Zhi Wang1,2, Chengxue Dang1, Rong Yan1, Hao Zhang1, Dawei Yuan1, Kang Li1. 1. First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710061, China. 2. Shaanxi Tuberculosis Hospital, Xi'an 710100, China.
Abstract
OBJECTIVE: To screen the genes related to cell cycle under regulation by KIAA0101 in gastric cancer. METHODS: RT-PCR was used to detect the expression level of KIAA0101 gene in gastric cancer tissue and paired adjacent tissues. GO function enrichment analysis and KEGG pathway enrichment analysis were carried out using DAVID database. KEGG was used to map the pathways and the corresponding genes were analyzed. The list of genes associated with the KIAA0101 expression pattern was imported into TCGA cBioPortal to analyze the relationship between the interacting genes and generate a genetic topology map. The candidate genes were screened by RT-PCR. RESULTS: The expression level of KIAA0101 mRNA was significantly higher in cancer tissues than in paired adjacent tissues (1.104 ± 0.379 vs 0.421 ± 0.172; P=0.0179). The system screened genes related with KIAA0101 from 478 tissues by pooled analysis of the expression intensity of all the gene probes. GO function analysis showed that the differential genes were mainly enriched in protein phosphorylation, RNA processing, cell cycle, DNA metabolism, protein transport, acetylation, apoptosis, proteolysis, and redox. The changes in the expression level of KIAA0101 mainly affect the gastric cancer-related pathways including cell cycle, spliceosome, DNA replication, and p53 signal transduction pathway. KEGG pathway maps and gene topology maps showed that the genes related to KIAA0101 (such as BUB1B, MAD2L1, CDC45, CDK1, CCNE1 and CCNB2) were also related to cell cycle. RT-PCR results confirmed significant increments of the expression levels of BUB1B, MAD2L, CDK1, CCNE1, and CCNB2 mRNA in gastric cancer tissues as compared with the paired adjacent gastric tissues (P < 0.05), but CDC45 mRNA did not show significant differential expression in gastric cancer tissues (P > 0.05). CONCLUSIONS: KIAA0101 may affect cell cycle by regulating the expression of BUB1B, MAD2L1, CDK1, CCNE1 and CCNB2, and this finding may provide evidence for understanding how KIAA0101 affects cell cycle and for screening of tumor markers and selection of drug targets.
OBJECTIVE: To screen the genes related to cell cycle under regulation by KIAA0101 in gastric cancer. METHODS: RT-PCR was used to detect the expression level of KIAA0101 gene in gastric cancer tissue and paired adjacent tissues. GO function enrichment analysis and KEGG pathway enrichment analysis were carried out using DAVID database. KEGG was used to map the pathways and the corresponding genes were analyzed. The list of genes associated with the KIAA0101 expression pattern was imported into TCGA cBioPortal to analyze the relationship between the interacting genes and generate a genetic topology map. The candidate genes were screened by RT-PCR. RESULTS: The expression level of KIAA0101 mRNA was significantly higher in cancer tissues than in paired adjacent tissues (1.104 ± 0.379 vs 0.421 ± 0.172; P=0.0179). The system screened genes related with KIAA0101 from 478 tissues by pooled analysis of the expression intensity of all the gene probes. GO function analysis showed that the differential genes were mainly enriched in protein phosphorylation, RNA processing, cell cycle, DNA metabolism, protein transport, acetylation, apoptosis, proteolysis, and redox. The changes in the expression level of KIAA0101 mainly affect the gastric cancer-related pathways including cell cycle, spliceosome, DNA replication, and p53 signal transduction pathway. KEGG pathway maps and gene topology maps showed that the genes related to KIAA0101 (such as BUB1B, MAD2L1, CDC45, CDK1, CCNE1 and CCNB2) were also related to cell cycle. RT-PCR results confirmed significant increments of the expression levels of BUB1B, MAD2L, CDK1, CCNE1, and CCNB2 mRNA in gastric cancer tissues as compared with the paired adjacent gastric tissues (P < 0.05), but CDC45 mRNA did not show significant differential expression in gastric cancer tissues (P > 0.05). CONCLUSIONS:KIAA0101 may affect cell cycle by regulating the expression of BUB1B, MAD2L1, CDK1, CCNE1 and CCNB2, and this finding may provide evidence for understanding how KIAA0101 affects cell cycle and for screening of tumor markers and selection of drug targets.
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