PMID- 33675119 OWN - NLM STAT- MEDLINE DCOM- 20210921 LR - 20210921 IS - 1582-4934 (Electronic) IS - 1582-1838 (Print) IS - 1582-1838 (Linking) VI - 25 IP - 7 DP - 2021 Apr TI - Hydrogen sulphide reduces hyperhomocysteinaemia-induced endothelial ER stress by sulfhydrating protein disulphide isomerase to attenuate atherosclerosis. PG - 3437-3448 LID - 10.1111/jcmm.16423 [doi] AB - Hyperhomocysteinaemia (HHcy)-impaired endothelial dysfunction including endoplasmic reticulum (ER) stress plays a crucial role in atherogenesis. Hydrogen sulphide (H(2) S), a metabolic production of Hcy and gasotransmitter, exhibits preventing cardiovascular damages induced by HHcy by reducing ER stress, but the underlying mechanism is unclear. Here, we made an atherosclerosis with HHcy mice model by ApoE knockout mice and feeding Pagien diet and drinking L-methionine water. H(2) S donors NaHS and GYY4137 treatment lowered plaque area and ER stress in this model. Protein disulphide isomerase (PDI), a modulation protein folding key enzyme, was up-regulated in plaque and reduced by H(2) S treatment. In cultured human aortic endothelial cells, Hcy dose and time dependently elevated PDI expression, but inhibited its activity, and which were rescued by H(2) S. H(2) S and its endogenous generation key enzyme-cystathionine gamma lyase induced a new post-translational modification-sulfhydration of PDI. Sulfhydrated PDI enhanced its activity, and two cysteine-terminal CXXC domain of PDI was identified by site mutation. HHcy lowered PDI sulfhydration association ER stress, and H(2) S rescued it but this effect was blocked by cysteine site mutation. Conclusively, we demonstrated that H(2) S sulfhydrated PDI and enhanced its activity, reducing HHcy-induced endothelial ER stress to attenuate atherosclerosis development. CI - (c) 2021 The Authors. Journal of Cellular and Molecular Medicine published by Foundation for Cellular and Molecular Medicine and John Wiley & Sons Ltd. FAU - Jiang, Shan AU - Jiang S AD - Institute of Hypoxia Medicine, Wenzhou Medical University, Zhejiang, China. FAU - Xu, Wenjing AU - Xu W AD - Department of Pathology, Xi'an Medical University, Shanxi, China. FAU - Chen, Zhenzhen AU - Chen Z AD - State Key Laboratory of Cardiovascular Disease, Hypertension Center, National Center for Cardiovascular Diseases, Fuwai Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. FAU - Cui, Changting AU - Cui C AD - State Key Laboratory of Cardiovascular Disease, Hypertension Center, National Center for Cardiovascular Diseases, Fuwai Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. FAU - Fan, Xiaofang AU - Fan X AD - Institute of Hypoxia Medicine, Wenzhou Medical University, Zhejiang, China. FAU - Cai, Jun AU - Cai J AD - State Key Laboratory of Cardiovascular Disease, Hypertension Center, National Center for Cardiovascular Diseases, Fuwai Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. FAU - Gong, Yongsheng AU - Gong Y AD - Institute of Hypoxia Medicine, Wenzhou Medical University, Zhejiang, China. FAU - Geng, Bin AU - Geng B AUID- ORCID: 0000-0001-7573-8710 AD - Institute of Hypoxia Medicine, Wenzhou Medical University, Zhejiang, China. AD - State Key Laboratory of Cardiovascular Disease, Hypertension Center, National Center for Cardiovascular Diseases, Fuwai Hospital of Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. LA - eng GR - BJJWZYJH01201910023029/Beijing Outstanding Young Scientist Program/ GR - 2020-12M-1-006/CAMS Innovation Fund for Medical Sciences/ GR - 81670379/National Natural Science Foundation of China/ GR - 81870318/National Natural Science Foundation of China/ GR - 81630014/National Natural Science Foundation of China/ GR - 81825002/National Natural Science Foundation of China/ GR - 81800367/National Natural Science Foundation of China/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210306 PL - England TA - J Cell Mol Med JT - Journal of cellular and molecular medicine JID - 101083777 RN - 0LVT1QZ0BA (Homocysteine) RN - EC 5.3.4.1 (Protein Disulfide-Isomerases) RN - YY9FVM7NSN (Hydrogen Sulfide) SB - IM MH - Animals MH - Atherosclerosis/*metabolism MH - Cell Line MH - Disease Models, Animal MH - Endoplasmic Reticulum Stress/*drug effects MH - Endothelial Cells/*metabolism MH - HEK293 Cells MH - Homocysteine/metabolism MH - Humans MH - Hydrogen Sulfide/*metabolism/*pharmacology MH - Hyperhomocysteinemia/*metabolism MH - Male MH - Mice MH - Mice, Knockout, ApoE MH - Protein Disulfide-Isomerases/chemistry/*metabolism MH - Up-Regulation PMC - PMC8034471 OTO - NOTNLM OT - atherosclerosis OT - endoplasmic reticulum stress OT - homocysteine OT - hydrogen sulphide OT - protein disulphide isomerase OT - sulfhydration COIS- The authors confirm that there are no conflicts of interest. EDAT- 2021/03/07 06:00 MHDA- 2021/09/22 06:00 PMCR- 2021/04/01 CRDT- 2021/03/06 05:45 PHST- 2021/02/16 00:00 [revised] PHST- 2020/05/05 00:00 [received] PHST- 2021/02/18 00:00 [accepted] PHST- 2021/03/07 06:00 [pubmed] PHST- 2021/09/22 06:00 [medline] PHST- 2021/03/06 05:45 [entrez] PHST- 2021/04/01 00:00 [pmc-release] AID - JCMM16423 [pii] AID - 10.1111/jcmm.16423 [doi] PST - ppublish SO - J Cell Mol Med. 2021 Apr;25(7):3437-3448. doi: 10.1111/jcmm.16423. Epub 2021 Mar 6.