Cordyceps militaris polysaccharide converts immunosuppressive macrophages into M1-like phenotype and activates T lymphocytes by inhibiting the PD-L1/PD-1 axis between TAMs and T lymphocytes

Sixue Bi, Weijuan Huang, Shan Chen, Chunhua Huang, Chunlei Li, Zhongyi Guo, Jianing Yang, Jianhua Zhu, Liyan Song, Rongmin Yu