CD83 expression characterizes precursor exhausted T cell population

Zhiwen Wu, Toshiaki Yoshikawa, Satoshi Inoue, Yusuke Ito, Hitomi Kasuya, Takahiro Nakashima, Haosong Zhang, Saki Kotaka, Waki Hosoda, Shiro Suzuki, Yuki Kagoya

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

T cell exhaustion is a main obstacle against effective cancer immunotherapy. Exhausted T cells include a subpopulation that maintains proliferative capacity, referred to as precursor exhausted T cells (TPEX). While functionally distinct and important for antitumor immunity, TPEX possess some overlapping phenotypic features with the other T-cell subsets within the heterogeneous tumor-infiltrating T-lymphocytes (TIL). Here we explore surface marker profiles unique to TPEX using the tumor models treated by chimeric antigen receptor (CAR)-engineered T cells. We find that CD83 is predominantly expressed in the CCR7+PD1+ intratumoral CAR-T cells compared with the CCR7-PD1+ (terminally differentiated) and CAR-negative (bystander) T cells. The CD83+CCR7+ CAR-T cells exhibit superior antigen-induced proliferation and IL-2 production compared with the CD83- T cells. Moreover, we confirm selective expression of CD83 in the CCR7+PD1+ T-cell population in primary TIL samples. Our findings identify CD83 as a marker to discriminate TPEX from terminally exhausted and bystander TIL.

Original languageEnglish
Article number258
JournalCommunications biology
Volume6
Issue number1
DOIs
Publication statusPublished - 2023 Dec

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • General Biochemistry,Genetics and Molecular Biology
  • General Agricultural and Biological Sciences

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