Project description:We report the transcriptomic profiling of tendon and fibrocartilage induction by day, examining both the fate dependent and independent modules
Project description:We report a high-efficiency differentiation protocol to tendon and fibrocartilage perform molecular profiling of tendon and fibrocartilage fatse in relation to developmetnal in vivo analogues. We also the molecular induction of tendon and fibrocartilage by examining fate dependent and independent gene modules
Project description:The musculoskeletal system is integrated by tendons that are characterized by expression of a functionally important transcription factor Scleraxis (Scx). To date, there has been no solid culture system for tenogenic differentiation. Here we developed the tenocyte induction method using induced pluripotent stem cells established from ScxGFP transgenic mice by monitoring fluorescence that reflects a series of dynamic differentiation process. Among several developmentally relevant factors, TGF-2 was the most potent inducer for differentiation of tenocytes expressing Tenomodulin, a mature differentiation marker. Single-cell RNA sequencing (scRNA-seq) revealed 11 distinct clusters including mature tenocyte population and tenogenic differentiation trajectory, which well recapitulates in vivo developmental process. Dataset of scRNA-seq and transcriptome of Scx deficient tendon enabled identification of Scx-related genes in which tendon-related genes are enriched. Collectively, this study leads to a new opportunity for tendon research and provides further insight into mechanistic understanding of the differentiation pathway to a tenogenic fate.
Project description:We used single-cell RNA sequencing and a gene knockout mice model to reveal the heterogeneity and differentiation trajectory of tendon derived cells in both physiological and pathoplogical conditons.
Project description:Spatial transcriptomic analysis of murine FDL tendons following acute injury and repair to evaluate spatiotemporal programming of tendon healing
Project description:Regenerative medicine approaches utilizing stem cells offer a promising strategy to address tendinopathy, a class of common tendon disorders associated with pain and impaired function. Tendon progenitor cells (TPCs) are important in healing and maintaining tendon tissues. Here we provide a comprehensive single cell transcriptomic profiling of TPCs from three normal and three clinically classified tendinopathy samples in response to mechanical stimuli. Analysis reveals seven distinct TPC subpopulations including subsets that are responsive to the mechanical stress, highly clonogenic, and specialized in cytokine or growth factor expression. The single cell transcriptomic profiling of TPCs and their subsets serves as a foundation for further investigation into the pathology and molecular hallmarks of tendinopathy in mechanical stimulation conditions.