Regeneration of the entire human epidermis using transgenic stem cells.

Regeneration of the entire human epidermis using transgenic stem cells.
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DOI:
10.1038/nature24487
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发表时间:
2017-11-16
期刊:
影响因子:
64.8
通讯作者:
De Luca M
De Luca M
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Hirsch T;Rothoeft T;Teig N;Bauer JW;Pellegrini G;De Rosa L;Scaglione D;Reichelt J;Klausegger A;Kneisz D;Romano O;Secone Seconetti A;Contin R;Enzo E;Jurman I;Carulli S;Jacobsen F;Luecke T;Lehnhardt M;Fischer M;Kueckelhaus M;Quaglino D;Morgante M;Bicciato S;Bondanza S;De Luca M

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交界性大疱性表皮病(JEB)是一种严重的,往往是致命的遗传性疾病,由编码基底膜成分层粘连蛋白-332的基因突变引起。幸存的JEB患者发展为慢性皮肤和粘膜伤口,这损害了他们的生活质量并导致皮肤癌。在这里,我们表明,自体转基因角质形成细胞培养再生一个完整的,功能齐全的表皮7岁的孩子患有毁灭性的,危及生命的形式JEB。前病毒整合模式在体内得以维持,表皮更新不会引起任何克隆选择。克隆追踪表明,人类表皮不是由等能祖细胞维持的,而是由有限数量的长寿命干细胞维持的,检测为全克隆,能够在体外和体内广泛自我更新,并产生补充终末分化的角质形成细胞的祖细胞。这项研究提供了一个蓝图,可应用于其他干细胞介导的组合离体细胞和基因疗法。
Junctional Epidermolysis Bullosa (JEB) is a severe, often lethal genetic disease caused by mutations in genes encoding the basement membrane component laminin-332. Surviving JEB patients develop chronic skin and mucosa wounds, which impair their quality of life and lead to skin cancer. Here we show that autologous transgenic keratinocyte cultures regenerated an entire, fully functional epidermis on a 7-year-old child suffering from a devastating, life-threatening form of JEB. The proviral integration pattern was maintained in vivo and epidermal renewal did not cause any clonal selection. Clonal tracing showed that human epidermis is not sustained by equipotent progenitors, but by a limited number of long-lived stem cells, detected as holoclones, able to extensively self-renew in vitro and in vivo and to produce progenitors that replenish terminally differentiated keratinocytes. This study provides a blueprint that can be applied to other stem cell-mediated combined ex vivo cell and gene therapies.
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