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  • Bioengineered analog of stromal cell-derived factor 1 alpha preserves the biaxial mechanical properties of native myocardium after infarction JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS Wang, H., Wisneski, A., Paulsen, M. J., Imbrie-Moore, A., Wang, Z., Xuan, Y., Hernandez, H., Lucian, H. J., Eskandari, A., Thakore, A. D., Parry, J. M., Hironaka, C. E., von Bornstaedt, D., Steele, A. N., Stapleton, L. M., Williams, K. M., Wu, M. A., MacArthur, J. W., Woo, Y. 2019; 96: 165?71
  • Asynchronous fate decisions by single cells collectively ensure consistent lineage composition in the mouse blastocyst NATURE COMMUNICATIONS Saiz, N., Williams, K. M., Seshan, V. E., Hadjantonakis, A. 2016; 7

    Abstract

    Intercellular communication is essential to coordinate the behaviour of individual cells during organismal development. The preimplantation mammalian embryo is a paradigm of tissue self-organization and regulative development; however, the cellular basis of these regulative abilities has not been established. Here we use a quantitative image analysis pipeline to undertake a high-resolution, single-cell level analysis of lineage specification in the inner cell mass (ICM) of the mouse blastocyst. We show that a consistent ratio of epiblast and primitive endoderm lineages is achieved through incremental allocation of cells from a common progenitor pool, and that the lineage composition of the ICM is conserved regardless of its size. Furthermore, timed modulation of the FGF-MAPK pathway shows that individual progenitors commit to either fate asynchronously during blastocyst development. These data indicate that such incremental lineage allocation provides the basis for a tissue size control mechanism that ensures the generation of lineages of appropriate size.

    View details for DOI 10.1038/ncomms13463

    View details for Web of Science ID 000387993300001

    View details for PubMedID 27857135

    View details for PubMedCentralID PMC5120222

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