Reversing T-cell exhaustion in cancer: lessons learned from PD-1/PD-L1 immune checkpoint blockade

N Budimir, GD Thomas, JS Dolina… - Cancer immunology …, 2022 - AACR
… studies revealing phenotypic and functional heterogeneity of exhausted CD8 + T … exhausted
PD-1 + CD8 + T-cell population is not uniform and can be divided into PD-1 lo and PD-1

[HTML][HTML] PD-1 blockade restores helper activity of tumor-infiltrating, exhausted PD-1hiCD39+ CD4 T cells

CC Balança, A Salvioni, CM Scarlata, M Michelas… - JCI insight, 2021 - ncbi.nlm.nih.gov
… These data demonstrate the stability of the exhausted PD-1 hi CD39 + CD4 Tconv
phenotype and suggest that this subset encompasses tumor Ag–specific CD4 T cells. Ex vivo …

Coexpression of Tim-3 and PD-1 identifies a CD8+ T-cell exhaustion phenotype in mice with disseminated acute myelogenous leukemia

Q Zhou, ME Munger, RG Veenstra… - Blood, The Journal …, 2011 - ashpublications.org
… a unique phenotype of exhausted T cells in mice with advanced acute myelogenous leukemia
(AML). This phenotype is characterized by the coexpression of Tim-3 and PD-1 on CD8 + …

Liver-infiltrating lymphocytes in chronic human hepatitis C virus infection display an exhausted phenotype with high levels of PD-1 and low levels of CD127 …

H Radziewicz, CC Ibegbu, ML Fernandez… - Journal of …, 2007 - Am Soc Microbiol
… local antiviral T-cell phenotype. Further, we show that blockade of the PD-1/PD-L1 interaction
increases the proliferative capacity of the phenotypically exhausted HCV-specific T cells. …

Clonal replacement of tumor-specific T cells following PD-1 blockade

KE Yost, AT Satpathy, DK Wells, Y Qi, C Wang… - Nature medicine, 2019 - nature.com
… We found that for both memory and exhausted phenotypes, persistent clones had a
significantly higher TCF7 + signature pre-treatment compared to clones that contracted (Fig. 3f). …

PD-1 blockade therapy promotes infiltration of tumor-attacking exhausted T cell clonotypes

J Nagasaki, T Inozume, N Sax, R Ariyasu, M Ishikawa… - Cell reports, 2022 - cell.com
… We propose that tumor-infiltrating skewed T cell clonotypes with an exhausted phenotype
directly attack tumor cells and that PD-1 blockade can promote infiltration of such T ex …

Reverted exhaustion phenotype of circulating lymphocytes as immune correlate of anti-PD1 first-line treatment in Hodgkin lymphoma

MA Garcia-Marquez, M Thelen, S Reinke, D Keller… - Leukemia, 2022 - nature.com
… patients with early excellent response to anti-PD1 therapy. In summary, an initially exhausted
lymphocyte phenotype rapidly reverted during anti-PD1 1st-line treatment. The frequently …

Increased PD-1+ Tim-3+ exhausted T cells in bone marrow may influence the clinical outcome of patients with AML

J Tan, Z Yu, J Huang, Y Chen, S Huang, D Yao, L Xu… - Biomarker …, 2020 - Springer
… Based on previous findings of increased numbers of PD-1+ T cells with the exhaustion
phenotype in PB from AML patients [20], we further characterized the influence of the AML BM …

PD-1+ CD8+ T cells are exhausted in tumours and functional in draining lymph nodes of colorectal cancer patients

X Wu, H Zhang, Q Xing, J Cui, J Li, Y Li, Y Tan… - British journal of …, 2014 - nature.com
PD-1 + CD8 + T cells exhibit an exhausted phenotype as defined by impairment of proliferation,
cytokine production and cytotoxicity. Meanwhile, PD-L1 is expressed in several different …

PD-1-expressing SARS-CoV-2-specific CD8+ T cells are not exhausted, but functional in patients with COVID-19

MS Rha, HW Jeong, JH Ko, SJ Choi, IH Seo, JS Lee… - Immunity, 2021 - cell.com
Memory T cell responses have been demonstrated in COVID-19 convalescents, but ex vivo
phenotypes of SARS-CoV-2-specific T cells have been unclear. We detected SARS-CoV-2-…