FKBP12 is the only FK506 binding protein mediating T-cell inhibition by the immunosuppressant FK506.
Transplantation
; 73(11): 1835-8, 2002 Jun 15.
Article
en En
| MEDLINE
| ID: mdl-12085010
ABSTRACT
BACKGROUND:
FK506-binding proteins (FKBP) are immunophilins that interact with the immunosuppressive drugs FK506 and rapamycin. Several FKBP family members such as FKBP12, FKBP12.6, and FKBP51 are expressed in T cells. It has been speculated that these FKBPs are possibly redundant in the immunosuppressant-induced T-cell inactivation. To determine the pharmacological relevance of multiple FKBP members in the immunosuppressant-induced T-cell inactivation, we have investigated the physiological responses of FKBP12-deficient and FKBP12.6-deficient mutant T cells to the immunosuppressive agent FK506.METHODS:
FKBP12-deficient and FKBP12.6-deficient T cells were isolated from genetically engineered FKBP12-deficient and FKBP12.6-deficient mice, respectively. T-cell growth inhibitory assay was used to assess their responses to immunosuppressant FK506 treatments.RESULTS:
We found that growth inhibition induced by FK506 is abolished in FKBP12-deficient cells but not in FKBP12.6-deficient cells.CONCLUSIONS:
FKBP12 is the only FKBP family member that plays a key role in immunosuppressant-mediated immunosuppression.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Linfocitos T
/
Tacrolimus
/
Proteína 1A de Unión a Tacrolimus
/
Inmunosupresores
Límite:
Animals
Idioma:
En
Revista:
Transplantation
Año:
2002
Tipo del documento:
Article
País de afiliación:
Estados Unidos