Nat Commun:科学家开发出大规模生产人类干细胞的新技术

2016-07-15 佚名 生物谷

近日,发表于国际杂志Nature Communications上的一项研究论文中,来自诺丁汉大学、乌普萨拉大学及GE Healthcare的研究人员通过研究开发了一种制造人类干细胞的新方法,该方法或可解决目前大规模生产干细胞的需求,从而为深入理解并且研究开发治疗疾病的新型疗法或将提供新希望。人类多潜能干细胞和未分化的细胞具有潜力分化为机体所有不同类型的细胞,干细胞在疾病模型、药物筛选、再生医学及组

近日,发表于国际杂志Nature Communications上的一项研究论文中,来自诺丁汉大学、乌普萨拉大学及GE Healthcare的研究人员通过研究开发了一种制造人类干细胞的新方法,该方法或可解决目前大规模生产干细胞的需求,从而为深入理解并且研究开发治疗疾病的新型疗法或将提供新希望。

人类多潜能干细胞和未分化的细胞具有潜力分化为机体所有不同类型的细胞,干细胞在疾病模型、药物筛选、再生医学及组织功能领域有着巨大的应用,目前科学家们对干细胞的需求量巨大,未来在临床上及制药工业中的使用量将会持续增加。在现代医药体系中当前这种进行优化应用的干细胞的产生或许并不可行,因为干细胞可用的培养方法要么昂贵,或者就是依赖于一些在人类临床试验中使用不安全的物质。

这项最新研究中,研究人员就开发了一种改善人类干细胞培养的新方法,其或许可以帮助快速且廉价地大规模生产人类干细胞。研究者Sara说道,利用衍生自人类血液中名为间-α抑制剂的蛋白,我们就可以在不需要昂贵耗时的生物基质的情况下在小型培养基中培养出人类多能干细胞,而间-α抑制剂以高浓度存在于人类血液中,同时其也是标准药物纯化方案的副产品。

蛋白质间-α抑制剂可以使得干细胞吸附于未修饰的组织培养塑料表面上,这就可以改善干细胞的生存环境,研究人员Cecilia Anneren说道,由于包被过程是一项非常耗时的过程,而且还会增加人类干细胞培养物的成本,而本文中所开发的新方法则可以大规模地帮助节省时间和成本,同时其也可以帮助后期进行更深入的基础研究和商业应用。

如今研究者打算将创新性的水凝胶技术同间-α抑制剂进行结合来改善当前控制细胞分化的方法,并将其应用于疾病模型研究中,这就可以帮助研究者理解多种疾病的进展,并且也可以在细胞水平上阐明一些罕见疾病比如多发性骨软骨瘤(multiple osteochondroma)的发病机制等。研究者的目标就是复制细胞在机体中所经历的三维环境,以便可以更加精确地进行疾病模拟性研究。

原始出处

Sara Pijuan-Galitó, Christoffer Tamm, Jens Schuster, Maria Sobol, Lars Forsberg, Catherine L. R. Merry & Cecilia Annerén.Human serum-derived protein removes the need for coating in defined human pluripotent stem cell culture.Nat Commun.2016

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    2017-06-27 ylz8403
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    2017-04-07 liye789132251
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    2017-05-10 liuli5079
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近日,来自美国西北大学的研究人员在国际学术期刊Molecular Cancer Research上发表了一篇文章,他们通过研究找到了治疗多形性成胶质细胞瘤及神经胶质瘤干细胞的潜在靶点。多形性成胶质细胞瘤目前仍然是最致命的恶性脑瘤,而神经胶质瘤干细胞会促进治疗抵抗和肿瘤复发。在这项最新研究中,研究人员发现MAPK作用激酶(MNK)是治疗多形性成胶质细胞瘤中神经胶质瘤干细胞群体的潜在靶点。研究分析表明

Nature:“黑化”的干细胞才是皮肤癌形成的真正元凶

最近科学家首次发现了基底细胞癌的细胞起源,并揭示了导致这种侵袭性肿瘤生长的系列事件。基底细胞癌是最常见的一种皮肤癌症。我们的皮肤通过不断更新来保持健康,死细胞会脱落并被新细胞所替代。该过程靠干细胞形成的祖细胞维持,祖细胞能够分裂并分化形成具有完整功能的皮肤细胞。而祖细胞还需要一小群干细胞来支持,通常情况下干细胞会保持静默,当皮肤受到损伤的时候就会活跃起来促进皮肤修复。但是一旦上述过程发生偏差就可能