, James P AU - Clement JP AD - Neuroscience Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India. FAU - Alladi, Phalguni Anand AU - Alladi PA AD - Department of Neurophysiology, National Institute of Mental Health and Neuro Sciences, Bangalore, India. FAU - Saiyed, Taslimarif AU - Saiyed T AD - Centre for Cellular and Molecular Platforms (C-CAMP), Bangalore Life Sciences Cluster (BLiSC), Tata Institute of Fundamental Research, Bangalore, India. FAU - Manjithaya, Ravi AU - Manjithaya R AD - Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India; Neuroscience Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore, India. Electronic address: ravim@jncasr.ac.in. LA - eng PT - Journal Article DEP - 20191111 PL - Netherlands TA - EBioMedicine JT - EBioMedicine JID - 101647039 RN - 0 (Biomarkers) RN - 0 (Cytokines) RN - 0 (Interleukin-6) RN - 0 (Lipopolysaccharides) RN - 0 (Neuroprotective Agents) RN - 0 (Protein Aggregates) RN - 0 (Pyridones) RN - 0 (Pyrimidines) RN - 0 (alpha-Synuclein) RN - TSO2IAD7WJ (PD 180970) SB - IM MH - Animals MH - Biomarkers MH - Cell Line MH - Cytokines/metabolism MH - Disease Models, Animal MH - Humans MH - Immunohistochemistry MH - Interleukin-6/metabolism MH - Lipopolysaccharides/metabolism MH - Macroautophagy MH - Male MH - Mice MH - Microglia/drug effects/metabolism MH - Neurodegenerative Diseases/drug therapy/*etiology/*metabolism/physiopathology MH - Neurons/metabolism MH - Neuroprotective Agents/*pharmacology/therapeutic use MH - Oxidative Stress MH - Protein Aggregates/drug effects MH - Protein Aggregation, Pathological/drug therapy/*metabolism MH - Pyridones/pharmacology/therapeutic use MH - Pyrimidines/pharmacology/therapeutic use MH - alpha-Synuclein/metabolism PMC - PMC6921191 EDAT- 2019/11/16 06:00 MHDA- 2020/05/01 06:00 PMCR- 2019/11/11 CRDT- 2019/11/16 06:00 PHST- 2019/02/16 00:00 [received] PHST- 2019/10/13 00:00 [revised] PHST- 2019/10/20 00:00 [accepted] PHST- 2019/11/16 06:00 [pubmed] PHST- 2020/05/01 06:00 [medline] PHST- 2019/11/16 06:00 [entrez] PHST- 2019/11/11 00:00 [pmc-release] AID - S2352-3964(19)30706-6 [pii] AID - 10.1016/j.ebiom.2019.10.036 [doi] PST - ppublish SO - EBioMedicine. 2019 Dec;50:260-273. doi: 10.1016/j.ebiom.2019.10.036. Epub 2019 Nov 11.