ZHENG Feng,CUI Xiang-dan,ZHU Jie-bo,et al.Anti-angiogenic Effect of Soy Isoflavones in H22-transplanted Mice[J].Soybean Science,2018,37(01):101-104.[doi:10.11861/j.issn.1000-9841.2018.01.0101]
大豆异黄酮对小鼠肝癌移植瘤血管生成的抑制作用
- Title:
- Anti-angiogenic Effect of Soy Isoflavones in H22-transplanted Mice
- Keywords:
- Soy isoflavones; H22; Anti-angiogenic
- 分类号:
- S565.1;R285.5
- 文献标志码:
- A
- 摘要:
- 为了探讨大豆异黄酮对肝癌移植瘤血管生成的抑制作用,建立小鼠H22肝癌皮下移植瘤模型。用大豆异黄酮干预10 d,利用免疫组化染色法检测肿瘤组织内微血管密度,利用免疫印迹法检测肿瘤组织内血管内皮细胞生长因子(VEGF)、血管内皮细胞生长因子受体2(VEGFR2)和缺氧诱导因子-1α(HIF-1α)的表达,酶联免疫吸附测定(ELISA)法检测转化生长因子-β1(TGF-β1)和基质金属蛋白酶2(MMP2)的水平。结果显示,大豆异黄酮组移植瘤细胞生长受到抑制,细胞坏死较严重。与模型组比较,大豆异黄酮组肿瘤组织内微血管密度降低;VEGF、VEGFR2和HIF1α的蛋白表达降低;TGF-β1及MMP2蛋白表达下降。提示,大豆异黄酮对小鼠H22移植瘤组织的血管生成具有抑制作用,机制可能与下调移植瘤组织VEGF和TGF-β1蛋白表达有关。关键词:
- Abstract:
- The anti-angiogenic effect of soy isoflavones in hepatoma-transplanted mice was investigated. Mice bearing H22 hepatoma cells were established and treated with soy isoflavones for 10 days. The microvessel density was detected using immunohistochemical staining, the expression of vascular endothelial growth factor (VEGF), vascular endothelial growth factor receptor2 (VEGFR2) and hypoxia-inducible factor-1α (HIF-1α) was detected by the western blot method, and the transforming growth factor-β1 (TGF-β1) and matrix metalloproteinase2 (MMP2) were analyzed with the enzyme-linked immunosorbent assay (ELISA) method. Soy isoflavones decreased the microvessel density of tumor tissue, and down-regulated the protein expression of VEGF, VEGFR-2, HIF-1α, TGF-β1 and MMP2 in transplanted tumor tissue. Taken together, soy isoflavones could exhibit the anti-angiogenic effect in H22-transplanted mice, and its mechanism is probably related to down-regulation of VEGF and TGF-β1 proteins.
参考文献/References:
[1] 河福金,王健,牛建昭,等. 大豆异黄酮抑制裸鼠移植瘤生长及其血管生成的实验研究[J]. 中国药理学通报,2003,19(1):73-76.(He F J, Wang J, Niu J Z, et al. Experimetal study on growth inhibition and angiogenesis in transplanted tumor caused by genistein in vivo[J]. Chinese Pharmacological Bulletin, 2003, 19(1):73-76.)
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备注/Memo
收稿日期:2017-10-02