Effects of butyrate and propionate on the adhesion, growth, cell cycle kinetics, and protein synthesis of cultured human gingival fibroblasts
Journal
Journal of Periodontology
Journal Volume
70
Journal Issue
12
Pages
1435-1442
Date Issued
1999
Author(s)
Abstract
Background: Various periodontal and root canal pathogens, such as the Bacteroides species, can produce significant amounts of short chain fatty acids (SCFA). The roles of SCFA in the pathogenesis of periodontal disease are still not fully understood. Methods: We therefore investigated 2 main SCFA, butyrate and propionate, on the functional behavior of cultured human gingival fibroblasts (GF) such as cell growth, protein synthesis, cell adhesion capacity, and cell cycle progression. Results: Butyrate and propionate inhibited the growth of healthy (HGF) and inflamed gingival fibroblasts (IGF) in a dose dependent manner. At concentrations of 4, 8, and 16 mM, butyrate suppressed the cell growth by 11 to 58%, 16 to 60%, and 50 to 71%, respectively. The response of cultured gingival fibroblasts to SCFA showed individual differences. Morphologically, GF became larger and more flattened in appearance following exposure to butyrate (>8 mM) and propionate (>24 mM) for 5 days. Inhibitory effects of butyrate (>2 mM) and propionate (>8 mM) on the growth of GF were due possibly to their inhibition of cell-cycle progression. At concentrations of 2 and 8 mM, butyrate led to G0/G1 arrest. Elevation of the exposure concentration to 8 to 24 mM further result in G2/M phase arrest of GF. On the other hand, propionate, at concentrations ranging from 4 to 24 mM, led to G0/G1 arrest. Butyrate (>2 mM) inhibited the proline-rich protein synthesis of GF. At concentrations of 4, 8, 16, and 24 mM, butyrate inhibited the protein synthesis of HGF-1 by 42%, 43%, 51%, and 54%, respectively. In all strains of cultured GF, the suppressive effect of propionate is less than that of butyrate. At concentration range of 4 to 24 mM, propionate suppressed the protein synthesis of HGF-1 by 23 to 43%. However, both butyrate and propionate (4 to 48 mM) exerted little effects on the adhesion of GF to type 1 collagen within 3 hours of incubation. Conclusions: These results suggested that SCFA released by pathogenic microorganisms can contribute to the gingival tissue dysfunction and breakdown through their actions on specific biological functions of GF. J Periodontol 1999;70:1435-1442.
Other Subjects
butyric acid derivative; collagen; peptide; proline; proline rich protein; proline-rich polypeptide; propionic acid derivative; protein; volatile fatty acid; article; cell adhesion; cell culture; cell cycle; cell cycle G0 phase; cell cycle G1 phase; cell cycle G2 phase; cell division; cell size; cytology; dose response; drug effect; fibroblast; gingiva; gingivitis; human; metabolism; mitosis; pathology; pathophysiology; protein synthesis; time; Butyrates; Cell Adhesion; Cell Cycle; Cell Division; Cell Size; Cells, Cultured; Collagen; Dose-Response Relationship, Drug; Fatty Acids, Volatile; Fibroblasts; G0 Phase; G1 Phase; G2 Phase; Gingiva; Gingivitis; Humans; Mitosis; Peptides; Proline; Propionates; Protein Biosynthesis; Proteins; Time Factors
Publisher
American Academy of Periodontology
Type
journal article