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Title

AFM and microrheology in the zebrafish embryo yolk cell

AuthorsMarsal, María; Jorba, Ignasi; Rebollo, Elena ; Luque, Tomás; Navajas, Daniel; Martín-Blanco, Enrique
Issue Date29-Nov-2017
PublisherJournal of Visualized Experiments
CitationJournal of Visualized Experiments 129: e56224 (2017)
AbstractElucidating the factors that direct the spatio-temporal organization of evolving tissues is one of the primary purposes in the study of development. Various propositions claim to have been important contributions to the understanding of the mechanical properties of cells and tissues in their spatiotemporal organization in different developmental and morphogenetic processes. However, due to the lack of reliable and accessible tools to measure material properties and tensional parameters in vivo, validating these hypotheses has been difficult. Here we present methods employing atomic force microscopy (AFM) and particle tracking with the aim of quantifying the mechanical properties of the intact zebrafish embryo yolk cell during epiboly. Epiboly is an early conserved developmental process whose study is facilitated by the transparency of the embryo. These methods are simple to implement, reliable, and widely applicable since they overcome intrusive interventions that could affect tissue mechanics. A simple strategy was applied for the mounting of specimens, AFM recording, and nanoparticle injections and tracking. This approach makes these methods easily adaptable to other developmental times or organisms
Publisher version (URL)http://dx.doi.org/10.3791/56224
URIhttp://hdl.handle.net/10261/174589
DOI10.3791/56224
E-ISSN1940-087X
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