Article ; Online: Cellular protrusions in 3D: Orchestrating early mouse embryogenesis.
Seminars in cell & developmental biology
2022 Volume 129, Page(s) 63–74
Abstract: Cellular protrusions generated by the actin cytoskeleton are central to the process of building the body of the embryo. Problems with cellular protrusions underlie human diseases and syndromes, including implantation defects and pregnancy loss, ... ...
Abstract | Cellular protrusions generated by the actin cytoskeleton are central to the process of building the body of the embryo. Problems with cellular protrusions underlie human diseases and syndromes, including implantation defects and pregnancy loss, congenital birth defects, and cancer. Cells use protrusive activity together with actin-myosin contractility to create an ordered body shape of the embryo. Here, I review how actin-rich protrusions are used by two major morphological cell types, epithelial and mesenchymal cells, during collective cell migration to sculpt the mouse embryo body. Pre-gastrulation epithelial collective migration of the anterior visceral endoderm is essential for establishing the anterior-posterior body axis. Gastrulation mesenchymal collective migration of the mesoderm wings is crucial for body elongation, and somite and heart formation. Analysis of mouse mutants with disrupted cellular protrusions revealed the key role of protrusions in embryonic morphogenesis and embryo survival. Recent technical approaches have allowed examination of the mechanisms that control cell and tissue movements in vivo in the complex 3D microenvironment of living mouse embryos. Advancing our understanding of protrusion-driven morphogenesis should provide novel insights into human developmental disorders and cancer metastasis. |
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MeSH term(s) | Actins/metabolism ; Animals ; Cell Movement ; Cell Surface Extensions/metabolism ; Embryonic Development ; Endoderm ; Female ; Gastrulation ; Humans ; Mesoderm ; Mice ; Pregnancy |
Chemical Substances | Actins |
Language | English |
Publishing date | 2022-05-13 |
Publishing country | England |
Document type | Journal Article ; Review ; Research Support, N.I.H., Extramural |
ZDB-ID | 1312473-0 |
ISSN | 1096-3634 ; 1084-9521 |
ISSN (online) | 1096-3634 |
ISSN | 1084-9521 |
DOI | 10.1016/j.semcdb.2022.05.005 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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