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Jung, Kwang Bo; Lee, Hana; Son, Ye Seul; Lee, Mi-Ok; Kim, Young-Dae; Oh, Soo Jin; Kwon, Ohman; Cho, Sunwha; Cho, Hyun-Soo; Kim, Dae-Soo; Oh, Jung-Hwa; Zilbauer, Matthias; Min, Jeong-Ki; Jung, Cho-Rok; Kim, Janghwan; Son, Mi-Young
Nature communications, 08/2018, Volume: 9, Issue: 1Journal Article
Human pluripotent stem cell (hPSC)-derived intestinal organoids (hIOs) form 3D structures organized into crypt and villus domains, making them an excellent in vitro model system for studying human intestinal development and disease. However, hPSC-derived hIOs still require in vivo maturation to fully recapitulate adult intestine, with the mechanism of maturation remaining elusive. Here, we show that the co-culture with human T lymphocytes induce the in vitro maturation of hIOs, and identify STAT3-activating interleukin-2 (IL-2) as the major factor inducing maturation. hIOs exposed to IL-2 closely mimic the adult intestinal epithelium and have comparable expression levels of mature intestinal markers, as well as increased intestine-specific functional activities. Even after in vivo engraftment, in vitro-matured hIOs retain their maturation status. The results of our study demonstrate that STAT3 signaling can induce the maturation of hIOs in vitro, thereby circumventing the need for animal models and in vivo maturation.
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