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Methods Mol Biol. 2015;1189:209-18. doi: 10.1007/978-1-4939-1164-6_14.

Probing cell mechanics with subcellular laser dissection of actomyosin networks in the early developing Drosophila embryo.

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EMBL Heidelberg, Meyerhofstrasse 1, 69117, Heidelberg, Germany.


Laser dissection is a useful tool in developmental biology to probe mechanical forces from the subcellular to the tissue/embryo scale. During tissue morphogenesis, cells are equipped with networks of actomyosin that generate forces. Here we present a technique based on near-infrared (NIR) femtosecond (fs) pulsed laser dissection that allows subcellular ablation of actomyosin networks. This technique allows to selectively ablate actomyosin networks while preserving cell plasma membrane. The resulting relaxation of the remaining network after laser dissection is imaged and analyzed to deduce local forces responsible for tissue morphogenesis in the developing Drosophila embryo.

[Indexed for MEDLINE]

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