Cells derived from iPSC can be immunogenic - yes or no?

Cells derived from iPSC can be immunogenic - yes or no?
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iPSC 衍生的细胞可能具有免疫原性 - 是还是否?

DOI:
10.1007/s13238-013-0003-2
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发表时间:
2014-01
期刊:
影响因子:
21.1
通讯作者:
Zhao, Tongbiao
Zhao, Tongbiao
中科院分区:
生物学1区
文献类型:
--
作者:
Cao, Jiani;Li, Xiaoyan;Lu, Xiao;Zhang, Chao;Yu, Honghao;Zhao, Tongbiao

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诱导多能干细胞(iPSCs)是由体细胞中重编程因子的异位表达衍生而来的,可以为再生医学提供无限的自体细胞。从理论上讲,从患者iPSCs中提取的自体细胞应该对宿主具有免疫耐受性,没有任何免疫排斥反应。然而,我们最近的研究发现,通过使用畸胎瘤移植模型,即使是同源ipsc来源的细胞也可以在同源宿主中产生免疫原性(Nature 474:212-215,)。最近有两个研究小组将多能干细胞分化成不同的胚层或细胞,将这些细胞移植到同基因宿主中,并对这些细胞的免疫原性进行了评估。这两项研究都支持我们的结论,即一些特定的但不是所有的iPSC衍生的组织可以具有免疫原性,尽管他们声称iPSC衍生物的免疫原性“可以忽略”或“缺乏”(Nature 494:100-104; Cell Stem Cell 12:407-412)。为了测试从人类iPSC分化出来的具有临床价值的细胞的免疫原性,迫切需要将iPSC技术应用于临床。
The induced pluripotent stem cells (iPSCs), derived by ectopic expression of reprogramming factors in somatic cells, can potentially provide unlimited autologous cells for regenerative medicine. In theory, the autologous cells derived from patient iPSCs should be immune tolerant by the host without any immune rejections. However, our recent studies have found that even syngeneic iPSC-derived cells can be immunogenic in syngeneic hosts by using a teratoma transplantation model (Nature 474:212–215,). Recently two research groups differentiated the iPSCs into different germ layers or cells, transplanted those cells to the syngeneic hosts, and evaluated the immunogenicity of those cells. Both of the two studies support our conclusions that some certain but not all tissues derived from iPSCs can be immunogenic, although they claimed either “negligible” or “lack of” immunogenicity in iPSC derivatives (Nature 494:100–104,; Cell Stem Cell 12:407–412,). To test the immunogenicity of clinically valuable cells differentiated from human iPSCs are emergently required for translation of iPSC technology to clinics.
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