Magnoliae Cortex and maize modulate Porphyromonas gingivalis-induced inflammatory reactions
10.5051/jpis.2018.48.2.70
- Author:
Jae Yoon KIM
1
;
Kyoung Hwa KIM
;
Eun Hye KWAG
;
Yang Jo SEOL
;
Yong Moo LEE
;
Young KU
;
In Chul RHYU
Author Information
1. Department of Periodontology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea. icrhyu@snu.ac.kr
- Publication Type:Original Article
- Keywords:
Cytokines;
Magnolia;
Mitogen-activated protein kinase 3;
Periodontal diseases;
Porphyromonas gingivalis;
Zea mays
- MeSH:
Blotting, Western;
Cytokines;
Enzyme-Linked Immunosorbent Assay;
Inflammation;
Interleukins;
Magnolia;
Mitogen-Activated Protein Kinase 3;
Nitric Oxide Synthase Type II;
Periodontal Diseases;
Porphyromonas gingivalis;
Porphyromonas;
Protein Kinases;
RAW 264.7 Cells;
Transcription Factors;
Zea mays
- From:Journal of Periodontal & Implant Science
2018;48(2):70-83
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: The aim of this study was to evaluate the capacity of single and combined applications of the bark of the stems and roots of Magnolia officinalis Rehd. et Wils. (Magnoliae Cortex) and Zea mays L. (maize) to modulate inflammation in RAW 264.7 cells stimulated with Porphyromonas gingivalis. METHODS: RAW 264.7 cells were stimulated with P. gingivalis, and Magnoliae Cortex and/or maize was added. Cytotoxicity and the capacity to modulate inflammation were determined with a methylthiazol tetrazolium (MTT) assay, nitrite production, enzyme-linked immunosorbent assay (ELISA), and western blotting. RESULTS: Treatment with Magnoliae Cortex and/or maize inhibited nuclear transcription factor κB (NF-κB) pathway activation and nuclear p44/42 mitogen-activated protein kinase (MAPK) and inducible nitric oxide synthase (iNOS) protein expression in P. gingivalis-stimulated RAW 264.7 cells. Moreover, the treatments suppressed cytokines (prostaglandin E2 [PGE2], interleukin [IL]-1β, and IL-6) and nitrite production. CONCLUSIONS: Both Magnoliae Cortex and maize exerted an anti-inflammatory effect on P. gingivalis-stimulated RAW 264.7 cells, and this effect was more pronounced when the extracts were combined. These findings show that these extracts may be beneficial for slowing the progression of periodontal disease.
