Soluble Sema4D From γδ T Cells Exerts Osteoblast Inhibition via Plexin-B/mTOR Signalling Contributing to Pathogenesis of Bisphosphonate-Related Osteonecrosis of the Jaws.

Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a severe complication in patients undergoing long-term bisphosphonate therapy, while our knowledge on the pathogenesis of BRONJ is far from sufficient. Gamma delta (γδ) T cells predominantly distribute in mucosal tissues and play an important role in both immune modulation and bone metabolism; however, the mechanism of γδ T cells in the pathogenesis of BRONJ has not been elucidated. Here, we induced BRONJ-like lesions in wild-type (WT) and T-cell receptor delta-deficient (TCRδ) mice via intraperitoneal zoledronate injection.

Transcriptome Analysis of Monocytes and Fibroblasts Provides Insights Into the Molecular Features of Periodontal Ehlers-Danlos Syndrome.

Periodontal Ehlers-Danlos syndrome (pEDS) is a rare hereditary disorder characterized by severe early-onset periodontitis with premature tooth loss, pretibial hyperpigmentation, and skin fragility. It is caused by mutant variants in the and genes that result in C4 cleavage and local complement cascade activation, as well as other possible consequences. However, the exact functional consequences of this activation remain unclear.