Programmable binary chimera aptamer probes for intelligent fluorescence imaging of cell membrane receptors

Programmable binary chimera aptamer probes for intelligent fluorescence imaging of cell membrane receptors
复制标题

用于细胞膜受体智能荧光成像的可编程二元嵌合适体探针

DOI:
10.1016/j.snb.2016.10.099
复制
发表时间:
2017-03
期刊:
Sensors and Actuators B: Chemical
影响因子:
--
通讯作者:
Bin Yang
Bin Yang
中科院分区:
其他
文献类型:
--
作者:
Xijiao Wei;Mengmeng Li;Pan Hu;Bin Yang

文献摘要

参考文献

相似文献

荧光成像是表征细胞膜受体的有力工具,这些受体涉及许多重要的细胞内活动。然而,目前的荧光成像策略的静态模型特征阻碍了对膜受体高级行为的研究。为了解决这个问题,我们采用了一种新型的可编程二元嵌合体适体探针,用于细胞膜受体的智能荧光成像。首先,一个二元嵌合体适体探针被成功地工程化以粘附成像活细胞上的靶受体PTK7。此外,与胰蛋白酶处理等传统方法相比,它在信号调节的选择性方面也表现出明显的优势。其次,通过采用层状DNA纳米结构作为可编程信号调节部分开发了另一种探针。它允许以AND逻辑的方式使用两条DNA链作为输入来原位可视化膜受体PTK7。有趣的是,它是第一个细胞成像探针,可以区分顺序依赖的相互作用,在一个锁逻辑的方式。此外,在这些探针中还成功地采用了内部对照,以通过考虑细胞间变异和背景来提高成像可靠性。
Fluorescence imaging is a powerful tool to characterize cell membrane receptors which involve many important intracellular activities. However, the study of the membrane receptors’ senior behaviors is hindered by the static model characteristic of current fluorescence imaging strategies. To address this issue, we adapted a novel type of programmable binary chimera aptamer probes for intelligent fluorescence imaging of cell membrane receptors. Firstly, one binary chimera aptamer probe was successfully engineered to reiteratively image target receptor PTK7 on living cells. Besides, it also showed a distinct advantage of selectivity for signal regulation over conventional method such as trypsin treatment. Secondly, another probe was developed by employing a layered DNA nanostructure as the programmable signal regulating moiety. It allowedin situvisualizing the membrane receptor PTK7 in an AND logic manner using two DNA strands as inputs. Interestingly, it was among the first cell imaging probes which could differentiate the order-dependent interaction in a keypad-lock logic manner. Furthermore, an internal control was also successfully employed in these probes to improve imaging reliability by accounting for cell-to-cell variations and background.
DOI: 10.1002/anie.201002295
发表时间: 2010-01-01
影响因子: 16.6
作者:
Kowalczyk, Bartlomiej;Walker, David A.;Grzybowski, Bartosz A.
通讯作者: Grzybowski, Bartosz A.
DOI: 10.1083/jcb.149.4.901
发表时间: 2000-05-15
期刊: The Journal of cell biology
影响因子: --
作者:
Sönnichsen B;De Renzis S;Nielsen E;Rietdorf J;Zerial M
通讯作者: Zerial M
DOI: 10.1093/clinchem/45.9.1628
发表时间: 1999-09
期刊: Clinical chemistry
影响因子: 9.3
作者:
S. Jayasena
通讯作者: S. Jayasena
DNA“纳米爪”:基于逻辑的自主癌靶向和治疗。
DOI: 10.1021/ja4114903
发表时间: 2014-01-29
影响因子: 15
作者:
You M;Peng L;Shao N;Zhang L;Qiu L;Cui C;Tan W
通讯作者: Tan W
DOI: 10.1038/nbt.1692
发表时间: 2010-11
影响因子: 46.9
作者:
通讯作者: --