In vivo image analysis using iRFP transgenic mice.

In vivo image analysis using iRFP transgenic mice.
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DOI:
10.1538/expanim.63.311
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发表时间:
2014
影响因子:
2.4
通讯作者:
Miwa Y
Miwa Y
中科院分区:
医学4区
文献类型:
--
作者:
Tran MT;Tanaka J;Hamada M;Sugiyama Y;Sakaguchi S;Nakamura M;Takahashi S;Miwa Y

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具有在光学窗口内的光波长的荧光蛋白是体内成像技术的改进之一。近红外荧光蛋白(Near-infrared fluorescent protein,iRFP)是一种稳定、无毒的蛋白质,在不添加外源底物的情况下,可在近红外光学窗口内发射荧光。然而,利用体内iRFP模型的研究尚未发表。在这里,我们报告了具有无处不在的近红外荧光表达的转基因iRFP小鼠的产生。在iRFP转基因小鼠和WT小鼠交配产生的约50%的后代中观察到iRFP表达。iRFP小鼠的血清和血细胞指数以及体重与WT小鼠相似。在新生和成年iRFP小鼠中均检测到激发波长为690 nm、发射波长为713 nm的红色荧光。我们还在iRFP小鼠的整个器官中检测到荧光发射,包括脑、心脏、肝、肾、脾、肺、胰腺、骨、睾丸、胸腺和脂肪组织。因此,iRFP转基因小鼠因此可以是用于各种类型的体内成像的有用工具。
Fluorescent proteins with light wavelengths within the optical window are one of the improvements in in vivo imaging techniques. Near-infrared (NIR) fluorescent protein (iRFP) is a stable, nontoxic protein that emits fluorescence within the NIR optical window without the addition of exogenous substrate. However, studies utilizing an in vivo iRFP model have not yet been published. Here, we report the generation of transgenic iRFP mice with ubiquitous NIR fluorescence expression. iRFP expression was observed in approximately 50% of the offspring from a matings between iRFP transgenic and WT mice. The serum and blood cell indices and body weights of iRFP mice were similar to those of WT mice. Red fluorescence with an excitation wavelength of 690 nm and an emission wavelength of 713 nm was detected in both newborn and adult iRFP mice. We also detected fluorescence emission in whole organs of the iRFP mice, including the brain, heart, liver, kidney, spleen, lung, pancreas, bone, testis, thymus, and adipose tissue. Therefore, iRFP transgenic mice may therefore be a useful tool for various types of in vivo imaging.
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期刊: Science (New York, N.Y.)
影响因子: --
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