September 22, 2026 · Journal of hepatology · DOI: 10.1016/j.jhep.2026.08.036

Restoration of aged liver regeneration by youthful systemic factors via LTβ-driven hepatocyte reprogramming

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This study investigates how youthful systemic factors can restore liver regeneration in aged individuals, focusing on the role of lymphotoxin β (LTβ) signaling in hepatocyte reprogramming. The authors found that young B cells enhance liver regeneration in aged mice by promoting transient somatic reprogramming of periportal hepatocytes through LTβ/LTBR signaling. These findings suggest potential therapeutic strategies for improving liver regeneration in elderly patients, particularly in the context of liver transplantation.

Jiang Chenhao, Han Lu, Liu Yasong, Zhang Jianhao, Chen Huaxin, Wen Xinyun, Chi Xianda, Fan Linda, Li Tianyi, Shi Shaojun, Chen Sunrui, Xiao Jiaqi, Lv Xing, Zhang Jiebin, Zhao Xuegang, Zhang Yujun, Liu Jianrong, Zhang Xu, Lv Guo, Qiu Yuan, Yao Jia, Zeng Kaining, Li Haibo, Lu Tongyu, Ye Linsen, Fu Binsheng, Li Hua, Yi Shuhong, Liu Wei, Zhang Qi, Chen Guihua, Cai Jianye, Xiang Andy Peng, Zhang Yingcai, Sui Xin, Yang Yang

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