PMID- 32949996 OWN - NLM STAT- MEDLINE DCOM- 20210719 LR - 20211204 IS - 2352-3964 (Electronic) IS - 2352-3964 (Linking) VI - 60 DP - 2020 Oct TI - Autophagy induction promotes renal cyst growth in polycystic kidney disease. PG - 102986 LID - S2352-3964(20)30362-5 [pii] LID - 10.1016/j.ebiom.2020.102986 [doi] LID - 102986 AB - BACKGROUND: Polycystic kidney disease (PKD) involves renal cysts arising from proliferating tubular cells. Autophagy has been recently suggested as a potential therapeutic target in PKD, and mammalian target of rapamycin (mTOR) is a key negative regulator of autophagy. However, the effect of autophagy regulation on cystogenesis has not been elucidated in PKD mice. METHODS: Clinical validation was performed using GEO datasets and autosomal dominant polycystic kidney disease (ADPKD) patient samples. Newly established PKD and LC3 transgenic mice were used for in vivo verifications, and additional tests were performed in vitro and in vivo using multiple autophagy drugs. FINDINGS: Neither autophagy stimulation nor LC3 overexpression alleviated PKD. Furthermore, we observed the inhibitory effect of an autophagy inhibitor on cysts, indicating its possible therapeutic use in a specific group of patients with ADPKD. INTERPRETATION: Our findings provide a novel insight into the pathogenesis related to autophagy in PKD, suggesting that drugs related to autophagy regulation should be considered with caution for treating PKD. FUNDING SOURCES: This work was supported by grants from the Bio & Medical Technology Development Program; the Collaborative Genome Program for Fostering New Post-Genome Industry of the NRF; the Basic Science Program. CI - Copyright (c) 2020 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Lee, Eun Ji AU - Lee EJ AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. FAU - Ko, Je Yeong AU - Ko JY AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. FAU - Oh, Sumin AU - Oh S AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. FAU - Jun, Jaehee AU - Jun J AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. FAU - Mun, Hyowon AU - Mun H AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. FAU - Lim, Chae Ji AU - Lim CJ AD - Department of Biology, Ewha Womans University, Seoul 03760, Republic of Korea. FAU - Seo, Seungwoon AU - Seo S AD - Department of Biology, Ewha Womans University, Seoul 03760, Republic of Korea. FAU - Ko, Hyuk Wan AU - Ko HW AD - Department of Biochemistry, Yonsei University, Seoul 03722, Republic of Korea. FAU - Kim, Hyunho AU - Kim H AD - Center for Medical Innovation, Biomedical Research Institute, Seoul National University Hospital, Seoul 03082, Republic of Korea. FAU - Oh, Yun Kyu AU - Oh YK AD - Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul 07061, Republic of Korea. FAU - Ahn, Curie AU - Ahn C AD - Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea. FAU - Kang, Minyong AU - Kang M AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea. FAU - Kim, Min Jung AU - Kim MJ AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. FAU - Yoo, Kyung Hyun AU - Yoo KH AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. FAU - Oh, Goo Taeg AU - Oh GT AD - Department of Biology, Ewha Womans University, Seoul 03760, Republic of Korea. Electronic address: gootaeg@ewha.ac.kr. FAU - Park, Jong Hoon AU - Park JH AD - Department of Biological Science, Sookmyung Women's University, Seoul 04310, Republic of Korea. Electronic address: parkjh@sookmyung.ac.kr. LA - eng PT - Journal Article DEP - 20200916 PL - Netherlands TA - EBioMedicine JT - EBioMedicine JID - 101647039 RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) SB - IM MH - Animals MH - *Autophagy/genetics MH - Cell Line MH - Computational Biology MH - Cysts/*pathology MH - Disease Models, Animal MH - Disease Susceptibility MH - Extracellular Signal-Regulated MAP Kinases/metabolism MH - Gene Expression Profiling MH - Genetic Predisposition to Disease MH - Humans MH - Mice MH - Mice, Transgenic MH - Phosphorylation MH - Polycystic Kidney Diseases/*etiology/metabolism/*pathology MH - Signal Transduction MH - TOR Serine-Threonine Kinases/metabolism MH - Zebrafish PMC - PMC7501056 OTO - NOTNLM OT - Autophagy OT - Ift46 OT - PKD OT - Polycystic kidney COIS- Declaration of Competing Interest J.H. Park, G.T. Oh and J.Y. Ko have filed a patent in South Korea for the establishment of the Ift46-deleted model (patent number: 10-1618124). The others have nothing to disclose. EDAT- 2020/09/20 06:00 MHDA- 2021/07/20 06:00 PMCR- 2020/09/16 CRDT- 2020/09/19 20:19 PHST- 2020/07/18 00:00 [received] PHST- 2020/08/14 00:00 [revised] PHST- 2020/08/19 00:00 [accepted] PHST- 2020/09/20 06:00 [pubmed] PHST- 2021/07/20 06:00 [medline] PHST- 2020/09/19 20:19 [entrez] PHST- 2020/09/16 00:00 [pmc-release] AID - S2352-3964(20)30362-5 [pii] AID - 102986 [pii] AID - 10.1016/j.ebiom.2020.102986 [doi] PST - ppublish SO - EBioMedicine. 2020 Oct;60:102986. doi: 10.1016/j.ebiom.2020.102986. Epub 2020 Sep 16.