PMID- 35737739 OWN - NLM STAT- MEDLINE DCOM- 20230126 LR - 20230701 IS - 1554-8635 (Electronic) IS - 1554-8627 (Print) IS - 1554-8627 (Linking) VI - 19 IP - 2 DP - 2023 Feb TI - Modulation of Atg genes expression in aged rat liver, brain, and kidney by caloric restriction analyzed via single-nucleus/cell RNA sequencing. PG - 706-715 LID - 10.1080/15548627.2022.2091903 [doi] AB - Dysregulation of macroautophagy/autophagy has been closely implicated in aging. Caloric restriction (CR) is an effective intervention of aging partially via activation of autophagy. Recently, a high-throughput single-cell RNA-seq technique has been employed to detect the comprehensive transcriptomes of individual cells. However, the transcriptional networks of ATG (autophagy related) genes in the aging process and the modulation of ATG genes expression by CR at the single-cell level have not been elucidated. Here, by performing data analysis of single nucleus/cells RNA sequencing in rats undergoing aging and the modulation by CR, we demonstrate that the transcription patterns of Atg genes in different cell types of rat liver, brain, and kidney are highly heterogeneous. Importantly, CR reversed aging-induced changes of multiple Atg genes across different cell types in the brain, liver, and kidney. In summary, our results, for the first time, provide comprehensive information on Atg gene expression in specific cell types of different organs in a mammal during aging and give novel insight into the protective role of autophagy and CR in aging at the single-cell resolution.Abbreviations: ATG genes: autophagy-related genes; Atg5: autophagy related 5; Atg7: autophagy related 7; CR: caloric restriction; DEATG: differentially expressed autophagy-related; NAFLD: nonalcoholic fatty liver disease; ScRNA-seq: single-cell RNA sequencing. FAU - Yang, Chuanbin AU - Yang C AUID- ORCID: 0000-0001-8288-4038 AD - Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University; the First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, Guangdong, China. FAU - Xia, Siyu AU - Xia S AD - Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University; the First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, Guangdong, China. AD - Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, Guangdong, China. FAU - Zhang, Wei AU - Zhang W AD - Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University; the First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, Guangdong, China. AD - Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, Guangdong, China. FAU - Shen, Han-Ming AU - Shen HM AUID- ORCID: 0000-0001-7369-5227 AD - Faculty of Health Sciences, University of Macau, Taipa, Macau, China. FAU - Wang, Jigang AU - Wang J AUID- ORCID: 0000-0002-0575-0105 AD - Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College of Jinan University; the First Affiliated Hospital of Southern University of Science and Technology), Shenzhen, Guangdong, China. AD - Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, Beijing, China China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220623 PL - United States TA - Autophagy JT - Autophagy JID - 101265188 SB - IM MH - Animals MH - Rats MH - Aging/genetics/metabolism MH - Autophagy/physiology MH - Brain/metabolism MH - *Caloric Restriction MH - Kidney/metabolism MH - Mammals/genetics MH - *Non-alcoholic Fatty Liver Disease MH - Sequence Analysis, RNA MH - Cell Nucleus/genetics/metabolism PMC - PMC9851201 OTO - NOTNLM OT - ATGs OT - Aging OT - autophagy OT - brain OT - caloric restriction (CR) OT - kidney OT - liver OT - longevity OT - single-cell RNA sequencing COIS- No potential conflict of interest to declare by the authors. EDAT- 2022/06/24 06:00 MHDA- 2023/01/20 06:00 PMCR- 2023/06/23 CRDT- 2022/06/23 13:54 PHST- 2022/06/24 06:00 [pubmed] PHST- 2023/01/20 06:00 [medline] PHST- 2022/06/23 13:54 [entrez] PHST- 2023/06/23 00:00 [pmc-release] AID - 2091903 [pii] AID - 10.1080/15548627.2022.2091903 [doi] PST - ppublish SO - Autophagy. 2023 Feb;19(2):706-715. doi: 10.1080/15548627.2022.2091903. Epub 2022 Jun 23.