Photoporation of biomolecules into single cells in living vertebrate embryos induced by a femtosecond laser amplifier.

Photoporation of biomolecules into single cells in living vertebrate embryos induced by a femtosecond laser amplifier.
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DOI:
10.1371/journal.pone.0027677
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Tanaka M
Tanaka M
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Hosokawa Y;Ochi H;Iino T;Hiraoka A;Tanaka M

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将生物分子引入活体动物细胞是分子和发育生物学研究中最重要的技术之一,并具有潜在的广泛生物医学意义。在这里,我们报告说,生物分子可以被引入到活的脊椎动物胚胎的单细胞中,通过使用飞秒激光放大器,具有高脉冲能量和低重复频率的双折射。首先,我们通过将葡聚糖、吗啉代寡核苷酸或DNA质粒引入斑马鱼、鸡、鲨鱼和小鼠胚胎的靶向单细胞中来证实这种纯化技术的效率。其次,我们证明了飞秒激光照射有效地将DNA质粒递送到鸡胚的单个神经元中。最后,我们通过传递mRNA成功地操纵了斑马鱼胚胎中单个神经元的命运。我们的观察结果表明,使用飞秒激光具有高脉冲能量和低重复率的纯化提供了一种新的方式来操纵单个细胞的功能(S)在广泛的脊椎动物胚胎通过引入选定的生物分子。
Introduction of biomolecules into cells in living animals is one of the most important techniques in molecular and developmental biology research, and has potentially broad biomedical implications. Here we report that biomolecules can be introduced into single cells in living vertebrate embryos by photoporation using a femtosecond laser amplifier with a high pulse energy and a low repetition rate. First, we confirmed the efficiency of this photoporation technique by introducing dextran, morpholino oligonucleotides, or DNA plasmids into targeted single cells of zebrafish, chick, shark, and mouse embryos. Second, we demonstrated that femtosecond laser irradiation efficiently delivered DNA plasmids into single neurons of chick embryos. Finally, we successfully manipulated the fate of single neurons in zebrafish embryos by delivering mRNA. Our observations suggest that photoporation using a femtosecond laser with a high pulse energy and low repetition rate offers a novel way to manipulate the function(s) of individual cells in a wide range of vertebrate embryos by introduction of selected biomolecules.
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