Project description:To investigate the effects of Dnmt1 Knockout in Sst expressing interneurons on celltype distribution in the embryonic brain, Sst-Cre/tdTomato/Dnmt1 loxp2 knockout mice and Sst-Cre/tdTomato control mice were analysed. 10 µm coronal sections of E16.5 brains were prepared for the Merscope platform using the commercially available Pan Neuro panel (Vizgen), covering 500 distinct transcripts.
Project description:In order to assess the descendants of hypertrophic chondrocytes, we utilized Collagen10-Cre;Rosa26-tdTomato mouse total bone isolated at e16.5 by Collagenase II digestion after mechanical digestion and soft tissue removal. After sequencing and downstream analysis using Seurat, we observed clusters of cells with gene profiles matching classically defined chondrocytes, skeletal stem and progenitor cells (SSPCs), and osteoblasts. Trajectory analysis reveals that the SSPCs lie intermediate to the transition of chondrocyte to osteoblast. We conclude that hypertrophic chondrocytes dedifferentiate to this progenitor stage before further differentiation.