A Genetically Encoded RNA Photosensitizer for Targeted Cell Regulation.

A Genetically Encoded RNA Photosensitizer for Targeted Cell Regulation.
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用于靶向细胞调节的遗传编码的RNA光敏剂。

DOI:
10.1002/anie.202010106
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发表时间:
2020-12-01
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
You M
You M
中科院分区:
其他
文献类型:
--
作者:
Ren K;Keshri P;Wu R;Sun Z;Yu Q;Tian Q;Zhao B;Bagheri Y;Xie Y;You M

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基因编码的RNA设备已经出现,用于成像和生物传感的各种细胞应用,但它们在生命系统中作为精确调节器的功能仍然有限。受蛋白质光敏剂的启发,我们提出了一种基于基因编码的RNA适体光敏剂(GRAP)。在光照下,RNA光敏剂可以可控地产生用于靶向细胞调节的活性氧物种。GRAP系统可以被内源刺激和不同波长的光选择性地激活。与它们的蛋白质类似物相比,GRAP具有高度的可编程性,并显示出较少的脱靶效应。我们的结果表明,GRAP能够以高的时间和空间精度进行有效的非侵入性靶细胞消融。我们相信这种新的RNA调节系统将被广泛应用于光遗传学、靶向细胞消融、亚细胞操作和先进成像。基因编码的RNA光敏剂是为了控制ROS的产生而开发的。这些RNA调节剂可以被设计成一个智能平台,用于活细胞成像、受控ROS生成和靶向细胞消融。
Genetically encoded RNA devices have emerged for various cellular applications in imaging and bio-sensing, but their functions as precise regulators in living systems are still limited. Inspired by protein photosensitizers, we propose here a Genetically encoded RNA Aptamer-based Photosensitizer (GRAP). Upon illumination, the RNA photosensitizer can controllably generate reactive oxygen species for targeted cell regulation. The GRAP system can be selectively activated by endogenous stimuli and light of different wavelengths. Compared with their protein analogs, GRAP is highly programmable and exhibit reduced off-target effect. Our results indicate that GRAP enables efficient noninvasive target cell ablation with high temporal and spatial precision. We believe this new RNA regulator system will be widely used for optogenetics, targeted cell ablation, subcellular manipulation, and advanced imaging. Genetically encoded RNA photosensitizer was developed for the controllable generating of ROS. These RNA regulators can be engineered into a smart platform for live-cell imaging, controlled ROS generation, and targeted cell ablation.
原位遗传级联的放大,以成像RNA亚细胞位置。
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影响因子: 15
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