[Spindle Assembly Checkpoint Complex-related Genes TTK and MAD2L1 Are Over-expressed in Lung Adenocarcinoma: a Big Data and Bioinformatics Analysis]

Overview

Journal Nan Fang Yi Ke Da Xue Xue Bao

Specialty General Medicine

Date 2020 Oct 29

PMID 33118511

Citations 2

Authors

Zhu Liu

Zeqin Guo

Lili Long

Yanpei Zhang

Yuwen Lu

Dehua Wu

Zhongyi Dong

Affiliations

Soon will be listed here.

Abstract

Objective: To screen the key genes related to the prognosis of lung adenocarcinoma through big data analysis and explore their clinical value and potential mechanism.

Methods: We analyzed GSE18842, GSE27262, and GSE33532 gene expression profile data obtained from the Gene Expression Omnibus (GEO). Bioinformatics methods were used to screen the differentially expressed genes in lung adenocarcinoma tissues and KEGG and GO enrichment analysis was performed, followed by PPI interaction network analysis, module analysis, differential expression analysis, and prognosis analysis. The expressions of MAD2L1 and TTK by immunohistochemistry were verified in 35 non-small cell lung cancer specimens and paired adjacent tissues.

Results: We identified a total of 256 genes that showed significant differential expressions in lung adenocarcinoma, including 66 up-regulated and 190 down-regulated genes. Thirty-two up-regulated core genes were screened by functional analysis, and among them 29 were shown to significantly correlate with a poor prognosis of patients with lung adenocarcinoma. All the 29 genes were highly expressed in lung adenocarcinoma tissues compared with normal lung tissues and were mainly enriched in cell cycle pathways. Seven of these key genes were closely related to the spindle assembly checkpoint (SAC) complex and responsible for regulating cell behavior in G2/M phase. We selected SAC-related proteins TTK and MAD2L1 to test their expressions in clinical tumor samples, and detected their overexpression in lung adenocarcinoma tissues as compared with the adjacent tissues.

Conclusions: Seven SAC complex-related genes, including TTK and MAD2L1, are overexpressed in lung adenocarcinoma tissues with close correlation with the prognosis of the patients.

Citing Articles

[Progress in the Study of Spindle Assembly Checkpoint in Lung Cancer].

Qin X, Zhang Y, Yu H, Ma L Zhongguo Fei Ai Za Zhi. 2023; 26(4):310-318.

PMID: 37183646 PMC: 10186262. DOI: 10.3779/j.issn.1009-3419.2023.101.13.

Comprehensive analysis of gene expression profiles to identify differential prognostic factors of primary and metastatic breast cancer.

Albogami S Saudi J Biol Sci. 2022; 29(7):103318.

PMID: 35677896 PMC: 9168623. DOI: 10.1016/j.sjbs.2022.103318.

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