1. In Vivo Human Somitogenesis Guides Somite Development from hPSCs
- Author
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Xi, Haibin, Fujiwara, Wakana, Gonzalez, Karen, Jan, Majib, Liebscher, Simone, Van Handel, Ben, Schenke-Layland, Katja, and Pyle, April D
- Subjects
Biological Sciences ,Stem Cell Research - Embryonic - Human ,Stem Cell Research - Induced Pluripotent Stem Cell - Human ,Regenerative Medicine ,Stem Cell Research ,Stem Cell Research - Induced Pluripotent Stem Cell ,1.1 Normal biological development and functioning ,Musculoskeletal ,Body Patterning ,Cell Differentiation ,Cells ,Cultured ,Embryonic Development ,Gene Expression Regulation ,Developmental ,Humans ,Mesoderm ,Morphogenesis ,Muscle ,Skeletal ,Pluripotent Stem Cells ,Signal Transduction ,Somites ,Transforming Growth Factor beta ,beta Catenin ,chondrogenesis ,development ,differentiation ,human pluripotent stem cells ,osteogenesis ,skeletal myogenesis ,somite ,Biochemistry and Cell Biology ,Medical Physiology ,Biological sciences - Abstract
Somites form during embryonic development and give rise to unique cell and tissue types, such as skeletal muscles and bones and cartilage of the vertebrae. Using somitogenesis-stage human embryos, we performed transcriptomic profiling of human presomitic mesoderm as well as nascent and developed somites. In addition to conserved pathways such as WNT-β-catenin, we also identified BMP and transforming growth factor β (TGF-β) signaling as major regulators unique to human somitogenesis. This information enabled us to develop an efficient protocol to derive somite cells in vitro from human pluripotent stem cells (hPSCs). Importantly, the in-vitro-differentiating cells progressively expressed markers of the distinct developmental stages that are known to occur during in vivo somitogenesis. Furthermore, when subjected to lineage-specific differentiation conditions, the hPSC-derived somite cells were multipotent in generating somite derivatives, including skeletal myocytes, osteocytes, and chondrocytes. This work improves our understanding of human somitogenesis and may enhance our ability to treat diseases affecting somite derivatives.
- Published
- 2017