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Mohan, P.M. et al.

Adenovirus-mediated delivery of antisense gene to urokinase-type plasminogen activator receptor suppresses glioma invasion and tumor growth.

The urokinase-type plasminogen activator ( uPA) and uPA receptor ( UPAR) play important roles in the proteolytic cascade involved in the invasiveness of gliomas and other invasive tumors. High-level expression of uPAR has been correlated with high-grade glioma cell lines and tumors We report here that down-regulating uPAR levels by antisense strategy using an adenovirus construct (Ad-uPAR) inhibited glioma invasion in Matrigel and spheroid in vitro models. sc. (U87-MG) and intracranial (SNB19) injections of Ad-uPAR-infected glioma cells did not produce tumors in nude mice. However, injection of the Ad-uPAR construct into previously established so U87-MG tumors in nude mice caused regression of those tumors. Our results support the therapeutic potential of targeting the uPA-uPAR system for the treatment of gliomas and other cancers.[1]

References

Adenovirus-mediated delivery of antisense gene to urokinase-type plasminogen activator receptor suppresses glioma invasion and tumor growth. Mohan, P.M., Chintala, S.K., Mohanam, S., Gladson, C.L., Kim, E.S., Gokaslan, Z.L., Lakka, S.S., Roth, J.A., Fang, B., Sawaya, R., Kyritsis, A.P., Rao, J.S. Cancer Res. (1999) [Pubmed]

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