期刊
ACTA HAEMATOLOGICA
卷 117, 期 3, 页码 168-176出版社
KARGER
DOI: 10.1159/000097465
关键词
everolimus; erythroid differentiation; foetal haemoglobin; gamma-globin; rapamycin analogues; beta-thalassaemia
类别
We studied the effects of everolimus on the erythroid differentiation of human leukaemic K562 cells and on the cultures of erythroid progenitors derived from the peripheral blood of beta-thalassaemia patients. A quantitative real-time reverse-transcription polymerase chain reaction assay was employed for the quantification of the accumulation of globin mRNAs. The results obtained demonstrate that everolimus is a potent inducer of the erythroid differentiation of K562 cells. Erythroid induction is associated with an increase in alpha- and gamma-globin mRNAs. In erythroid precursor cells from 4 beta-thalassaemia patients, everolimus stimulated a preferential increase (ranging from 1.8- to 7.2- fold) in gamma-globin mRNA. Only minor effects were observed on the expression of alpha-globin genes. These results, in our opinion, are of interest as this compound is already employed in clinical trials as an anti-rejection agent following kidney transplantation. These data suggest that everolimus warrants further evaluation as a potential therapeutic drug in the treatment of beta-thalassaemia. Copyright (c) 2007 S. Karger AG, Basel.
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