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Epithelial apoptotic pattern emerges from global and local regulation by cell apical area
Geometry is a fundamental attribute of biological systems, and it underlies cell and tissue dynamics. Cell geometry controls cell-cycle progression and mitosis and thus modulates tissue development and homeostasis. In sharp contrast and despite the extensive characterization of the genetic mechanism...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Cell Press
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10681125/ https://www.ncbi.nlm.nih.gov/pubmed/37827152 http://dx.doi.org/10.1016/j.cub.2023.09.049 |
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author | Cachoux, Victoire M.L. Balakireva, Maria Gracia, Mélanie Bosveld, Floris López-Gay, Jesús M. Maugarny, Aude Gaugué, Isabelle di Pietro, Florencia Rigaud, Stéphane U. Noiret, Lorette Guirao, Boris Bellaïche, Yohanns |
author_facet | Cachoux, Victoire M.L. Balakireva, Maria Gracia, Mélanie Bosveld, Floris López-Gay, Jesús M. Maugarny, Aude Gaugué, Isabelle di Pietro, Florencia Rigaud, Stéphane U. Noiret, Lorette Guirao, Boris Bellaïche, Yohanns |
author_sort | Cachoux, Victoire M.L. |
collection | PubMed |
description | Geometry is a fundamental attribute of biological systems, and it underlies cell and tissue dynamics. Cell geometry controls cell-cycle progression and mitosis and thus modulates tissue development and homeostasis. In sharp contrast and despite the extensive characterization of the genetic mechanisms of caspase activation, we know little about whether and how cell geometry controls apoptosis commitment in developing tissues. Here, we combined multiscale time-lapse microscopy of developing Drosophila epithelium, quantitative characterization of cell behaviors, and genetic and mechanical perturbations to determine how apoptosis is controlled during epithelial tissue development. We found that early in cell lives and well before extrusion, apoptosis commitment is linked to two distinct geometric features: a small apical area compared with other cells within the tissue and a small relative apical area with respect to the immediate neighboring cells. We showed that these global and local geometric characteristics are sufficient to recapitulate the tissue-scale apoptotic pattern. Furthermore, we established that the coupling between these two geometric features and apoptotic cells is dependent on the Hippo/YAP and Notch pathways. Overall, by exploring the links between cell geometry and apoptosis commitment, our work provides important insights into the spatial regulation of cell death in tissues and improves our understanding of the mechanisms that control cell number and tissue size. |
format | Online Article Text |
id | pubmed-10681125 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Cell Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-106811252023-11-20 Epithelial apoptotic pattern emerges from global and local regulation by cell apical area Cachoux, Victoire M.L. Balakireva, Maria Gracia, Mélanie Bosveld, Floris López-Gay, Jesús M. Maugarny, Aude Gaugué, Isabelle di Pietro, Florencia Rigaud, Stéphane U. Noiret, Lorette Guirao, Boris Bellaïche, Yohanns Curr Biol Article Geometry is a fundamental attribute of biological systems, and it underlies cell and tissue dynamics. Cell geometry controls cell-cycle progression and mitosis and thus modulates tissue development and homeostasis. In sharp contrast and despite the extensive characterization of the genetic mechanisms of caspase activation, we know little about whether and how cell geometry controls apoptosis commitment in developing tissues. Here, we combined multiscale time-lapse microscopy of developing Drosophila epithelium, quantitative characterization of cell behaviors, and genetic and mechanical perturbations to determine how apoptosis is controlled during epithelial tissue development. We found that early in cell lives and well before extrusion, apoptosis commitment is linked to two distinct geometric features: a small apical area compared with other cells within the tissue and a small relative apical area with respect to the immediate neighboring cells. We showed that these global and local geometric characteristics are sufficient to recapitulate the tissue-scale apoptotic pattern. Furthermore, we established that the coupling between these two geometric features and apoptotic cells is dependent on the Hippo/YAP and Notch pathways. Overall, by exploring the links between cell geometry and apoptosis commitment, our work provides important insights into the spatial regulation of cell death in tissues and improves our understanding of the mechanisms that control cell number and tissue size. Cell Press 2023-11-20 /pmc/articles/PMC10681125/ /pubmed/37827152 http://dx.doi.org/10.1016/j.cub.2023.09.049 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). |
spellingShingle | Article Cachoux, Victoire M.L. Balakireva, Maria Gracia, Mélanie Bosveld, Floris López-Gay, Jesús M. Maugarny, Aude Gaugué, Isabelle di Pietro, Florencia Rigaud, Stéphane U. Noiret, Lorette Guirao, Boris Bellaïche, Yohanns Epithelial apoptotic pattern emerges from global and local regulation by cell apical area |
title | Epithelial apoptotic pattern emerges from global and local regulation by cell apical area |
title_full | Epithelial apoptotic pattern emerges from global and local regulation by cell apical area |
title_fullStr | Epithelial apoptotic pattern emerges from global and local regulation by cell apical area |
title_full_unstemmed | Epithelial apoptotic pattern emerges from global and local regulation by cell apical area |
title_short | Epithelial apoptotic pattern emerges from global and local regulation by cell apical area |
title_sort | epithelial apoptotic pattern emerges from global and local regulation by cell apical area |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10681125/ https://www.ncbi.nlm.nih.gov/pubmed/37827152 http://dx.doi.org/10.1016/j.cub.2023.09.049 |
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