Targeted extracellular nanoparticles enable intracellular detection of activated epidermal growth factor receptor in living brain cancer cells.

Targeted extracellular nanoparticles enable intracellular detection of activated epidermal growth factor receptor in living brain cancer cells.
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靶向细胞外纳米颗粒可在活脑癌细胞中对活化表皮生长因子受体的细胞内检测。

DOI:
10.1016/j.nano.2011.05.002
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发表时间:
2011-12
影响因子:
5.4
通讯作者:
Vazquez, Maribel
Vazquez, Maribel
中科院分区:
医学2区
文献类型:
--
作者:
Dudu, Veronica;Rotari, Veronica;Vazquez, Maribel

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通过量子点 (Qdot) 对生物过程进行机理研究仍然受到低效 QDot 传递方法和随之而来的细胞功能改变的限制。在这里,我们提出了一种快速方法来标记源自髓母细胞瘤和神经胶质瘤的活癌细胞内激活的受体群体。我们使用 Qdot 结合表皮生长因子受体 (EGF-R) 蛋白的胞外结构域,然后诱导受体激活,以促进细胞内活化的 EGF-R 亚群的特异性检测。这种标记能够快速识别肿瘤类型、级别和化疗耐药性的生物标志物特征。
Mechanistic study of biological processes via Quantum dots (Qdots) remain constrained by inefficient QDot delivery methods and consequent altered cell function. Here we present a rapid method to label activated receptor populations within live cancer cells derived from medulloblastoma and glioma tumors. We used Qdots to bind the extracellular domain of Epidermal Growth Factor Receptor (EGF-R) proteins and then induced receptor activation to facilitate specific detection of intracellular, activated EGF-R subpopulations. Such labeling enables rapid identification of biological markers characteristic of tumor type, grade, and chemo-resistance.
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