Increased Resolvin E1 Production by Peripheral Blood Mononuclear Cells in Periodontitis Patients: Pilot Study

Braz Dent J. 2024 Oct 25:35:e245861. doi: 10.1590/0103-6440202405861. eCollection 2024.

Abstract

This study quantified the production of the pro-resolving agent Resolvin E1 by peripheral blood mononuclear cells (PBMC) from 20 systemically healthy volunteers with and without periodontitis after stimulation with lipopolysaccharide (LPS) from Porphyromonas gingivalis (Pg). Ten periodontitis patients and 10 healthy volunteers (30-50 years old), matched by age and sex, were recruited. Peripheral blood mononuclear cells were isolated and stimulated in culture plates for 24 hours with Pg LPS. Resolvin E1 levels were measured in the supernatants by enzyme-linked immunosorbent assay. Significantly higher production of Resolvin E1 was observed in both groups when stimulated with LPS compared to baseline levels (p<0.001). A significant increase in Resolvin E1 was observed in the presence of Lipopolysaccharide in the patients with periodontitis compared to the healthy group (p=0.0019). Resolvin E1 levels may reflect a measure of resolution of inflammation that warrants further clinical investigation.

Este estudo quantificou a produção do agente pró-resolução Resolvin E1 por células mononucleares de sangue periférica (PBMC) de 20 voluntários sistemicamente saudáveis com e sem periodontite após a estimulação com lipopolissacárido (LPS) de Porphyromonas gingivalis (Pg). Se reclutaram dez pacientes com periodontite e 10 voluntários saudáveis (30-50 anos), emparejados por pai e sexo. Células mononucleares de sangue são isoladas e estimuladas em placas de cultivo durante 24 horas com Pg LPS. Os níveis de Resolvin E1 são mediados nos sobrenadantes por meio de um ensaio imunoabsorvente ligado a enzimas. Foi observada uma produção significativamente maior de Resolvin E1 em ambos os grupos quando houve estímulo com LPS em comparação com os níveis iniciais (p=0,001). Foi observado um aumento significativo de Resolvina E1 na presença de lipopolissacárido em pacientes com periodontite em comparação com o grupo saudável (p=0,0019). Os níveis de Resolvin E1 podem refletir uma medida de resolução da inflamação que justifica uma investigação clínica aprofundada

MeSH terms

  • Adult
  • Case-Control Studies
  • Eicosapentaenoic Acid* / analogs & derivatives
  • Enzyme-Linked Immunosorbent Assay
  • Female
  • Humans
  • Leukocytes, Mononuclear* / drug effects
  • Leukocytes, Mononuclear* / metabolism
  • Lipopolysaccharides
  • Male
  • Middle Aged
  • Periodontitis* / microbiology
  • Pilot Projects
  • Porphyromonas gingivalis

Substances

  • 5S,12R,18R-trihydroxy-6Z,8E,10E,14Z,16E-eicosapentaenoic acid
  • Eicosapentaenoic Acid
  • Lipopolysaccharides

Grants and funding

This study was financed by resources of the Center for Dental Research, Faculty of Dentistry, Pontificia Universidad Javeriana, and the Universidad Nacional de Colombia. JAS was funded by CNPq # 311368/2019-0