Dataset Information

[Progress on the Study of PD-L1 Detection Methods in Non-small Cell Lung Cancer].

ABSTRACT: PD-1/PD-L1 inhibitors play an important role in the first-line and second-line treatment of non-small cell lung cancer (NSCLC), indicating a new treatment strategy of NSCLC. Completed clinical trials have shown that effective detection of PD-L1 expression is the key to the use of immunosuppressive agents. However, the gold standard for PD-L1 detection has still lacked. In recent years, immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) have been continuously innovated, which accounts for good prospect in PD-L1 detection. The research progress of PD-L1 detection methods in NSCLC is summarized in this review.?.

SUBMITTER: Guo X

PROVIDER: S-EPMC6348155 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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[Progress on the Study of PD-L1 Detection Methods in Non-small Cell Lung Cancer].

Guo Xuejing X Cao He H Zhou Jianya J Zhou Jianying J

Zhongguo fei ai za zhi = Chinese journal of lung cancer 20190101 1

PD-1/PD-L1 inhibitors play an important role in the first-line and second-line treatment of non-small cell lung cancer (NSCLC), indicating a new treatment strategy of NSCLC. Completed clinical trials have shown that effective detection of PD-L1 expression is the key to the use of immunosuppressive agents. However, the gold standard for PD-L1 detection has still lacked. In recent years, immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) have been continuously innovated, whic ...[more]

PMID: 30674392

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Project description:BackgroundProgrammed cell death ligand-1 (PD-L1) and ligand-2 (PD-L2) interaction with programmed cell death protein-1 (PD-1) represent an immune-inhibiting checkpoint mediating immune evasion and is, accordingly, an important target for blockade-based immunotherapy in cancer. In non-small-cell lung cancer (NSCLC), improved understanding of PD-1 checkpoint blockade-responsive biology and identification of biomarkers for prediction of a clinical response to immunotherapy is warranted. Thus, in the present study, we systematically described PD-L1 and PD-L2 expression correlated genes in NSCLC.MethodsWe performed comparative retrospective analyses to identify PD-L1 and PD-L2 mRNA expression correlated genes in NSCLC. For this, we examined available datasets from the cancer cell line encyclopedia (CCLE) project lung non-small-cell (Lung_NSC) and the cancer genome atlas (TCGA) projects lung adenocarcinoma (LUAD) and squamous cell carcinoma (LUSC).ResultsAnalysis of the CCLE dataset Lung_NSC identified expression correlation between PD-L1 and PD-L2. Moreover, we identified expression correlation between 489 genes and PD-L1, 191 genes and PD-L2, and 111 genes for both. PD-L1 and PD-L2 also expression correlated in TCGA datasets LUAD and LUSC. In LUAD, we identified expression correlation between 257 genes and PD-L1, 914 genes and PD-L2, and 211 genes for both. In LUSC, we identified expression correlation between 26 genes and PD-L1, 326 genes and PD-L2, and 13 genes for both. Only a few genes expression correlated with PD-L1 and PD-L2 across the CCLE and TCGA datasets. Expression of Interferon signaling-involved genes converged in particular with the expression correlated genes for PD-L1 in Lung_NSC, for PD-L2 in LUSC, and for both PD-L1 and PD-L2 in LUAD. In LUSC, PD-L1, and to a lesser extent PD-L2, expression correlated with chromosome 9p24 localized genes, indicating a chromosome 9p24 topologically associated domain as an important driver of in particular LUSC PD-L1 expression. Expression correlation analyses of the PD-L1 and PD-L2 receptors programmed cell death protein-1 (PD-1), Cluster of differentiation 80 (CD80), and Repulsive guidance molecule B (RGMB) showed that PD-1 and CD80 expression correlated with both PD-L1 and PD-L2 in LUAD. CD80 expression correlated with PD-L2 in LUSC.ConclusionsWe present gene signatures associated with PD-L1 and PD-L2 mRNA expression in NSCLC which could possess importance in relation to understand PD-1 checkpoint blockade-responsive biology and development of gene signature based biomarkers for predicting clinical responses to immunotherapy.

Dataset Information

[Progress on the Study of PD-L1 Detection Methods in Non-small Cell Lung Cancer].

Publications

[Progress on the Study of PD-L1 Detection Methods in Non-small Cell Lung Cancer].

Similar Datasets

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