Tianxiang Zhang, Weiwei Yu, Xiaoxiao Cheng, Jacky Yeung, Viviana Ahumada, Paul C Norris, Mackenzie J Pearson, Xuan Yang, Willemijn van Deursen, Christina Halcovich, Ala Nassar, Mathew D Vesely, Yu Zhang, Jianping Zhang, Lan Ji, Dallas B Flies, Linda Liu, Solomon Langermann, William J LaRochelle, Rachel Humphrey, Dejian Zhao, Qiuyu Zhang, Jindong Zhang, Runxia Gu, Kurt A Schalper, Miguel F Sanmamed, Lieping Chen
T cells are often absent from human cancer tissues during both spontaneously induced immunity and therapeutic immunotherapy, even in the presence of a functional T cell-recruiting chemokine system, suggesting the existence of T cell exclusion mechanisms that impair infiltration. Using a genome-wide in vitro screening platform, we identified a role for phospholipase A2 group 10 (PLA2G10) protein in T cell exclusion. PLA2G10 up-regulation is widespread in human cancers and is associated with poor T cell infiltration in tumor tissues...
April 26, 2024: Science Immunology