Publikationsdatum:
2008-09-20
Beschreibung:
Understanding cell morphogenesis during metazoan development requires knowledge of how cells and the extracellular matrix produce and respond to forces. We investigated how apoptosis, which remodels tissue by eliminating supernumerary cells, also contributes forces to a tissue (the amnioserosa) that promotes cell-sheet fusion (dorsal closure) in the Drosophila embryo. We showed that expression in the amnioserosa of proteins that suppress or enhance apoptosis slows or speeds dorsal closure, respectively. These changes correlate with the forces produced by the amnioserosa and the rate of seam formation between the cell sheets (zipping), key processes that contribute to closure. This apoptotic force is used by the embryo to drive cell-sheet movements during development, a role not classically attributed to apoptosis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2757114/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2757114/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Toyama, Yusuke -- Peralta, Xomalin G -- Wells, Adrienne R -- Kiehart, Daniel P -- Edwards, Glenn S -- GM33830/GM/NIGMS NIH HHS/ -- R01 GM033830/GM/NIGMS NIH HHS/ -- R01 GM033830-24/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Sep 19;321(5896):1683-6. doi: 10.1126/science.1157052.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physics Department and Free Electron Laser Laboratory, Duke University, Durham, NC 27708, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18802000" target="_blank"〉PubMed〈/a〉
Schlagwort(e):
Animals
;
*Apoptosis
;
Cell Movement
;
Cell Shape
;
Drosophila melanogaster/cytology/*embryology
;
Embryo, Nonmammalian/*cytology
;
*Embryonic Development
;
Epidermis/cytology/embryology
;
Epithelial Cells/*cytology/physiology
;
Epithelium/*embryology
;
Female
;
Microscopy, Confocal
;
*Morphogenesis
Print ISSN:
0036-8075
Digitale ISSN:
1095-9203
Thema:
Biologie
,
Chemie und Pharmazie
,
Informatik
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
