Sitagliptin attenuates Porphyromonas gingivalis virulence and inflammatory response in macrophage on titanium. (May 2023)

• Record Type: Journal Article
• Authors: Tang, Weilong; Du, Minquan; Zhang, Shuang; Jiang, Han
• Is Part Of: Archives of oral biology. Volume 149(2023)
• Publication Date: 2023-05
• Subjects: Sitagliptin -- Porphyromonas gingivalis -- Macrophage -- Titanium -- Peri-implantitis; Mouth -- Periodicals; Mouth -- Diseases -- Periodicals; Dentistry -- Periodicals; Electronic journals; 617.6005
• DOI: 10.1016/j.archoralbio.2023.105659
• Languages: English
• ISSNs: 0003-9969

Abstract

Abstract: Background: In peri-implantitis, Porphyromonas gingivalis and macrophage play important roles. The aim of this study was to detect the attenuating effect of an anti-diabetic drug sitagliptin on Porphyromonas gingivalis virulence and inflammatory response in macrophage on titanium discs. Materials and methods: Porphyromonas gingivalis and macrophage were cultured on titanium discs. Antibacterial and antibiofilm activities of sitagliptin were assessed and the morphology of Porphyromonas gingivalis was observed by SEM. Bacterial early adhesion, aggregation, hemolysis and Porphyromonas gingivalis virulence factors mRNA expression were assessed to preliminarily investigate the mechanisms of action. Flow cytometry assay, qRT-PCR assay and ELISA were used to assess the anti-inflammatory effect of sitagliptin on Porphyromonas gingivalis lipopolysaccharide-stimulated macrophage. Results: The present study demonstrated the inhibiting effect of sitagliptin on the growth, biofilm and virulence factors of Porphyromonas gingivalis and the protective effect on the Porphyromonas gingivalis lipopolysaccharide-induced polarization in macrophage. And we also confirmed the anti-inflammatory effect of sitagliptin on the secretion of inflammation-related factors in macrophage. Conclusions: Sitagliptin possesses the attenuating effect on Porphyromonas gingivalis virulence and inflammatory response in Porphyromonas gingivalis lipopolysaccharide-stimulated macrophage on titanium. Highlights: Sitagliptin inhibited the growth, phenotypic behavior and virulence factors of P. gingivalis on titanium. Sitagliptin showed anti-inflammatory effect in macrophage stimulated by P. gingivalis LPS. The anti-diabetic drug has a potential therapeutic role in peri-implantitis, particularly in patients with type 2 diabetes.