• 1. Department of Clinical Pharmacology, Pharmacy Care Center, Chinese PLA General Hospital, Beijing 100853, P. R. China;
  • 2. College of Traditional Chinese Medicine, Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi 030600, P. R. China;
  • 3. Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing 100053, P. R. China;
DONG Xianzhe, Email: dongxianzhe@163.com; HU Yuan, Email: huyuan1980619@126.com
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Objective Through the analysis of gene enrichment in gastric cancer samples, the changes of RNA alternative splicing and related molecular mechanisms were explored.Methods The pathological samples of three cases of gastric cancer patients and adjacent tissues were obtained clinically, and the data were obtained by cell culture, protein quantitative labeling, gene chip detection, high-throughput sequencing, etc. GO enrichment was performed on samples by DAVID and other network software, KEGG pathway analysis yielded relevant information for screening for variable splicing of differential genes.Results A total of 605 genes with individual ENSG IDs consistent with the gene identification of the ENSEMBL database were screened, and the gene levels of cancer tissues and adjacent tissues were compared. There were 411 non-differentiated genes, 119 differentially up-regulated genes, and 75 differentially down-regulated genes. A total of 69 differentially spliced genes were screened out. Functional annotation and pathway analysis revealed that the detection genes were mainly concentrated in molecular metabolic processes, cell migration, extracellular matrix tissue, blood coagulation, cell matrix adhesion, signal transduction, negative apoptosis regulation, angiogenesis, platelet activation, complement system, adipokines signaling pathway, peroxisome, cancer pathway, transforming growth factor (TGF) signaling pathway, axon guidance, cell cycle, etc.Conclusion There are a large number of differentially spliced genes in gastric cancer tissue samples, and the difference in expression due to changes in splice sites may play an important role in the development of gastric cancer.

Citation: WANG Yichen, WANG Jin, YANG Wenshan, LIU Ping, DONG Xianzhe, HU Yuan. Gene chip sequencing and differential expression of abnormal genes in gastric cancer. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2020, 27(7): 790-800. doi: 10.7507/1007-9424.201910023 Copy

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