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Nat Protoc:科学家们培育出人类心脏3D模型

2018-04-03 佚名 “细胞”微信号

心脏是胚胎期第一个发育的器官,同时也是引发家长们顾虑的第一个器官。对于准妈妈们来说,怀孕的喜悦往往会被接受医生检查的不安感所掩盖。家长们与医生们往往要考虑母亲的健康以及接受药物治疗后会对胎儿可能产生的影响。美国FDA要求所有药物必须注明对孕妇以及婴儿可能产生的威胁。一些药物标签上注明了其在动物水平的检测中没有发现致病风险,但还没有在孕妇群体中进行仔细的研究。

心脏是胚胎期第一个发育的器官,同时也是引发家长们顾虑的第一个器官。对于准妈妈们来说,怀孕的喜悦往往会被接受医生检查的不安感所掩盖。家长们与医生们往往要考虑母亲的健康以及接受药物治疗后会对胎儿可能产生的影响。美国FDA要求所有药物必须注明对孕妇以及婴儿可能产生的威胁。一些药物标签上注明了其在动物水平的检测中没有发现致病风险,但还没有在孕妇群体中进行仔细的研究。

Ma等人一直致力于研究人源诱导多能性干细胞(ips)技术在组织再生以及干细胞工程方面的应用。“这类干细胞能够分化形成机体的任何类型的细胞”。多能性干细胞能够再生形成心脏组织,但Ma等人相信他们能够走得更进一步。

作者等人基于生物材料以及干细胞技术,建立了心脏的3D组织模型,该模型能够模拟人类心脏的早期发育阶段。通过在组织培养皿中加入一层多聚物,以及在其表面蚀刻形成微小的痕迹。范细胞能够与上述痕迹牢固地结合。由于干细胞本身并不会粘附在多聚物上,因此他们能够沿着蚀刻痕迹生长,并最终发育形成3D结构。作者等人的研究重点在于心脏组织,但其它实验室也可以利用上述技术建立其它组织以及器官。相关结果发表在最近一期的《Nature Protocol》杂志上。

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    2018-09-02 liye789132251
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    2018-04-05 sunylz
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    2018-04-03 神功盖世

    0

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    2018-04-03 医者仁心5538

    好消息

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