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Van Bruggen S, Jarrot PA, Thomas E, Sheehy CE, Silva CMS, Hsu AY, Cunin P, Nigrovic PA, Gomes ER, Luo HR, Waterman CM, Wagner DD. NLRP3 is essential for neutrophil polarization and chemotaxis in response to leukotriene B4 gradient. Proc Natl Acad Sci U S A 2023; 120:e2303814120. [PMID: 37603754 PMCID: PMC10468616 DOI: 10.1073/pnas.2303814120] [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: 03/10/2023] [Accepted: 07/21/2023] [Indexed: 08/23/2023] Open
Abstract
Neutrophil recruitment to sites of infection and inflammation is an essential process in the early innate immune response. Upon activation, a subset of neutrophils rapidly assembles the multiprotein complex known as the NLRP3 inflammasome. The NLRP3 inflammasome forms at the microtubule organizing center, which promotes the formation of interleukin (IL)-1β and IL-18, essential cytokines in the immune response. We recently showed that mice deficient in NLRP3 (NLRP3-/-) have reduced neutrophil recruitment to the peritoneum in a model of thioglycolate-induced peritonitis. Here, we tested the hypothesis that this diminished recruitment could be, in part, the result of defects in neutrophil chemotaxis. We find that NLRP3-/- neutrophils show loss of cell polarization, as well as reduced directionality and velocity of migration toward increasing concentrations of leukotriene B4 (LTB4) in a chemotaxis assay in vitro, which was confirmed through intravital microscopy of neutrophil migration toward a laser-induced burn injury of the liver. Furthermore, pharmacologically blocking NLRP3 inflammasome assembly with MCC950 in vitro reduced directionality but preserved nondirectional movement, indicating that inflammasome assembly is specifically required for polarization and directional chemotaxis, but not cell motility per se. In support of this, pharmacological breakdown of the microtubule cytoskeleton via nocodazole treatment induced cell polarization and restored nondirectional cell migration in NLRP3-deficient neutrophils in the LTB4 gradient. Therefore, NLRP3 inflammasome assembly is required for establishment of cell polarity to guide the directional chemotactic migration of neutrophils.
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Affiliation(s)
- Stijn Van Bruggen
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
- Whitman Center, Marine Biological Laboratory, Chicago University, Woods Hole, MA02543
| | - Pierre-André Jarrot
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
| | - Eline Thomas
- Department of Life Science Technology, Imec, Leuven3001, Belgium
- Department of Biophysics, Katholieke Universiteit Leuven, Leuven3000, Belgium
| | - Casey E. Sheehy
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
| | - Camila M. S. Silva
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
| | - Alan Y. Hsu
- Department of Pathology, Harvard Medical School, Boston, MA02115
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Boston, MA02115
- Department of Laboratory Medicine, Boston Children’s Hospital, Boston, MA02115
| | - Pierre Cunin
- Division of Immunology, Department of Pediatrics, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - Peter A. Nigrovic
- Division of Immunology, Department of Pediatrics, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA02115
| | - Edgar R. Gomes
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisbon1649-028, Portugal
| | - Hongbo R. Luo
- Department of Pathology, Harvard Medical School, Boston, MA02115
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Boston, MA02115
- Department of Laboratory Medicine, Boston Children’s Hospital, Boston, MA02115
| | - Clare M. Waterman
- Whitman Center, Marine Biological Laboratory, Chicago University, Woods Hole, MA02543
- Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute of the NIH, Bethesda, MD20892
| | - Denisa D. Wagner
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
- Whitman Center, Marine Biological Laboratory, Chicago University, Woods Hole, MA02543
- Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA02115
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2
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Rodrigues TS, de Sá KSG, Ishimoto AY, Becerra A, Oliveira S, Almeida L, Gonçalves AV, Perucello DB, Andrade WA, Castro R, Veras FP, Toller-Kawahisa JE, Nascimento DC, de Lima MHF, Silva CMS, Caetite DB, Martins RB, Castro IA, Pontelli MC, de Barros FC, do Amaral NB, Giannini MC, Bonjorno LP, Lopes MIF, Santana RC, Vilar FC, Auxiliadora-Martins M, Luppino-Assad R, de Almeida SCL, de Oliveira FR, Batah SS, Siyuan L, Benatti MN, Cunha TM, Alves-Filho JC, Cunha FQ, Cunha LD, Frantz FG, Kohlsdorf T, Fabro AT, Arruda E, de Oliveira RDR, Louzada-Junior P, Zamboni DS. Inflammasomes are activated in response to SARS-CoV-2 infection and are associated with COVID-19 severity in patients. J Exp Med 2020; 218:211560. [PMID: 33231615 PMCID: PMC7684031 DOI: 10.1084/jem.20201707] [Citation(s) in RCA: 502] [Impact Index Per Article: 125.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/19/2020] [Accepted: 11/10/2020] [Indexed: 12/26/2022] Open
Abstract
