γδ T cells: first line of defense and beyond.
Annu Rev Immunol
; 32: 121-55, 2014.
Article
em En
| MEDLINE
| ID: mdl-24387714
ABSTRACT
γδ T cells, αß T cells, and B cells are present together in all but the most primitive vertebrates, suggesting that each population contributes to host immune competence uniquely and that all three are necessary for maintaining immune competence. Functional and molecular analyses indicate that in infections, γδ T cells respond earlier than αß T cells do and that they emerge late after pathogen numbers start to decline. Thus, these cells may be involved in both establishing and regulating the inflammatory response. Moreover, γδ T cells and αß T cells are clearly distinct in their antigen recognition and activation requirements as well as in the development of their antigen-specific repertoire and effector function. These aspects allow γδ T cells to occupy unique temporal and functional niches in host immune defense. We review these and other advances in γδ T cell biology in the context of their being the major initial IL-17 producers in acute infection.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Subpopulações de Linfócitos T
/
Receptores de Antígenos de Linfócitos T gama-delta
/
Imunidade
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Annu Rev Immunol
Ano de publicação:
2014
Tipo de documento:
Article