Implication of the common gamma chain of the IL-7 receptor in intrathymic development of pro-T cells.
Int Immunol
; 6(9): 1451-4, 1994 Sep.
Article
em En
| MEDLINE
| ID: mdl-7819155
ABSTRACT
The effects of IL-7 on the growth and differentiation of thymocytes were analyzed using murine fetal thymus organ cultures (FTOC) in the presence of mAbs specific for the conventional IL-7 receptor (IL-7R) and for the common gamma (gamma c) chain. In FTOC, the development of CD4-CD8- double-negative thymocytes to CD4+CD8+ double-positive (DP) and CD4+ or CD8+ single-positive (SP) cells was not completely blocked by adding these mAbs, although cell growth was reduced by the treatment. To define a developing stage sensitive to the mAbs, most immature thymocytes, Pgp-1+ c-kit+ cells, were cultured in 2-deoxyguanosine treated fetal thymus. In the presence of both mAbs in the culture, neither DP nor SP thymocytes developed whereas either of the mAbs partially blocked their development. These results indicate that the gamma c chain is involved in early T cell development as an indispensable subunit of the functional IL-7 receptor complex.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Timo
/
Linfócitos T CD4-Positivos
/
Receptores de Interleucina
/
Linfócitos T CD8-Positivos
Limite:
Animals
Idioma:
En
Revista:
Int Immunol
Assunto da revista:
ALERGIA E IMUNOLOGIA
Ano de publicação:
1994
Tipo de documento:
Article
País de afiliação:
Japão