@article{ecfabd0b8b874583af4abc4729327a32,
title = "Cellular senescence drives age-dependent hepatic steatosis",
abstract = "The incidence of non-alcoholic fatty liver disease (NAFLD) increases with age. Cellular senescence refers to a state of irreversible cell-cycle arrest combined with the secretion of proinflammatory cytokines and mitochondrial dysfunction. Senescent cells contribute to age-related tissue degeneration. Here we show that the accumulation of senescent cells promotes hepatic fat accumulation and steatosis. We report a close correlation between hepatic fat accumulation and markers of hepatocyte senescence. The elimination of senescent cells by suicide gene-meditated ablation of p16Ink4a-expressing senescent cells in INK-ATTAC mice or by treatment with a combination of the senolytic drugs dasatinib and quercetin (D+Q) reduces overall hepatic steatosis. Conversely, inducing hepatocyte senescence promotes fat accumulation in vitro and in vivo. Mechanistically, we show that mitochondria in senescent cells lose the ability to metabolize fatty acids efficiently. Our study demonstrates that cellular senescence drives hepatic steatosis and elimination of senescent cells may be a novel therapeutic strategy to reduce steatosis.",
author = "Mikolaj Ogrodnik and Satomi Miwa and Tamar Tchkonia and Dina Tiniakos and Wilson, {Caroline L.} and Albert Lahat and Day, {Christoper P.} and Alastair Burt and Allyson Palmer and Anstee, {Quentin M.} and Grellscheid, {Sushma Nagaraja} and Hoeijmakers, {Jan H.J.} and Sander Barnhoorn and Mann, {Derek A.} and Bird, {Thomas G.} and Vermeij, {Wilbert P.} and Kirkland, {James L.} and Passos, {Jo{\~a}o F.} and {Von Zglinicki}, Thomas and Diana Jurk",
note = "Funding Information: D.J. is funded by a Newcastle University Faculty of Medical Sciences Fellowship. C.P.D. is supported by the the National Institute for Health Research. J.F.P. is funded by a David Phillips BBSRC fellowship BB/H022384/1 and BBSRC grant BB/K017314/1. T.T., A.P. and J.L.K. were supported by NIH grant R37 AG013925 (J.L.K.), the Connor Group and the Noaber Foundation. D.A.M. is funded by Centre for Ageing & Vitality MR/M501700, MK/K001949/1 and MRC G0700890. T.G.B. is funded by a Wellcome Trust Intermediate Clinical Fellowship (WT107492). The study was supported by BBSRC (grants BB/C008200/1 and BB/I020748/1 to T.v.Z.) and grants from NUIA (D.J.) and the Newcastle Biomedical Research Centre (T.v.Z.). Financial support for J.H.J.H. was obtained from the National Institute of Health (NIH)/National Institute of Ageing (NIA) (PO1 AG017242), European Research Council Advanced Grant DamAge and Proof of Concept Grant Dementia, the KWO Dutch Cancer Society (5030), SFB628 and the Royal Academy of Arts and Sciences of the Netherlands (academia professorship to J.H.J.H.). We thank Dr Kerry Cameron for support with the mouse experiments, Professor Fiona Oakley for helpful comments and the Histology Services at the CRUK Beatson Institute for assistance with p21 immunohistochemistry. Publisher Copyright: {\textcopyright} The Author(s) 2017.",
year = "2017",
month = jun,
day = "13",
doi = "10.1038/ncomms15691",
language = "English (US)",
volume = "8",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
}