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恩格列净对四氯化碳(CCl4)诱导的小鼠肾毒性的肾保护作用,通过阻断JNK/MKK4/NRF2/NF-κB通路实现。

The reno-protective effect of Empagliflozin against carbon tetrachloride (CCl4)-induced nephrotoxicity in mice halting JNK/MKK4/NRF2/NF-KB pathway.

作者信息

Alzokaky Amany A, Saber Shimaa K, Zaki Mennatallah O

机构信息

Department of Pharmacology and Toxicology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11651, Egypt; Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, 34518, Egypt.

Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.

出版信息

Food Chem Toxicol. 2025 Jul;201:115439. doi: 10.1016/j.fct.2025.115439. Epub 2025 Apr 7.

Abstract

AIM

This study designed to evaluate the reno-protective effects of Empagliflozin (EMPA), a sodium-glucose co-transporter 2 (SGLT2) inhibitor, against carbon tetrachloride (CCl4)-induced nephrotoxicity in mice targeting JNK/MKK4/NRF2/NF-KB pathway.

METHODS

Male albino mice were given EMPA (10 mg/kg, orally) for 4 weeks prior to a single i.p. injection of 10 % CCl4 (20 ml/kg). Mice were sacrificed 48 h post CCl4 injection.

KEY FINDINGS

EMPA attenuated CCl4-induced renal injury, as reflected by a decrease in serum urea and creatinine levels, also preserved the histological integrity of kidney tissue. Theses reno-protective effects of EMPA can be mainly due to its 1. Antioxidant, (↑CAT, ↑SOD, ↑Nrf-2 and ↑ARE), 2. Anti-inflammatory (↓NF-κB and ↓TNF-α) and 3. Anti-apoptotic (↓Caspase-3) proprieties. EMPA also inhibited JNK/MKK4 signaling pathway, which plays a critical role in kidney damage.

CONCLUSION

These finding confirm the reno-protective effect of EMPA with a modulatory impact on JNK/MKK4/Nrf2/NF-κB signaling network; suggesting its therapeutic utility to minimize acute kidney injury (AKI) in clinical setting in the future.

摘要

目的

本研究旨在评估钠-葡萄糖协同转运蛋白2(SGLT2)抑制剂恩格列净(EMPA)对四氯化碳(CCl4)诱导的小鼠肾毒性的肾脏保护作用,其作用靶点为JNK/MKK4/NRF2/NF-κB通路。

方法

雄性白化病小鼠在单次腹腔注射10% CCl4(20 ml/kg)前4周口服EMPA(10 mg/kg)。在CCl4注射后48小时处死小鼠。

主要发现

EMPA减轻了CCl4诱导的肾损伤,表现为血清尿素和肌酐水平降低,同时也保持了肾组织的组织学完整性。EMPA的这些肾脏保护作用主要归因于其1.抗氧化作用(↑CAT、↑SOD、↑Nrf-2和↑ARE),2.抗炎作用(↓NF-κB和↓TNF-α)以及3.抗凋亡作用(↓Caspase-3)。EMPA还抑制了在肾损伤中起关键作用的JNK/MKK4信号通路。

结论

这些发现证实了EMPA的肾脏保护作用及其对JNK/MKK4/Nrf2/NF-κB信号网络的调节作用;表明其在未来临床环境中对减轻急性肾损伤(AKI)的治疗效用。

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