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Lin, Ye, Yang, Xin, Li, Yan, Huang, De-jian, Sun, Zhi-qin. (1403). A newly synthesized flavone avoids COMT-catalyzed methylation and mitigates myocardial ischemia/reperfusion injury in H9C2 cells via JNK and P38 pathways. , 27(4), 492-499. doi: 10.22038/ijbms.2023.74358.16149
Ye Lin; Xin Yang; Yan Li; De-jian Huang; Zhi-qin Sun. "A newly synthesized flavone avoids COMT-catalyzed methylation and mitigates myocardial ischemia/reperfusion injury in H9C2 cells via JNK and P38 pathways". , 27, 4, 1403, 492-499. doi: 10.22038/ijbms.2023.74358.16149
Lin, Ye, Yang, Xin, Li, Yan, Huang, De-jian, Sun, Zhi-qin. (1403). 'A newly synthesized flavone avoids COMT-catalyzed methylation and mitigates myocardial ischemia/reperfusion injury in H9C2 cells via JNK and P38 pathways', , 27(4), pp. 492-499. doi: 10.22038/ijbms.2023.74358.16149
Lin, Ye, Yang, Xin, Li, Yan, Huang, De-jian, Sun, Zhi-qin. A newly synthesized flavone avoids COMT-catalyzed methylation and mitigates myocardial ischemia/reperfusion injury in H9C2 cells via JNK and P38 pathways. , 1403; 27(4): 492-499. doi: 10.22038/ijbms.2023.74358.16149

A newly synthesized flavone avoids COMT-catalyzed methylation and mitigates myocardial ischemia/reperfusion injury in H9C2 cells via JNK and P38 pathways

Iranian Journal of Basic Medical Sciences
مقاله 12، دوره 27، شماره 4، تیر 2024، صفحه 492-499    اصل مقاله (920.39 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22038/ijbms.2023.74358.16149
نویسندگان
Ye Lin1، 2؛ Xin Yang3؛ Yan Li1؛ De-jian Huang3، 4؛ Zhi-qin Sun* 5، 1
1School of Medical and Health Engineering, Changzhou University, Changzhou 213164, P.R. China
2Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
3Food Science and Technology Program, Department of Chemistry, Faculty of Science, National University of Singapore, Singapore 117597, Singapore
4National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu 215123, P.R. China
5Changzhou Second People’s Hospital, Changzhou 213000, P.R. China
چکیده
Objective(s): Luteolin is a flavone that provides defense against myocardial ischemia/reperfusion (I/R) injury. However, this compound is subjected to methylation mediated by catechol-O-methyltransferase (COMT), thus influencing its pharmacological effect. To synthesize a new flavone from luteolin that avoids COMT-catalyzed methylation and find out the protective mechanism of LUA in myocardial I/R injury.
Materials and Methods: Luteolin and 2,2’-azobis (2-amidinopropane) dihydrochloride (AAPH) were used to synthesize the new flavone known as LUAAPH-1 (LUA). Then, the myocardial ischemia/reperfusion injury cell model was established using H9c2 cells to detect the effect in myocardial ischemia/reperfusion regulation and to identify the underlying mechanism. 
Results: Pretreatment with LUA (20 μmol/l) substantially increased cell viability while reducing cell apoptosis rate and caspase-3 expression induced by I/R, and the protective effect of LUA on cell viability was stronger than diosmetin, which is the major methylated metabolite of luteolin. In addition, intracellular reactive oxygen species (ROS) production and calcium accumulation were both inhibited by LUA. Furthermore, we identified that LUA markedly relieved the promotive effects of I/R stimulation upon JNK and p38 phosphorylation.
Conclusion: LUT pretreatment conveys significant cardioprotective effects after myocardial I/R injury, and JNK and p38 MAPK signaling pathway may be involved.
کلیدواژه‌ها
2,2’-azobis - (2-amidinopropane) - dihydrochloride (AAPH)؛ Catechol-O-methyltransferase (COMT) H9C2؛ Luteolin؛ Myocardial ischemia - reperfusion
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