Data/hora: 08/06/2024 07:39:59

Provedor de dados: | Journal of Venomous Animals and Toxins Including Tropical Diseases
País: | Brazil
Título: | Lack of correlation between rabies virus replication in the brain and antibody isotype profile in genetically modified mice
Autores: | Consales,C. A.; Pereira,C. A.; Passos,E. C.; Carrieri,M. L.; Galina,N. M. F.; Sant'Anna,O. A.
Data: | 2006-01-01
Ano: | 2006
Palavras-chave: | Rabies; Infection; Isotypes; Nervous system.
Resumo: | The relationship among the phenotypes resistance to infection, virus replication in the brain and isotype production was investigated in genetically modified High (H) or Low (L) antibody responder mouse lines. Although they express the same innate susceptibility to rabies infection, these lines differ as to different viral replication rates in the central nervous system and L mice showed a higher permissible state. After intramuscular infection with the Pasteur rabies strain (PV), the H-L interline differences on the earlier stage of virus replication were 1000 and 80 folds on days 5 and 6, respectively. The isotype profile in sera of the experimentally infected mice reflected an interline difference of 25 folds for IgG2a throughout the infection period, and for the IgE production the H-L difference was highly significant only at the beginning of the process. These results confirm the multi-specific effect of antibody immune responsiveness and the general isotype distribution of antibodies in these genetically selected mice. Contrary to the clear correlation between antibody responsiveness and the acquired resistance to rabies infection, the present study demonstrates that the constitutive genetic character of High and Low responder individuals does not intervene in the degree of resistance following infection. Altogether, this study contributes to the knowledge of the protective role of the general innate responsiveness on the pathological pattern to rabies virus infection.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992006000300007
Editor: | Centro de Estudos de Venenos e Animais Peçonhentos
Relação: | 10.1590/S1678-91992006000300007
Formato: | text/html
Fonte: | Journal of Venomous Animals and Toxins including Tropical Diseases  v.12 n.3 2006
Fonte: | info:eu-repo/semantics/openAccess