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Título: Functional mechanism of baicalein in alleviating severe acute pancreatitis-acute lung injury by blocking the TLR4/MyD88/TRIF signaling pathway
Fecha de publicación: 2024
Editorial: Universidad de Murcia. Departamento de Biología Celular e Histología
Cita bibliográfica: Histology and Histopathology, Vol.39, nº10, (2024)
ISSN: 1699-5848
0213-3911
Materias relacionadas: CDU::6 - Ciencias aplicadas::61 - Medicina::616 - Patología. Medicina clínica. Oncología
Palabras clave: Severe acute pancreatitis-acute lung injury
Baicalein
TLR4
MyD88
TRIF
Oxidative stress
miR182
Inflammation
Resumen: y. Severe acute pancreatitis-acute lung injury (SAP-ALI) is a disease with high mortality. This study aims to explore the mechanism of baicalein on SAP-ALI in rats by blocking toll-like receptor-4 (TLR4)/myeloid differentiation primary response gene 88 (MyD88)/TIRdomain-containing adapter-inducing interferon-β (TRIF) signal pathway. The SAP-ALI rat model was established by intraperitoneal injection of 3% pentobarbital sodium (30 mg/kg), with pancreas and intestines turned over, injected with 3.5% sodium taurocholate backward into the bile-pancreatic duct at 0.1 mL/100 g for 12h, and treated with baicalein, lipopolysaccharide (LPS), miR182 agomir, or miR-182 antagomir. The TLR4/MyD88/ TRIF pathway was activated using LPS in SAP-ALI rats after baicalein treatment. Baicalein attenuated inflammatory cell infiltration, alveolar wall edema, decreased W/D ratio and levels of TLR4, MyD88, and TRIF in the lung tissues, reduced levels of inflammatory factors in pancreatic and lung tissues and BALF, diminished ROS, and elevated GSH, SOD and CAT in pancreatic and lung tissues of SAP-ALI rats. Activation of the TLR4/MyD88/TRIF pathway partly abrogated baicalein-mediated improvements in inflammation and oxidative stress in SAP-ALI rats. miR-182 targeted TLR4. miR-182 suppressed inflammation and oxidative stress in SAP-ALI rats by targeting TLR4. Inhibition of miR-182 partly nullified baicalein-mediated attenuation on inflammation and oxidative stress in SAP-ALI rats. In conclusion, baicalein can inhibit the TLR4/MyD88/ TRIF pathway and alleviate inflammatory response and oxidative stress in SAP-ALI rats by upregulating miR182 and suppressing TLR4, thus ameliorating SAP-ALI.
Autor/es principal/es: Yang, Qingjing
Yue, Chao
Huang, Xing
Wang, Zihe
Li, Zhenlu
Hu, Weiming
Lu, Huimin
URI: http://hdl.handle.net/10201/144760
DOI: https://doi.org/10.14670/HH-18-733
Tipo de documento: info:eu-repo/semantics/article
Número páginas / Extensión: 14
Derechos: info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Aparece en las colecciones:Vol.39,nº10 (2024)

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