Circulating monocytes accelerate acute liver failure by IL‐6 secretion in monkey |
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| Authors: | Gang Guo Yongjie Zhu Zhenru Wu Hongjie Ji Xufeng Lu Yongjie Zhou Yuanmin Li Xiaoyue Cao Yanrong Lu Prue Talbot Jiayu Liao Yujun Shi Hong Bu |
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| Affiliation: | 1. Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China;2. Department of Cell Biology & Neuroscience, University of California, Riverside, CA, USA;3. The UCR Stem Cell Center and Core, University of California, Riverside, CA, USA;4. Department of Bioengineering, University of California, Riverside, CA, USA |
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| Abstract: | Acute liver failure (ALF) is associated with high mortality, and a poor understanding of the underlying pathophysiology has resulted in a lack of effective treatments so far. Here, using an amatoxin‐induced rhesus monkey model of ALF, we panoramically revealed the cellular and molecular events that lead to the development of ALF. The challenged monkeys with toxins underwent a typical course of ALF including severe hepatic injury, systemic inflammation and eventual death. Adaptive immune was not noticeably disturbed throughout the progress of ALF. A systematic examination of serum factors and cytokines revealed that IL‐6 increase was the most rapid and drastic. Interestingly, we found that IL‐6 was mainly produced by circulating monocytes. Furthermore, ablation of monocyte‐derived IL‐6 in mice decreased liver injury and systemic inflammation following chemical injection. Our findings reveal a critical role of circulating monocytes in initiating and accelerating ALF, indicating a potential therapeutic target in clinical treatment for ALF. |
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| Keywords: | acute liver failure interleukin‐6 monocyte non‐human primate |
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