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Galli TT, de Campos EC, do Nascimento Camargo L, Fukuzaki S, Dos Santos TM, Hamaguchi SSS, Bezerra SKM, Silva FJA, Rezende BG, Dos Santos Lopes FTQ, Olivo CR, Saraiva-Romanholo BM, Prado CM, Leick EA, Bourotte CLM, Benseñor IJM, Lotufo PA, Righetti RF, Tibério IFLC. Effects of environmental exposure to iron powder on healthy and elastase-exposed mice. Sci Rep 2024; 14:9134. [PMID: 38644380 PMCID: PMC11033283 DOI: 10.1038/s41598-024-59573-8] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 04/12/2024] [Indexed: 04/23/2024] Open
Abstract
Prolonged exposure to iron powder and other mineral dusts can threaten the health of individuals, especially those with COPD. The goal of this study was to determine how environmental exposure to metal dust from two different mining centers in Brazil affects lung mechanics, inflammation, remodeling and oxidative stress responses in healthy and elastase-exposed mice. This study divided 72 male C57Bl/6 mice into two groups, the summer group and the winter group. These groups were further divided into six groups: control, nonexposed (SAL); nonexposed, given elastase (ELA); exposed to metal powder at a mining company (SAL-L1 and ELA-L1); and exposed to a location three miles away from the mining company (SAL-L2 and ELA-L2) for four weeks. On the 29th day of the protocol, the researchers assessed lung mechanics, bronchoalveolar lavage fluid (BALF), inflammation, remodeling, oxidative stress, macrophage iron and alveolar wall alterations (mean linear intercept-Lm). The Lm was increased in the ELA, ELA-L1 and ELA-L2 groups compared to the SAL group (p < 0.05). There was an increase in the total number of cells and macrophages in the ELA-L1 and ELA-L2 groups compared to the other groups (p < 0.05). Compared to the ELA and SAL groups, the exposed groups (ELA-L1, ELA-L2, SAL-L1, and SAL-L2) exhibited increased expression of IL-1β, IL-6, IL-10, IL-17, TNF-α, neutrophil elastase, TIMP-1, MMP-9, MMP-12, TGF-β, collagen fibers, MUC5AC, iNOS, Gp91phox, NFkB and iron positive macrophages (p < 0.05). Although we did not find differences in lung mechanics across all groups, there were low to moderate correlations between inflammation remodeling, oxidative stress and NFkB with elastance, resistance of lung tissue and iron positive macrophages (p < 0.05). Environmental exposure to iron, confirmed by evaluation of iron in alveolar macrophages and in air, exacerbated inflammation, initiated remodeling, and induced oxidative stress responses in exposed mice with and without emphysema. Activation of the iNOS, Gp91phox and NFkB pathways play a role in these changes.
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Affiliation(s)
| | | | | | - Silvia Fukuzaki
- Faculdade de Medicina (FMUSP), São Paulo, Brazil
- Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Renato Fraga Righetti
- Faculdade de Medicina (FMUSP), São Paulo, Brazil
- Hospital Sírio-Libanês, São Paulo, Brazil
| | - Iolanda Fátima Lopes Calvo Tibério
- Faculdade de Medicina (FMUSP), São Paulo, Brazil.
- University of São Paulo, Av. Dr. Arnaldo, 455 - Cerqueira César, São Paulo, SP, 01246-903 - Laboratory LIM20, Brazil.
