Mechanisms for SU5416 as a radiosensitizer of endothelial cells

  • Authors:
    • Eun Ho Kim
    • Mi-Sook Kim
    • Youn Kyoung Jeong
    • Ilsung Cho
    • Seung Hoon You
    • Sung Ho Cho
    • Hanna Lee
    • Won-Gyun Jung
    • Hag Dong Kim
    • Joon Kim
  • View Affiliations

  • Published online on: August 21, 2015     https://doi.org/10.3892/ijo.2015.3127
  • Pages: 1440-1450
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Abstract

Endothelial cells (ECs), that comprise the tumor vasculature, are critical targets for anticancer radiotherapy. The aim of this work was to study the mechanism by which SU5416, a known anti-angiogenesis inhibitor, modifies the radiation responses of human vascular ECs. Two human endothelial cell lines (HUVEC and 2H11) were treated with SU5416 alone, radiation alone, or a combination of both. In vitro tests were performed using colony forming assays, FACS analysis, western blotting, immunohistochemistry, migration assay, invasion assays and endothelial tube formation assays. The combination of radiation and SU5416 significantly inhibited cell survival, the repair of radiation-induced DNA damage, and induced apoptosis. It also caused cell cycle arrest, inhibited cell migration and invasion, and suppressed angiogenesis. In this study, our results first provide a scientific rationale to combine SU5416 with radiotherapy to target ECs and suggest its clinical application in combination cancer treatment with radiotherapy.
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October-2015
Volume 47 Issue 4

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Kim EH, Kim M, Jeong YK, Cho I, You SH, Cho SH, Lee H, Jung W, Kim HD, Kim J, Kim J, et al: Mechanisms for SU5416 as a radiosensitizer of endothelial cells. Int J Oncol 47: 1440-1450, 2015
APA
Kim, E.H., Kim, M., Jeong, Y.K., Cho, I., You, S.H., Cho, S.H. ... Kim, J. (2015). Mechanisms for SU5416 as a radiosensitizer of endothelial cells. International Journal of Oncology, 47, 1440-1450. https://doi.org/10.3892/ijo.2015.3127
MLA
Kim, E. H., Kim, M., Jeong, Y. K., Cho, I., You, S. H., Cho, S. H., Lee, H., Jung, W., Kim, H. D., Kim, J."Mechanisms for SU5416 as a radiosensitizer of endothelial cells". International Journal of Oncology 47.4 (2015): 1440-1450.
Chicago
Kim, E. H., Kim, M., Jeong, Y. K., Cho, I., You, S. H., Cho, S. H., Lee, H., Jung, W., Kim, H. D., Kim, J."Mechanisms for SU5416 as a radiosensitizer of endothelial cells". International Journal of Oncology 47, no. 4 (2015): 1440-1450. https://doi.org/10.3892/ijo.2015.3127