2018
DOI: 10.1164/rccm.201704-0795oc
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Chronic Obstructive Pulmonary Disease Alters Immune Cell Composition and Immune Checkpoint Inhibitor Efficacy in Non–Small Cell Lung Cancer

Abstract: In patients with COPD, Th1 cell populations were expanded in both lung and tumor microenvironments, and the presence of COPD was associated with longer progression-free intervals in patients treated with ICIs. This has implications for understanding the immune mediators of COPD and developing novel therapies for NSCLC.

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Cited by 93 publications
(155 citation statements)
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“…T‐helper cell type 1 (Th1) differentiation of lymphocytes increases in the tumor microenvironment of patients with NSCLC and COPD, which is in line with COPD pathogenesis. However, analyses of fresh tumor samples showed greater exhaustion of CD8+ tumor‐infiltrating lymphocytes (TILs) in patients with COPD . Exhausted T cells show a dysfunctional tumor‐specific immune response, with reduced cytokine production and decreased survival with increased expression of inhibitory receptors .…”
Section: Discussionmentioning
confidence: 74%
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“…T‐helper cell type 1 (Th1) differentiation of lymphocytes increases in the tumor microenvironment of patients with NSCLC and COPD, which is in line with COPD pathogenesis. However, analyses of fresh tumor samples showed greater exhaustion of CD8+ tumor‐infiltrating lymphocytes (TILs) in patients with COPD . Exhausted T cells show a dysfunctional tumor‐specific immune response, with reduced cytokine production and decreased survival with increased expression of inhibitory receptors .…”
Section: Discussionmentioning
confidence: 74%
“…Finally, we lacked data regarding the immune profile or tumor mutational burden (TMB) of the patients who received an ICI. Unfortunately, this limitation is shared by previous studies, due to the scarcity of fresh lung tissue from patients who received an ICI . The potential mechanism underlying increased TIL in patients with COPD could be related to higher TMB of NSCLC, developing in the context of COPD, given the better response to ICI in patients with a higher TMB (particularly in those with smoking‐associated lung cancer) .…”
Section: Discussionmentioning
confidence: 98%
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