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Falcão MML, Passos-Soares JS, Machado PRL, Gomes-Filho IS, de Carvalho LP, de Campos EJ, Calheira MC, de Miranda PM, Santos RPB, Rocha Filho JTR, de Farias APF, Peixoto T, Nascimento RM, Seymour GJ, Trindade SC. The leprosy reaction is associated with salivary anti-Porphyromonas gingivalis IgA antibodies. AMB Express 2023; 13:70. [PMID: 37418096 DOI: 10.1186/s13568-023-01576-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 06/25/2023] [Indexed: 07/08/2023] Open
Abstract
The aim of the study was to evaluate the association between salivary anti-Porphyromonas gingivalis IgA antibodies and the leprosy reaction. The levels of salivary anti - P. gingivalis IgA antibodies, together with salivary flow and pH were measured in individuals diagnosed with leprosy and associated with the development of the leprosy reaction. Saliva was collected from 202 individuals diagnosed with leprosy at a reference leprosy treatment center, 106 cases with the leprosy reaction and 96 controls without the leprosy reaction. Anti - P. gingivalis IgA was evaluated by indirect immunoenzyme assay. Non-conditional logistic regression analysis was employed to estimate the association between antibody levels and the leprosy reaction. There was a positive statistically significant association between the levels of anti - P. gingivalis IgA and the presence of the leprosy reaction, controlling for confounders: age, sex, level of education and alcoholic beverage consumption: ORajusted: 2.55; IC 95%: 1.34-4.87. Individuals with leprosy who had high levels of salivary anti - P. gingivalis IgA had approximately twice as many chances of developing the leprosy reaction. The findings suggest a possible relationship between salivary anti - P. gingivalis IgA antibodies and the leprosy reaction.
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Affiliation(s)
- Michelle Miranda Lopes Falcão
- Department of Health, State University of Feira de Santana, Feira de Santana, Brazil.
- Postgraduate Program in Immunology, Federal University of Bahia, Salvador, Brazil.
| | - Johelle Santana Passos-Soares
- Department of Health, State University of Feira de Santana, Feira de Santana, Brazil
- Preventive Dentistry Department, Federal University of Bahia, Salvador, Brazil
| | - Paulo Roberto Lima Machado
- Immunology Service, University Hospital Prof. Edgar Santos Federal University of Bahia, Salvador, Brazil
| | | | | | | | | | | | | | | | - Antonio Pedro Froes de Farias
- Postgraduate Program in Immunology, Federal University of Bahia, Salvador, Brazil
- Immunology and Molecular Biology Laboratory, Federal University of Bahia, Salvador, Brazil
| | - Taiana Peixoto
- School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | | | | | - Soraya Castro Trindade
- Department of Health, State University of Feira de Santana, Feira de Santana, Brazil
- Postgraduate Program in Immunology, Federal University of Bahia, Salvador, Brazil
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Lin Y, Wang Y, Lin J, Xie Y. Research on Autophagy of Gingiva Epithelial Cell Induced by Porphyromonas Gingivalis Regulated by Long Non-Coding RNA Transforming Growth Factor Beta-2 Overlapping Transcript 1 (LncRNA TGFB2-OT1). J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Our study analyzes lncRNA TGFB2-OT1’s effect on autophagy and migration of gingiva epithelial cells and porphyromonas gingivalis. The expression of TGFB2-OT1 and TIMP2 in GEC cells was detected by QRT-PCR. Cell proliferation and colon formation was assessed by MTT method and colony
forming assay. The relation between TGFB2-OT1 and TIMP2 was confirmed luciferase assay. The autophagy, apoptosis rate and period distribution was detected by flow cytometry along with analysis of porphyromonas gingivalis of GEC cells. TGFB2-OT1 was upregulated significantly as shown by IncRNA
array. TGFB2-OT1 overexpression in GEC cells improved cell proliferation and migration, enhanced the sensibility of gingiva epithelial cell on the porphyromonas gingivalis and increased autophagy. The GEC cells were blocked at G2/M period. The TIMP2 was a direct target of TGFB2-OT1. In conclusion,
TIMP2 participates in the up-regulation of MMP10 induced by TGFB2-OT1. The lncRNA TGFB2-OT1 maybe be a potential biomarker to assess the autophagy of gingiva epithelial cell.
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Affiliation(s)
- Yujiao Lin
- Department of Stomatology, Shantou Central Hospital (Affiliated Shantou Hospital of Sun Yat-Sen University), Shantou, Guangdong, 515031, China
| | - Youshan Wang
- Department of Stomatology, Shantou Central Hospital (Affiliated Shantou Hospital of Sun Yat-Sen University), Shantou, Guangdong, 515031, China
| | - Jiaxu Lin
- Department of Stomatology, Shantou Central Hospital (Affiliated Shantou Hospital of Sun Yat-Sen University), Shantou, Guangdong, 515031, China
| | - Yiwen Xie
- Department of Stomatology, Shantou Central Hospital (Affiliated Shantou Hospital of Sun Yat-Sen University), Shantou, Guangdong, 515031, China
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