Severe cases of COVID-19 are characterized by a strong inflammatory process that may ultimately lead to organ failure and patient death. The NLRP3 inflammasome is a molecular platform that promotes inflammation via cleavage and activation of key inflammatory molecules including active caspase-1 (Casp1p20), IL-1β, and IL-18. Although participation of the inflammasome in COVID-19 has been highly speculated, the inflammasome activation and participation in the outcome of the disease are unknown. Here we demonstrate that the NLRP3 inflammasome is activated in response to SARS-CoV-2 infection and is active in COVID-19 patients. Studying moderate and severe COVID-19 patients, we found active NLRP3 inflammasome in PBMCs and tissues of postmortem patients upon autopsy. Inflammasome-derived products such as Casp1p20 and IL-18 in the sera correlated with the markers of COVID-19 severity, including IL-6 and LDH. Moreover, higher levels of IL-18 and Casp1p20 are associated with disease severity and poor clinical outcome. Our results suggest that inflammasomes participate in the pathophysiology of the disease, indicating that these platforms might be a marker of disease severity and a potential therapeutic target for COVID-19.
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Affiliation(s)
- Tamara S Rodrigues
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Keyla S G de Sá
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Adriene Y Ishimoto
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Amanda Becerra
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Samuel Oliveira
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Leticia Almeida
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Center of Research in Inflammatory Diseases, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Augusto V Gonçalves
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Debora B Perucello
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Warrison A Andrade
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Ricardo Castro
- Departamento de Análises Clínicas, Toxicológicas e Bromatologia, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Flavio P Veras
- Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Juliana E Toller-Kawahisa
- Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Daniele C Nascimento
- Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Mikhael H F de Lima
- Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Camila M S Silva
- Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Diego B Caetite
- Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Ronaldo B Martins
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Italo A Castro
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Marjorie C Pontelli
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Fabio C de Barros
- Departamento de Biologia, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Departamento de Ecologia e Biologia Evolutiva, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil
| | - Natália B do Amaral
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Marcela C Giannini
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Letícia P Bonjorno
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Maria Isabel F Lopes
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Rodrigo C Santana
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Fernando C Vilar
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Maria Auxiliadora-Martins
- Divisão de Medicina Intensiva, Departamento de Cirurgia e Anatomia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Rodrigo Luppino-Assad
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Sergio C L de Almeida
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Fabiola R de Oliveira
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Sabrina S Batah
- Departamento de Patologia e Medicina Legal, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Li Siyuan
- Departamento de Patologia e Medicina Legal, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Maira N Benatti
- Departamento de Patologia e Medicina Legal, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Thiago M Cunha
- Center of Research in Inflammatory Diseases, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - José C Alves-Filho
- Center of Research in Inflammatory Diseases, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Fernando Q Cunha
- Center of Research in Inflammatory Diseases, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Larissa D Cunha
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Fabiani G Frantz
- Departamento de Análises Clínicas, Toxicológicas e Bromatologia, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Tiana Kohlsdorf
- Departamento de Biologia, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Alexandre T Fabro
- Departamento de Patologia e Medicina Legal, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Eurico Arruda
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Renê D R de Oliveira
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Paulo Louzada-Junior
- Divisão de Imunologia Clinica, Emergência, Doenças Infecciosas e Unidade de Terapia Intensiva, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Dario S Zamboni
