Related Experiment Video
Updated: Aug 15, 2026

Robust Ligature-Induced Model of Murine Periodontitis for the Evaluation of Oral Neutrophils
Published on: January 21, 2020
Imbalance between soluble tumour necrosis factor receptors type 1 and 2 in chronic periodontitis
Ikuyo Ikezawa1, Hideaki Tai, Yasuko Shimada
1Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
Background:
Soluble types of tumour necrosis factor (TNF) receptors type 1 and 2 modulate the TNF-alpha-mediated inflammatory responses in chronic periodontitis (CP).
Objectives:
This study investigated the levels of TNF-alpha, soluble TNF receptor type 1 and 2 in gingival crevicular fluid (GCF) and serum of healthy subjects and CP patients.
Materials And Methods:
Thirty-eight sera and 73 GCF samples were collected from 16 healthy subjects and 22 CP patients. GCF was collected from probing pocket depth (PPD)< or =3 mm sites of healthy subjects, PPD< or =3, 4-6 and > or =7 mm sites of CP patients. The levels of TNF-alpha, soluble TNF receptor type 1 and 2 in the serum and GCF were quantified by enzyme-linked immunosorbant assay.
Results:
The total amounts of TNF-alpha, soluble TNF receptor type 1 and 2 in GCF significantly elevated with increasing PPD in both site-based (p<0.05) and subject-based (p<0.05) analyses. However, their levels progressively diverged as the pocket depths increased, with the soluble TNF receptor type 2 level being comparatively lower than type 1. On the other hand, soluble TNF receptor type 2/type 1 ratios in GCF decreased as the severity of periodontitis increased (p<0.0001).
Conclusion:
The imbalance between soluble TNF receptor type 1 and 2 levels in GCF could be related to CP severity.
Insights
Tumour necrosis factor (TNF) receptors in gingival crevicular fluid (GCF) increase with chronic periodontitis (CP) severity. An imbalance between soluble TNF receptor type 1 and 2 in GCF may indicate CP progression.
Area of Science:
- Periodontology
- Immunology
- Biochemistry
Background:
- Soluble tumour necrosis factor (TNF) receptors type 1 and 2 modulate TNF-alpha-mediated inflammation in chronic periodontitis (CP).
- Understanding these receptor levels in CP is crucial for inflammatory response insights.
Purpose of the Study:
- To investigate and compare levels of TNF-alpha, soluble TNF receptor type 1, and soluble TNF receptor type 2.
- To analyze these levels in gingival crevicular fluid (GCF) and serum of healthy individuals and CP patients.
Main Methods:
- Collected 38 serum and 73 GCF samples from 16 healthy subjects and 22 CP patients.
- Quantified TNF-alpha, soluble TNF receptor type 1, and soluble TNF receptor type 2 using enzyme-linked immunosorbent assay.
- Analyzed GCF from sites with varying probing pocket depths (PPD).
Main Results:
- TNF-alpha, soluble TNF receptor type 1, and soluble TNF receptor type 2 levels in GCF significantly increased with probing pocket depth (PPD).
- Soluble TNF receptor type 2 levels were lower than type 1 as pocket depths increased.
- The ratio of soluble TNF receptor type 2 to type 1 in GCF decreased significantly with increasing periodontitis severity.
Conclusions:
- The observed imbalance between soluble TNF receptor type 1 and 2 levels in GCF correlates with chronic periodontitis severity.
- This imbalance may serve as a potential biomarker for assessing CP progression.
More Related Videos
Related Concept Videos
The Oral Microbiota
Inflammatory Bowel Disease II: Ulcerative Colitis
Chronic Inflammation: Introduction
