Abstract:
BACKGROUND:The immune checkpoint proteins programmed death-1/ligand (PD-1/PD-L1) play a critical role in immune escape of tumor cells. In models of epidermal growth factor receptor (EGFR)-driven non-small-cell lung cancer (NSCLC), EGFR signal upregulates PD-1/PD-L1. However, data on the clinical significance of PD1/PD-L1 expression in patients with the subtype of NSCLC carrying EGFR mutations remain limited. MATERIALS AND METHODS:Immunohistochemistry was performed to evaluate the expression of PD-1, PD-L1, and CD4+ and CD8+ tumor-infiltrating T lymphocytes (TILs). RESULTS:In a cohort of 56 patients, PD-L1 and PD-1 was positive in 53.6% and 32.1% of tumor specimens, respectively. PD-L1(+) patients had a significantly greater disease-control rate (P = .004), in association with longer progression-free survival (P = .001) after EGFR-tyrosine kinase inhibitor (TKI) therapy and overall survival (P = .004), and no correlation between PD-1 positivity and clinical outcomes was observed. PD-L1 expression was not significantly associated with either clinicopathologic features or TILs. CONCLUSIONS:These findings suggest that this subtype of EGFR mutation-positive NSCLC is highly eligible for PD-1/PD-L1 immunotherapy. PD-L1 might represent a favorable biomarker candidate for the response to EGFR-TKIs and outcomes of these patients with NSCLC.
journal_name
Clin Lung Cancerjournal_title
Clinical lung cancerauthors
Lin C,Chen X,Li M,Liu J,Qi X,Yang W,Zhang H,Cai Z,Dai Y,Ouyang Xdoi
10.1016/j.cllc.2015.02.002subject
Has Abstractpub_date
2015-09-01 00:00:00pages
e25-35issue
5eissn
1525-7304issn
1938-0690pii
S1525-7304(15)00055-8journal_volume
16pub_type
杂志文章abstract::The Lung Cancer Disease Site Group (DSG) of the Cancer Care Ontario Practice Guidelines Initiative first met in January of 1994. Included in the membership were three pathologists who, with the other members of the DSG, felt that a useful contribution to the work of the group would be a recommendation on standardized ...
journal_title:Clinical lung cancer
pub_type: 杂志文章
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更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:The optimal treatment of locally advanced non-small-cell lung cancer (NSCLC) remains controversial. We hypothesized that using a trimodality approach in selected patients with stage IIIA/IIIB disease would be both feasible and efficacious with reasonable toxicity. PATIENTS/METHODS:We enrolled 13 patients wi...
journal_title:Clinical lung cancer
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doi:10.1016/j.cllc.2011.06.003
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journal_title:Clinical lung cancer
pub_type: 杂志文章,评审
doi:10.1016/j.cllc.2016.07.004
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.3816/clc.2002.s.003
更新日期:2002-03-01 00:00:00
abstract::Conducting research in patients with non-small-cell lung cancer (NSCLC) is challenging, primarily because of low patient accrual rates resulting from patient-, physician-, protocol-, and healthcare system-related barriers. The Coalition of Cancer Cooperative Groups convened a 1-day program entitled Addressing the Curr...
journal_title:Clinical lung cancer
pub_type: 杂志文章,评审
doi:10.3816/CLC.2008.n.033
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journal_title:Clinical lung cancer
pub_type: 杂志文章,随机对照试验
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更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Gastric acid-suppressing medications (AS), namely, proton pump inhibitors and histamine-2 receptor antagonists, increase gastric pH, which may reduce the absorption of the epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors-erlotinib and gefitinib. PATIENTS AND METHODS:From 2008 to 2011, 130 ...
journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2016.01.006
更新日期:2016-09-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.3816/CLC.2008.n.053
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2016.11.010
更新日期:2017-07-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cllc.2015.05.009
更新日期:2015-11-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2013.12.011
更新日期:2014-07-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2016.11.005
更新日期:2017-07-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2020.09.017
更新日期:2020-10-14 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2020.02.010
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND:Little is known about the difference between black and non-black patients with epidermal growth factor receptor (EGFR)-mutated non-small-cell lung cancer (NSCLC), particularly regarding survival. We thus characterized the EGFR expression profile, clinical characteristics, and survival outcome in these patien...
journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2019.07.003
更新日期:2020-03-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2015.09.005
更新日期:2016-05-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2018.10.010
更新日期:2019-03-01 00:00:00
abstract::There is a high risk of relapse after curative-intent resection for even early-stage non-small cell lung cancer (NSCLC), and thus adjuvant chemotherapy has been explored with the goal of eliminating occult metastases and consequently reducing the risk of recurrence. Although adjuvant chemotherapy confers a survival ad...
journal_title:Clinical lung cancer
pub_type: 杂志文章,评审
doi:10.1016/j.cllc.2011.06.002
更新日期:2011-09-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2017.01.008
更新日期:2017-07-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cllc.2019.07.006
更新日期:2019-11-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cllc.2017.06.002
更新日期:2018-01-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章,评审
doi:10.3816/CLC.2006.n.010
更新日期:2006-03-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2020.01.013
更新日期:2020-07-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2016.11.018
更新日期:2017-07-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2013.11.001
更新日期:2014-03-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2016.07.009
更新日期:2017-03-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章,评审
doi:10.3816/clc.2008.s.003
更新日期:2008-02-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章
doi:10.1016/j.cllc.2013.05.001
更新日期:2013-11-01 00:00:00
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journal_title:Clinical lung cancer
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cllc.2018.06.005
更新日期:2018-09-01 00:00:00