通过Col1α2-Cre介导的重组发生在各种细胞类型中,原因是表皮质细胞中的Cre表达
Yuzuru Matsumoto1, Shinya Ikeda1,2, Takeshi Kimura1,3
1Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
Scientific reports
|December 19, 2023
概括
科尔1α2-iCre驱动线显示出比预期更广泛的活动,在纤维细胞以外的细胞进行重组. 这种Cre重组发生在发育早期,对成年小鼠的各种细胞类型产生影响.
科学领域:
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
- 细胞生物学 细胞生物学
背景情况:
- 克雷-loxP系统对于基因操纵至关重要,但克雷驱动器系经常表现出异于目标的重组.
- 确定精确的Cre活动对于准确的实验解释至关重要.
- 纤维细胞系的定义很差,因为缺乏特定的标记物.
研究的目的:
- 为了研究Col1α2-iCre驱动线的Cre重组活性.
- 确定Col1α2-iCre. 的目标细胞类型的全部谱.
- 了解Col1α2-iCre介导的重组的发育时间.
主要方法:
- 使用双光克雷记者鼠标线来可视化重组.
- 分析了成年小鼠在各种组织中的重组模式.
- 检查胚胎发育以追踪重组的起源.
主要成果:
- 在多种细胞类型中检测到Col1α2-iCre介导的重组,包括造血细胞,心肌细胞,上皮细胞和神经细胞,而不仅仅是介质细胞.
- 在胚胎早期发育期间,在胃流动之前,在表细胞中观察到重组.
- 这种早期活动解释了在成年组织中观察到的广泛重组.
结论:
- Col1α2-iCre驱动器线表现出明显更广泛的活动,而不是以前的特征.
- 通过Col1α2-iCre进行早期胚胎重组,有助于其广泛的细胞类型分布.
- 来自Col1α2-iCre模型的实验结果需要仔细解释,因为它的广泛活动.
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