Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
Clinical Pharmacology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
Biomed Pharmacother. 2022 Jun;150:113070. doi: 10.1016/j.biopha.2022.113070. Epub 2022 May 6.
Myocardial ischemia‑reperfusion injury (MI/R) is considered a main risk factor for global cardiac mortality and morbidity, for which no effective treatment exists. Both inflammation and epigenetic regulation play a pivotal role in the early stage of MI/R. The present study aimed at investigating the prospective anti-inflammatory role of trans-anethole (TNA) in targeting MI/R and its related mechanism in upregulating the expression of the inflammatory and cardiac-related gene (VAV3), and its epigenetic regulators (lncRNA-JRKL-AS1 and miR-1298) that were retrieved from in-silico data analysis in an ischemia/reperfusion (I/R) rat model.
MATERIALS & METHODS: TNA was administered in 3 doses (50, 100, and 200 mg/kg), 15 min prior to coronary ligation in male Wistar rats. The left ventricular end-diastolic pressure and dP/dtmax were assessed. Histopathological, biochemical, and molecular analyses were performed to assess the effects of TNA pre-treatment on the I/R rats model.
TNA alleviated the I/R-induced cardiac injury pathologically and improved the cardiac function tests and enzymes. At the molecular level, TNA upregulated the expression level of the retrieved RNA-based panel (VAV3 mRNA/miR-1298/lncRNA JRKL-AS1). At the protein level, TNA decreased the cardiac content of the pro-inflammatory cytokine TNF-α.
TNA has demonstrated a potential ability to alleviate the cardiac injury and attenuate the inflammatory response following ischemia-reperfusion in the rat model through modulation of the expression of RNA panel (VAV3 mRNA/miR-1298/lncRNA JRKL-AS1) and TNF- α protein.
本研究旨在探讨反式茴香脑(TNA)通过靶向心肌缺血再灌注(MI/R)损伤,调节炎症和心脏相关基因(VAV3)及其表观遗传调控因子(lncRNA-JRKL-AS1 和 miR-1298)的表达,发挥其在 MI/R 中的抗炎作用。方法:雄性 Wistar 大鼠在冠状动脉结扎前 15min 给予 TNA(50、100 和 200mg/kg)3 个剂量,评估左心室舒张末期压和 dp/dtmax。进行组织病理学、生化和分子分析,以评估 TNA 预处理对 I/R 大鼠模型的影响。结果:TNA 减轻了 I/R 诱导的心脏损伤,改善了心脏功能试验和酶的变化。在分子水平上,TNA 上调了 RNA 面板(VAV3 mRNA/miR-1298/lncRNA JRKL-AS1)的表达水平。在蛋白水平上,TNA 降低了心脏内促炎细胞因子 TNF-α的含量。结论:TNA 通过调节 RNA 面板(VAV3 mRNA/miR-1298/lncRNA JRKL-AS1)和 TNF-α 蛋白的表达,具有减轻大鼠模型缺血再灌注后心脏损伤和炎症反应的潜在能力。