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An assay for cancer stem cell-induced angiogenesis on chick chorioallantoic membrane

机译:用于癌症干细胞诱导的血管生成的测定鸡孔瘤膜

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Angiogenesis is generally involved in tumor growth and metastasis. Cancer stem cells (CSCs) are considered to facilitate the angiogenesis. Therefore, CSCs could be the effective targets to stop angiogenesis. Recently, our group successfully generated CSC models from induced pluripotent stem cells (iPSCs) in the presence of conditioned medium derived from cancer derived cells. These novel model CSCs has been characterized by highly tumorigenic, angiogenic and metastatic potentials in vivo. The angiogenic potential of CSCs has been explained by the expression of both angiogenic factors and their receptors implying the angiogenesis in autocrine manner. In this protocol we optimized the method to evaluate tumor angiogenesis with the CSC model, which was described effective to assess sorafenib as an antiangiogenic drug, on chick chorioallantoic membrane (CAM) assay. Our results demonstrate that CSCs developed from iPSCs and CAM assay are a robust and cost-effective tool to evaluate tumor angiogenesis with CSCs. Collectively, CSCs in CAM assay could serve as a very useful model for the screening of potential therapeutic agents targeting tumor angiogenesis.
机译:血管生成通常与肿瘤的生长和转移有关。肿瘤干细胞被认为是促进血管生成的细胞。因此,CSCs可能是阻止血管生成的有效靶点。最近,我们的团队成功地利用诱导多能干细胞(IPSC)在癌源性细胞的条件培养基中构建了CSC模型。这些新型的CSCs模型在体内具有高度的致瘤性、血管生成性和转移潜能。血管生成因子及其受体的表达解释了CSCs的血管生成潜能,提示其以自分泌方式进行血管生成。在该方案中,我们优化了用CSC模型评估肿瘤血管生成的方法,该模型被描述为在鸡胚绒毛尿囊膜(CAM)试验中有效评估索拉非尼作为抗血管生成药物。我们的结果表明,由iPSCs和CAM分析开发的CSCs是一种稳健且经济有效的工具,可用于评估CSCs的肿瘤血管生成。总之,CAM分析中的CSCs可以作为筛选靶向肿瘤血管生成的潜在治疗药物的非常有用的模型。

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