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Teixeira QE, Ferreira DDC, da Silva AMP, Gonçalves LS, Pires FR, Carrouel F, Bourgeois D, Sufiawati I, Armada L. Aging as a Risk Factor on the Immunoexpression of Pro-Inflammatory IL-1β, IL-6 and TNF-α Cytokines in Chronic Apical Periodontitis Lesions. BIOLOGY 2021; 11:biology11010014. [PMID: 35053012 PMCID: PMC8772771 DOI: 10.3390/biology11010014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 11/16/2022]
Abstract
Persistent inflammatory responses in the elderly may act as modifiers on the progression and repair of chronic apical periodontitis lesions (CAPLs). While the involvement of IL-1β, IL-6 and TNF-α in inflammatory responses and, particularly, in CAPL has been documented, their expression in elderly patients needs to be further characterized. Therefore, the purpose of this study was to evaluate and compare the expressions of pro-inflammatory cytokines in CAPL from elderly individuals with young/middle-aged individuals. Thirty CAPL (15 cysts and 15 granulomas) from elderly patients (>60 years) and 30 CAPL (15 cysts and 15 granuloma) from young/middle-aged individuals (20–56 years) were selected. Immunohistochemical reactions were performed against IL-1β, IL-6 and TNF-α. The slides were subdivided into five high-magnification fields and analyzed. The number of positive stains was evaluated for each antibody. There was no significant difference between the cytokines when the cysts and granuloma were compared in the two groups. In the young/middle-aged, only IL-1β showed a difference and was significantly higher in granulomas (p = 0.019). CAPL pro-inflammatory cytokine levels in the elderly were significantly higher than in young/middle-aged individuals (p < 0.05). The pro-inflammatory cytokines IL-1β, IL-6 and TNF-α were significantly higher in CAPL in the elderly compared with the young/middle-aged group. Further elaborate research studies/analyses to elucidate the reasons for and consequences of inflammation in the elderly are recommended.
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Affiliation(s)
- Quésia Euclides Teixeira
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro 22790-710, Brazil; (Q.E.T.); (D.d.C.F.); (A.M.P.d.S.); (L.S.G.); (F.R.P.)
| | - Dennis de Carvalho Ferreira
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro 22790-710, Brazil; (Q.E.T.); (D.d.C.F.); (A.M.P.d.S.); (L.S.G.); (F.R.P.)
| | - Alexandre Marques Paes da Silva
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro 22790-710, Brazil; (Q.E.T.); (D.d.C.F.); (A.M.P.d.S.); (L.S.G.); (F.R.P.)
| | - Lucio Souza Gonçalves
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro 22790-710, Brazil; (Q.E.T.); (D.d.C.F.); (A.M.P.d.S.); (L.S.G.); (F.R.P.)
| | - Fabio Ramoa Pires
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro 22790-710, Brazil; (Q.E.T.); (D.d.C.F.); (A.M.P.d.S.); (L.S.G.); (F.R.P.)
| | - Florence Carrouel
- Health, Systemic, Process (P2S), UR 4129 Research Unit, University Claude Bernard Lyon 1, University of Lyon, 69008 Lyon, France;
- Correspondence: (F.C.); (L.A.); Tel.: +55-21-2497-898 (L.A.)
| | - Denis Bourgeois
- Health, Systemic, Process (P2S), UR 4129 Research Unit, University Claude Bernard Lyon 1, University of Lyon, 69008 Lyon, France;
| | - Irna Sufiawati
- Department of Oral Medicine, Universitas Padjadjaran, Bandung 40132, Indonesia;
| | - Luciana Armada
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro 22790-710, Brazil; (Q.E.T.); (D.d.C.F.); (A.M.P.d.S.); (L.S.G.); (F.R.P.)
- Correspondence: (F.C.); (L.A.); Tel.: +55-21-2497-898 (L.A.)
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A Mouse Model for Studying the Development of Apical Periodontitis with Age. Cells 2021; 10:cells10030671. [PMID: 33802950 PMCID: PMC8002842 DOI: 10.3390/cells10030671] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/10/2021] [Accepted: 03/15/2021] [Indexed: 01/15/2023] Open
Abstract
Older age is associated with reduced immune function. Our aim was to study how age affects the development of apical periodontitis (AP). AP was induced in two age groups of mice (young vs. adult). Histological samples were stained by Hematoxylin Eosin, Brown and Brenn, and Tartrate-Resistant Acid Phosphatase. In addition, the samples were scanned by Micro-Computerized-Tomography (micro-CT) to evaluate apical constriction and periapical lesion size. Cell density in the periapical region was computationally assessed. Moreover, lesion immune cell populations were characterized by flow cytometry and immunofluorescence. The young group presented more canals with necrotic radicular pulp compared to the adults. There was no difference in bacteria location in the canals between the groups. Apical constriction size was larger in the young mice compared to the adults. The periapical cell density was higher in the young group, while the dominant immune cells in the lesions were neutrophils, which also exhibited the highest young/adult ratio. Immunofluorescence demonstrated neutrophils in the lesion. More osteoclasts were present in the lesions of the young mice, in correlation to the higher volume of bone resorption in this group. Overall, we conclude that the immune reaction to AP stimuli was attenuated in the adult mice compared to the young.
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Cyclophilin a increases CD68+ cell infiltration in rat experimental periodontitis. J Mol Histol 2018; 49:157-164. [DOI: 10.1007/s10735-018-9755-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/05/2018] [Indexed: 01/26/2023]
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