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首页> 外文期刊>Journal of tissue engineering and regenerative medicine >Production of pancreatic progenitor cells from human induced pluripotent stem cells using a three‐dimensional suspension bioreactor system
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Production of pancreatic progenitor cells from human induced pluripotent stem cells using a three‐dimensional suspension bioreactor system

机译:使用三维悬浮生物反应器系统生产来自人诱导多能干细胞的胰腺祖细胞

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Abstract Islet replacement is a promising strategy for the treatment of patients with type 1 diabetes and patients who have undergone total pancreatectomy. Recent progress in cellular reprogramming technology may allow the transplantation of a patient's own pancreatic cells. Although many studies have reported the differentiation of pancreatic progenitor cells from mouse and human pluripotent stem cells (PSCs), obtaining sufficient cell numbers for clinical applications remains problematic. Here, we describe the mass production of human pancreatic progenitor cells from human induced (i)PSCs using a three‐dimensional suspension bioreactor system. Bioreactor culture of cells with stage‐specific provision of growth factors and small compounds for 17?days produced approximately 1.6??×??10 8 ?cells/100?ml vessel in a single batch. About 95% of cells expressed pancreatic and duodenal homeobox factor 1, and 22% co‐expressed the transcription factor NKX6.1. Furthermore, culture of pancreatic progenitor cells for an additional 2?weeks yielded mature pancreatic cells, including C‐peptide‐, glucagon‐ and trypsin‐expressing cell populations. Moreover, differentiated β‐cells secreted insulin in response to increased glucose in vitro . These findings suggest that a three‐dimensional suspension culture system can generate human pancreatic progenitor cells from human iPSCs. Further optimization of culture conditions should provide sufficient functional islet cells for transplantation therapy. Copyright ? 2017 John Wiley & Sons, Ltd.
机译:摘要胰岛替代品是治疗1型糖尿病患者的有希望的策略和经历全胰腺切除术的患者。细胞重编程技术的最近进展可以允许移植患者自己的胰腺细胞。尽管许多研究报告了来自小鼠和人多能干细胞(PSC)的胰腺祖细胞的分化,但获得足够的临床应用的细胞数仍然存在问题。在这里,我们使用三维悬浮生物反应器系统描述来自人诱导的(I)PSC的人胰腺祖细胞的大规模生产。细胞生物反应器培养具有阶段特异性的生长因子和小化合物17?天产生约1.6 ??×10 8?细胞/100μl血管在单批次中。大约95%的细胞表达胰腺和十二指肠Homeobox因子1,22%共同表达转录因子NKX6.1。此外,胰腺祖细胞的培养另外2?周产生成熟的胰腺细胞,包括C-肽 - ,胰高血糖素和胰蛋白酶的细胞群。此外,分化的β细胞分泌胰岛素响应于体外增加的葡萄糖。这些发现表明,三维悬浮培养系统可以从人IPSC产生人胰腺祖细胞。进一步优化培养条件应为移植治疗提供足够的功能性胰岛细胞。版权? 2017年John Wiley& SONS,LTD.

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