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2
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Barbosa JAS, da Silva LLS, João JMLG, de Campos EC, Fukuzaki S, Camargo LDN, dos Santos TM, dos Santos HT, Bezerra SKM, Saraiva-Romanholo BM, Lopes FDTQDS, Bonturi CR, Oliva MLV, Leick EA, Righetti RF, Tibério IDFLC. Investigating the Effects of a New Peptide, Derived from the Enterolobium contortisiliquum Proteinase Inhibitor (EcTI), on Inflammation, Remodeling, and Oxidative Stress in an Experimental Mouse Model of Asthma-Chronic Obstructive Pulmonary Disease Overlap (ACO). Int J Mol Sci 2023; 24:14710. [PMID: 37834157 PMCID: PMC10573003 DOI: 10.3390/ijms241914710] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
The synthesized peptide derived from Enterolobium contortisiliquum (pep3-EcTI) has been associated with potent anti-inflammatory and antioxidant effects, and it may be a potential new treatment for asthma-COPD overlap-ACO). Purpose: To investigate the primary sequence effects of pep3-EcTI in an experimental ACO. BALB/c mice were divided into eight groups: SAL (saline), OVA (ovalbumin), ELA (elastase), ACO (ovalbumin + elastase), ACO-pep3-EcTI (treated with inhibitor), ACO-DX (treated with dexamethasone), ACO-DX-pep3-EcTI (treated with dexamethasone and inhibitor), and SAL-pep3-EcTI (saline group treated with inhibitor). We evaluated the hyperresponsiveness to methacholine, exhaled nitric oxide, bronchoalveolar lavage fluid (BALF), mean linear intercept (Lm), inflammatory markers, tumor necrosis factor (TNF-α), interferon (IFN)), matrix metalloproteinases (MMPs), growth factor (TGF-β), collagen fibers, the oxidative stress marker inducible nitric oxide synthase (iNOS), transcription factors, and the signaling pathway NF-κB in the airways (AW) and alveolar septa (AS). Statistical analysis was conducted using one-way ANOVA and t-tests, significant when p < 0.05. ACO caused alterations in the airways and alveolar septa. Compared with SAL, ACO-pep3-EcTI reversed the changes in the percentage of resistance of the respiratory system (%Rrs), the elastance of the respiratory system (%Ers), tissue resistance (%Gtis), tissue elastance (%Htis), airway resistance (%Raw), Lm, exhaled nitric oxide (ENO), lymphocytes, IL-4, IL-5, IL-6, IL-10, IL-13, IL-17, TNF-α, INF-γ, MMP-12, transforming growth factor (TGF)-β, collagen fibers, and iNOS. ACO-DX reversed the changes in %Rrs, %Ers, %Gtis, %Htis, %Raw, total cells, eosinophils, neutrophils, lymphocytes, macrophages, IL-1β, IL-6, IL-10, IL-13, IL-17, TNF-α, INF-γ, MMP-12, TGF-β, collagen fibers, and iNOS. ACO-DX-pep3-EcTI reversed the changes, as was also observed for the pep3-EcTI and the ACO-DX-pep3-EcTI. Significance: The pep3-EcTI was revealed to be a promising strategy for the treatment of ACO, asthma, and COPD.
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Affiliation(s)
- Jéssica Anastácia Silva Barbosa
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
- Hospital Sírio Libanês, São Paulo 01308-050, Brazil
| | - Luana Laura Sales da Silva
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
| | - Juliana Morelli Lopes Gonçalves João
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
- Hospital Sírio Libanês, São Paulo 01308-050, Brazil
| | - Elaine Cristina de Campos
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
- Hospital Sírio Libanês, São Paulo 01308-050, Brazil
| | - Silvia Fukuzaki
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
| | - Leandro do Nascimento Camargo
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
- Hospital Sírio Libanês, São Paulo 01308-050, Brazil
| | - Tabata Maruyama dos Santos
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
- Hospital Sírio Libanês, São Paulo 01308-050, Brazil
| | - Henrique Tibucheski dos Santos
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
| | - Suellen Karoline Moreira Bezerra
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
| | - Beatriz Mangueira Saraiva-Romanholo
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
- Department of Medicine, University City of São Paulo, São Paulo 03071-000, Brazil
| | - Fernanda Degobbi Tenório Quirino dos Santos Lopes
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
| | - Camila Ramalho Bonturi
- Departamento de Bioquímica, Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-002, Brazil; (C.R.B.); (M.L.V.O.)
| | - Maria Luiza Vilela Oliva
- Departamento de Bioquímica, Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-002, Brazil; (C.R.B.); (M.L.V.O.)
| | - Edna Aparecida Leick
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
| | - Renato Fraga Righetti
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
- Hospital Sírio Libanês, São Paulo 01308-050, Brazil
| | - Iolanda de Fátima Lopes Calvo Tibério
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil; (J.A.S.B.); (L.L.S.d.S.); (J.M.L.G.J.); (E.C.d.C.); (S.F.); (L.d.N.C.); (T.M.d.S.); (H.T.d.S.); (S.K.M.B.); (B.M.S.-R.); (F.D.T.Q.d.S.L.); (E.A.L.); (R.F.R.)
