101
|
Merceron S, Lacave G, Henry-Lagarrigue M, Guezennec P, Troché G, Legriel S, Caille V, Yehia A, François A, Jouan J, Bédos JP, Bruneel F. [Fatal Clarkson syndrome mimicking a septic shock]. Med Mal Infect 2011; 41:336-8. [PMID: 21440390 DOI: 10.1016/j.medmal.2011.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 01/18/2011] [Accepted: 02/14/2011] [Indexed: 11/30/2022]
Affiliation(s)
- S Merceron
- Service de réanimation médico-chirurgicale, centre hospitalier de Versailles, hôpital André-Mignot, 177, rue de Versailles, 78150 Le Chesnay, France.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
103
|
Ong SP, Chu JJH. An update on the host factors contributing to vascular leakage during dengue virus infection. Future Virol 2011. [DOI: 10.2217/fvl.10.86] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Siew Pei Ong
- Laboratory of Molecular RNA Virology & Antiviral Strategies, Department of Microbiology, Yong Loo Lin School of Medicine, National University Health System, 5 Science Drive 2, National University of Singapore, 117597 Singapore
| | | |
Collapse
|
104
|
Guabiraba R, Marques RE, Besnard AG, Fagundes CT, Souza DG, Ryffel B, Teixeira MM. Role of the chemokine receptors CCR1, CCR2 and CCR4 in the pathogenesis of experimental dengue infection in mice. PLoS One 2010; 5:e15680. [PMID: 21206747 PMCID: PMC3012079 DOI: 10.1371/journal.pone.0015680] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 11/19/2010] [Indexed: 11/18/2022] Open
Abstract
Dengue virus (DENV), a mosquito-borne flavivirus, is a public health problem in many tropical countries. Recent clinical data have shown an association between levels of different chemokines in plasma and severity of dengue. We evaluated the role of CC chemokine receptors CCR1, CCR2 and CCR4 in an experimental model of DENV-2 infection in mice. Infection of mice induced evident clinical disease and tissue damage, including thrombocytopenia, hemoconcentration, lymphopenia, increased levels of transaminases and pro-inflammatory cytokines, and lethality in WT mice. Importantly, infected WT mice presented increased levels of chemokines CCL2/JE, CCL3/MIP-1α and CCL5/RANTES in spleen and liver. CCR1-/- mice had a mild phenotype with disease presentation and lethality similar to those of WT mice. In CCR2-/- mice, lethality, liver damage, levels of IL-6 and IFN-γ, and leukocyte activation were attenuated. However, thrombocytopenia, hemoconcentration and systemic TNF-α levels were similar to infected WT mice. Infection enhanced levels of CCL17/TARC, a CCR4 ligand. In CCR4-/- mice, lethality, tissue injury and systemic inflammation were markedly decreased. Despite differences in disease presentation in CCR-deficient mice, there was no significant difference in viral load. In conclusion, activation of chemokine receptors has discrete roles in the pathogenesis of dengue infection. These studies suggest that the chemokine storm that follows severe primary dengue infection associates mostly to development of disease rather than protection.
Collapse
Affiliation(s)
- Rodrigo Guabiraba
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Université d'Orléans and CNRS, UMR 6218, Molecular Immunology and Embryology, Orléans, France
| | - Rafael Elias Marques
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anne-Gaëlle Besnard
- Université d'Orléans and CNRS, UMR 6218, Molecular Immunology and Embryology, Orléans, France
| | - Caio T. Fagundes
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Danielle G. Souza
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Bernhard Ryffel
- Université d'Orléans and CNRS, UMR 6218, Molecular Immunology and Embryology, Orléans, France
| | - Mauro M. Teixeira
- Immunopharmacology, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
| |
Collapse
|
105
|
Kubelka CF, Azeredo EL, Gandini M, Oliveira-Pinto LM, Barbosa LS, Damasco PV, Avila CAL, Motta-Castro ARC, Cunha RV, Cruz OG. Metalloproteinases are produced during dengue fever and MMP9 is associated with severity. J Infect 2010; 61:501-5. [PMID: 20863849 DOI: 10.1016/j.jinf.2010.09.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 09/13/2010] [Accepted: 09/14/2010] [Indexed: 02/04/2023]
|