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.,Center of Research in Inflammatory Diseases, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
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Freitas AKL, Silva MTB, Silva CMS, Prata MMG, Rodrigues FAP, Siqueira RJB, Lima AAM, Santos AA, Havt A. Alanyl-glutamine protects the intestinal barrier function in trained rats against the impact of acute exhaustive exercise. ACTA ACUST UNITED AC 2020; 53:e9211. [PMID: 32321150 PMCID: PMC7184964 DOI: 10.1590/1414-431x20209211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 02/11/2020] [Indexed: 01/29/2023]
Abstract
Strenuous exercise triggers deleterious effects on the intestinal epithelium, but their mechanisms are still uncertain. Here, we investigated whether a prolonged training and an additional exhaustive training protocol alter intestinal permeability and the putative effect of alanyl-glutamine (AG) pretreatment in this condition. Rats were allocated into 5 different groups: 1) sedentary; 2 and 3) trained (50 min per day, 5 days per week for 12 weeks) with or without 6 weeks oral (1.5 g/kg) AG supplementation; 4 and 5) trained and subjected to an additional exhaustive test protocol with or without oral AG supplementation. Venous blood samples were collected to determine gasometrical indices at the end of the 12-week protocol or after exhaustive test. Lactate and glucose levels were determined before, during, and after the exhaustive test. Ileum tissue collected after all experimental procedures was used for gene expression analysis of Zonula occludens 1 (ZO-1), occludin, claudin-2, and oligopeptide transporter 1 (PepT-1). Intestinal permeability was assessed by urinary lactulose/mannitol test collected after the 12-week protocol or the exhaustive test. The exhaustive test decreased pH and base excess and increased pCO2. Training sessions delayed exhaustion time and reduced the changes in blood glucose and lactate levels. Trained rats exhibited upregulation of PEPT-1, ZO-1, and occludin mRNA, which were partially protected by AG. Exhaustive exercise induced intestinal paracellular leakage associated with the upregulation of claudin-2, a phenomenon protected by AG treatment. Thus, AG partially prevented intestinal training adaptations but also blocked paracellular leakage during exhaustive exercise involving claudin-2 and occludin gene expression.
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Affiliation(s)
- A K L Freitas
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - M T B Silva
- Departamento de Educação Física, Universidade Federal do Piauí, Teresina, PI, Brasil
| | - C M S Silva
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - M M G Prata
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - F A P Rodrigues
- Departamento de Educação Física e Esporte, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Fortaleza, CE, Brasil
| | - R J B Siqueira
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A A M Lima
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A A Santos
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A Havt
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
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4
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Volschan ICM, Kasuki L, Silva CMS, Alcantara ML, Saraiva RM, Xavier SS, Gadelha MR. Two-dimensional speckle tracking echocardiography demonstrates no effect of active acromegaly on left ventricular strain. Pituitary 2017; 20:349-357. [PMID: 28220351 DOI: 10.1007/s11102-017-0795-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Speckle tracking echocardiography (STE) allows for the study of myocardial strain (ε), a marker of early and subclinical ventricular systolic dysfunction. Cardiac disease may be present in patients with acromegaly; however, STE has never been used to evaluate these patients. OBJECTIVE To evaluate left ventricular (LV) global longitudinal strain in patients with active acromegaly with normal LV systolic function. DESIGN Cross-sectional clinical study. METHODS Patients with active acromegaly with no detectable heart disease and a control group were matched for age, gender, arterial hypertension and diabetes mellitus underwent STE. Global LV longitudinal ε (GLS), left ventricular mass index (LVMi), left ventricular ejection fraction (LVEF) and relative wall thickness (RWT) were obtained via two-dimensional (2D) echocardiography using STE. RESULTS Thirty-seven patients with active acromegaly (mean age 45.6 ± 13.8; 48.6% were males) and 48 controls were included. The mean GLS was not significantly different between the acromegaly group and the control group (in %, -20.1 ± 3.1 vs. -19.4 ± 2.2, p = 0.256). Mean LVMi was increased in the acromegaly group (in g/m2, 101.6 ± 27.1 vs. 73.2 ± 18.6, p < 0.01). There was a negative correlation between LVMi and GLS (r = -0.39, p = 0.01). CONCLUSIONS Acromegaly patients, despite presenting with a higher LVMi when analyzed by 2D echocardiography, did not present with impairment in the strain when compared to a control group; this finding indicates a low chance of evolution to systolic dysfunction and agrees with recent studies that show a lower frequency of cardiac disease in these patients.
