CD45RA+ and CD45RO+ T cells differ in susceptibility to cyclosporin A mediated inhibition of interleukin-2 production.
Transpl Immunol
; 4(1): 61-3, 1996 Mar.
Article
en En
| MEDLINE
| ID: mdl-8762014
ABSTRACT
Lymphocytes in different states of activation use different intracellular signalling pathways and may therefore differ in their susceptibility to immunosuppressive agents. In this study we examined the proliferation and production of interleukin-2 (IL-2) by unprimed/naive CD4+CD45RA+ T cells and previously activated/memory CD4+CD45RO+ T cells from human peripheral blood when stimulated in vitro in the presence of cyclosporin A (CsA). Further, the dependency of the IL-2 response on calcium (Ca2+) ions was analysed by the addition of the chelating agent EGTA. The CD4+CD45RO+ memory T cells were shown to be less susceptible to CsA and less dependent on the level of Ca+ ions than the naive CD4+CD45RA+ T cells. The subcellular mechanisms involved in this difference and the potential clinical implications are discussed.
Buscar en Google
Banco de datos:
MEDLINE
Asunto principal:
Linfocitos T CD4-Positivos
/
Interleucina-2
/
Ciclosporina
/
Antígenos Comunes de Leucocito
Límite:
Humans
Idioma:
En
Revista:
Transpl Immunol
Asunto de la revista:
ALERGIA E IMUNOLOGIA
/
TRANSPLANTE
Año:
1996
Tipo del documento:
Article
País de afiliación:
Alemania