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

Shunsuke Mori (), Eriko Sakakura, Yuji Tsunekawa, Masaya Hagiwara, Takayuki Suzuki and Mototsugu Eiraku ()
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Shunsuke Mori: Kyoto University
Eriko Sakakura: Kyoto University
Yuji Tsunekawa: Laboratory for Cell Asymmetry, RIKEN Center for Developmental Biology
Masaya Hagiwara: Osaka Prefecture University
Takayuki Suzuki: Nagoya University
Mototsugu Eiraku: Kyoto University

Nature Communications, 2019, vol. 10, issue 1, 1-13

Abstract: 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.

Date: 2019
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DOI: 10.1038/s41467-019-11702-y

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