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Caputo LDS, Alves CDL, Laranjeira IM, Fonseca-Rodrigues D, da Silva Filho AA, Dias ACP, Pinto-Ribeiro F, Pereira Junior ODS, de Paula ACC, Nagato AC, Corrêa JODA. Copaiba oil minimizes inflammation and promotes parenchyma re-epithelization in acute allergic asthma model induced by ovalbumin in BALB/c mice. Front Pharmacol 2024; 15:1356598. [PMID: 38666018 PMCID: PMC11043548 DOI: 10.3389/fphar.2024.1356598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
Introduction: Asthma is a condition of airflow limitation, common throughout the world, with high mortality rates, especially as it still faces some obstacles in its management. As it constitutes a public health challenge, this study aimed to investigate the effect of copaiba oil (e.g., Copaifera langsdorffii), as a treatment resource, at doses of 50 and 100 mg/kg on certain mediators of acute lung inflammation (IL-33, GATA3, FOXP3, STAT3, and TBET) and early mechanisms of lung remodeling (degradation of elastic fiber tissues, collagen deposition, and goblet cell hyperplasia). Methods: Using an ovalbumin-induced acute allergic asthma model in BALB/c mice, we analyzed the inflammatory mediators through immunohistochemistry and the mechanisms of lung remodeling through histopathology, employing orcein, Masson's trichrome, and periodic acid-Schiff staining. Results: Copaiba oil treatment (CO) reduced IL-33 and increased FOXP3 by stimulating the FOXP3/GATA3 and FOXP3/STAT3 pathways. Additionally, it upregulated TBET, suggesting an additional role in controlling GATA3 activity. In the respiratory epithelium, CO decreased the fragmentation of elastic fibers while increasing the deposition of collagen fibers, favoring epithelial restructuring. Simultaneously, CO reduced goblet cell hyperplasia. Discussion: Although additional research is warranted, the demonstrated anti-inflammatory and re-epithelializing action makes CO a viable option in exploring new treatments for acute allergic asthma.
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Affiliation(s)
- Ludmila de Souza Caputo
- Department of Pharmaceutical Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Carolina de Lima Alves
- Department of Pharmaceutical Sciences, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Inês Martins Laranjeira
- Life and Health Sciences Research Institute, ICVS, School of Medicine, Campus of Gualtar, University of Minho, Braga, Portugal
- ICVS/3B‟s - PT Government Associate Laboratory, Braga, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
- Centre of Molecular and Environmental Biology, CBMA, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Diana Fonseca-Rodrigues
- Life and Health Sciences Research Institute, ICVS, School of Medicine, Campus of Gualtar, University of Minho, Braga, Portugal
- ICVS/3B‟s - PT Government Associate Laboratory, Braga, Portugal
| | | | - Alberto Carlos Pires Dias
- Centre of Molecular and Environmental Biology, CBMA, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Filipa Pinto-Ribeiro
- Life and Health Sciences Research Institute, ICVS, School of Medicine, Campus of Gualtar, University of Minho, Braga, Portugal
- ICVS/3B‟s - PT Government Associate Laboratory, Braga, Portugal
| | | | | | - Akinori Cardozo Nagato
- Department of Physiology, Federal University of Juiz de Fora, UFJF, Juiz de Fora, Brazil
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