Abstract
The Mesp1 lineage contributes to cardiac, hematopoietic and skeletal myogenic development. Interestingly, muscle stem cells residing in craniofacial skeletal muscles primarily arise from Mesp1+ progenitors, but those in trunk and limb skeletal muscles do not. To gain insights into the difference between the head and trunk/limb muscle developmental processes, we studied Mesp1+ skeletal myogenic derivatives via single-cell RNA-seq and other strategies. Using a doxycycline-inducible Mesp1-expressing mouse embryonic stem cell line, we found that the development of Mesp1-induced skeletal myogenic progenitors can be characterized by dynamic expression of PDGFRα and VCAM1. Single-cell RNA-seq analysis further revealed the heterogeneous nature of these Mesp1+ derivatives, spanning pluripotent and mesodermal to mesenchymal and skeletal myogenic. We subsequently reconstructed the single-cell trajectories of these subpopulations. Our data thereby provide a cell fate projection of Mesp1-induced skeletal myogenesis.
Original language | English (US) |
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Pages (from-to) | 284-290 |
Number of pages | 7 |
Journal | Biochemical and Biophysical Research Communications |
Volume | 520 |
Issue number | 2 |
DOIs | |
State | Published - Dec 3 2019 |
Bibliographical note
Funding Information:We would like to thank Jinjoo Kang, Olivia Recht and Cara-Lin Lonetree for their help with genotyping and animal husbandry, and Dr. Micah Gearhart for his advice on scRNA-seq analysis. The monoclonal antibody to MHC and Myogenin were obtained from the Developmental Studies Hybridoma Bank developed under the auspices of the NICHD and maintained by the University of Iowa. This work is supported by Regenerative Medicine Minnesota Discovery Science Grant, Minnesota, United States (grant number RMM 102516 001, to S.S.K.C.) and by University of Minnesota start-up fund, Minnesota, United States (to S.S.K.C.).
Funding Information:
We would like to thank Jinjoo Kang, Olivia Recht and Cara-Lin Lonetree for their help with genotyping and animal husbandry, and Dr. Micah Gearhart for his advice on scRNA-seq analysis. The monoclonal antibody to MHC and Myogenin were obtained from the Developmental Studies Hybridoma Bank developed under the auspices of the NICHD and maintained by the University of Iowa. This work is supported by Regenerative Medicine Minnesota Discovery Science Grant, Minnesota, United States (grant number RMM 102516 001, to S.S.K.C. ) and by University of Minnesota start-up fund, Minnesota, United States (to S.S.K.C.).
Publisher Copyright:
© 2019 Elsevier Inc.
Keywords
- Mesoderm patterning
- Mesp1
- Myogenic differentiation
- Single-cell RNA-Sequencing
- Skeletal muscle