Zmym4对于早期的基因表达和面软骨形成是必需的
Karyn Jourdeuil1, Karen M Neilson1, Helene Cousin2
1Department of Anatomy and Cell Biology, George Washington University, School of Medicine and Health Sciences, Washington, DC, United States.
Frontiers in cell and developmental biology
|October 19, 2023
概括
含指MYM蛋白4 (Zmym4) 对于面发育至关重要,调节关键的胚胎基因表达,尽管它与Six1.1没有相互作用. 它的缺失会影响骨软骨的形成.
科学领域:
- 发展生物学 发展生物学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 转录因子Six1对于头骨感官器官发育至关重要,突变会导致头骨面部缺陷.
- 含指MYM蛋白4 (Zmym4) 已知在大脑发育和癌症中的作用,但其在面发育中的功能尚不清楚.
- 基于共享的蛋白质域,Zmym4被确定为Six1的潜在相互作用者.
研究的目的:
- 为了研究Zmym4和Six1.1.之间的相互作用.
- 确定Zmym4在面发育中的作用.
- 阐明Zmym4在胚胎基因表达和组织形成中的功能.
主要方法:
- 共同免疫沉和露西法酶报告剂试验被用于在体外评估Zmym4-Six1相互作用.
- 在胚胎模型中进行了Zmym4敲击和过度表达.
- 分析包括基因表达,神经迁移和面软骨形态.
主要成果:
- 在Zmym4和Six1.1.之间没有发现物理或转录相互作用.
- 在神经边界,神经板,神经峰和前皮外皮中,Zmym4 knockdown显著改变了基因表达.
- 丧失Zmym4导致眼囊和支骨弧基因的表达减少,以及异常的面软骨形态.
结论:
- Zmym4没有作为Six1转录辅因子的功能.
- Zmym4在调节胚胎骨基因表达方面发挥着重要作用.
- Zmym4对于正常的面发育,特别是软骨形成至关重要.
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