In the present study, we aimed to investigate the tumor-inhibiting effects of recombinant human endostatin (rhES) combined with paclitaxel-cisplatin (TP regimen) on human breast cancer in xenograft-bearing nude mice. A total of 24 mice bearing human breast cancer xenografts were administered both rhES and TP, TP alone, rhES alone or saline. The tumor growth inhibition was observed. Serum vascular endothelial growth factor (VEGF) levels and microvessel density (MVD) were determined by ELISA and immunohistochemistry, respectively. Cell apoptosis was detected using terminal deoxynucleotidyl transferase dUTP nick end-labeling (TUNEL) staining. Survival time was observed in another 24 nude mice with the same treatment. MVD expression in the group administered rhES and TP was lower than that in the other groups (P<0.05); serum VEGF levels in the combined drug group were lower compared to the other groups; the apoptotic index increased in the combined drug group. We conclude that the effect of the TP regimen combined with rhES on breast cancer is better than that of the TP regimen alone.
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| http://dx.doi.org/10.3892/etm.2011.384 | DOI Listing |
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