[Temporal and spatial expression of Swell1 gene in the development of mouse condyle cartilage].

Purpose: To explore the temporal and spatial expression pattern of Swell1 (LRRC8A) gene in mouse condylar cartilage.

Methods: By obtaining condyle samples of embryos at 15.5, 16.5, 18.5 days and newborn mice, H-E staining, immunofluorescence staining and qRT-PCR were used to explore the microstructure of mouse condyles and the temporal and spatial expression changes of genes related to cartilage development and Swell1 gene. Statistical analysis was performed using SPSS 25.0 software package.

Results: Swell1 gene expression began in the hypertrophic chondrocyte layer during the development of the condyle from embryonic day 16.5, and then gradually increased, and continued to be expressed during mouse embryonic development until the mouse was born.

Conclusions: Swell1 is mainly expressed in hypertrophic chondrocytes during the development of mouse condyles, and it may be involved in the regulation of chondrocyte hypertrophy.