학술논문

Clonally expanded EOMES.sup.+ Tr1-like cells in primary and metastatic tumors are associated with disease progression
eomesodermin homolog
Document Type
Report
Source
Nature Immunology. June 2021, Vol. 22 Issue 6, p735, 11 p.
Subject
Italy
Language
English
ISSN
1529-2908
Abstract
Author(s): Raoul J. P. Bonnal [sup.1] [sup.2] , Grazisa Rossetti [sup.1] [sup.2] , Enrico Lugli [sup.3] [sup.4] , Marco De Simone [sup.1] [sup.23] , Paola Gruarin [sup.1] , Jolanda Brummelman [...]
Regulatory T (T.sub.reg) cells are a barrier for tumor immunity and a target for immunotherapy. Using single-cell transcriptomics, we found that CD4.sup.+ T cells infiltrating primary and metastatic colorectal cancer and non-small-cell lung cancer are highly enriched for two subsets of comparable size and suppressor function comprising forkhead box protein P3.sup.+ T.sub.reg and eomesodermin homolog (EOMES).sup.+ type 1 regulatory T (Tr1)-like cells also expressing granzyme K and chitinase-3-like protein 2. EOMES.sup.+ Tr1-like cells, but not T.sub.reg cells, were clonally related to effector T cells and were clonally expanded in primary and metastatic tumors, which is consistent with their proliferation and differentiation in situ. Using chitinase-3-like protein 2 as a subset signature, we found that the EOMES.sup.+ Tr1-like subset correlates with disease progression but is also associated with response to programmed cell death protein 1-targeted immunotherapy. Collectively, these findings highlight the heterogeneity of T.sub.reg cells that accumulate in primary tumors and metastases and identify a new prospective target for cancer immunotherapy. Human primary and metastatic tumors harbor CD4.sup.+ T.sub.reg cells that can suppress antitumor immune responses. Bonnal et al. identify an intratumoral type 1 T.sub.reg-like CD4.sup.+ T cell subset that expresses the transcription factor EOMES, granzyme K and CHI3L2. This EOMES.sup.+ T cell subset correlates with disease progression but is responsive to PD-1 checkpoint blockade immunotherapy.