Author | Barreto, Débora Ferreira | |
Author | Takiya, Christina Maeda | |
Author | Schatzmayr, Hermann Gonçalves | |
Author | Nogueira, Rita Maria Ribeiro | |
Author | Farias Filho, José da Costa | |
Author | Barth, Ortrud Monika | |
Access date | 2020-03-10T12:35:33Z | |
Available date | 2020-03-10T12:35:33Z | |
Document date | 2007 | |
Citation | BARRETO, Débora Ferreira et al. Histopathological and ultrastructural aspects of mice lungs experimentally infected with dengue virus serotype 2. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 102, n. 2, p. 175-182, Mar. 2007. | pt_BR |
ISSN | 0074-0206 | pt_BR |
URI | https://www.arca.fiocruz.br/handle/icict/40269 | |
Language | eng | pt_BR |
Publisher | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz | pt_BR |
Rights | open access | |
Subject in Portuguese | Vírus da Dengue tipo 2 | pt_BR |
Subject in Portuguese | Macrófagos | pt_BR |
Subject in Portuguese | Mastócitos | pt_BR |
Subject in Portuguese | Camundongos BALB / c | pt_BR |
Subject in Portuguese | Ultraestrutura | pt_BR |
Title | Histopathological and ultrastructural aspects of mice lungs experimentally infected with dengue virus serotype 2 | pt_BR |
Type | Article | |
DOI | 10.1590/s0074-02762007005000007 | |
Abstract | Histological and ultrastructural alterations in lung tissue of BALB/c mice infected with dengue virus serotype 2 (non-neuroadapted), by intraperitoneal and intravenous routes were analyzed. Lung tissues were processed following the standard techniques for photonic and electron transmission microscopies. Histopathological and ultrastructural studies showed interstitial pneumonia, characterized by the presence of mononuclear cells. In the mouse model, the dengue virus serotype 2 seems to led to a transient inflammatory process without extensive damage to the interalveolar septa, but caused focal alterations of the blood-exchange barrier. Endothelial cells of blood capillaries exhibited phyllopodia suggesting activation by presence of dengue virus. Morphometrical analysis of mast cells showed an expressive increase of the number of these cells in peribronchiolar spaces and adjacent areas to the interalveolar septa. Alveolar macrophages showed particles dengue virus-like inside rough endoplasmic reticulum and Golgi complex, suggesting viral replication. The tissue alterations observed in our experimental model were similar to the observed in human cases of dengue fever and dengue hemorrhagic fever. Our results show that BALB/c mice are permissive host for dengue virus serotype 2 replication and therefore provides an useful model to study of morphological aspects of dengue virus infection. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Virologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Universidade Federal do Rio de Janeiro. Instituto de Ciências Biomédicas. Departamento de Histologia e Embriologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Virologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Virologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Virologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Virologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Subject | Dengue-2 virus | pt_BR |
Subject | BALB/c mice | pt_BR |
Subject | C6/36 cell line | pt_BR |
Subject | Macrophage | pt_BR |
Subject | Mast cell | pt_BR |
Subject | Ultrastructure | pt_BR |
e-ISSN | 1678-8060 | |