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Affiliation(s)
- I C M Volschan
- Cardiology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rodolpho Paulo Rocco, 255, 9th floor, Ilha do Fundão, Rio de Janeiro, 21941-913, Brazil.
| | - L Kasuki
- Neuroendocrinology Research Center/ Endocrinology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Neuroendocrine Unit, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde do Rio de Janeiro, Rio de Janeiro, Brazil
- Endocrine Section, Hospital Federal de Bonsucesso, Rio de Janeiro, Brazil
| | - C M S Silva
- Neuroendocrinology Research Center/ Endocrinology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - M L Alcantara
- Echocardiographic Section, Hospital Samaritano e Americas Medical City, Rio de Janeiro, Brazil
| | - R M Saraiva
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - S S Xavier
- Cardiology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rodolpho Paulo Rocco, 255, 9th floor, Ilha do Fundão, Rio de Janeiro, 21941-913, Brazil
| | - M R Gadelha
- Neuroendocrinology Research Center/ Endocrinology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Neuroendocrine Unit, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde do Rio de Janeiro, Rio de Janeiro, Brazil
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5
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Silva CMS, Wanderley CWS, Lima-Junior FJB, de Sousa DP, Lima JT, Magalhães PJC, Santos AA, Palheta-Junior RC. Carvone (R)-(-) and (S)-(+) enantiomers inhibits upper gastrointestinal motility in mice. FLAVOUR FRAG J 2015. [DOI: 10.1002/ffj.3267] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Camila M. S. Silva
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina; Universidade Federal do Ceará; CE Brazil
| | - Carlos W. S. Wanderley
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina; Universidade Federal do Ceará; CE Brazil
| | | | - Damião P. de Sousa
- Departamento de Ciências Farmacêuticas; Universidade Federal da Paraíba; PB Brazil
| | - Julianeli T. Lima
- Colegiado de Ciências Farmacêuticas, Universidade Federal do Vale do São Francisco, Petrolina, PE, Brazil
| | - Pedro J. C. Magalhães
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina; Universidade Federal do Ceará; CE Brazil
| | - Armênio A. Santos
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina; Universidade Federal do Ceará; CE Brazil
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6
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Wanderley CWS, Silva CMS, Wong DVT, Ximenes RM, Morelo DFC, Cosker F, Aragão KS, Fernandes C, Palheta-Júnior RC, Havt A, Brito GAC, Cunha FQ, Ribeiro RA, Lima-Júnior RCP. Bothrops jararacussu snake venom-induces a local inflammatory response in a prostanoid- and neutrophil-dependent manner. Toxicon 2014; 90:134-47. [PMID: 25127849 DOI: 10.1016/j.toxicon.2014.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 07/29/2014] [Accepted: 08/05/2014] [Indexed: 12/16/2022]
Abstract
Local tissue reactions provoked by Bothrops venoms are characterized by edema, hemorrhage, pain, and inflammation; however, the mechanisms of tissue damage vary depending upon the species of snake. Here, we investigated the mechanisms involved in the local inflammatory response induced by the Bothrops jararacussu venom (BjcuV). Female Swiss mice were injected with either saline, BjcuV (0.125-8 μg/paw) or loratadine (an H1 receptor antagonist), compound 48/80 (for mast cell depletion), capsaicin (for C-fiber desensitization), infliximab (an anti-TNF-α antibody), indomethacin (a non-specific COX inhibitor), celecoxib (a selective COX-2 inhibitor) or fucoidan (a P- and L-selectins modulator) given before BjcuV injection. Paw edema was measured by plethysmography. In addition, paw tissues were collected for the measurement of myeloperoxidase activity, TNF-α and IL-1 levels, and COX-2 immunoexpression. The direct chemotactic effect of BjcuV and the in vitro calcium dynamic in neutrophils were also investigated. BjcuV caused an edematogenic response with increased local production of TNF-α and IL-1β as well as COX-2 expression. Both edema and neutrophil migration were prevented by pretreatment with indomethacin, celecoxib or fucoidan. Furthermore, BjcuV induced a direct in vitro neutrophil chemotaxis by increasing intracellular calcium. Therefore, BjcuV induces an early onset edema dependent upon prostanoid production and neutrophil migration.
