Berberine Alleviates Myocardial Ischemia-reperfusion Injury by Inhibiting Inflammatory Response and Oxidative Stress: the Key Function of MiR-26b-5p-mediated PTGS2/MAPK Signal Transduction
Overview
Authors
Affiliations
Context: Berberine has myocardial protective effects.
Objectives: The protective effects of berberine on heart ischemia-reperfusion (I/R) injury were explored.
Materials And Methods: Human cardiomyocytes were divided into control group, oxygen-glucose deprivation/re-oxygen (OGD/R) (2 h OGD with 24 h reoxygenation) group, OGD/R + low group (5 μM berberine for 24 h) and OGD/R + high group (10 μM berberine for 24 h). Twenty-four Wistar rats were divided into sham group, I/R group (45 min occlusion with 2 h reperfusion), I/R + berberine group (50 mg/kg berberine 1 h before I/R surgery) and I/R + berberine + antagomir (intraperitoneally injected with miR-26b-5p antagomir). MicroRNA profile, effects of berberine on I/R or OGD/R-induced injuries, and the role of miR-26b-5p in the function of berberine were explored.
Results: OGD/R treatment suppressed viability (0.41 ± 0.05 vs. 0.87 ± 0.13, < 0.05), while induced apoptosis (6.6 ± 1.0% vs. 26.3 ± 4.8%, < 0.05) in cardiomyocytes, which was restored by berberine (viability: 0.64 ± 0.01 for 5 μM and 0.72 ± 0.01 for 10 μM, < 0.05; apoptosis: 10.9 ± 2.2 for 5 μM and 7.9 ± 1.3 for 10 μM). Berberine induced miR-26b-5p and inhibited PTGS2/MAPK pathway. MiR-26b-5p inhibition counteracted the protective function of berberine. In rats, berberine (50 mg/kg) improved heart histological structure and suppressed inflammatory response, which was impaired by miR-26b-5p inhibition.
Discussion And Conclusions: Berberine exerted anti-I/R function in heart by inducing miR-26b-5p and suppressing the PTGS2/MAPK pathway. These data promote the application of berberine as an anti-I/R agent.
Natural products for the treatment of ulcerative colitis: focus on the JAK/STAT pathway.
Long D, Mao C, Zhang W, Zhu Y, Xu Y Front Immunol. 2025; 16:1538302.
PMID: 40078988 PMC: 11897526. DOI: 10.3389/fimmu.2025.1538302.
Yang H, Cao G, Li X, Zhao Z, Wang Y, Xu F Biologics. 2025; 19:31-42.
PMID: 40026702 PMC: 11871928. DOI: 10.2147/BTT.S479430.
miRNA-541-5p regulates myocardial ischemia-reperfusion injury by targeting ferroptosis.
Zhao Z, Li B, Cheng D, Leng Y J Cardiothorac Surg. 2025; 20(1):63.
PMID: 39815273 PMC: 11734549. DOI: 10.1186/s13019-024-03260-2.
METTL3, m6A modification, and EGR1: interplay affecting myocardial I/R injury outcomes.
Huang C, Zhang X, Wu S, Chang Q, Zheng Z, Xu J Cell Biol Toxicol. 2024; 41(1):7.
PMID: 39707117 PMC: 11662061. DOI: 10.1007/s10565-024-09937-7.
Liu G, Zhou L, Mu K, Peng L, Ran F, Feng G ACS Omega. 2024; 9(41):42199-42211.
PMID: 39431090 PMC: 11483384. DOI: 10.1021/acsomega.4c04212.