Milk Fat Globule-epidermal Growth Factor 8 (MFG-E8) Attenuates Sepsis-induced Acute Kidney Injury by Inhibiting NF-κB Signaling Pathway1

Overview

Journal Acta Cir Bras

Specialty General Surgery

Date 2019 Mar 8

PMID 30843942

Citations 3

Authors

Yang Zhao

Qian Wang

Bin Zang

Affiliations

Soon will be listed here.

Abstract

Purpose: To explore the effect of milk fat globule-epidermal growth factor 8 (MFG-E8) on sepsis-induced acute kidney injury (SAKI).

Methods: Male C57BL/6 mice were randomized to control, sham, CLP, CLP+PBS, and CLP+rmMFG-E8 groups. SAKI was induced by cecal ligation and puncture (CLP). Recombinant mouse MFG-E8 (rmMFG-E8) (20 μg/kg) or PBS (vehicle) was administered intraperitoneally. Blood, urine and renal tissue were collected at 24 h after CLP. Blood samples were tested for serum kidney injury biomarker and cytokines. Urine samples were collected to detect KIM-1, and NGAL. Real-time PCR was tested for Bax and Bcl-2. TUNEL staining was used to determine renal apoptosis. Western blot was used to detect the expression of Bax, Bcl-2, and proteins in the NF-κB pathway.

Results: MFG-E8 alleviated SAKI by decreasing serum Cre, BUN, urine KIM-1 and NGAL and by mitigating renal pathological changes significant (p < 0.05). IL-1β, IL-6, TNF-α were significantly inhibited by MFG-E8 (p < 0.05). Apoptosis induced by SAKI was markedly suppressed by MFG-E8. Finally, MFG-E8 attenuated the activation of the NF-????B signaling pathway in SAKI.

Conclusion: MFG-E8 has beneficial effects on SAKI, which may be achieved by inhibiting the NF-κB pathway.

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