Distinct Profiles of Specialized Pro-resolving Lipid Mediators and Corresponding Receptor Gene Expression in Periodontal Inflammation
| Autor: | Wanqi Chen, Lisha Zhu, Srinivas Ayilavarapu, Robin L Weltman, W. Jim Zheng, Krishna Rao Maddipati, Chun-Teh Lee, Nikola Angelov, Brittney Ferguson, Thomas E. Van Dyke, Nishantha R Bokka |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
lcsh:Immunologic diseases. Allergy Adult Male Immunology Gingiva Gene Expression Inflammation Receptors G-Protein-Coupled specialized pro-resolving lipid mediators 03 medical and health sciences Young Adult 0302 clinical medicine Gene expression medicine Immunology and Allergy Humans Metabolomics Receptor Periodontitis Gene Original Research mass spectrometry omega-3 fatty acids business.industry Fatty Acids Lipid signaling Middle Aged medicine.disease omega-6 fatty acids GPR32 030104 developmental biology inflammation metabololipidomics GPR18 Female medicine.symptom business lcsh:RC581-607 030215 immunology |
| Zdroj: | Frontiers in Immunology Frontiers in Immunology, Vol 11 (2020) |
| ISSN: | 1664-3224 |
| Popis: | Polyunsaturated fatty acid-derived specialized pro-resolving lipid mediators (SPMs) play an important role in modulating inflammation. The aim of the study was to compare profiles of SPMs, SPM related lipid mediators and SPM receptor gene expression in gingiva of subjects with periodontitis to healthy controls. A total of 28 subjects were included; 13 periodontally healthy and 15 periodontitis before or after non-surgical periodontal therapy. Gingival tissues were collected from two representative posterior teeth prior to and 8 weeks after scaling and root planning; only once in the healthy group. Lipid mediator-SPM metabololipidomics was performed to identify metabolites in gingiva. qRT-PCR was performed to assess relative gene expression (2-ΔΔCT) of known SPM receptors. Intergroup comparisons were made using Wilcoxon tests. Thirty-six omega-6 or omega-3 fatty acid-derived lipid mediators and seven receptor genes were identified in gingiva. Profiles of lipid mediators and receptor gene expression were significantly different between the three groups. Levels of six lipid mediators, 5-HETE, 15-HETE, 15(S)-HEPE, 4-HDHA, 7-HDHA, and 17-HDHA in periodontitis before treatment were significantly higher than in periodontitis after treatment. The expression of BLT1 in the healthy group was significantly higher than periodontitis subjects before and after treatment. The expression of GPR18 in periodontitis before treatment was significantly higher than in periodontitis after treatment while the expression of GPR32 in periodontitis before treatment was significantly lower than in periodontitis after treatment. Elevated levels of SPM biosynthetic pathway markers in periodontitis subjects before treatment indicated inflammation induced pro-resolution activity in gingiva, but receptors for these molecules were deficient in periodontitis pre-treatment suggesting that failure of resolution of inflammation contributes to excess, chronic inflammation in periodontitis. |
| Databáze: | OpenAIRE |
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