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Distinct expression and prognostic value of OTU domain-containing proteins in non-small-cell lung cancer.

ABSTRACT: The ubiquitin-proteasome pathway is an important protein degradation regulatory system in cells. This pathway is also a reversible process that is strictly regulated, and the regulation of deubiquitinating enzymes (DUBs) represents an important facet of the process. Ovarian tumor-associated proteases domain-containing proteins (OTUDs), as a subfamily within the DUB family, serve an important role in regulatory mechanisms of several biological processes, through the regulation of gene transcription, cell cycle, immune response, inflammation and tumor growth processes, and may be important in the diagnosis of various diseases and constitute novel drug targets. However, the role of OTUDs in non-small-cell lung cancer (NSCLC) has not been fully elucidated. In the present study, the Oncomine database was used to examine gene expression in NSCLC, and the prognostic value of each gene was analyzed by Kaplan-Meier analysis. The results indicated that high mRNA expression levels of OTUD1, OTUD3, OTUD4 and putative bifunctional UDP-N-acetylglucosamine transferase and deubiquitinase ALG13 were associated with improved prognosis in all NSCLC and adenocarcinoma, but not in squamous cell carcinoma. By contrast, high expression levels of OTUD2 mRNA were associated with poorer overall survival in patients with NSCLC. These data suggested that these OTUD isozymes may be a potential drug target for NSCLC.

SUBMITTER: Deng J

PROVIDER: S-EPMC6781715 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Distinct expression and prognostic value of OTU domain-containing proteins in non-small-cell lung cancer.

Deng Jingjing J Hou Gouxin G Fang Zhixian Z Liu Jialiang J Lv Xiao-Dong XD

Oncology letters 20190919 5

The ubiquitin-proteasome pathway is an important protein degradation regulatory system in cells. This pathway is also a reversible process that is strictly regulated, and the regulation of deubiquitinating enzymes (DUBs) represents an important facet of the process. Ovarian tumor-associated proteases domain-containing proteins (OTUDs), as a subfamily within the DUB family, serve an important role in regulatory mechanisms of several biological processes, through the regulation of gene transcripti ...[more]

PMID: 31612050

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Project description:ImportancePrevious studies have suggested the importance of the baseline derived neutrophil to lymphocyte ratio (dNLR) and lactate dehydrogenase (LDH) level as prognostic markers. The lung immune prognostic index (LIPI) was shown to be associated with progression-free survival (PFS) and overall survival (OS) among patients with metastatic non-small cell lung cancer (mNSCLC) treated with immune checkpoint inhibitors (ICIs) but not cytotoxic chemotherapy (CCT).ObjectiveTo determine whether the LIPI is associated with long-term outcomes in pooled analyses of clinical studies of ICI and targeted therapy (TT) for patients with mNSCLC.Design, setting, and participantsAn exploratory pooled analysis was performed of the LIPI on data from 11 randomized clinical multinational trials evaluating ICIs and TT submitted to the US Food and Drug Administration between January 1, 2013, and December 31, 2017, for 4914 patients with mNSCLC. Lung immune prognostic index scores were calculated based on the dNLR and the LDH level per previous publications to generate good, intermediate, and poor composite scores. Multivariable Cox proportional PFS and OS hazard ratios were generated for the dNLR, the LDH level, age, smoking status, histologic characteristics, and Eastern Cooperative Oncology Group performance score.Main outcomes and measuresOverall survival and PFS and their association with good, intermediate, or poor prognostic LIPI scores.ResultsEleven mNSCLC randomized trials were analyzed, including 3987 patients with available data. In 5 ICI trials comprising 2440 patients, 1368 patients received ICIs and 1072 patients received CCT. In 6 TT trials comprising 1547 patients, 1110 patients received TT and 437 patients received CCT. A good LIPI score was associated with better OS among patients receiving ICIs (hazard ratio, 0.34; 95% CI, 0.28-0.42), TT (hazard ratio, 0.28; 95% CI, 0.21-0.37), and CCT (hazard ratio, 0.49; 95% CI, 0.40-0.60 in ICI trials; hazard ratio, 0.41; 95% CI, 0.27-0.61 in TT trials) than those with poor LIPI scores. Similar findings were observed in terms of PFS (ICIs: hazard ratio, 0.59; 95% CI, 0.48-0.72; TT: hazard ratio, 0.46; 95% CI, 0.37-0.57; and CCT: hazard ratio, 0.56; 95% CI, 0.45-0.68 in ICI trials; hazard ratio, 0.51; 95% CI, 0.38-0.69 in TT trials).Conclusions and relevanceThe baseline LDH level and dNLR are important prognostic biomarkers irrespective of treatment modality for patients with mNSCLC. As further prospective clinical trial information is collected, the role of the LIPI score can be better defined.

Dataset Information

Distinct expression and prognostic value of OTU domain-containing proteins in non-small-cell lung cancer.

Publications

Distinct expression and prognostic value of OTU domain-containing proteins in non-small-cell lung cancer.

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