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Article Publish Status: FREE
Abstract Title:

Isoliquiritigenin attenuates LPS-induced AKI by suppression of inflammation involving NF-κB pathway.

Abstract Source:

Am J Transl Res. 2018 ;10(12):4141-4151. Epub 2018 Dec 15. PMID: 30662657

Abstract Author(s):

Yun Tang, Chan Wang, Yanmei Wang, Jiong Zhang, Fang Wang, Li Li, Xianglong Meng, Guisen Li, Yi Li, Li Wang

Article Affiliation:

Yun Tang

Abstract:

Septic acute kidney injury (AKI) characterized as acute infection and renal inflammation, still lacks of effective therapies. Isoliquiritigenin (ISL) as a small molecular from licorice, is able to inhibit the expression of HMGB1. However, the role and mechanism of ISL in septic AKI has not been investigated. In this study, we used LPS injection to induce murine septic AKI. One hour before LPS injection, 50 mg/kg ISL was once orally given to the mice. For thestudy, HKhuman tubular cells were respectively treated with 50μM and 100 μM ISL 5 hrs before 2 μg/ml LPS stimulation. Then we observed that ISL ameliorated renal dysfunction and attenuated renal tubular injury. ISL inhibited the phosphorylation of IκB-α and NF-κB p65 after LPS induction bothand. ISL also inhibited NF-κB p65 translocation from cytoplasm to the nucleus upon LPS stimulation. Further, NF-κB p65 translocation could trigger macrophage polarization, neutrophil activation and pro-inflammatory cytokines secretion in LPS-induced inflammation. These results showed that ISL could alleviate LPS-induced AKIby suppressing NF-κB p65 translocation and inhibiting inflammatory responses, indicating protective effects of ISL in LPS-induced acute renal inflammation. This study might be useful for designing potential clinical trials to prevent and treat sepsis induced AKI in patients with serious illness.

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