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Gaseous signal molecule SO2 regulates autophagy through PI3K/ AKT pathway inhibits cardiomyocyte apoptosis and improves myocardial fibrosis in rats with type II diabetes

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영문명
Gaseous signal molecule SO2 regulates autophagy through PI3K/ AKT pathway inhibits cardiomyocyte apoptosis and improves myocardial fibrosis in rats with type II diabetes
발행기관
대한생리학회-대한약리학회
저자명
Junxiong Zhao Qian Wu Ting Yang Liangui Nie Shengquan Liu Jia Zhou Jian Chen Zhentao Jiang
간행물 정보
『The Korean Journal of Physiology & Pharmacology』제26권 제6호, 541~556쪽, 전체 16쪽
주제분류
의약학 > 의학일반
파일형태
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발행일자
2022.11.30
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국문 초록

영문 초록

Myocardial fibrosis is a key link in the occurrence and development of diabetic cardiomyopathy. Its etiology is complex, and the effect of drugs is not good. Cardiomyocyte apoptosis is an important cause of myocardial fibrosis. The purpose of this study was to investigate the effect of gaseous signal molecule sulfur dioxide (SO2) on diabetic myocardial fibrosis and its internal regulatory mechanism. Masson and TUNEL staining, Western-blot, transmission electron microscopy, RT-qPCR, immunofluorescence staining, and flow cytometry were used in the study, and the interstitial collagen deposition, autophagy, apoptosis, and changes in phosphatidylinositol 3-kinase (PI3K)/AKT pathways were evaluated from in vivo and in vitro experiments. The results showed that diabetic myocardial fibrosis was accompanied by cardiomyocyte apoptosis and down-regulation of endogenous SO2-producing enzyme aspartate aminotransferase (AAT)1/2. However, exogenous SO2 donors could up-regulate AAT1/2, reduce apoptosis of cardiomyocytes induced by diabetic rats or high glucose, inhibit phosphorylation of PI3K/AKT protein, up-regulate autophagy, and reduce interstitial collagen deposition. In conclusion, the results of this study suggest that the gaseous signal molecule SO2 can inhibit the PI3K/AKT pathway to promote cytoprotective autophagy and inhibit cardiomyocyte apoptosis to improve myocardial fibrosis in diabetic rats. The results of this study are expected to provide new targets and intervention strategies for the prevention and treatment of diabetic cardiomyopathy.

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INTRODUCTION
METHODS
RESULTS
DISCUSSION
FUNDING
ACKNOWLEDGEMENTS
CONFLICTS OF INTEREST
REFERENCES

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APA

Junxiong Zhao,Qian Wu,Ting Yang,Liangui Nie,Shengquan Liu,Jia Zhou,Jian Chen,Zhentao Jiang. (2022).Gaseous signal molecule SO2 regulates autophagy through PI3K/ AKT pathway inhibits cardiomyocyte apoptosis and improves myocardial fibrosis in rats with type II diabetes. The Korean Journal of Physiology & Pharmacology, 26 (6), 541-556

MLA

Junxiong Zhao,Qian Wu,Ting Yang,Liangui Nie,Shengquan Liu,Jia Zhou,Jian Chen,Zhentao Jiang. "Gaseous signal molecule SO2 regulates autophagy through PI3K/ AKT pathway inhibits cardiomyocyte apoptosis and improves myocardial fibrosis in rats with type II diabetes." The Korean Journal of Physiology & Pharmacology, 26.6(2022): 541-556

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