在皮骨发生过程中,非基因组甲状腺激素信号传递的共同调节功能
Elias Taylor1, Megan Corsini2, Andreas Heyland2
1College of Biological Sciences, University of Guelph, Integrative Biology, Guelph, ON, N1G-2W1, Canada. elias@uoguelph.ca.
EvoDevo
|August 7, 2024
概括
甲状腺激素 (THs) 加快了海,海星和易碎星的骨架发生. 通过MAPK通路传递TH信号似乎在皮的发育和变形中得到保护.
科学领域:
- 发展生物学 发展生物学
- 内分泌学 在内分泌学.
- 海洋生物学 海洋生物学
背景情况:
- 甲状腺激素 (THs) 对许多动物的转化和发育至关重要.
- 有证据表明,TH信号调节了皮动物骨生成等关键过程.
研究的目的:
- 调查TH信号在骨发生过程中是否是 Echinozoa 和 Asterozoa 的共同特征.
- 探索TH在皮变形发育中的作用机制.
主要方法:
- 用甲状腺激素类似物和光标记类似物进行治疗.
- 在海胚胎中识别产生甲状腺素的细胞.
- 免疫组织化学分析MAPK酸化途径.
主要成果:
- TH治疗极大地加速了海,海星和易碎星的骨架发生.
- 观察到TH结合在靠近骨发生区域的细胞和细胞膜/细胞核内的细胞中.
- 在早期的海胚胎中发现了甲氧氨酸阳性细胞.
- THs似乎通过MAPK信号来启动骨发生.
结论:
- 骨发生的TH调节可能是皮发育中的一个保存机制.
- TH信号可能通过保留路径或重复选择来协调变态发展.
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