Background & objective: It was reported that endostatin could inhibit tumor angiogenesis, then inhibit the growth and metastasis of tumor. However, there was few report about the treatment usage of endostatin. This study was designed to explore the effect of endostatin mediated with recombinant adeno-associated virus(rAAV) on tumor growth and metastasis.
Methods: To obtain the endostatin gene complete cDNA by RT-PCR, and clone it into the plasmid pSNAV and package the recombinant rAAV-SS-endostatin; to analyze its anti-tumor effect through animal experiments.
Results: In the B16F10 melanoma tumor model, C57BL/6 mice were inoculated with 10(11)TU rAAV-SS-endostatin i.m. injection, which the inhibition rate was 57.1%; In the lung metastatic model, the inhibition rate of metastases was 70.7%.
Conclusions: rAAV-SS-endostatin can effectively inhibit tumor growth and metastasis.