PMID- 34488433 OWN - NLM STAT- MEDLINE DCOM- 20220119 LR - 20240226 IS - 1524-4563 (Electronic) IS - 0194-911X (Linking) VI - 78 IP - 5 DP - 2021 Nov TI - IL-18 (Interleukin-18) Produced by Renal Tubular Epithelial Cells Promotes Renal Inflammation and Injury During Deoxycorticosterone/Salt-Induced Hypertension in Mice. PG - 1296-1309 LID - 10.1161/HYPERTENSIONAHA.120.16437 [doi] AB - IL-18 (interleukin-18) is elevated in hypertensive patients, but its contribution to high blood pressure and end-organ damage is unknown. We examined the role of IL-18 in the development of renal inflammation and injury in a mouse model of low-renin hypertension. Hypertension was induced in male C57BL6/J (WT) and IL-18-/- mice by uninephrectomy, deoxycorticosterone acetate (2.4 mg/d, s.c.) and 0.9% drinking saline (1K/DOCA/salt). Normotensive controls received uninephrectomy and placebo (1K/placebo). Blood pressure was measured via tail cuff or radiotelemetry. After 21 days, kidneys were harvested for (immuno)histochemical, quantitative-PCR and flow cytometric analyses of fibrosis, inflammation, and immune cell infiltration. 1K/DOCA/salt-treated WT mice developed hypertension, renal fibrosis, upregulation of proinflammatory genes, and accumulation of CD3+ T cells in the kidneys. They also displayed increased expression of IL-18 on tubular epithelial cells. IL-18-/- mice were profoundly protected from hypertension, renal fibrosis, and inflammation. Bone marrow transplantation between WT and IL-18-/- mice revealed that IL-18-deficiency in non-bone marrow-derived cells alone afforded equivalent protection against hypertension and renal injury as global IL-18 deficiency. IL-18 receptor subunits-interleukin-18 receptor 1 and IL-18R accessory protein-were upregulated in kidneys of 1K/DOCA/salt-treated WT mice and localized to T cells and tubular epithelial cells. T cells from kidneys of 1K/DOCA/salt-treated mice produced interferon-gamma upon ex vivo stimulation with IL-18, whereas those from 1K/placebo mice did not. In conclusion, IL-18 production by tubular epithelial cells contributes to elevated blood pressure, renal inflammation, and fibrosis in 1K/DOCA/salt-treated mice, highlighting it as a promising therapeutic target for hypertension and kidney disease. FAU - Thomas, Jordyn M AU - Thomas JM AUID- ORCID: 0000-0001-7544-4077 AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Ling, Yeong H AU - Ling YH AD - Department of Pharmacology, Biomedicine Discovery Institute, Cardiovascular Disease Program, Monash University, Clayton, Australia (Y.H.L., D.M.F., S.M.K., B.K.K.-H.). FAU - Huuskes, Brooke AU - Huuskes B AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Jelinic, Maria AU - Jelinic M AUID- ORCID: 0000-0001-9773-4972 AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Sharma, Prerna AU - Sharma P AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Saini, Narbada AU - Saini N AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Ferens, Dorota M AU - Ferens DM AD - Department of Pharmacology, Biomedicine Discovery Institute, Cardiovascular Disease Program, Monash University, Clayton, Australia (Y.H.L., D.M.F., S.M.K., B.K.K.-H.). FAU - Diep, Henry AU - Diep H AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Krishnan, Shalini M AU - Krishnan SM AD - Department of Pharmacology, Biomedicine Discovery Institute, Cardiovascular Disease Program, Monash University, Clayton, Australia (Y.H.L., D.M.F., S.M.K., B.K.K.-H.). FAU - Kemp-Harper, Barbara K AU - Kemp-Harper BK AD - Department of Pharmacology, Biomedicine Discovery Institute, Cardiovascular Disease Program, Monash University, Clayton, Australia (Y.H.L., D.M.F., S.M.K., B.K.K.-H.). FAU - O'Connor, Paul M AU - O'Connor PM AD - Department of Physiology, Medical College of Georgia, Augusta University (P.M.O.). FAU - Latz, Eicke AU - Latz E AD - Institute of Innate Immunity, University Hospital, University of Bonn, Germany (E.L.). AD - German Center for Neurodegenerative Diseases, Bonn, Germany (E.L.). FAU - Arumugam, Thiruma V AU - Arumugam TV AUID- ORCID: 0000-0002-3377-0939 AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Guzik, Tomasz J AU - Guzik TJ AD - Department of Medicine, Jagiellonian University, Collegium Medicum, Krakow, Poland (T.J.G.). AD - BHF Centre of Research Excellence, Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (T.J.G.). FAU - Hickey, Michael J AU - Hickey MJ AD - Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, Australia (M.J.H.). FAU - Mansell, Ashley AU - Mansell A AD - Hudson Institute of Medical Research, Clayton, Australia (A.M.). FAU - Sobey, Christopher G AU - Sobey CG AUID- ORCID: 0000-0001-6525-9097 AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). AD - Baker Heart and Diabetes Institute, Prahran, Australia (C.G.S., G.R.D.). FAU - Vinh, Antony AU - Vinh A AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). FAU - Drummond, Grant R AU - Drummond GR AD - Centre for Cardiovascular Biology and Disease Research and Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Australia (J.M.T., B.M.H., M.J., P.S., N.S., H.D., T.V.A., C.G.S., A.V., G.R.D.). AD - Baker Heart and Diabetes Institute, Prahran, Australia (C.G.S., G.R.D.). LA - eng GR - R21 AI150723/AI/NIAID NIH HHS/United States GR - P01 HL134604/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20210907 PL - United States TA - Hypertension JT - Hypertension (Dallas, Tex. : 1979) JID - 7906255 RN - 0 (Interleukin-18) RN - 6E0A168OB8 (Desoxycorticosterone Acetate) SB - IM MH - Albuminuria/chemically induced/genetics/metabolism MH - Animals MH - Blood Pressure/genetics/physiology MH - Desoxycorticosterone Acetate MH - Epithelial Cells/*metabolism MH - Hypertension/chemically induced/genetics/*physiopathology MH - Inflammation/genetics/*metabolism MH - Interleukin-18/genetics/*metabolism MH - Kidney/metabolism/pathology MH - Kidney Diseases/genetics/*metabolism MH - Kidney Tubules/cytology MH - Male MH - Mice, Inbred C57BL MH - Mice, Knockout MH - T-Lymphocytes/immunology/metabolism MH - Mice OTO - NOTNLM OT - blood pressure OT - fibrosis OT - hypertension OT - inflammation OT - interleukin-18 EDAT- 2021/09/08 06:00 MHDA- 2022/01/20 06:00 CRDT- 2021/09/07 05:44 PHST- 2021/09/08 06:00 [pubmed] PHST- 2022/01/20 06:00 [medline] PHST- 2021/09/07 05:44 [entrez] AID - 10.1161/HYPERTENSIONAHA.120.16437 [doi] PST - ppublish SO - Hypertension. 2021 Nov;78(5):1296-1309. doi: 10.1161/HYPERTENSIONAHA.120.16437. Epub 2021 Sep 7.