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      Integrin αvβ3-mediated transcriptional regulation of TIMP-1 in a human ovarian cancer cell line

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      https://www.riss.kr/link?id=A107714102

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      We have previously reported that a disintegrin inhibits solid tumor growth and metastasis in mouse model [I.C. Kang, Y.D. Lee, D.S. Kim, A novel disintegrin salmosin inhibits tumor angiogenesis, Cancer Res. 59 (1999) 3754-3760; S.I. Kim, K.S. Kim, H.S. Kim, D.S. Kim, Y. Jang, K.H. Chung, Y.S. Park, Inhibitory effect of the salmosin gene transferred by cationic liposomes on the progression of B16BL6 tumors, Cancer Res. 63 (2003) 6458-462]. In this study, we have investigated the modulatory effect of a disintegrin, saxatilin, on the balance between MMP-9 and tissue inhibitor of metalloproteinase-1 (TIMP-1) in human ovarian cancer cell line MDAH 2774. Functional mechanism of the disintegrin-mediated transcriptional regulation of MMP-9 and TIMP-1 was examined in the ovarian cancer cell line. Saxatilin strongly induced TIMP-1 expression in dose- and time-dependent manners, while the disintegrin suppressed MMP-9 expression. Further analyses clearly indicated that interaction of the disintegrin and integrin αvβ3 results in the TIMP-1 promoter activation via c-fos to suppress TNF-α-induced cancer cell invasion. These results demonstrate that integrin αvβ3-mediated transcriptional regulation of MMP-9 and TIMP-1 is critical for suppressing the ovarian cancer cell invasion.
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      We have previously reported that a disintegrin inhibits solid tumor growth and metastasis in mouse model [I.C. Kang, Y.D. Lee, D.S. Kim, A novel disintegrin salmosin inhibits tumor angiogenesis, Cancer Res. 59 (1999) 3754-3760; S.I. Kim, K.S. Kim, H.S...

      We have previously reported that a disintegrin inhibits solid tumor growth and metastasis in mouse model [I.C. Kang, Y.D. Lee, D.S. Kim, A novel disintegrin salmosin inhibits tumor angiogenesis, Cancer Res. 59 (1999) 3754-3760; S.I. Kim, K.S. Kim, H.S. Kim, D.S. Kim, Y. Jang, K.H. Chung, Y.S. Park, Inhibitory effect of the salmosin gene transferred by cationic liposomes on the progression of B16BL6 tumors, Cancer Res. 63 (2003) 6458-462]. In this study, we have investigated the modulatory effect of a disintegrin, saxatilin, on the balance between MMP-9 and tissue inhibitor of metalloproteinase-1 (TIMP-1) in human ovarian cancer cell line MDAH 2774. Functional mechanism of the disintegrin-mediated transcriptional regulation of MMP-9 and TIMP-1 was examined in the ovarian cancer cell line. Saxatilin strongly induced TIMP-1 expression in dose- and time-dependent manners, while the disintegrin suppressed MMP-9 expression. Further analyses clearly indicated that interaction of the disintegrin and integrin αvβ3 results in the TIMP-1 promoter activation via c-fos to suppress TNF-α-induced cancer cell invasion. These results demonstrate that integrin αvβ3-mediated transcriptional regulation of MMP-9 and TIMP-1 is critical for suppressing the ovarian cancer cell invasion.

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