Plant Proteinase Inhibitor BbCI Modulates Lung Inflammatory Responses and Mechanic and Remodeling Alterations Induced by Elastase in Mice
Joint Authors
Lopes, Fernanda Degobbi Tenório Quirino dos Santos
Leick, Edna Aparecida
Owen, Caroline A.
Martins-Olivera, Bruno Tadeu
Almeida-Reis, Rafael
Theodoro-Júnior, Osmar Aparecido
Oliva, Leandro Vilela
Prado, Carla Máximo
Choqueta de Toledo-Arruda, Alessandra
Oliva, Maria Luiza Vilela
Bonturi, Camila R.
Brito, Marlon V.
Florencio, Ariana C.
Tibério, Iolanda F. L. C.
Martins, Milton Arruda
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-30
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Background.
Proteinases play a key role in emphysema.
Bauhinia bauhinioides cruzipain inhibitor (BbCI) is a serine-cysteine proteinase inhibitor.
We evaluated BbCI treatment in elastase-induced pulmonary alterations.
Methods.
C57BL/6 mice received intratracheal elastase (ELA group) or saline (SAL group).
One group of mice was treated with BbCI (days 1, 15, and 21 after elastase instillation, ELABC group).
Controls received saline and BbCI (SALBC group).
After 28 days, we evaluated respiratory mechanics, exhaled nitric oxide, and bronchoalveolar lavage fluid.
In lung tissue we measured airspace enlargement, quantified neutrophils, TNFα-, MMP-9-, MMP-12-, TIMP-1-, iNOS-, and eNOS-positive cells, 8-iso-PGF2α, collagen, and elastic fibers in alveolar septa and airways.
MUC-5-positive cells were quantified only in airways.
Results.
BbCI reduced elastase-induced changes in pulmonary mechanics, airspace enlargement and elastase-induced increases in total cells, and neutrophils in BALF.
BbCI reduced macrophages and neutrophils positive cells in alveolar septa and neutrophils and TNFα-positive cells in airways.
BbCI attenuated elastic and collagen fibers, MMP-9- and MMP-12-positive cells, and isoprostane and iNOS-positive cells in alveolar septa and airways.
BbCI reduced MUC5ac-positive cells in airways.
Conclusions.
BbCI improved lung mechanics and reduced lung inflammation and airspace enlargement and increased oxidative stress levels induced by elastase.
BbCI may have therapeutic potential in chronic obstructive pulmonary disease.
American Psychological Association (APA)
Almeida-Reis, Rafael& Theodoro-Júnior, Osmar Aparecido& Martins-Olivera, Bruno Tadeu& Oliva, Leandro Vilela& Choqueta de Toledo-Arruda, Alessandra& Bonturi, Camila R.…[et al.]. 2017. Plant Proteinase Inhibitor BbCI Modulates Lung Inflammatory Responses and Mechanic and Remodeling Alterations Induced by Elastase in Mice. BioMed Research International،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1139011
Modern Language Association (MLA)
Almeida-Reis, Rafael…[et al.]. Plant Proteinase Inhibitor BbCI Modulates Lung Inflammatory Responses and Mechanic and Remodeling Alterations Induced by Elastase in Mice. BioMed Research International No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1139011
American Medical Association (AMA)
Almeida-Reis, Rafael& Theodoro-Júnior, Osmar Aparecido& Martins-Olivera, Bruno Tadeu& Oliva, Leandro Vilela& Choqueta de Toledo-Arruda, Alessandra& Bonturi, Camila R.…[et al.]. Plant Proteinase Inhibitor BbCI Modulates Lung Inflammatory Responses and Mechanic and Remodeling Alterations Induced by Elastase in Mice. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1139011
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1139011