Cell:干细胞来源胰岛B细胞 未来或可根治糖尿病

2014-10-22 佚名 生物谷

随着人们生活水平的提高,糖尿病也已经成为困扰许多人的"富贵病"之一。这也使得糖尿病药物市场成为了世界许多生物医药巨头的兵家必争之地。一直以来,药物研发人员都希望能够开发出一种与患者有高度相容性,且能够"智能"响应患者体内血糖变化而不必进行反复注射的疗法。而最近,哈佛大学的研究人员已经朝这一方向又迈出了可喜的一步。他们利用干细胞分化形成了大量的胰岛B细胞。与此前的一些类似实验不同,此次研究人员获得

随着人们生活水平的提高,糖尿病也已经成为困扰许多人的"富贵病"之一。这也使得糖尿病药物市场成为了世界许多生物医药巨头的兵家必争之地。一直以来,药物研发人员都希望能够开发出一种与患者有高度相容性,且能够"智能"响应患者体内血糖变化而不必进行反复注射的疗法。而最近,哈佛大学的研究人员已经朝这一方向又迈出了可喜的一步。他们利用干细胞分化形成了大量的胰岛B细胞。与此前的一些类似实验不同,此次研究人员获得的细胞表现出成熟胰岛B细胞的特征,能够通过接受钙离子信号对血糖浓度变化作出响应进而响应调节胰岛素的分泌量。

负责这一研究的Doug Melton将这些细胞形象的比喻为一个个的"茶包",当水进入后,茶叶中的成分就会时放出来。这一现象也已经通过小鼠试验得到证实。

近年来,胰岛素药物的研究一直呈现出百家争鸣的情况。一些治疗糖尿病的新方法、新载药系统不断被开发出来,如去年MIT和UNC的联合研究团队开发的纳米颗粒载药系统就能十分有效的输送胰岛素。然而,如此多的疗法却只能使糖尿病患者通过接受治疗稳定病情。此次哈佛大学研究人员的研究成果朝着攻克糖尿病,使糖尿病患者过上正常人的生活又迈进了一步。不过需要指出的是,这一研究目前还处于十分初级的阶段,距离真正进入临床还有很长一段路要走。

原始出处:

Pagliuca FW1, Millman JR1, Gürtler M1, Segel M1, Van Dervort A1, Ryu JH1, Peterson QP1, Greiner D2, Melton DA3.Generation of Functional Human Pancreatic β Cells In Vitro.Cell. 2014 Oct 9;159(2):428-39. doi: 10.1016/j.cell.2014.09.040.


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    2015-04-19 baoya
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    2015-06-08 ljjj1053

    好好学习学习

    0

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    2015-04-11 x35042875

    控制好糖尿病可能提高肝硬化患者的预后。

    0

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    2014-10-24 jeanqiuqiu
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    2015-03-06 维他命

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