cAMP analogue 8-CPT-cAMP inducing differentiation in the M2b subtype of acute myeloid leukemia cell line Kasumi-1 / 中国实验血液学杂志
Journal of Experimental Hematology
;
(6): 44-47, 2008.
Artículo
en Chino
| WPRIM
| ID: wpr-318719
ABSTRACT
This study was aimed to investigate the possible effects of cyclic adenosine monophosphate (cAMP) analogue 8-(4-chlorophenylthio) adenosine 3', 5'-cyclic monophosphate (8-CPT-cAMP) on the M(2b) subtype of acute myeloid leukemia (AML-M(2b)) cells. AML-M(2b) is characterized by the non-random chromosome translocation t (8; 21) (q22; q22), through which AML1 (acute myeloid leukemia 1) gene on chromosome 21 is fused with ETO (eight twenty-one) gene on chromosome 8, coding correspondent AML1-ETO fusion protein, which plays a crucial role in the leukemogenesis of AML-M(2b). The AML-M(2b) cell line Kasumi-1 cells were used as an in vitro model. The influences of 8-CPT-cAMP on the proliferation and differentiation of Kasumi-1 cells were evaluated according to cellular morphology, changes in cell surface antigen and cell cycle, as well as nitroblue-tetrazolium (NBT) assay. Meanwhile, semi-quantity RT-PCR and Western blot assay were used to detect the degradation of AML1-ETO fusion protein in Kasumi-1 cells before and after the treatment. The results showed that 8-CPT-cAMP (200 micromol/L) could significantly inhibit cell growth and induce differentiation of Kasumi-1 cells. However, it must be pointed out that 8-CPT-cAMP-induced differentiation in Kasumi-1 is not a typical terminal differentiation. Furthermore, 8-CPT-cAMP exerted little influence on the expression of AML1-ETO fusion gene and its product in Kasumi-1 cells. In conclusion, the 8-CPT-cAMP induced differentiation in Kasumi-1 cells. This results may provide experimental and theoretical basis for the breakthrough of differentiation-induced therapy extended to another leukemia.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Patología
/
Farmacología
/
Tionucleótidos
/
Células Tumorales Cultivadas
/
Leucemia Mieloide Aguda
/
Proteínas de Fusión Oncogénica
/
Transformación Celular Neoplásica
/
AMP Cíclico
/
Subunidad alfa 2 del Factor de Unión al Sitio Principal
/
Proteína 1 Compañera de Translocación de RUNX1
Tipo de estudio:
Estudio pronóstico
Límite:
Humanos
Idioma:
Chino
Revista:
Journal of Experimental Hematology
Año:
2008
Tipo del documento:
Artículo
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