Maosheng Cheng, Shuang Chen, Kang Li, Ganping Wang, Gan Xiong, Rongsong Ling, Caihua Zhang, Zhihui Zhang, Hui Han, Zhi Chen, Xiaochen Wang, Yu Liang, Guoli Tian, Ruoxing Zhou, Yan Zhu, Jieyi Ma, Jiahong Liu, Shuibin Lin, Hao Xu, Demeng Chen, Yang Li, Liang Peng
Interplay between innate and adaptive immune cells is important for the antitumor immune response. However, the tumor microenvironment may turn immune suppressive, and tumor associated macrophages are playing a role in this transition. Here, we show that CD276, expressed on tumor-associated macrophages (TAM), play a role in diminishing the immune response against tumors. Using a model of tumors induced by N-butyl-N-(4-hydroxybutyl) nitrosamine in BLCA male mice we show that genetic ablation of CD276 in TAMs blocks efferocytosis and enhances the expression of the major histocompatibility complex class II (MHCII) of TAMs...
April 1, 2024: Nature Communications