PMID- 36421426 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221126 IS - 2076-3921 (Print) IS - 2076-3921 (Electronic) IS - 2076-3921 (Linking) VI - 11 IP - 11 DP - 2022 Nov 14 TI - Citronellal Attenuates Oxidative Stress-Induced Mitochondrial Damage through TRPM2/NHE1 Pathway and Effectively Inhibits Endothelial Dysfunction in Type 2 Diabetes Mellitus. LID - 10.3390/antiox11112241 [doi] LID - 2241 AB - In type 2 diabetes mellitus (T2DM), oxidative stress induces endothelial dysfunction (ED), which is closely related to the formation of atherosclerosis. However, there are few effective drugs to prevent and cure it. Citronellal (CT) is an aromatic active substance extracted from citronella plants. Recently, CT has been shown to prevent ED, but the underlying mechanism remains unclear. The purpose of this study was to investigate whether CT ameliorated T2DM-induced ED by inhibiting the TRPM2/NHE1 signal pathway. Transient receptor potential channel M2 (TRPM2) is a Ca(2+)-permeable cation channel activated by oxidative stress, which damages endothelial cell barrier function and further leads to ED or atherosclerosis in T2DM. The Na(+)/H(+) exchanger 1 (NHE1), a transmembrane protein, also plays an important role in ED. Whether TRPM2 and NHE1 are involved in the mechanism of CT improving ED in T2DM still needs further study. Through the evaluations of ophthalmoscope, HE and Oil red staining, vascular function, oxidative stress level, and mitochondrial membrane potential evaluation, we observed that CT not only reduced the formation of lipid deposition but also inhibited ED and suppressed oxidative stress-induced mitochondrial damage in vasculature of T2DM rats. The expressions of NHE1 and TRPM2 was up-regulated in the carotid vessels of T2DM rats; NHE1 expression was also upregulated in endothelial cells with overexpression of TRPM2, but CT reversed the up-regulation of NHE1 in vivo and in vitro. In contrast, CT had no inhibitory effect on the expression of NHE1 in TRPM2 knockout mice. Our study show that CT suppressed the expression of NHE1 and TPRM2, alleviated oxidative stress-induced mitochondrial damage, and imposed a protective effect on ED in T2DM rats. FAU - Yin, Ya-Ling AU - Yin YL AD - Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China. AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Wang, Huan-Huan AU - Wang HH AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Gui, Zi-Chen AU - Gui ZC AD - Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. FAU - Mi, Shan AU - Mi S AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Guo, Shuang AU - Guo S AD - Hubei Key Laboratory of Diabetes and Angiopathy, Hubei University of Science and Technology, Xianning 437100, China. FAU - Wang, Yue AU - Wang Y AD - Sanquan College, Xinxiang Medical University, Xinxiang 453003, China. FAU - Wang, Qian-Qian AU - Wang QQ AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Yue, Rui-Zhu AU - Yue RZ AD - Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China. FAU - Lin, Lai-Biao AU - Lin LB AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Fan, Jia-Xin AU - Fan JX AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Zhang, Xue AU - Zhang X AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Mao, Bing-Yan AU - Mao BY AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Liu, Tian-Heng AU - Liu TH AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Wan, Guang-Rui AU - Wan GR AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Zhan, He-Qin AU - Zhan HQ AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Zhu, Mo-Li AU - Zhu ML AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. FAU - Jiang, Lin-Hua AU - Jiang LH AUID- ORCID: 0000-0001-6398-0411 AD - Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China. AD - School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK. FAU - Li, Peng AU - Li P AUID- ORCID: 0000-0003-2030-1807 AD - Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China. AD - Henan International Joint Laboratory of Cardiovascular Remodeling and Drug Intervention, Xinxiang Key Laboratory of Vascular Remodeling Intervention and Molecular Targeted Therapy Drug Development, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China. AD - Hubei Key Laboratory of Diabetes and Angiopathy, Hubei University of Science and Technology, Xianning 437100, China. LA - eng GR - G2022026006L/National High-End Foreign Expert Recruitment Plan of China/ GR - 82271460, U1804197, 81874312/National Natural Science Foundation of China/ GR - 202300410308, HNGD2022067/Research Foundation of Henan Province/ GR - XYBSKYZZ505319, XYBSKYZZ201626, XYBSKYZZ202202, XYBSKYZZ201907, 2021006ZK, ZD2020006/Research Foundation of Xinxiang Medical University/ PT - Journal Article DEP - 20221114 PL - Switzerland TA - Antioxidants (Basel) JT - Antioxidants (Basel, Switzerland) JID - 101668981 PMC - PMC9686689 OTO - NOTNLM OT - NHE1 OT - T2DM OT - TRPM2 OT - citronellal OT - endothelial dysfunction COIS- The authors declare no conflict of interest. EDAT- 2022/11/25 06:00 MHDA- 2022/11/25 06:01 PMCR- 2022/11/14 CRDT- 2022/11/24 09:55 PHST- 2022/11/01 00:00 [received] PHST- 2022/11/08 00:00 [accepted] PHST- 2022/11/24 09:55 [entrez] PHST- 2022/11/25 06:00 [pubmed] PHST- 2022/11/25 06:01 [medline] PHST- 2022/11/14 00:00 [pmc-release] AID - antiox11112241 [pii] AID - antioxidants-11-02241 [pii] AID - 10.3390/antiox11112241 [doi] PST - epublish SO - Antioxidants (Basel). 2022 Nov 14;11(11):2241. doi: 10.3390/antiox11112241.