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Effect of p27 gene combined with Pientzehuang (片仔癀) on tumor growth in osteosarcoma-bearing nude mice

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Abstract

Objective

To observe the effect of p27 gene recombinant adenovirus combined with Chinese medicine Pientzehuang (片仔癀) on the growth of xenografted human osteosarcoma in nude mice.

Methods

Tissue transplantation was used to construct the orthotopic model of human osteosarcoma Saos-2 cell in nude mice. Thirty tumor-bearing nude mice were randomly divided into 5 groups with 6 mice in each group: blank control group (model of osteosarcoma), empty vector group (recombinant adeno-associated virus-multiple cloning site), Pientzehuang group, p27 gene group and combined treatment group (p27 gene combined with Pientzehuang). The effect of combined treatment on human osteosarcoma was analyzed through the tumor formation, tumor volume and inhibition rate of tumor growth. The expression of p27 was measured by immunohistochemical staining and Western blot.

Results

The orthotopic model of osteosarcoma in nude mice was successfully constructed. The general appearance of tumor-bearing nude mice in Pientzehuang and p27 gene groups was markedly improved compared with the blank control group; and in the combined treatment group it was signifificantly improved compared with the Pientzehuang and p27 gene groups. The tumor growth in the Pientzehuang and p27 gene groups was significantly inhibited compared with the blank control group P<0.05); while in the combined treatment group it was markedly inhibited compared with the Pientzehuang and p27 gene groups (P<0.05). The rates of tumor growth inhibition were 34.1%, 56.5% and 63.8% in the Pientzehuang, p27 gene and combined treatment groups, respectively. Meanwhile, the protein expression of p27 gene in the p27 gene group was signifificantly increased compared with the blank control group (P<0.05); and it was signifificantly increased in the combined treatment group compared with the p27 gene and Pientzehuang groups (P<0.05).

Conclusion

p27 gene introduced by adenovirus combined with Pientzehuang can inhibit the growth of human osteosarcoma cell Saos-2 in nude mice.

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Correspondence to Ying-hong Liu  (刘映红).

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Ren, Ss., Yuan, F., Liu, Yh. et al. Effect of p27 gene combined with Pientzehuang (片仔癀) on tumor growth in osteosarcoma-bearing nude mice. Chin. J. Integr. Med. 21, 830–836 (2015). https://doi.org/10.1007/s11655-014-1766-x

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  • DOI: https://doi.org/10.1007/s11655-014-1766-x

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