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  • Title: [Analysis of gene expression profile of G1/S transition in gastric cancer cell cycle].
    Author: Lan B, Liu BY, Zhang J, Wang KK, Chen XH, Zhu ZG.
    Journal: Zhonghua Wei Chang Wai Ke Za Zhi; 2005 May; 8(3):229-33. PubMed ID: 16167235.
    Abstract:
    OBJECTIVE: To detect the variation of gene expression profile of G1/S transition and elucidate the role of related genes regulating cell cycle from G1 to S phase in gastric cancer. METHODS: Nocodazole-thymidine and double thymidine methods were used to synchronize gastric cells at G2/M and G1/S point, cDNA microarray chips was applied to examine the gene expression profile at G1 early and late phase, S early and late phase during the cell cycle, hierarchy analysis was conducted by a professional software package. RESULTS: A total of 2001 genes were detected available, 959 genes appeared to be upregulated or downregulated, including 147 genes upregulated at G1 late phase. These 147 genes are involved in DNA metabolism, transcription and translation,posttranslational modification, ubiquitination, signal transduction etc, which all affected cell cycle from different aspects. CONCLUSION: Complex multiple gene processes, such as DNA metabolism, transcription and translation, posttranslational modification, ubiquitination, signal transduction etc,are implicated in and also essential for G1/S transition during gastric cancer cell cycle, part of these genes are significantly associate with overproliferation in gastric cancer.
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