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15 February 2020 : Animal Research  

Network Pharmacology-Based Prediction and Verification of Qingluo Tongbi Formula to Reduce Liver Toxicity of Tripterygium wilfordii via UGT2B7 in Endoplasmic Reticulum

Ming Li1ABCDEF, Jing Wang2ABCDF, Ling Fu1D, Yan Lu3D, Jianya Xu14A, Lingling Zhou5A, Huaxu Zhu5A, Liang Fang1D, Zhe Feng1A, Tong Xie14A, Xueping Zhou1AG*

DOI: 10.12659/MSM.920376

Med Sci Monit 2020; 26:e920376

Abstract

BACKGROUND: The hepatotoxicity of Tripterygium wilfordii Hook. f. (TWHF) limits its clinic utilization. Qingluo Tongbi formula (QTF) was formulated based on a basic Chinese medicine theory. Previous studies have confirmed the safety and efficacy of QTF in treating rheumatoid arthritis. Therefore, we considered that TWHF could be detoxified based on its reasonable compatibility with QTF. We investigated the detoxicity mechanism of QTF in reducing the liver toxicity of TWHF.

MATERIAL AND METHODS: We used network pharmacology to determine the relevant metabolism targets of TWHF, focusing on the phase II metabolic enzymes uridine diphosphate-glucuronosyltransferase 1A1 (UGT1A1), UGT1A6, and UGT2B7. Based on the molecular mechanisms of these predictions and the results of the network analysis, we designed experiments to verify our hypothesis in vivo. We used western blotting, real-time quantitative polymerase chain reaction (RT-qPCR), double immunofluorescence, and laser confocal microscopy to detect the expression of UGTs. Finally, we used transmission electron microscopy to observe the endoplasmic reticulum structure.

RESULTS: The results confirmed that QTF reversed the TWHF-induced reduction of UGT content in liver microsomes, upregulated UGT1A1 and UGT1A6 but not UGT2B7 in the liver tissue. UGT2B7 expression in the liver and liver microsomes was inconsistent. QTF upregulated the expression of UGT2B7 in the endoplasmic reticulum, and QTF upregulated UGT2B7 expression levels in the endoplasmic reticulum compared with TWHF, which reduced liver toxicity. Structural changes were observed in the endoplasmic reticulum.

CONCLUSIONS: The Chinese traditional medicine compound QTF can achieve the effect of detoxification by upregulating the expression of UGT2B7 in the endoplasmic reticulum.

Keywords: drug-induced liver injury, Endoplasmic Reticulum, Glucuronosyltransferase, Medicine, Chinese Traditional, Tripterygium, Arthritis, Rheumatoid, Drug Therapy, Combination, Drugs, Chinese Herbal, Liver, Microscopy, Electron, Transmission, Microsomes, Liver, Models, Biological

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Editorial

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Ana Luisa Ordóñez-Vázquez, Sofía Murúa Beltrán-Gall, Shreya C. Pal, Nahum Méndez-Sánchez
Liver Research Unit, Medica Sur Clinic Foundation, Mexico City, Mexico

DOI: 10.12659/MSM.938365

Med Sci Monit 2022; 28:e938365

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750