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Affiliation(s)
- C W S Wanderley
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - C M S Silva
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - D V T Wong
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - R M Ximenes
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - D F C Morelo
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Brazil
| | - F Cosker
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - K S Aragão
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - C Fernandes
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - R C Palheta-Júnior
- College of Veterinary Medicine, Federal University of Vale do São Francisco, Brazil
| | - A Havt
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - G A C Brito
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - F Q Cunha
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Brazil
| | - R A Ribeiro
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - R C P Lima-Júnior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil.
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Lima FJB, Cosker F, Brito TS, Ribeiro-Filho HV, Silva CMS, Aragão KS, Lahlou S, Souza MHLP, Santos AA, Magalhães PJC. Antispasmodic and myorelaxant effects of the flavoring agent methyl cinnamate in gut: potential inhibition of tyrosine kinase. Eur J Pharmacol 2014; 740:192-9. [PMID: 25046838 DOI: 10.1016/j.ejphar.2014.07.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 07/07/2014] [Accepted: 07/09/2014] [Indexed: 01/09/2023]
Abstract
Methyl cinnamate (MC) is a safe flavoring agent useful to food industry. Although chemically analog to tyrosine kinase inhibitors, there is little information regarding its biological actions. Here, we aimed at assessing the MC effects on gastrointestinal contractility and the putative involvement of tyrosine kinase in the mediation of these effects. Isometric contractions were recorded in rat isolated strips from stomach, duodenum and colon segments. In gastric strips, MC (3-3000 µM) showed antispasmodic effects against carbachol-induced contractions, which remained unchanged by either l-NAME or tetraethylammonium pretreatment and occurred with potency similar to that obtained against contractions evoked by potassium or U-46619. In colon strips, MC was four times more potent than in gastric ones. MC and the positive control genistein inhibited phasic contractions induced by acetylcholine in Ca2+-free medium, an effect fully prevented by sodium orthovanadate. Both MC and genistein decreased the spontaneous contractions of duodenal strips and shortened the time necessary for gastric fundic tissues to reach 50% of maximal relaxation. In freshly isolated colon myocytes, MC decreased the basal levels of cytoplasmic Ca2+, but not the potassium-elicited cytoplasmic Ca2+ elevation. Colon strips obtained from rats subjected to intracolonic acetic acid instillation showed reduced contractility to potassium, which was partially recovered in MC-treated rats. Inhibitory effect of nifedipine against cholinergic contractions, blunted in acetic acid-induced colitis, was also recovered in MC-treated rats. In conclusion, MC inhibited the gastrointestinal contractility with a probable involvement of tyrosine kinase pathways. In vivo, it was effective to prevent the deleterious effects of colitis resulting from acetic acid injury.
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Affiliation(s)
- Francisco J B Lima
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - François Cosker
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Teresinha S Brito
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Hélder V Ribeiro-Filho
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Camila M S Silva
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Karoline S Aragão
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Saad Lahlou
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Marcellus H L P Souza
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Armênio A Santos
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil
| | - Pedro J C Magalhães
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, R. Cel. Nunes de Melo 1127, Fortaleza, CE, Brazil.
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