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Issue 10, 2019
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Cell-imprinted biomimetic interface for intelligent recognition and efficient capture of CTCs

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Abstract

The efficient recognition and isolation of rare cancer cells from blood has great significance for early cancer diagnosis and monitoring prognosis. In this paper, we propose a cell-imprinted biomimetic interface for highly efficient capture of circulating tumor cells (CTCs) through the use of target cells as an imprint template. The cell-morphology topologies and residual biomolecular receptors on the cell-imprinted interface recognize template cells by mimicking the specific immunoaffinity of the antibody–antigen (known as plastic antibody). Furthermore, we introduced a natural antibody (anti-EpCAM) to accelerate the CTC–material interaction. Due to the synergistic contribution of natural and plastic antibodies, the imprinted surface exhibited high performances in CTC detection on an artificial blood sample, with a capture efficiency higher than 55%. In addition to the experiment, we conducted a systematic analysis of the biochemical recognition (real antibody anti-EpCAM and plastic receptor) and topographic interaction to gain insight into the cell–biointerface interaction. The results of this study provide new prospects for designing cell–material interaction interfaces for future cell-based biological research and clinical applications.

Graphical abstract: Cell-imprinted biomimetic interface for intelligent recognition and efficient capture of CTCs

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Article information


Submitted
29 Jun 2019
Accepted
01 Aug 2019
First published
02 Aug 2019

Biomater. Sci., 2019,7, 4027-4035
Article type
Paper

Cell-imprinted biomimetic interface for intelligent recognition and efficient capture of CTCs

S. Gao, S. Chen and Q. Lu, Biomater. Sci., 2019, 7, 4027
DOI: 10.1039/C9BM01008D

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