Ruixin Wu, Chunming Sun, Xi Chen, Runyue Yang, Yuxuan Luan, Xiang Zhao, Panpan Yu, Rongkui Luo, Yingyong Hou, Ruotong Tian, Shasha Bian, Yuli Li, Yinghua Dong, Qian Liu, Weiwei Dai, Zhuoyang Fan, Rucheng Yan, Binyang Pan, Siheng Feng, Jing Wu, Fangzhen Chen, Changle Yang, Hanlin Wang, Haochen Dai, Minfeng Shu
Malignant glioma exhibits immune evasion characterized by highly expressing the immune checkpoint CD47. RNA 5-methylcytosine(m5C) modification plays a pivotal role in tumor pathogenesis. However, the mechanism underlying m5C-modified RNA metabolism remains unclear, as does the contribution of m5C-modified RNA to the glioma immune microenvironment. In this study, we demonstrate that the canonical 28SrRNA methyltransferase NSUN5 down-regulates β-catenin by promoting the degradation of its mRNA, leading to enhanced phagocytosis of tumor-associated macrophages (TAMs)...
April 2, 2024: Proceedings of the National Academy of Sciences of the United States of America