The Effect of Migration and Invasion by Carboxy Terminal Activating Region 3 of LMP1 in Nasopharyngeal Carcinoma Stem Cell
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Cancer Research Institute, University of Southern China

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This work was supported by grants from the Hunan Provincial Natural Science Committee and Hengyang City Government Unification Foundation of China (12JJ9033), the Hunan Provincial Natural Science Foundation of China (13JJ3079), the Hunan Provincial Science and Technology Department Foundation of China (2013SK3118, 2014SK3081), the Hunan Provincial Groundbreaking Platform Open Fund of University of China (10K052, 12K094, 13K083), the Hunan Provincial Education Department Foundation of China (11C1112, 12C0340), the Hunan Provincial Health Brueau Department Foundation of China (B2013-048), the Hunan Provincial Postgraduate Groundbreaking Scientific Research Foundation of China (CX2010B380), the Postgraduate Groundbreaking Scientific Research Foundation of University of Southern China of China (29), the Hunan Provincial Hengyang city Science and technology Department Key Foundation of China (2013KJ12, 2013KJ28),...

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    Abstract:

    To investigate mechanism of migration and invasion effected by carboxyl terminal activating region 3 (CTAR3) of Epstein-Barr virus encoded latent membrane protein 1(LMP1) in nasopharyngeal carcinoma stem cell SP18 cells, the SP18 cell of stable expressed LMP1 and deletion mutant type LMP1 (LMP1△232-351) were established (SP18-LMP1 and SP18-LMP1△252-351). The effect of LMP1-CTAR3 deletion mutant for cellular proliferation, migration and invasion were observed in SP18 cells. The differential expression genes between SP18-LMP1 and SP18-LMP1△252-351 cells were analyzed by cDNA chips, and the expression levels of partial identified genes were verified by fluorescent Real-time quantitative RT-PCR. The relation of differential expression genes were analyzed by bioinformatics. The results showed: (1) The ability of LMP1△232-351 promoting SP18 cell proliferation, migration and invasion was obviously decreased to compare with wild type LMP1(n=3, P < 0.05). (2) 18 genes, 13 up- and 5 down-regulated ones, of LMP1-CTAR3 mediated regulation with migration and invasion were identified from in SP18 cell lines. The differential expression of partial identified genes was similar with cDNA chips separated ones and confirmed by fluorescent Real-time quantitative RT-PCR. (3) 13 differential expression genes can be cross-talk, and among FN1, MMP14, ITGA2, THBS1, IL1B and IL6 genes were frequently correlation. These results suggested that LMP1-CTAR3 probably regulates the expression of FN1, MMP14, ITGA2, THBS1, IL1B and IL6 genes to induce and promote migration and invasion of nasopharyngeal carcinoma stem cell SP18 cell.

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XIAO Juan, ZHANG Zhi-Wei, WU Shi-Hua, LIU Zhong-Yuan, TANG Wei, ZHOU Qiang, LEI Ming-Sheng, YANG Dai-Shui. The Effect of Migration and Invasion by Carboxy Terminal Activating Region 3 of LMP1 in Nasopharyngeal Carcinoma Stem Cell[J]. Progress in Biochemistry and Biophysics,2015,42(1):65-72

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History
  • Received:June 19,2014
  • Revised:August 14,2014
  • Accepted:August 20,2014
  • Online: January 19,2015
  • Published: January 20,2015