Filifactor alocis and Tumor Necrosis Factor-Alpha Stimulate Synthesis of Visfatin by Human Macrophages.

Abstract

There is little known about the effect of the periodontopathogen Filifactor alocis on macrophages as key cells of the innate immune defense in the periodontium. Therefore, the aim of the present study was to investigate the effect of F. alocis and additionally of the pro-inflammatory cytokine tumor necrosis factor-alpha (TNFα) on visfatin and other pro-inflammatory and proteolytic molecules associated with periodontitis in human macrophages. The presence of macrophage markers CD14, CD86, CD68, and CD163 was examined in gingival biopsies from healthy individuals and periodontitis patients. Human macrophages were incubated with F. alocis and TNFα for up to 2 d. The effects of both stimulants on macrophages were determined by real-time PCR, ELISA, immunocytochemistry, and immunofluorescence. F. alocis was able to significantly stimulate the synthesis of visfatin by human macrophages using TLR2 and MAPK pathways. In addition to visfatin, F. alocis was also able to increase the synthesis of cyclooxygenase 2, TNFα, and matrix metalloproteinase 1. Like F. alocis, TNFα was also able to stimulate the production of these proinflammatory and proteolytic molecules. Our results highlight the pathogenetic role of F. alocis in periodontal diseases and also underline the involvement of visfatin in the aetiopathogenesis of periodontitis.

• Authors: Andressa Vilas Boas Nogueira, Marjan Nokhbehsaim, Anna Damanaki, Sigrun Eick, Christian Kirschneck, Agnes Schröder, Jonathan Jantsch, James Deschner
• Journal: International journal of molecular sciences (Int J Mol Sci) Vol. 22 Issue 3 (Jan 27 2021) ISSN: 1422-0067 [Electronic] Switzerland
• PMID: 33513808 (Publication Type: Journal Article)

Chemical References

• Antigens, CD
• Antigens, Differentiation, Myelomonocytic
• B7-2 Antigen
• CD163 antigen
• CD68 antigen, human
• Lipopolysaccharide Receptors
• Receptors, Cell Surface
• TLR2 protein, human
• Toll-Like Receptor 2
• Tumor Necrosis Factor-alpha
• Cyclooxygenase 2
• Nicotinamide Phosphoribosyltransferase
• MMP1 protein, human
• Matrix Metalloproteinase 1

Topics

• Antigens, CD (genetics, metabolism)
• Antigens, Differentiation, Myelomonocytic (genetics, metabolism)
• B7-2 Antigen (genetics, metabolism)
• Clostridiales (immunology)
• Cyclooxygenase 2 (biosynthesis, genetics, metabolism)
• Gingiva (cytology, metabolism, pathology)
• Humans
• Immunohistochemistry
• Lipopolysaccharide Receptors (genetics, metabolism)
• MAP Kinase Signaling System (immunology)
• Macrophages (drug effects, metabolism)
• Matrix Metalloproteinase 1 (biosynthesis, genetics, metabolism)
• Nicotinamide Phosphoribosyltransferase (biosynthesis, genetics, metabolism)
• Periodontitis (immunology, metabolism, microbiology)
• Receptors, Cell Surface (genetics, metabolism)
• Toll-Like Receptor 2 (metabolism)
• Tumor Necrosis Factor-alpha (biosynthesis, genetics, metabolism, pharmacology)