摘要
再生医学领域取得的巨大进步为构建新生器官铺平了道路。目前,多能干细胞(PSC)可以直接分化形成脑、心、肺、肝、肠、肾等类器官和组织特异性单位,并取得明显成果,但这种细胞聚集体的体外保存仍面临巨大挑战。细胞培养需要氧气与养分,但体外构建的3D类器官缺乏血管系统,所以其寿命、大小和成熟度受限制。目前已有研究尝试进行类器官的血管化。本文着重分析构建类器官尤其是类肾体的基础过程,讨论诱导肾单位成熟的途径,总结实现成熟组织血管化的各种方法,并探讨血管生物学与肾脏发育学领域的进步,为达到体外构建可移植肾脏的远期目标提供了可能性。
Pluripotent stem cells can differentiate into organoids and tissue-specific units, for example, brain, heart, lung, liver, intestine, kidney, etc. However, the deficiency of blood-vascular system limits the size, maturity and lifespan of vitro organoids, there are still challenges in vitro preservation of cell aggregates. A lot of researches have tried to vascularize the organoid at present. This review discussed various channels of renal units maturation and different ways for inducing mature tissue vascularization to provide insights for long-term targets of renal transplantation.
出处
《中国医药》
2016年第12期1882-1886,共5页
China Medicine
基金
国家自然科学基金(81170631、81330019)
关键词
多能干细胞
类器官
细胞分化
Maltipotent stem cells
Organoids
Cell differentiation