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在家猫中诱导多能干细胞类干细胞的生成,表征和分化

Ryoji Kanegi^1,2, Shingo Hatoya^1,2, Kazuto Kimura^1,2

¹Department of Advanced Pathobiology, Graduate School of Veterinary Sciences, Osaka Metropolitan University, Osaka 598-8531, Japan.

The Journal of reproduction and development

|October 25, 2023

概括

研究人员从家猫胚胎纤维细胞中产生诱导多能干细胞 (iPS). 这些类似iPS的细胞可以分化为多种细胞类型,为猫的疾病建模和再生医学提供了潜力.

科学领域:

干细胞生物学干细胞生物学
比较医学是一种比较医学.
遗传学是一个遗传学.

背景情况:

诱导多能干细胞 (iPS) 由于它们的分化潜力,对疾病建模和再生疗法具有前景.
家庭猫是自发疾病的宝贵模型,使猫类iPS细胞生成对研究至关重要.
以前用于猫类iPS细胞生成的方法可能不是最佳的.

研究的目的:

从家猫胚胎纤维细胞中提取和表征诱导多能干细胞 (iPS) 类细胞.
评估这些猫类iPS类细胞在疾病建模和移植应用中的潜力.

主要方法:

猫胚胎纤维细胞的逆转录病毒感染与小鼠重编程因子 (Oct3/4,Klf4,Sox2,c-Myc).
在无活化的SNL 76/7料细胞上培养转染细胞.
补充基本纤维细胞生长因子 (bFGF) 和不同培养基的评估 (KnockOut血清替代与胎儿牛血清).

主要成果:

产生平坦,紧的iPS类殖民地,类似于人类iPS殖民地.
确定殖民地形成和iPS类细胞维持/增殖的最佳条件.
对iPS类细胞的表征证实了胚胎干细胞标记物的表达,正常的肌型,扩展的增殖能力 (超过45个通道),以及分化为三个胚胎层.
成功地静止了外部重编程因子 (Oct3/4,Klf4,Sox2).
类似iPS的细胞无法形成瘤.

结论:

这项研究报告了第一次成功建立和表征猫类iPS类细胞.
衍生出来的猫类iPS类细胞表现出多能性和分化能力,得到了bFGF的支持.
这些细胞代表了猫类疾病建模和潜在的治疗应用的重大进展.

关键词:

基本的纤维细胞生长因子猫科动物猫科动物血液构成系的血缘系.神经干细胞的神经干细胞转基因沉默是指对转基因进行沉默.

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