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首页> 外文期刊>Journal of cellular biochemistry. >Osteosarcoma cells enhance angiogenesis visualized by color-coded imaging in the in vivo gelfoam? assay
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Osteosarcoma cells enhance angiogenesis visualized by color-coded imaging in the in vivo gelfoam? assay

机译:骨肉瘤细胞增强体内凝胶泡沫中彩色编码成像所显现的血管生成?化验

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We previously described a color-coded imaging model that can quantify the length of nascent blood vessels using Gelfoam? implanted in nestin-driven green fluorescent protein (ND-GFP) nude mice. In ND-GFP mice, nascent blood vessels are labeled with GFP. We report here that osteosarcoma cells promote angiogenesis in the Gelfoam? angiogenesis assay in ND-GFP mice. Gelfoam? was initially transplanted subcutaneously in the flank of transgenic ND-GFP nude mice. Seven days after transplantation of Gelfoam?, skin flaps were made and human 143B osteosarcoma cells expressing green fluorescent protein (GFP) in the nucleus and red fluorescent protein (RFP) in cytoplasm were injected into the transplanted Gelfoam?. The control-group mice had only implanted Gelfoam?. Skin flaps were made at days 14, 21, and 28 after transplantation of the Gelfoam? to allow imaging of vascularization in the Gelfoam? using a variable-magnification small animal imaging system and confocal fluorescence microscopy. ND-GFP expressing nascent blood vessels penetrated and spread into the Gelfoam? in a time-dependent manner in both control and osteosarcoma-implanted mice. ND-GFP expressing blood vessels in the Gelfoam? of the osteosarcoma-implanted mice were associated with the cancer cells and larger and longer than in the Gelfoam?-only implanted mice (P<0.01). The results presented in this report demonstrate strong angiogenesis induction by osteosarcoma cells and suggest this process is a potential therapeutic target for this disease. J. Cell. Biochem. 115: 1490-1494, 2014.
机译:先前我们描述了一种彩色编码成像模型,该模型可以使用Gelfoam?定量新生血管的长度。植入Nestin驱动的绿色荧光蛋白(ND-GFP)裸鼠中。在ND-GFP小鼠中,新生血管用GFP标记。我们在这里报告骨肉瘤细胞促进明胶泡沫中的血管生成? ND-GFP小鼠的血管生成测定。明胶泡沫?首先将其皮下移植到转基因ND-GFP裸鼠的腹侧。 Gelfoamα移植后7天,制作皮瓣,将在细胞核中表达绿色荧光蛋白(GFP)和细胞质中红色荧光蛋白(RFP)的人143B骨肉瘤细胞注入移植的Gelfoamα中。对照组小鼠只植入了Gelfoam。 Gelfoam?移植后第14、21和28天制作了皮瓣。可以对明胶泡沫中的血管形成进行成像?使用变倍小动物成像系统和共聚焦荧光显微镜。表达ND-GFP的新生血管渗透并扩散到Gelfoam中?在对照组和骨肉瘤植入小鼠中均呈时间依赖性。在Gelfoam中表达ND-GFP的血管?植入骨肉瘤的小鼠中,有一半与癌细胞有关,并且比仅用Gelfoam?植入的小鼠更大且更长(P <0.01)。该报告中提出的结果证明了骨肉瘤细胞强烈的血管生成诱导作用,并表明该过程是该疾病的潜在治疗靶标。 J.细胞。生化。 115:1490-1494,2014。

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