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Inhibitory Effects of Angiostatin on the Growth of Human Glioma and It′s Pathological Study
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Abstract:
Objective: To investigate the inhibitory effects of human angiostatin (AS) on the subcutaneously transplanted mouse glioma. Methods: Effects of AS on the proliferation of angioendothelial cell line ECV-304 and human glioma cell line TJ-905 were observed with MTT method. Mouse model of subcutaneously transplanted of glioma line G422 was established. AS was injected subcutaneously, tumor ratio and tumor in hibitory rate were estimated. Results: (1) Inhibitory effects of AS on ECV-304 enhanced with the increase of dose, while AS exerted no effect on TJ-905 ; (2) It was shown with animal experiments that tumer inhibitory rates were 21.8% and 84.3% with AS doses of 10 mg and 50 mg·kg-1·d-1, respectively; (3) Immunochemical factor Ⅷ staining indicated there the differences between the control and the control and the test groups in both the angiodevelopment and quantity. Conclusion: There was no inhibitory effect for AS to angiolorna cell in vitro, however in vivo, it inhibited the glioma growth via its inhibitory effect on the proliferation of angioend othelial cell line. It was then suggested that AS would be of wide application in tumor treatment.
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