Identification of GSN and LAMC2 as Key Prognostic Genes of Bladder Cancer by Integrated Bioinformatics Analysis

Cancers

CharlesC.N. Wang¹  Jia-Hua Cai¹  Jia-Lian Yang²  Chin-Chuan Hung²  Che-Yi Chou³  Yu-Chao Lin⁴ 

[1] Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan;Department of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan;Division of Nephrology, Asia University Hospital, Taichung, Taiwan;Graduate Institute of Clinical Medical Science, China Medical University, Taichung 404, Taiwan;

关键词: bladder cancer;    weighted gene coexpression network analysis;    prognosis;    GEO;    TCGA;    HPA;   

DOI  :  10.3390/cancers12071809

来源: DOAJ

【 摘 要 】

Bladder cancer is a common malignancy with mechanisms of pathogenesis and progression. This study aimed to identify the prognostic hub genes, which are the central modulators to regulate the progression and proliferation in the specific subtype of bladder cancer. The identification of the candidate hub gene was performed by weighted gene co-expression network analysis to construct a free-scale gene co-expression network. The gene expression profile of GSE97768 from the Gene Expression Omnibus database was used. The association between prognosis and hub gene was evaluated by The Cancer Genome Atlas database. Four gene-expression modules were significantly related to bladder cancer disease: the red module (human adenocarcinoma lymph node metastasis), the darkturquioise module (grade 2 carcinoma), the lightgreen module (grade 3 carcinoma), and the royalblue module (transitional cell carcinoma lymphatic metastasis). Based on betweenness centrality and survival analysis, we identified laminin subunit gamma-2 (LAMC2) in the grade 2 carcinoma, gelsolin (GSN) in the grade 3 carcinoma, and homeodomain-interacting protein kinase 2 (HIPK2) in the transitional cell carcinoma lymphatic metastasis. Subsequently, the protein levels of LAMC2 and GSN were respectively down-regulated and up-regulated in tumor tissue with the Human Protein Atlas (HPA) database. Our results suggested that LAMC2 and GSN are the central modulators to transfer information in the specific subtype of the disease.

【 授权许可】

Unknown