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The Protective Effect of Kaempferol Against Ischemia/Reperfusion Injury Through Activating SIRT3 to Inhibit Oxidative Stress
Sun, Chuang; Wang, Tingting; Wang, Changying; Zhu, Zhenyin; Wang, Xiaoni; Xu, Jia; 1Xian International Medical Center Hospital.
  • Sun, Chuang; Xian International Medical Center Hospital. Heart Hospital. Xian. CN
  • Wang, Tingting; Xian International Medical Center Hospital. Heart Hospital. Xian. CN
  • Wang, Changying; Xian International Medical Center Hospital. Heart Hospital. Xian. CN
  • Zhu, Zhenyin; Xian International Medical Center Hospital. Heart Hospital. Xian. CN
  • Wang, Xiaoni; Xian International Medical Center Hospital. Heart Hospital. Xian. CN
  • Xu, Jia; Xian International Medical Center Hospital. Heart Hospital. Xian. CN
Rev. bras. cir. cardiovasc ; 37(3): 335-342, May-June 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1376549
ABSTRACT
Abstract

Introduction:

The objective of this study is to investigate the protective effect of kaempferol against ischemia/reperfusion (IR) injury and the underlying molecular mechanisms.

Methods:

H9C2 cells were pretreated with kaempferol for 24 hours and further insulted with IR injury. Cell vitality, reactive oxygen species (ROS) level, glutathione (GSH) level, nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, and sirtuin-3 (SIRT3), B-cell lymphoma 2 (Bcl2), and Bcl2-associated X protein (Bax) expressions were evaluated. Moreover, short interfering ribonucleic acid targeting SIRT3 was used to investigate the role of SIRT3 against IR mediated by kaempferol in vitro. IR mice models were also established to confirm the protective effects of kaempferol on IR in vivo.

Results:

After IR injury, H9C2 cells vitality was reduced, ROS levels, NADPH oxidase activity, and Bax expressions were increased, and GSH levels and Bcl2 expressions were decreased. After kaempferol pretreatment, the vitality of H9C2 cells was increased. The levels of ROS, NADPH oxidase activity, and Bax expression were decreased. In addition, levels of GSH and Bcl2 expression were enhanced. Furthermore, silencing SIRT3 attenuated the protective effect mediated by kaempferol, with increased ROS levels, NADPH oxidase activity, and Bax expression, along with reduced GSH level and Bcl2 expression. In vivo IR model showed that kaempferol could preserve IR-damaged cardiac function.

Conclusion:

Kaempferol has the capability of attenuating H9C2 cells IR injury through activating SIRT3 to inhibit oxidative stress.


Full text: Available Index: LILACS (Americas) Language: English Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2022 Type: Article Affiliation country: China Institution/Affiliation country: Xian International Medical Center Hospital/CN

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Full text: Available Index: LILACS (Americas) Language: English Journal: Rev. bras. cir. cardiovasc Journal subject: Cardiology / General Surgery Year: 2022 Type: Article Affiliation country: China Institution/Affiliation country: Xian International Medical Center Hospital/CN