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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/16807

    Title: Suppression of the invasion and migration of cancer cells by SERPINB family genes and their derived peptides
    Authors: 鄒瑞煌;Chou, Ruey-Hwang
    Contributors: 生物科技學系
    Keywords: SERPINB family;cancer;migration;invasion
    Date: 2012-01
    Issue Date: 2012-11-23 17:17:14 (UTC+8)
    Abstract: Apart from SERPINB2 and SERPINB5, the roles of the remaining 13 members of the human SERPINB family in cancer metastasis are still unknown. In the present study, we demonstrated that most of these genes are differentially expressed in tumor tissues compared to matched normal tissues from lung or breast cancer patients. Overexpression of each SERPINB gene effectively suppressed the invasiveness and motility of malignant cancer cells. Among all of the genes, the SERPINB1, SERPINB5 and SERPINB7 genes were more potent, and the inhibitory effect was further enhanced by co-expression of any two of them. In addition, single treatment of the synthetic peptides corresponding to the P5-P5' sequences of the reactive center loop (RCL) of SERPINB1, SERPINB5 or SERPINB7 markedly suppressed the invasive and migratory properties of the cancer cells in a dose-dependent manner. More significantly, combination treatment of these peptides in cancer cells further improved the suppressive effect by 20-40%. Here, we determined the expression of all SERPINB family members in lung and breast cancer patients, and identified those members with potent inhibitory ability toward invasion and migration, and designed RCL-derived peptides to suppress the malignancy of cancer cells. Forced re-expression of these anti-invasive SERPINB genes or application of the SERPINB RCL-peptides may provide a reasonable strategy against lethal cancer metastasis.
    Appears in Collections:[生物科技學系] 期刊論文

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