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学科主题: 物理化学
题名: Chitooligosaccharides bind to HUVEC and block its migration by inhibiting no generation
作者: Wu HG(吴海歌) ;  Yao ZA(姚子昂) ;  Bai XF(白雪芳) ;  Du YG(杜昱光)
会议名称: The 13th International Biotechnology Symposium
会议日期: 2008-10-12
出版日期: 2008-10-12
会议地点: 中国
通讯作者: 杜昱光
部门归属: 十八室
主办者: 中国科学院 中国工程院 中华人民共和国教育部 中华人民共和国科学技术部 中华人民共和国国家发展改革委员会
摘要: Our previous study has certificated the anti-angiogenesis activity of chitooligosaccharides (COS) (Wu et al., 2008), but the mechanism is not clear. In order to investigate how COS perform its anti-angiogenic function, the COSwas labeled by 2-aminoacridone (2-AMAC) and the binding of COS with human umbilical vein endothelial cells (HUVEC) was detected by Flow Cytometry and fluorescence microscope. As nitric oxide (NO) is involved in angiogenesis (Peeyush and Chandan, 2001), the effect of COS on the NO generation ofHUVECwas measuredby Griessmethod and the effect of COS on the actin polymerization of HUVEC was observed under Laser confocal microscopy at the same time. The result showed the binding rate of COS with HUVEC was about 36% and the COS could enter HUVEC and gather around the nucleus. The NO generation assay showed 50 g/ml COS could reduce the NO generation evidently compared to control cells, at the same time 50 g/ml COS could induce the formation of central microfilaments and reduce the number of lamelipodia, compared with what was observed in control cells (Figure). All of the results indicated that COS could bind to HUVEC and block its migration by inhibiting the NO generation.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/113218
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Wu HG,Yao ZA,Bai XF,et al. Chitooligosaccharides bind to HUVEC and block its migration by inhibiting no generation[C]. 见:The 13th International Biotechnology Symposium. 中国. 2008-10-12.
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