articleCancer DiscoverySep 27, 2013HYBRID OA

Activation of the PD-1 Pathway Contributes to Immune Escape in EGFR-Driven Lung Tumors

Broad Institute · Brigham and Women's Hospital · +7 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

UNLABELLED: The success in lung cancer therapy with programmed death (PD)-1 blockade suggests that immune escape mechanisms contribute to lung tumor pathogenesis. We identified a correlation between EGF receptor (EGFR) pathway activation and a signature of immunosuppression manifested by upregulation of PD-1, PD-L1, CTL antigen-4 (CTLA-4), and multiple tumor-promoting inflammatory cytokines. We observed decreased CTLs and increased markers of T-cell exhaustion in mouse models of EGFR-driven lung cancer. PD-1 antibody blockade improved the survival of mice with EGFR-driven adenocarcinomas by enhancing effector T-cell function and lowering the levels of tumor-promoting cytokines. Expression of mutant EGFR in…

Citation impact

1,235
total citations
FWCI
37.68
Percentile
100%
References
37
Citations per year

Authors

27

Topics & keywords

Keywords
  • Cancer research
  • Immune system
  • Proinflammatory cytokine
  • Lung cancer
  • PD-L1
  • T cell
  • CTL*
  • Downregulation and upregulation
UN Sustainable Development Goals
  • Good health and well-being
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