Normal skeletal pattern formation in chick limb bud with a mesenchymal hole is mediated by adjustment of cellular properties along the anterior-posterior axis in the limb bud
Copyright © 2022 Elsevier Inc. All rights reserved..
The chick limb bud has plasticity to reconstruct a normal skeletal pattern after a part of mesenchymal mass is excised to make a hole in its early stage of development. To understand the details of hole closure and re-establishment of normal limb axes to reconstruct a normal limb skeleton, we focused on cellular and molecular changes during hole repair and limb restoration. We excised a cube-shaped mass of mesenchymal cells from the medial region of chick hindlimb bud (stage 23) and observed the following morphogenesis. The hole had closed by 15 h after excision, followed by restoration of the limb bud morphology, and the cartilage pattern was largely restored by 48 h. Lineage analysis of the mesenchymal cells showed that cells at the anterior and posterior margins of the hole were adjoined at the hole closure site, whereas cells at the proximal and distal margins were not. To investigate cell polarity during hole repair, we analyzed intracellular positioning of the Golgi apparatus relative to the nuclei. We found that the Golgi apparatus tended to be directed toward the hole among cells at the anterior and posterior margins but not among cells at identical positions in normal limb buds or cells at the proximal and distal hole margins. In the manipulated limb buds, the frequency of cell proliferation was maintained compared with the control side. Tbx3 expression, which was usually restricted to anterior and posterior margins of the limb bud, was temporarily expanded medially and then reverted to a normal pattern as limb reconstruction proceeded, with Tbx3 negative cells reappearing in the medial regions of the limb buds. Thus, mesenchymal hole closure and limb reconstruction are mainly mediated by cells at the anterior and posterior hole margins. These results suggest that adjustment of cellular properties along the anteroposterior axis is crucial to restore limb damage and reconstruct normal skeletal patterns.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:483 |
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| Enthalten in: |
Developmental biology - 483(2022) vom: 12. März, Seite 76-88 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sato, Yuki [VerfasserIn] |
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| Links: |
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| Themen: |
Avian Proteins |
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| Anmerkungen: |
Date Completed 02.03.2022 Date Revised 02.03.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ydbio.2021.12.016 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM335086594 |
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| 245 | 1 | 0 | |a Normal skeletal pattern formation in chick limb bud with a mesenchymal hole is mediated by adjustment of cellular properties along the anterior-posterior axis in the limb bud |
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| 520 | |a Copyright © 2022 Elsevier Inc. All rights reserved. | ||
| 520 | |a The chick limb bud has plasticity to reconstruct a normal skeletal pattern after a part of mesenchymal mass is excised to make a hole in its early stage of development. To understand the details of hole closure and re-establishment of normal limb axes to reconstruct a normal limb skeleton, we focused on cellular and molecular changes during hole repair and limb restoration. We excised a cube-shaped mass of mesenchymal cells from the medial region of chick hindlimb bud (stage 23) and observed the following morphogenesis. The hole had closed by 15 h after excision, followed by restoration of the limb bud morphology, and the cartilage pattern was largely restored by 48 h. Lineage analysis of the mesenchymal cells showed that cells at the anterior and posterior margins of the hole were adjoined at the hole closure site, whereas cells at the proximal and distal margins were not. To investigate cell polarity during hole repair, we analyzed intracellular positioning of the Golgi apparatus relative to the nuclei. We found that the Golgi apparatus tended to be directed toward the hole among cells at the anterior and posterior margins but not among cells at identical positions in normal limb buds or cells at the proximal and distal hole margins. In the manipulated limb buds, the frequency of cell proliferation was maintained compared with the control side. Tbx3 expression, which was usually restricted to anterior and posterior margins of the limb bud, was temporarily expanded medially and then reverted to a normal pattern as limb reconstruction proceeded, with Tbx3 negative cells reappearing in the medial regions of the limb buds. Thus, mesenchymal hole closure and limb reconstruction are mainly mediated by cells at the anterior and posterior hole margins. These results suggest that adjustment of cellular properties along the anteroposterior axis is crucial to restore limb damage and reconstruct normal skeletal patterns | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Cell lineage | |
| 650 | 4 | |a Cell polarity | |
| 650 | 4 | |a Chick limb bud | |
| 650 | 4 | |a Morphological plasticity | |
| 650 | 4 | |a Pattern formation | |
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| 700 | 1 | |a Fujiwara, Momoko |e verfasserin |4 aut | |
| 700 | 1 | |a Nishino, Haruka |e verfasserin |4 aut | |
| 700 | 1 | |a Harada, Rei |e verfasserin |4 aut | |
| 700 | 1 | |a Kawasaki, Eriko |e verfasserin |4 aut | |
| 700 | 1 | |a Morimoto, Ryo |e verfasserin |4 aut | |
| 700 | 1 | |a Ohgo, Shiro |e verfasserin |4 aut | |
| 700 | 1 | |a Wada, Naoyuki |e verfasserin |4 aut | |
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