Inhibition of autocrine fibroblast growth factor signaling by the adenovirus-mediated expression of an antisense transgene or a dominant negative receptor in human glioma cells in vitro

  • Authors:
    • T. Aoki
    • S. Kato
    • J. C. Fox
    • K. Okamoto
    • K. Sakata
    • M. Morimatsu
    • M. Shigemori
  • View Affiliations

  • Published online on: September 1, 2002     https://doi.org/10.3892/ijo.21.3.629
  • Pages: 629-636
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Abstract

Autocrine fibroblast growth factor (FGF) signaling was genetically manipulated in human gliomas by an adenovirus-mediated strategy. Antisense inhibition of endogenous basic FGF (bFGF) expression showed inhibition of the proliferation of human glioma cells (U251MG, NMC-G1) without promoting apoptosis. The reduction in proliferation in response to antisense inhibition was reversed with an additional supplement of exogenous bFGF. On the other hand, the overexpression of a kinase defective mutant of the type I FGF receptor (dominant negative FGF receptor) resulted in not only growth inhibition but also marked apoptosis in U251MG cells. In the cells expressing a dominant negative FGF receptor, the reduction in cell number was not reversed by the exogenous bFGF supplement. Our data further implicated the significance of an autocrine FGF signaling loop in human gliomas. Cell survival activity may largely depend on the receptor-mediated pathway, which should be considered in the development of the molecular based therapeutics.

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September 2002
Volume 21 Issue 3

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

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Spandidos Publications style
Aoki T, Kato S, Fox JC, Okamoto K, Sakata K, Morimatsu M and Shigemori M: Inhibition of autocrine fibroblast growth factor signaling by the adenovirus-mediated expression of an antisense transgene or a dominant negative receptor in human glioma cells in vitro. Int J Oncol 21: 629-636, 2002
APA
Aoki, T., Kato, S., Fox, J.C., Okamoto, K., Sakata, K., Morimatsu, M., & Shigemori, M. (2002). Inhibition of autocrine fibroblast growth factor signaling by the adenovirus-mediated expression of an antisense transgene or a dominant negative receptor in human glioma cells in vitro. International Journal of Oncology, 21, 629-636. https://doi.org/10.3892/ijo.21.3.629
MLA
Aoki, T., Kato, S., Fox, J. C., Okamoto, K., Sakata, K., Morimatsu, M., Shigemori, M."Inhibition of autocrine fibroblast growth factor signaling by the adenovirus-mediated expression of an antisense transgene or a dominant negative receptor in human glioma cells in vitro". International Journal of Oncology 21.3 (2002): 629-636.
Chicago
Aoki, T., Kato, S., Fox, J. C., Okamoto, K., Sakata, K., Morimatsu, M., Shigemori, M."Inhibition of autocrine fibroblast growth factor signaling by the adenovirus-mediated expression of an antisense transgene or a dominant negative receptor in human glioma cells in vitro". International Journal of Oncology 21, no. 3 (2002): 629-636. https://doi.org/10.3892/ijo.21.3.629