Poly(lactic acid) electrospun fiber membranes carrying gemcitabine hydrochloride inhibit the growth of bone tumor

doi:10.3969/j.issn.2095-4344.0756

Abstract

Abstract:

BACKGROUND: Gemcitabine hydrochloride is a water-soluble anticancer drug that induces apoptosis in tumor cells, but it has an excessive release in vivo.

OBJECTIVE: To evaluate the effect of poly(lactic acid) (PLA) electrospun fiber membranes carrying gemcitabine hydrochloride on the growth of human osteosarcoma cell lines MG-63.

METHODS: PLA electrospun fiber members with (experimental) or without (control) gemcitabine hydrochloride were fabricated and characterized. Two kinds of fiber membranes were immersed in low-glucose DMEM medium, and the supernatants were collected in the two groups at 3, 5, 7 days, respectively. Passage 5 human osteosarcoma cell lines MG-63 were inoculated into 96-well plates containing low-glucose DEME with 15% fetal bovine serum, and divided into seven groups. Groups 1-3 were cultured in the experimental supernatants of 3, 5, 7 culture days, and groups 4-6 were cultured in the control supernatants of 3, 5, 7 culture days, respectively. The remaining group acted as the negative control with no supernatant. Thereafter, cell counting kit-8 was used to detect cell proliferation, and RT-PCR was used to measure expression of Bcl-2 and Bax at 3 days of culture.

RESULTS AND CONCLUSION: (1) No obvious particle was found on the smooth and even surface of the fiber members in the experimental and control groups. There was no significant difference in fiber diameter, contact angle and tensile strength between the two kinds of fiber membranes. (2) The results of cell counting kit-8 showed that compared with the negative control group, the supernatant released from the control group had no effect on the MG-63 proliferation at different time points, while the supernatant released from the experimental group could inhibit the MG-63 proliferation at different time points (P < 0.05), and the inhibitory effect became more and more obvious with the prolongation of release time. (3) RT-PCR findings showed that compared with the control group, the supernatant released from the experimental group could increase Bax mRNA expression and decrease Bcl-2 mRNA expression at the same time point. To conclude, the PLA electrospun fiber membranes carrying gemcitabine hydrochloride can sustainably inhibit MG-63 proliferation and promote cell apoptosis.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Osteosarcoma, Cell Proliferation, Apoptosis, Tissue Engineering

CLC Number:

R318

Liu Xing-zhi, Xiang Yi, Ju Xiao-jing, Cui Wen-guo, Shi Qin. Poly(lactic acid) electrospun fiber membranes carrying gemcitabine hydrochloride inhibit the growth of bone tumor[J]. Chinese Journal of Tissue Engineering Research, 2018, 22(14): 2221-2226.

Figures/Tables 5

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