Enhanced Transfection Efficiency in Laser-Induced Stress Wave-Assisted Gene Transfer at Low Laser Fluence by Increasing Pressure Impulse

Enhanced Transfection Efficiency in Laser-Induced Stress Wave-Assisted Gene Transfer at Low Laser Fluence by Increasing Pressure Impulse
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通过增加压力脉冲提高低激光通量下激光诱导应力波辅助基因转移的转染效率

DOI:
10.1143/apex.1.038001
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发表时间:
2008
影响因子:
2.3
通讯作者:
M. Obara
M. Obara
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
S. Takano;Shunichi Sato;M. Terakawa;Hiroshi Asida;H. Okano;M. Obara

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为了提高基因传递的纳秒脉冲激光诱导的应力波的基础上的转染效率,我们研究了不同类型的透明材料,聚(对苯二甲酸乙二醇酯)片,聚(乙烯醇)凝胶,和水,这是放置在激光靶等离子体约束。我们发现,水的使用是最有效的多脉冲激光照射过程中保持一个大的压力脉冲,因此,高转染效率在大鼠皮肤在体内在一个相对较低的激光能量密度为0.7 J/cm 2。在此能量密度下,通过石英纤维的稳定激光传输得到证实,允许我们的基因递送技术的内窥镜应用。
To improve transfection efficiency in gene delivery based on nanosecond pulsed laser-induced stress waves, we examined different types of transparent materials, a poly(ethylene terephthalate) sheet, poly(vinyl alcohol) gel, and water, which were placed on a laser target for plasma confinement. We found that the use of water was most effective for maintaining a large pressure impulse during multipulse laser irradiation and, as a result, high transfection efficiency was demonstrated in rat skin in vivo at a relatively low laser fluence of 0.7 J/cm2. At this fluence, steady laser transmission through quartz fibers was confirmed, allowing endoscopic application of our gene delivery technique.
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