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首页> 外文期刊>Journal of applied toxicology >Multiple pathways are responsible to the inhibitory effect of butorphanol on OGD/R‐induced apoptosis in AC16 cardiomyocytes
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Multiple pathways are responsible to the inhibitory effect of butorphanol on OGD/R‐induced apoptosis in AC16 cardiomyocytes

机译：Multiple pathways are responsible to the inhibitory effect of butorphanol on OGD/R‐induced apoptosis in AC16 cardiomyocytes

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Abstract Ischemic heart disease is the leading cause of cardiovascular mortality, which is related to cardiac myocyte apoptosis. Butorphanol is an opioid receptor agonist with potential cardioprotective function. The purpose of this work is to explore the function and mechanism of butorphanol in oxygen and glucose deprivation/reperfusion (OGD/R)‐induced cardiomyocyte apoptosis. The overlapping targets of ischemic heart disease and butorphanol were analyzed according to GeneCards, ParmMapper, Cytoscape, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. Human cardiomyocyte AC16 cells were incubated with butorphanol and then stimulated with OGD/R. Cell injury was investigated by Cell Counting Kit‐8, lactate dehydrogenase (LDH) assay kit, TUNEL staining, caspase‐3 activity assay kit, and Western blotting. The proteins in signaling pathways were measured using Western blotting. A total of 93 overlapping targets of ischemic heart disease and butorphanol were obtained. Pathway analysis exhibited that these targets might be involved in multiple signaling pathways. Butorphanol alone showed little cytotoxicity to cardiomyocytes, and it protected against OGD/R‐induced viability inhibition, LDH release, cell apoptosis, and increase of caspase‐3 activity and expression levels of cleaved caspase‐3 and Bim. Butorphanol promoted the activation of the phosphoinositide 3‐kinase (PI3K)/protein kinase B (Akt)/forkhead box O (FoxO) and hypoxia‐inducible factor‐1α (HIF‐1α)/vascular endothelial growth factor (VEGF) pathways and attenuated the activation of the mitogen‐activated protein kinase (MAPK) signaling in OGD/R‐treated cardiomyocytes. In conclusion, butorphanol prevents OGD/R‐induced cardiomyocyte apoptosis through activating the PI3K/Akt/FoxO and HIF‐1α/VEGF pathways and inactivating the MAPK pathway.

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