To screen the effective software for analysing gene interactions from Kashin-Beck disease genome profiling pathway and network, according to the tool of GeneMANIA
INTERNATIONAL JOURNAL OF DATA MINING AND BIOINFORMATICS
Authors: Wang, Sen; Wang, Weizhuo; Zhao, Junjie; Zhang, Feng; He, Shulan; Guo, Xiong
Abstract
In order to screen the more effective software for the pathway and network analysis of Kashin-Beck disease, gene microarrays, TranscriptomeBrowser, MetaCore and GeneMANIA were used for analysis. Three significant chondrocytic pathways and one network were screened by TranscriptomeBrowser; one significant pathway and one network were identified by MetaCore. BAX, APAF1, CASP6, BCL2, VEGF, SOCS3, BAK, TGFBI, TNFAIP6, TNFRSF11B and THBS1 were significant genes associated with the biological function of chondrocyte or cartilage involved in the TranscriptomeBrowser or MetaCore results. The interactions between the significant genes and their adjacent genes were searched and classified in GeneMANIA. In pathway analysis results, TranscriptomeBrowser is superior to get the interaction of pathway and co-expression compared with MetaCore; MetaCore is superior to get the interaction of physical interaction compared with TranscriptomeBrowser. In network analysis results, TranscriptomeBrowser contains more interaction message of co-localisation, MetaCore contains more interaction message of co-expression.
TGFBI expression is an independent predictor of survival in adjuvant-treated lung squamous cell carcinoma patients
BRITISH JOURNAL OF CANCER
Authors: Pajares, M. J.; Agorreta, J.; Salvo, E.; Behrens, C.; Wistuba, I. I.; Montuenga, L. M.; Pio, R.; Rouzaut, A.
Abstract
Background: Transforming growth factor beta-induced protein (TGFBI) is a secreted protein that mediates cell anchoring to the extracellular matrix. This protein is downregulated in lung cancer, and when overexpressed, contributes to apoptotic cell death. Using a small series of stage IV non-small cell lung cancer (NSCLC) patients, we previously suggested the usefulness of TGFBI as a prognostic and predictive factor in chemotherapy-treated late-stage NSCLC. In order to validate and extend these results, we broaden the analysis and studied TGFBI expression in a large series of samples obtained from stage I-IV NSCLC patients. Methods: TGFBI expression was assessed by immunohistochemistry in 364 completely resected primary NSCLC samples: 242 adenocarcinomas (ADCs) and 122 squamous cell carcinomas (SCCs). Kaplan-Meier curves, log-rank tests and the Cox proportional hazards model were used to analyse the association between TGFBI expression and survival. Results: High TGFBI levels were associated with longer overall survival (OS, P < 0.001) and progression-free survival (PFS, P < 0.001) in SCC patients who received adjuvant platinium-based chemotherapy. Moreover, multivariate analysis demonstrated that high TGFBI expression is an independent predictor of better survival in patients (OS: P = 0.030 and PFS: P = 0.026). Conclusions: TGFBI may be useful for the identification of a subset of NSCLC who may benefit from adjuvant therapy.