在子宫内生长限制过程中,氧基细胞的代谢重编程
Hannah Peters1, Camille M Fung2, Robert W Dettman3
1Department of Pediatrics, Section of Neonatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
Developmental neuroscience
|September 15, 2025
概括
宫内生长限制 (IUGR) 对男性和女性婴儿的影响不同,男性显示线粒体功能受损,这可能解释了性别特异的神经发育结果.
科学领域:
- 神经科学是一个神经科学.
- 发育生物学 发展生物学
- 线粒体生物学 线粒体生物学
背景情况:
- 宫内生长限制 (IUGR) 与白质损伤 (WMI) 和神经发育障碍 (如脑) 有关.
- 在IUGR中WMI的性二态表明潜在的性别特异性机制.
- 在IUGR中,能量故障是怀疑WMI的贡献者.
研究的目的:
- 在IUGR的小鼠模型中,研究小寡细胞 (OL) 分化和转录组的性别特异性变化.
- 来自IUGR小鼠的OLs中评估线粒体呼吸.
主要方法:
- 使用胎盘缺陷诱导的IUGR小鼠模型.
- 采用细胞特异性表位标记和RNA隔离来分析OL转录组.
- 使用Agilent海马技术评估OL线粒体呼吸.
主要成果:
- 在IUGR雌性中观察到性别特异性OL分化的停止,以后追赶.
- 在IUGR中发现了氧化酸化 (OXPHOS) 基因的下调.
- 与IUGR雌性相比,IUGR雄性对电子运输链 (ETC) 基因和蛋白质的下调更大,线粒体呼吸和ATP生成减少.
结论:
- 在IUGR中证明了OL分化和线粒体代谢的性别特异性差异.
- 这些发现为IUGR中性别特异的神经发育结果提供了洞察力.
- 为IUGR相关的WMI开发有针对性的干预提供了基础.
相关概念视频
01:29Somatic to iPS Cell Reprogramming
2.6K
Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012...
2.6K
01:24Methods of Nuclear Reprogramming
2.1K
Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
2.1K