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3
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Silva LLSD, Barbosa JAS, João JMLG, Fukuzaki S, Camargo LDN, Dos Santos TM, Campos ECD, Costa AS, Saraiva-Romanholo BM, Bezerra SKM, Lopes FTQDS, Bonturi CR, Oliva MLV, Leick EA, Righetti RF, Tibério IDFLC. Effects of a Peptide Derived from the Primary Sequence of a Kallikrein Inhibitor Isolated from Bauhinia bauhinioides (pep-BbKI) in an Asthma-COPD Overlap (ACO) Model. Int J Mol Sci 2023; 24:11261. [PMID: 37511021 PMCID: PMC10379932 DOI: 10.3390/ijms241411261] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023] Open
Abstract
(1) There are several patients with asthma-COPD overlap (ACO). A peptide derived from the primary sequence of a kallikrein inhibitor isolated from Bauhinia bauhinioides (pep-BbKI) has potent anti-inflammatory and antioxidant effects. Purpose: To investigate the effects of pep-BbKI treatment in an ACO model and compare them with those of corticosteroids. (2) BALB/c mice were divided into groups: SAL (saline), OVA (ovalbumin), ELA (elastase), ACO (ovalbumin + elastase), ACO-pep-BbKI (treated with inhibitor), ACO-DX (dexamethasone treatment), ACO-DX-pep-BbKI (both treatments), and SAL-pep-BbKI (saline group treated with inhibitor). We evaluated: hyperresponsiveness to methacholine, bronchoalveolar lavage fluid (BALF), exhaled nitric oxide (eNO), IL-1β, IL-4, IL-5, IL-6, IL-10, IL-13, IL-17, IFN-γ, TNF-α, MMP-9, MMP-12, TGF-β, collagen fibers, iNOS, eNO, linear mean intercept (Lm), and NF-κB in airways (AW) and alveolar septa (AS). (3) ACO-pep-BbKI reversed ACO alterations and was similar to SAL in all mechanical parameters, Lm, neutrophils, IL-5, IL-10, IL-17, IFN-γ, TNF-α, MMP-12 (AW), collagen fibers, iNOS (AW), and eNO (p > 0.05). ACO-DX reversed ACO alterations and was similar to SAL in all mechanical parameters, Lm, total cells and differentials, IL-1β(AS), IL-5 (AS), IL-6 (AS), IL-10 (AS), IL-13 (AS), IFN-γ, MMP-12 (AS), TGF-β (AS), collagen fibers (AW), iNOS, and eNO (p > 0.05). SAL was similar to SAL-pep-BbKI for all comparisons (p > 0.05). (4) Pep-BbKI was similar to dexamethasone in reducing the majority of alterations of this ACO model.
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Affiliation(s)
| | | | | | - Silvia Fukuzaki
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil
| | | | | | | | - Arthur Silva Costa
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Beatriz Mangueira Saraiva-Romanholo
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil
- Department of Medicine, University City of São Paulo, São Paulo 03071-000, Brazil
| | | | | | - Camila Ramalho Bonturi
- Departamento de Bioquímica, Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-002, Brazil
| | - Maria Luiza Vilela Oliva
- Departamento de Bioquímica, Universidade Federal de São Paulo (UNIFESP), São Paulo 04039-002, Brazil
| | - Edna Aparecida Leick
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil
| | - Renato Fraga Righetti
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo 01246-903, Brazil
- Hospital Sírio-Libanês, São Paulo 01308-050, Brazil
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