BRUNO TADEU MARTINS DE OLIVEIRA

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Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/20 - Laboratório de Terapêutica Experimental, Hospital das Clínicas, Faculdade de Medicina

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Autor e Coautores FMUSP-HC Normalizados: NATHALIA MONTOURO PINHEIRO MENEGASSO ×

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  • conferenceObject
    Plant proteinase from Bauhinia bauhinioides Kallikrein inhibitor (BbKI) attenuates mechanics, inflammation and remodelling induced by elastase in mice
    (2012) OLIVEIRA, Bruno Martins; ALMEIDA-REIS, Rafael; THEODORO, Osmar A.; OLIVA, Leandro V.; RODRIGUES, Daniel Flisch; PINHEIRO, Nathalia; OLIVA, Maria L. V.; PRADO, Carla M.; MARTINS, Milton M.; TIBERIO, Iolanda F. L. C.
  • article 23 Citação(ões) na Scopus
    A Plant Proteinase Inhibitor from Enterolobium contortisiliquum Attenuates Pulmonary Mechanics, Inflammation and Remodeling Induced by Elastase in Mice
    (2017) THEODORO-JUNIOR, Osmar Aparecido; RIGHETTI, Renato Fraga; ALMEIDA-REIS, Rafael; MARTINS-OLIVEIRA, Bruno Tadeu; OLIVA, Leandro Vilela; PRADO, Carla Maximo; SARAIVA-ROMANHOLO, Beatriz Mangueira; LEICK, Edna Aparecida; PINHEIRO, Nathalia Montouro; LOBO, Yara Aparecida; MARTINS, Milton de Arruda; OLIVA, Maria Luiza Vilela; TIBERIO, Iolanda de Fatima Lopes Calvo
    Proteinase inhibitors have been associated with anti-inflammatory and antioxidant activities and may represent a potential therapeutic treatment for emphysema. Our aim was to evaluate the effects of a plant Kunitz proteinase inhibitor, Enterolobium contortisiliquum trypsin inhibitor (EcTI), on several aspects of experimental elastase-induced pulmonary inflammation in mice. C57/Bl6 mice were intratracheally administered elastase (ELA) or saline (SAL) and were treated intraperitoneally with EcTI (ELA-EcTI, SAL-EcTI) on days 1, 14 and 21. On day 28, pulmonary mechanics, exhaled nitric oxide (ENO) and number leucocytes in the bronchoalveolar lavage fluid (BALF) were evaluated. Subsequently, lung immunohistochemical staining was submitted to morphometry. EcTI treatment reduced responses of the mechanical respiratory system, number of cells in the BALF, and reduced tumor necrosis factor- (TNF-), matrix metalloproteinase-9 (MMP-9), matrix metalloproteinase-12 (MMP-12), tissue inhibitor of matrix metalloproteinase (TIMP-1), endothelial nitric oxide synthase (eNOS) and inducible nitric oxide synthase (iNOS)-positive cells and volume proportion of isoprostane, collagen and elastic fibers in the airways and alveolar walls compared with the ELA group. EcTI treatment reduced elastase induced pulmonary inflammation, remodeling, oxidative stress and mechanical alterations, suggesting that this inhibitor may be a potential therapeutic tool for chronic obstructive pulmonary disease (COPD) management.