Nature Communications (Jul 2022)

HRS phosphorylation drives immunosuppressive exosome secretion and restricts CD8+ T-cell infiltration into tumors

  • Lei Guan,
  • Bin Wu,
  • Ting Li,
  • Lynn A. Beer,
  • Gaurav Sharma,
  • Mingyue Li,
  • Chin Nien Lee,
  • Shujing Liu,
  • Changsong Yang,
  • Lili Huang,
  • Dennie T. Frederick,
  • Genevieve M. Boland,
  • Guangcan Shao,
  • Tatyana M. Svitkina,
  • Kathy Q. Cai,
  • Fangping Chen,
  • Meng-Qiu Dong,
  • Gordon B. Mills,
  • Lynn M. Schuchter,
  • Giorgos C. Karakousis,
  • Tara C. Mitchell,
  • Keith T. Flaherty,
  • David W. Speicher,
  • Youhai H. Chen,
  • Meenhard Herlyn,
  • Ravi K. Amaravadi,
  • Xiaowei Xu,
  • Wei Guo

DOI
https://doi.org/10.1038/s41467-022-31713-6
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 12

Abstract

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Lack of CD8+ T-cell infiltration into solid tumors is associated with poor responsiveness to immune checkpoint therapy (ICT). Here, the authors show that blocking the phosphorylation of HRS to reduce the induction of immunosuppressive exosomes promotes CD8+ T-cell infiltration into tumors and enhances the efficacy of ICT in mouse melanoma models.