Reversal of multidrug resistance in HL-60, MSC and CD34(+) cells from umbilical cord blood by sustained intracellular acidification / 中国实验血液学杂志
Journal of Experimental Hematology
;
(6): 666-670, 2011.
Artigo
em Chinês
| WPRIM
| ID: wpr-313920
ABSTRACT
The aim of this study was to investigate the effect of intracellular acidification on accumulation of rhodamine 123 (rh123) in non-mature cells with none or low expression of multidrug resistance MDR1. The expression of MDR1 mRNA was detected by real-time quantitative RT-PCR. Confocal laser microscopy was used to determine the calibration curve of intracellular acidification (pHi). MTT assay was used to detect the cytotoxicity of intracellular acidification on HL-60, MSC and CD34(+) cells from umbilical cord blood. Flow cytometry was applied to measure the influence of intracellular acidification. The results indicated that the intracellular acidification had no obvious cytotoxicity on HL-60, MSC and CD34(+) cells. The acidification resulted in the increased rhodamine 123 accumulation in HL-60, MSC and CD34(+) cells without P-gp activity. Moreover, the more primitive cells, the less accumulation of intracellular Rh123 were observed. It is concluded that the intracellular acidification can reverse the MDR of HL-60, MSC and CD34(+) cells.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Células da Medula Óssea
/
Fenômenos Fisiológicos Celulares
/
Membro 1 da Subfamília B de Cassetes de Ligação de ATP
/
Resistência a Múltiplos Medicamentos
/
Células HL-60
/
Resistencia a Medicamentos Antineoplásicos
/
Antígenos CD34
/
Biologia Celular
/
Sangue Fetal
/
Células-Tronco Mesenquimais
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Experimental Hematology
Ano de publicação:
2011
Tipo de documento:
Artigo
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