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Gene expression analysis of pancreatic cystic neoplasm in SV40Tag transgenic mice model

机译:SV40Tag转基因小鼠胰腺囊性肿瘤的基因表达分析

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AIM: To study the gene expression changes in pancreatic cystic neoplasm in SV40Tag transgenic mice model and to provide information about the prevention, clinical diagnosis and therapy of pancreatic cancer. METHODS: Using the pBC-SV40Tag transgenic mice model of pancreatic cystic neoplasm, we studied the gene expression changes by applying high-density microarrays. Validation of part gene expression profiling data was performed using real-time PCR. RESULTS: By using high-density oligonucleotide microarray, of 14113 genes, 453 were increased and 760 decreased in pancreatic cystic neoplasm, including oncogenes, cell-cycle-related genes, signal transductionrelated genes, skeleton-related genes and metabolism-related genes. Among these, we confirmed the changes in Igf, Shh and Wnt signal pathways with real-time PCR. The results of real-time PCR showed similar expression changes in gene chip. CONCLUSION: all the altered expression genes are associated with cell cycle, DNA damage and repair, signal pathway, and metabolism. SV40Tag may cooperate with several proteins in promoting tumorigenesis.
机译:目的:研究SV40Tag转基因小鼠模型中胰腺囊性肿瘤的基因表达变化,为胰腺癌的预防,临床诊断和治疗提供信息。方法:使用pBC-SV40Tag转基因小鼠胰腺囊性肿瘤模型,我们通过应用高密度微阵列研究了基因表达的变化。使用实时PCR进行部分基因表达谱数据的验证。结果:使用高密度寡核苷酸微阵列,胰腺囊性肿瘤中有14113个基因,其中癌基因,细胞周期相关基因,信号转导相关基因,骨骼相关基因和代谢相关基因增加,减少了453个,减少了760个。其中,我们通过实时PCR证实了Igf,Shh和Wnt信号通路的变化。实时PCR的结果显示基因芯片中类似的表达变化。结论:所有改变的表达基因均与细胞周期,DNA损伤和修复,信号通路和代谢有关。 SV40Tag可能与几种蛋白质协同促进肿瘤发生。

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