June 18, 2026 · Journal of hepatology · DOI: 10.1016/j.jhep.2026.05.025

Interleukin-19 ameliorates drug-induced liver injury by limiting proinflammatory macrophage infiltration via SUMOylation of C/EBPβ

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This study investigates the role of interleukin-19 (IL-19) in acetaminophen-induced liver injury (AILI) and its underlying inflammatory mechanisms. The authors find that IL-19 limits proinflammatory macrophage infiltration by promoting the SUMOylation of C/EBPβ, thereby reducing the expression of proinflammatory genes and mitigating AILI. These findings suggest that IL-19 could be a potential therapeutic target for treating AILI.

Peng Xiao, Qiuhong Zai, Ningning Ma, Jiaqiang Zhang, Yawen Hao, Yue Zhou, Feiyu Zhang, Tao Liu, Heming Sun, Jinming Zhang, Xinyi Liu, Shujun Ge, Shijia Ling, Yingfen Chen, Yixin Li, Liu Yang, Gang Ren, Robim M Rodrigues, Xiaogang Xiang, Man Li, Junqi Niu, Yanhang Gao, Yong He

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