A Dual-Color Far-Red to Near-Infrared Firefly Luciferin Analogue Designed for Multiparametric Bioluminescence Imaging

A Dual-Color Far-Red to Near-Infrared Firefly Luciferin Analogue Designed for Multiparametric Bioluminescence Imaging
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专为多参数生物发光成像设计的双色远红至近红外萤火虫荧光素类似物

DOI:
10.1002/ange.201405955
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Jathoul A
Jathoul A
中科院分区:
--
文献类型:
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作者:
Jathoul A

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红移生物荧光发射器可以改善体内组织渗透和信号量化,并导致甲虫荧光素类似物的发展,这种类似物可以引发萤火虫荧光素酶(Fluc)的红移生物发光。然而,与天然荧光素不同的是,没有一种荧光素被证明能在不同的荧光素酶下发出不同的颜色。我们已经合成并测试了第一个双色,远红到近红外(nIR)发射的甲虫荧光素类似物,它类似于天然荧光素,具有pH依赖的荧光光谱,并且在不同的工程Fluc酶下发出不同颜色的生物荧光。我们的模拟物在不同的Fluc突变体中产生不同的远红至近红外发射最大值,最高可达λmax=706 nm。这是在不使用共振能量转移受体的情况下报道的红移最多的生物发光。这种改进应该允许使用多参数深层组织生物发光成像更有效地探测组织。
Red‐shifted bioluminescent emitters allow improved in vivo tissue penetration and signal quantification, and have led to the development of beetle luciferin analogues that elicit red‐shifted bioluminescence with firefly luciferase (Fluc). However, unlike natural luciferin, none have been shown to emit different colors with different luciferases. We have synthesized and tested the first dual‐color, far‐red to near‐infrared (nIR) emitting analogue of beetle luciferin, which, akin to natural luciferin, exhibits pH dependent fluorescence spectra and emits bioluminescence of different colors with different engineered Fluc enzymes. Our analogue produces different far‐red to nIR emission maxima up toλmax=706 nm with different Fluc mutants. This emission is the most red‐shifted bioluminescence reported without using a resonance energy transfer acceptor. This improvement should allow tissues to be more effectively probed using multiparametric deep‐tissue bioluminescence imaging.
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Luc 基因:将颜色引入生物发光测定。
DOI: --
发表时间: 1990
期刊: Journal of bioluminescence and chemiluminescence (Print)
影响因子: --
作者:
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通讯作者: Keith V. Wood