File:Network of microlumens in embryos and description of the model.png

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Fig 1. Network of microlumens in embryos and description of the model.

(A) Schematic of the microlumen coarsening process in a cell aggregate or embryo (tight junctions are marked in red) (B) Examples of microlumen networks in various early embryos. Left: fluorescence microscopy confocal section of a mouse embryo at 32-cell stage [19]. Center: Electron micrograph of a 28-cell C. elegans embryo [27]. Right: Electron micrograph of a 9-cell rhesus monkey embryo [23]. (C) Lumens are modeled as distinct compartments interconnected through an intercellular bridge. They can exchange water (v) and solutes (s) with each others through the bridge (fluxes and ) and with surrounding cells by active pumping of rate ja and through passive permeation of coefficients λv, λs. (D) Parametrization of the two-lumen system: each lumen is characterized by its half-length (where Ai is the lumen area), its number of moles Ni (leading to a homogeneous concentration ) and its pressure Pi − p0 ∝ γ/Li. The intercellular bridge is characterized by its length ℓ(t), its thickness e0, and its profiles of solute concentration c(x) and hydrostatic pressure p(x) along its length. The system is supposed embedded in an infinite cellular medium, playing the role of chemiostat of concentration c0 and barostat of pressure p0.
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Source https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1009333 Le Verge-Serandour M, Turlier H (2021) A hydro-osmotic coarsening theory of biological cavity formation. PLoS Comput Biol 17(9): e1009333. https://doi.org/10.1371/journal.pcbi.1009333
Author Le Verge-Serandour M, Turlier H
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Copyright: © 2021 Le Verge-Serandour, Turlier. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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current21:20, 27 August 2024Thumbnail for version as of 21:20, 27 August 20244,400 × 1,910 (5.36 MB)Rasbak (talk | contribs){{Information |description=Fig 1. Network of microlumens in embryos and description of the model.<br> (A) Schematic of the microlumen coarsening process in a cell aggregate or embryo (tight junctions are marked in red) (B) Examples of microlumen networks in various early embryos. Left: fluorescence microscopy confocal section of a mouse embryo at 32-cell stage [19]. Center: Electron micrograph of a 28-cell C. elegans embryo [27]. Right: Electron micrograph of a 9-cell rhesus monkey embryo [23...

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