Localized Cell-Surface Sampling of a Secreted Factor Using Cell-Targeting Beads.

Localized Cell-Surface Sampling of a Secreted Factor Using Cell-Targeting Beads.
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使用细胞靶向珠的分泌因子对局部细胞表面采样。

DOI:
10.1021/acs.analchem.0c02578
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发表时间:
2020-10-20
影响因子:
7.4
通讯作者:
Theberge AB
Theberge AB
中科院分区:
化学1区
文献类型:
--
作者:
van Neel TL;Berry SB;Berthier E;Theberge AB

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通过分泌可溶性因子的细胞间通讯在广泛的生物过程中起着至关重要的作用(例如,体内平衡、免疫应答),然而,由于这些因子在分析之前在细胞培养基中的降解或隔离,这些因子中的许多的鉴定和定量可能是具有挑战性的。在这里,我们提出了一个可定制的珠为基础的系统,能够同时结合到活细胞(通过抗体介导的细胞拴系)和捕获细胞分泌的分子。我们的功能化珠捕获分泌的分子(例如,由成纤维细胞分泌的肝细胞生长因子),当通过传统的上清液分析技术取样时其减少(p < 0.05),在细胞培养基中存在中和组分的情况下有效地挽救了减少的信号。我们的系统能够捕获和分析化学通讯不可或缺的分子,否则这些分子在分析之前会显着减少。
Intercellular communication through the secretion of soluble factors plays a vital role in a wide range of biological processes (e.g., homeostasis, immune response), yet identification and quantification of many of these factors can be challenging due to their degradation or sequestration in cell culture media prior to analysis. Here, we present a customizable bead-based system capable of simultaneously binding to live cells (through antibody-mediated cell-tethering) and capturing cell-secreted molecules. Our functionalized beads capture secreted molecules (e.g., hepatocyte growth factor secreted by fibroblasts) that are diminished when sampled via traditional supernatant analysis techniques (p < 0.05), effectively rescuing reduced signal in the presence of neutralizing components in the cell culture media. Our system enables capture and analysis of molecules integral to chemical communication that would otherwise be markedly decreased prior to analysis.
DOI: 10.1097/mco.0b013e32833cf3bc
发表时间: 2010-09
影响因子: 3.1
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