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KMID : 1040620240300010080
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Clinical and Molecular Hepatology
2024 Volume.30 No. 1 p.80 ~ p.97
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Protein-centric omics analysis reveals circulating complements linked to non-viral liver diseases as potential therapeutic targets
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Yingzhou Shi
Hang Dong
Shiwei Sun
Xiaoqin Wu
Jiansong Fang
Jianbo Zhao
Junming Han
Zongyue Li
Huixiao Wu
Luna Liu
Wanhong Wu
Yang Tian
Yang Tian
Xiude Fan
Chao Xu
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Abstract
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Background/Aims: To evaluate the causal correlation between complement components and non-viral liver diseases and their potential use as druggable targets.
Methods: We conducted Mendelian randomization (MR) to assess the causal role of circulating complements in the risk of non-viral liver diseases. A complement-centric protein interaction network was constructed to explore biological functions and identify potential therapeutic options.
Results: In the MR analysis, genetically predicted levels of complement C1q C chain (C1QC) were positively associated
with the risk of autoimmune hepatitis (odds ratio 1.125, 95% confidence interval 1.018?1.244), while complement factor H-related protein 5 (CFHR5) was positively associated with the risk of primary sclerosing cholangitis (PSC;1.193, 1.048? 1.357). On the other hand, CFHR1 (0.621, 0.497?0.776) and CFHR2 (0.824, 0.703?0.965) were inversely associated with the risk of alcohol-related cirrhosis. There were also significant inverse associations between C8 gamma chain (C8G) and PSC (0.832, 0.707?0.979), as well as the risk of metabolic dysfunction-associated steatotic liver disease (1.167, 1.036?1.314). Additionally, C1S (0.111, 0.018?0.672), C7 (1.631, 1.190?2.236), and CFHR2 (1.279, 1.059?1.546) were significantly associated with the risk of hepatocellular carcinoma. Proteins from the complement regulatory networks and various liver diseaserelated proteins share common biological processes. Furthermore, potential therapeutic drugs for various liver diseases were identified through drug repurposing based on the complement regulatory network.
Conclusions: Our study suggests that certain complement components, including C1S, C1QC, CFHR1, CFHR2, CFHR5, C7, and C8G, might play a role in non-viral liver diseases and could be potential targets for drug development.
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KEYWORD
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Liver diseases, Complement system proteins, Mendelian randomization analysis, Drug repositioning
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