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Canagliflozin Alleviates Pressure Overload-Induced Cardiac Dysfunction via PINK1 Regulation by Inhibiting
Wenjun Xiong1, Nana Xiong2, Yifan Wu2
1Department of Cardiology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China; Pharmaceutical Science, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China.
Canagliflozin protects the heart by inhibiting excessive mitophagy and ferroptosis, crucial processes in heart failure. This reveals a new mechanism for protecting heart cells from stress-induced damage.
Area of Science:
- Cardiovascular Research
- Cellular Biology
- Pharmacology
Background:
- Cardiac remodeling is a key target for heart failure intervention.
- Canagliflozin shows cardiovascular benefits in type 2 diabetes patients.
- Excessive mitophagy may contribute to ferroptosis in heart failure.
Purpose of the Study:
- To investigate the role of mitophagy-ferroptosis crosstalk in heart failure.
- To determine if canagliflozin offers additional protection by modulating this axis.
Main Methods:
- Utilized an isoproterenol-induced heart failure mouse model.
- Assessed mitophagy, ferroptosis, and cardiomyocyte death.
- Employed ferroptosis inhibitors, mitophagy modulators, and PINK1 manipulation.
Main Results:
- Heart failure induced excessive mitophagy and ferroptosis, leading to cardiomyocyte death.
- Canagliflozin attenuated cardiomyocyte death by suppressing excessive mitophagy and restoring GPX4.
- PINK1 overexpression partially reversed canagliflozin's protective effects.
Conclusions:
- Canagliflozin attenuates stress-induced cardiomyocyte ferroptosis via PINK1-mediated mitophagy inhibition.
- Restoration of GPX4 expression is a key effect of canagliflozin.
- Modulating the mitophagy-ferroptosis axis is a novel cardioprotective strategy for heart failure.
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