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JoVE Journal
Developmental Biology
Rho1介导的肌动肌蛋白收缩力的光遗传学抑制与 果蝇 胚胎上皮张力的测量
Rho1介导的肌动肌蛋白收缩力的光遗传学抑制与 果蝇 胚胎上皮张力的测量
JoVE Journal
Developmental Biology
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JoVE Journal Developmental Biology
Optogenetic Inhibition of Rho1-Mediated Actomyosin Contractility Coupled with Measurement of Epithelial Tension in Drosophila Embryos

Rho1介导的肌动肌蛋白收缩力的光遗传学抑制与 果蝇 胚胎上皮张力的测量

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1,935 Views
12:35 min
April 14, 2023

DOI: 10.3791/65314-v

Hanqing Guo1,2, Michael Swan3, Bing He1

1Department of Biological Sciences,Dartmouth College, 2School of Life Sciences,Westlake University, 3Department of Molecular Biology,Princeton University

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Please note that some of the translations on this page are AI generated. Click here for the English version.

肌动肌蛋白收缩力在细胞和组织形态发生中起重要作用。然而,在 体内 急性操纵肌动肌蛋白收缩力具有挑战性。该协议描述了一种光遗传学系统,该系统可快速抑制 果蝇 胚胎中Rho1介导的肌动肌蛋白收缩力,揭示了 体内肌动球蛋白失活后上皮张力的立即丧失。

我们的研究研究组织形态发生,发育中复杂三维组织结构的形成。我们对调节形态发生的基因和分子感兴趣,并试图了解形态发生背后的物理原理。例如,机械力是如何产生的以及它们如何驱动组织康复。

丝状肌动蛋白和非肌球蛋白II产生的收缩力,也称为肌动肌蛋白收缩力,是驱动组织形态发生的最重要力量之一。我们目前的研究解决了肌动肌素收缩性如何介导血上皮细胞片的折叠,这是发育中的基本组织构建机制。深入了解肌动肌蛋白收缩性在上皮折叠和其他形态发生过程中的作用需要能够在指定时间和地点快速灭活肌动球蛋白的方法,并记录组织行为和性质的直接影响。

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