Esketamine alleviates hypoxia/reoxygenation injury of cardiomyocytes by regulating TRPV1 expression and inhibiting intracellular Ca 2+concentration

被引：2
作者：
Zhang, Ying [1 ]
Lu, Quanmei [1 ]
Hu, Hanchun [1 ]
Yang, Chunchen [1 ]
Zhao, Qihong [2 ]
机构：
[1] Affiliated Hosp 1, Bengbu Med Coll, Dept Anesthesiol, Bengbu, Anhui, Peoples R China
[2] Bengbu Med Coll, Affiliated Hosp 2, Dept Anesthesiol, Bengbu, Anhui, Peoples R China
来源：
CLINICS | 2024年 / 79卷
关键词：
Esketamine; TRPV1; Cardiomyocytes; Hypoxia/Reoxygenation Injury; Ca2+; APOPTOSIS; CHANNELS;
D O I：
10.1016/j.clinsp.2024.100363
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
Objective: This study aimed to investigate the effect of Esketamine (ESK) on the Hypoxia/Reoxygenation (H/R) injury of cardiomyocytes by regulating TRPV1 and inhibiting the concentration of intracellular Ca2+. Methods: The H/R injury model of H9c2 cardiomyocytes was established after 4h hypoxia and 6h reoxygenation. H9c2 cells were treated with different concentrations of ESK or TRPV1 agonist capsaicin (10 mu M) or TRPV1 inhibitor capsazepine (1 mu M). Cell viability was detected by CCK-8 method, and apoptosis by flow cytometry. Intracellular Ca2+ concentration was evaluated by Fluo-4 AM. LDH, MDA, SOD, and GSH-Px were detected with corresponding commercial kits. TRPV1 and p-TRPV1 proteins were detected by Western blot. Results: After H/R, H9c2 cell viability decreased, apoptosis increased, intracellular Ca2+ concentration increased, LDH and MDA levels increased, SOD and GSH-Px levels decreased, and p-TRPV1 expression increased. ESK treatment rescued these changes induced by H/R. After up-regulating TRPV1, the protective effect of ESK on H/R injury of H9c2 cells was weakened, while down-regulating TRPV1 could further protect against H/R injury. Conclusion: ESK alleviates H/R injury of cardiomyocytes by regulating TRPV1 expression and inhibiting intracellular Ca2+ concentration.
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页数：7
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