» Articles » PMID: 33827905

Intratumoral CD103+ CD8+ T Cells Predict Response to PD-L1 Blockade

Abstract

Background: CD8+ tissue-resident memory T (T) cells, marked by CD103 () expression, are thought to actively suppress cancer progression, leading to the hypothesis that their presence in tumors may predict response to immunotherapy.

Methods: Here, we test this by combining high-dimensional single-cell modalities with bulk tumor transcriptomics from 1868 patients enrolled in lung and bladder cancer clinical trials of atezolizumab (anti-programmed cell death ligand 1 (PD-L1)).

Results: was identified as the most significantly upregulated gene in inflamed tumors. Tumor CD103+ CD8+ T cells exhibited a complex phenotype defined by the expression of checkpoint regulators, cytotoxic proteins, and increased clonal expansion.

Conclusions: Our analyses indeed demonstrate that the presence of CD103+ CD8+ T cells, quantified by tracking intratumoral CD103 expression, can predict treatment outcome, suggesting that patients who respond to PD-1/PD-L1 blockade are those who exhibit an ongoing antitumor T-cell response.

Citing Articles

Tissue-resident memory T cells in urinary tract diseases.

Xu G, Li Y, Lu G, Xie D Front Immunol. 2025; 16:1535930.

PMID: 40066439 PMC: 11891219. DOI: 10.3389/fimmu.2025.1535930.


Society for Immunotherapy of Cancer (SITC) consensus statement on essential biomarkers for immunotherapy clinical protocols.

Cottrell T, Lotze M, Ali A, Bifulco C, Capitini C, Chow L J Immunother Cancer. 2025; 13(3).

PMID: 40054999 PMC: 11891540. DOI: 10.1136/jitc-2024-010928.


The XCL1-XCR1 axis supports intestinal tissue residency and antitumor immunity.

Ferry A, Mempel K, Monell A, Reina-Campos M, Scharping N, Heeg M J Exp Med. 2025; 222(2.

PMID: 39841133 PMC: 11753173. DOI: 10.1084/jem.20240776.


Tertiary Lymphoid Structures are Linked to Enhanced Antitumor Immunity and Better Prognosis in Muscle-Invasive Bladder Cancer.

Lin J, Jiang S, Chen B, Du Y, Qin C, Song Y Adv Sci (Weinh). 2024; 12(7):e2410998.

PMID: 39739621 PMC: 11831474. DOI: 10.1002/advs.202410998.


Differential predictive value of resident memory CD8T cell subpopulations in patients with non-small-cell lung cancer treated by immunotherapy.

Paolini L, Tran T, Corgnac S, Villemin J, Wislez M, Arrondeau J J Immunother Cancer. 2024; 12(12.

PMID: 39631852 PMC: 11624836. DOI: 10.1136/jitc-2024-009440.


References
1.
Mackay L, Minnich M, Kragten N, Liao Y, Nota B, Seillet C . Hobit and Blimp1 instruct a universal transcriptional program of tissue residency in lymphocytes. Science. 2016; 352(6284):459-63. DOI: 10.1126/science.aad2035. View

2.
Farber D, Yudanin N, Restifo N . Human memory T cells: generation, compartmentalization and homeostasis. Nat Rev Immunol. 2013; 14(1):24-35. PMC: 4032067. DOI: 10.1038/nri3567. View

3.
Ribas A . Adaptive Immune Resistance: How Cancer Protects from Immune Attack. Cancer Discov. 2015; 5(9):915-9. PMC: 4560619. DOI: 10.1158/2159-8290.CD-15-0563. View

4.
Milner J, Goldrath A . Transcriptional programming of tissue-resident memory CD8 T cells. Curr Opin Immunol. 2018; 51:162-169. PMC: 5943164. DOI: 10.1016/j.coi.2018.03.017. View

5.
Kim H, Song G, Park S, Jung M, Kim M, Kang H . Association Between Expression Level of PD1 by Tumor-Infiltrating CD8 T Cells and Features of Hepatocellular Carcinoma. Gastroenterology. 2018; 155(6):1936-1950.e17. DOI: 10.1053/j.gastro.2018.08.030. View