Effects of periodontitis on the development of asthma: The role of photodynamic therapy.
To evaluate whether periodontitis modulates lung inflammation in an experimental model of asthma as well as the photodynamic therapy (PDT) is associated with a reduction of lung inflammation. Seventy-two BALB/c male mice (~2 months) were randomly divided into 8 groups (n = 9): Basal, Periodontitis (...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2017-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5689838?pdf=render |
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| author | Larissa Carbonera Candeo Nicole Cristine Rigonato-Oliveira Aurileia Aparecida Brito Rodrigo Labat Marcos Cristiane Miranda França Kristianne Porta Santos Fernandes Raquel Agnelli Mesquita-Ferrari Sandra Kalil Bussadori Rodolfo Paula Vieira Adriana Lino-Dos-Santos-Franco Ana Paula Ligeiro-Oliveira Anna Carolina Ratto Tempestini Horliana |
| author_facet | Larissa Carbonera Candeo Nicole Cristine Rigonato-Oliveira Aurileia Aparecida Brito Rodrigo Labat Marcos Cristiane Miranda França Kristianne Porta Santos Fernandes Raquel Agnelli Mesquita-Ferrari Sandra Kalil Bussadori Rodolfo Paula Vieira Adriana Lino-Dos-Santos-Franco Ana Paula Ligeiro-Oliveira Anna Carolina Ratto Tempestini Horliana |
| author_sort | Larissa Carbonera Candeo |
| collection | DOAJ |
| description | To evaluate whether periodontitis modulates lung inflammation in an experimental model of asthma as well as the photodynamic therapy (PDT) is associated with a reduction of lung inflammation. Seventy-two BALB/c male mice (~2 months) were randomly divided into 8 groups (n = 9): Basal, Periodontitis (P), P+PT, P+PT+PDT, Asthma (A), A+P, A+P+PT, and A+P+PT+PDT. Periodontitis was induced by using the ligature technique and asthma was induced by ovalbumin (OVA). PT was performed with curettes and PDT with methylene blue (0.005%), λ = 660nm, with a radiant exposure of 318J/cm2. After 43 days, euthanasia was carried out prior to lung and mandible morphological analyzes. All of the manipulations of the animals were performed by only one operator. The total and differential cell counts and cytokines IL-4, IL-5, IL-10, IFN-γ, TNF-α, IL-1β, and IL-6 were evaluated in the bronchoalveolar lavage (BAL) and in the serum. Mucus and alkaline phosphatase were also quantified. Statistical analyzes were performed by a blinded statistician. One-way analysis of variance (ANOVA) was employed, followed by the Student-Newman-Keuls test. Periodontitis group (P) increased alkaline phosphatase and bone resorption (p<0.05), validating the experimental model of periodontitis. The A group and the P group increased the total amount of cells (p <0.05) in the BAL. However, in the A+P group, there was a decrease in these cells, except for in the A+P+PT+PDT group (p<0.05). The asthma group increased the Th2 cytokines and P group increased the Th1 cytokine profile, and A+P+PT+PDT group increased IL-10 cytokine. Mucus was increased for the A and P groups. In conclusion, periodontitis in the asthmatic mice reduced the inflammatory migrated cells in the BAL (eosinophils, lymphocytes, macrophages). In addition, it reduced the levels of the IL-4 and TNF-α cytokines, which was also accompanied by a decreased mucus production. After PDT treatment the total cell count increased however, this increase was not accompanied by a pro-inflammatory cytokines release. Only in PDT group the anti-inflammatory IL-10 was increased. Further studies are needed to understand this mechanism of action. |
| first_indexed | 2024-12-21T15:02:22Z |
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| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-21T15:02:22Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-572d717be92f4deea46e3251d9ab72822022-12-21T18:59:33ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-011211e018794510.1371/journal.pone.0187945Effects of periodontitis on the development of asthma: The role of photodynamic therapy.Larissa Carbonera CandeoNicole Cristine Rigonato-OliveiraAurileia Aparecida BritoRodrigo Labat MarcosCristiane Miranda FrançaKristianne Porta Santos FernandesRaquel Agnelli Mesquita-FerrariSandra Kalil BussadoriRodolfo Paula VieiraAdriana Lino-Dos-Santos-FrancoAna Paula Ligeiro-OliveiraAnna Carolina Ratto Tempestini HorlianaTo evaluate whether periodontitis modulates lung inflammation in an experimental model of asthma as well as the photodynamic therapy (PDT) is associated with a reduction of lung inflammation. Seventy-two BALB/c male mice (~2 months) were randomly divided into 8 groups (n = 9): Basal, Periodontitis (P), P+PT, P+PT+PDT, Asthma (A), A+P, A+P+PT, and A+P+PT+PDT. Periodontitis was induced by using the ligature technique and asthma was induced by ovalbumin (OVA). PT was performed with curettes and PDT with methylene blue (0.005%), λ = 660nm, with a radiant exposure of 318J/cm2. After 43 days, euthanasia was carried out prior to lung and mandible morphological analyzes. All of the manipulations of the animals were performed by only one operator. The total and differential cell counts and cytokines IL-4, IL-5, IL-10, IFN-γ, TNF-α, IL-1β, and IL-6 were evaluated in the bronchoalveolar lavage (BAL) and in the serum. Mucus and alkaline phosphatase were also quantified. Statistical analyzes were performed by a blinded statistician. One-way analysis of variance (ANOVA) was employed, followed by the Student-Newman-Keuls test. Periodontitis group (P) increased alkaline phosphatase and bone resorption (p<0.05), validating the experimental model of periodontitis. The A group and the P group increased the total amount of cells (p <0.05) in the BAL. However, in the A+P group, there was a decrease in these cells, except for in the A+P+PT+PDT group (p<0.05). The asthma group increased the Th2 cytokines and P group increased the Th1 cytokine profile, and A+P+PT+PDT group increased IL-10 cytokine. Mucus was increased for the A and P groups. In conclusion, periodontitis in the asthmatic mice reduced the inflammatory migrated cells in the BAL (eosinophils, lymphocytes, macrophages). In addition, it reduced the levels of the IL-4 and TNF-α cytokines, which was also accompanied by a decreased mucus production. After PDT treatment the total cell count increased however, this increase was not accompanied by a pro-inflammatory cytokines release. Only in PDT group the anti-inflammatory IL-10 was increased. Further studies are needed to understand this mechanism of action.http://europepmc.org/articles/PMC5689838?pdf=render |
| spellingShingle | Larissa Carbonera Candeo Nicole Cristine Rigonato-Oliveira Aurileia Aparecida Brito Rodrigo Labat Marcos Cristiane Miranda França Kristianne Porta Santos Fernandes Raquel Agnelli Mesquita-Ferrari Sandra Kalil Bussadori Rodolfo Paula Vieira Adriana Lino-Dos-Santos-Franco Ana Paula Ligeiro-Oliveira Anna Carolina Ratto Tempestini Horliana Effects of periodontitis on the development of asthma: The role of photodynamic therapy. PLoS ONE |
| title | Effects of periodontitis on the development of asthma: The role of photodynamic therapy. |
| title_full | Effects of periodontitis on the development of asthma: The role of photodynamic therapy. |
| title_fullStr | Effects of periodontitis on the development of asthma: The role of photodynamic therapy. |
| title_full_unstemmed | Effects of periodontitis on the development of asthma: The role of photodynamic therapy. |
| title_short | Effects of periodontitis on the development of asthma: The role of photodynamic therapy. |
| title_sort | effects of periodontitis on the development of asthma the role of photodynamic therapy |
| url | http://europepmc.org/articles/PMC5689838?pdf=render |
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