STEM CELL REP:hPSC助力人工造肾

2018-02-10 海北 MedSci原创

人类多功能干细胞(hPSCs)技术的发展对于我们理解肾脏发育过程和相关疾病具有很大的帮助。最近,来自曼彻斯特大学的研究人员重复地将三个基因独特的野生型hPSC系分化成为肾脏祖细胞,并观察到了初步的肾体外形态发生。

人类多功能干细胞(hPSCs)技术的发展对于我们理解肾脏发育过程和相关疾病具有很大的帮助。最近,来自曼彻斯特大学的研究人员重复地将三个基因独特的野生型hPSC系分化成为肾脏祖细胞,并观察到了初步的肾体外形态发生。
体外分化得到的细胞能够表达肾单位和收集管的标志物基因,其中一些基因被报道在人类肾脏疾病中发生突变。慢病毒转导的表达报告基因的hPSC与对照的体外分化情况相似。
而后,研究人员将肾祖细胞皮下植入到免疫缺陷小鼠中去。到12周时,这些细胞形成了可通过生物发光成像检测到的器官样物质。植入物包括含有人毛细血管的灌注肾小球,具有成熟基膜区域的足细胞,以及系膜细胞。在静脉注射荧光低分子量葡聚糖后,在肾小管中能够检测到信号,显示肾小球具有滤液的摄取功能。
因此,研究人员开发了一种方法,能够追踪在体内形成功能性肾单位的hPSC衍生的肾前体,这是hPSC建模和治疗肾脏疾病的关键步骤。

原始出处:
Ioannis Bantounas et al. Generation of Functioning Nephrons by Implanting Human Pluripotent Stem Cell-Derived Kidney Progenitors. Stem Cell Reports, 2018; DOI: 10.1016/j.stemcr.2018.01.008

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    2018-06-16 维他命
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    2018-02-11 gjsgj
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    2018-02-10 1dd8c52fm63(暂无匿称)

    了解了解.继续关注

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