Differential Gene Expression Involved in Bone Turnover of Mice Expressing Constitutively Active TGFβ Receptor Type I

Transforming growth factor beta (TGF-β) is ubiquitously found in bone and plays a key role in bone turnover. Mice expressing constitutively active TGF-β receptor type I ( mice) are osteopenic. Here, we identified the candidate genes involved in bone turnover in mice using RNA sequencing analysis. A total of 285 genes, including 87 upregulated and 198 downregulated genes, were differentially expressed. According to the KEGG analysis, some genes were involved in osteoclast differentiation (, ), B cell receptor signaling (, ), and neutrophil extracellular trap formation (, ). is related to osteoclast inhibition protein, whereas is a corepressor that regulates osteoblast differentiation. Silencing increased the number of osteoclasts and osteoclast marker genes. The knocking down of increased alkaline phosphatase activity, mineralization, and osteoblast marker genes. Therefore, our present study may provide an innovative idea for potential therapeutic targets and pathways in -associated bone loss.