Proliferation and migration of tumor cells in tapered channels.

Proliferation and migration of tumor cells in tapered channels.
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DOI:
10.1007/s10544-012-9721-0
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发表时间:
2013-08
影响因子:
2.8
通讯作者:
Iqbal, Samir M.
Iqbal, Samir M.
中科院分区:
工程技术3区
文献类型:
--
作者:
Wan, Yuan;Tamuly, Deepika;Allen, Peter B.;Kim, Young-tae;Bachoo, Robert;Ellington, Andrew D.;Iqbal, Samir M.

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肿瘤细胞表现出两种异常趋势:过度增殖和剧烈迁移。设计并制造了一种锥形通道装置,用于体外研究当暴露于靶向表皮生长因子受体(EGFR)的新型适体时抑制人胶质母细胞瘤(hGBM)细胞的增殖和迁移。该装置与受控环境和显微镜集成,用于提供体外肿瘤细胞行为的实时和定量表征。结果显示,当暴露于抗EGFR适体时,hGBM细胞失去增殖和运动性。适体直接抑制和阻断EGF诱导的EGFR磷酸化。这也降低了细胞重塑其内部结构以通过狭窄收缩侵入的能力。这为其他抑制分子的功效的可能研究提供了框架。
Tumor cells depict two deviant tendencies; over-proliferation and vigorous migration. A tapered channel device is designed and fabricated for in vitro studying inhibited proliferation and migration of human glioblastoma (hGBM) cells when exposed to a novel aptamer targeting epidermal growth factor receptors (EGFR). The device is integrated with controlled ambient and microscope for providing real-time and quantitative characterization of the tumor cell behavior in vitro. The results show that hGBM cells loose proliferation and motility when exposed to the anti-EGFR aptamers. The aptamer directly inhibits and blocks EGF-induced EGFR phosphorylation. This also reduces the ability of cells to remodel their internal structure for invasion through narrow constrictions. This provides a framework for possible studies on efficacy of other inhibiting molecules.
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发表时间: 1993-01-21
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