Publicado en: Cell Stem Cell
Transit-amplifying nephron progenitor cells (NPCs) generate all of the nephrons of the mammalian kidney during development. Their limited numbers, poor in vitro expansion, and difficult accessibility in humans have slowed basic and translational research into renal development and diseases. Here, we show that with appropriate 3D culture conditions, it is possible to support long-term expansion of primary mouse and human fetal NPCs as well as NPCs derived from human induced pluripotent stem cells (iPSCs). Expanded NPCs maintain genomic stability, molecular homogeneity, and nephrogenic potential in vitro, ex vivo, and in vivo. Cultured NPCs are amenable to gene targeting and can form nephron organoids that engraft in vivo, functionally couple to the host’s circulatory system, and produce urine-like metabolites via filtration. Together, these findings provide a technological platform for studying human nephrogenesis, modeling and diagnosing renal diseases, and drug discovery.
Zhogwei Li, Toshikazu Araoka, Jun Wu, Hsin-Kai Liao, Mo Li, Marta Lazo, Bing Zhou, Yinghui ui, Min-Zu Wu, Isao Tamura, Yu Xia, Ergin Beyret, Taiji Matsusaka, Ira Pastan, Concepcion Rodriguez Esteban, Isabel Guillén, Pedro Guillén, Josep M. Campistol, and Juan Carlos Izpisúa Belmonte. “3D Culture Supports Long-Term Expansion of Mouse and Human Nephrogenic Progenitors. Cell Stem Cell (2016), volume 19, Issue 4, p516, 6 October 2016