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Self-organized formation of developing appendages from murine pluripotent stem cells.


ABSTRACT: Limb development starts with the formation of limb buds (LBs), which consist of tissues from two different germ layers; the lateral plate mesoderm-derived mesenchyme and ectoderm-derived surface epithelium. Here, we report means for induction of an LB-like mesenchymal/epithelial complex tissues from murine pluripotent stem cells (PSCs) in vitro. The LB-like tissues selectively differentiate into forelimb- or hindlimb-type mesenchymes, depending on a concentration of retinoic acid. Comparative transcriptome analysis reveals that the LB-like tissues show similar gene expression pattern to that seen in LBs. We also show that manipulating BMP signaling enables us to induce a thickened epithelial structure similar to the apical ectodermal ridge. Finally, we demonstrate that the induced tissues can contribute to endogenous digit tissue after transplantation. This PSC technology offers a first step for creating an artificial limb bud in culture and might open the door to inducing other mesenchymal/epithelial complex tissues from PSCs.

SUBMITTER: Mori S 

PROVIDER: S-EPMC6707191 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Self-organized formation of developing appendages from murine pluripotent stem cells.

Mori Shunsuke S   Sakakura Eriko E   Tsunekawa Yuji Y   Hagiwara Masaya M   Suzuki Takayuki T   Eiraku Mototsugu M  

Nature communications 20190823 1


Limb development starts with the formation of limb buds (LBs), which consist of tissues from two different germ layers; the lateral plate mesoderm-derived mesenchyme and ectoderm-derived surface epithelium. Here, we report means for induction of an LB-like mesenchymal/epithelial complex tissues from murine pluripotent stem cells (PSCs) in vitro. The LB-like tissues selectively differentiate into forelimb- or hindlimb-type mesenchymes, depending on a concentration of retinoic acid. Comparative tr  ...[more]

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