In vivo quantification of spatially varying mechanical properties in developing tissues.
In vivo quantification of spatially varying mechanical properties in developing tissues.
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DOI:
10.1038/nmeth.4101
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发表时间:
2017-03
期刊:
影响因子:
48
通讯作者:
Campàs O
中科院分区:
文献类型:
--
作者:
Serwane F;Mongera A;Rowghanian P;Kealhofer DA;Lucio AA;Hockenbery ZM;Campàs O
It is generally believed that the mechanical properties of the cellular microenvironment and their spatiotemporal variations play a central role in sculpting embryonic tissues, maintaining organ architecture and controlling cell behavior, including cell differentiation. However, no direct in vivo and in situ measurement of mechanical properties within developing 3D tissues and organs has been performed yet. Here we introduce a technique that employs biocompatible ferrofluid microdroplets as local mechanical actuators and allows quantitative spatiotemporal measurements of mechanical properties in vivo. Using this technique, we show that vertebrate body elongation entails spatially-varying tissue mechanics along the anteroposterior axis. Specifically, we find that the zebrafish tailbud is viscoelastic (elastic below a few seconds and fluid after just one minute) and displays decreasing stiffness and increasing fluidity towards its posterior elongating region. This method opens new avenues to study mechanobiology in vivo, both in embryogenesis and in disease processes, including cancer.
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影响因子:
16.6
作者:
Johansen PL;Fenaroli F;Evensen L;Griffiths G;Koster G
通讯作者:
Koster G
影响因子:
41.2
作者:
Chaudhuri O;Gu L;Klumpers D;Darnell M;Bencherif SA;Weaver JC;Huebsch N;Lee HP;Lippens E;Duda GN;Mooney DJ
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Mooney DJ
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Lawton, Andrew K.;Nandi, Amitabha;Holley, Scott A.
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Holley, Scott A.
DOI:
10.1073/pnas.1418732112
发表时间:
2015-02-03
影响因子:
11.1
作者:
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通讯作者:
Lenne, Pierre-Francois
影响因子:
3.4
作者:
Bausch, AR;Möller, W;Sackmann, E
通讯作者:
Sackmann, E