人參皂苷免疫納米對胃癌荷瘤裸鼠侵襲轉(zhuǎn)移及VEGF-C、TGF-β1表達(dá)的影響
[Abstract]:Objective: to establish an in situ fluorescence gastric cancer model in nude mice. Objective: to investigate the effects of ginsenoside immune nanoparticles (VEGFR3-mediated immune-nanoemulsion of ginsenoside Rg3, VRIN) on the expression of vascular endothelial growth factor-C (Vascular endothelial growth factor-C, VEGF-C and transforming growth factor-尾-1 (Transforming growth factor-beta1, TGF- 尾 _ 1 in the serum of nude mice with human gastric cancer after orthotopic transplantation. Methods: the in situ fluorescence gastric cancer model of nude mice was successfully established by using NUGC-4 gastric cancer cell line which expressed red fluorescence stably. On the 9th day after modeling, 32 nude mice were randomly divided into 4 groups, each group (n = 8), which were treated with saline 5-FUU VRIN low dose and high dose VRIN, respectively, to observe the survival status and tumor metastasis of nude mice in each group. The mice were sacrificed at the end of the experiment. The tumor metastasis was examined under the open fluorescence stereoscopic microscope and the metastasis rate was calculated. The orthotopic transplanted tumor and the metastatic tumor tissue were taken for pathological examination. Enzyme linked immunosorbent assay (Enzyme-Linked ImmunoSorbent Assay, ELISA) was used to detect the expression of VEGF-C,TGF- 尾 1 in nude mice serum. Results one of the nude mice successfully established an in situ fluorescent gastric cancer model. Some of the nude mice showed metastasis. The metastatic rates of the low dose 12.5%.VRIN group and the 12.5%.VRIN high dose group were 37. 5% and 37. 5%, respectively, compared with those of the normal saline group. There was statistical significance (P0.05). 2FU low dose group could significantly reduce the expression of VEGF-C,TGF-p1 in the serum of gastric cancer (P0.05), and normal saline group had significant statistical significance (P0.05). The down-regulation of VEGF-C,TGF- 尾 _ 1 expression was more obvious in the 5-FU group than in the VRIN low-dose group (P0.05). The expression of VEGF-C,TGF- 尾 _ 1 in the high-dose VRIN group was significantly lower than that in the 5-FU group. The expression of TGF- 尾 1 in metastatic gastric cancer group was significantly higher than that in non-metastasis group (P0.05). Conclusion 1. NUGC-4 gastric cancer cell line with stable expression of red fluorescence was successfully used to establish nude mice model of in situ fluorescence gastric cancer. Ginsenoside immunized nano (VRIN) could significantly inhibit the metastasis of human gastric cancer xenografts in nude mice. The level of VEGF-C,TGF- 尾 1 was closely related to the metastasis of gastric cancer. The level of VEGF-C,TGF- 尾 1 in serum of nude mice with gastric cancer was significantly down-regulated by VEGF-C,TGF- 尾 1, which may be the mechanism of inhibiting the metastasis of gastric cancer.
【學(xué)位授予單位】:南京中醫(yī)藥大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:R735.2
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