[Determination of gamma-globin induction levels by different concentrations of hydroxyurea in K 562 cell lines for beta thalassemia treatment
Journal of Medical Science-Islamic Azad University of Mashhad. 2009; 19 (3): 147-153
in Persian
| IMEMR
| ID: emr-137012
ABSTRACT
Hydroxyurea [HU] is currently used for beta thalassemia treatment through induction of fetal gamma-globin, In this study, effects of different concentrations of hydroxyurea on induction of gamma-globin gene in K562 cells, and inhibitory effect of siRNA against candidate gene which may be involved in HU mediated gamma-globin induction were assessed. In this eperimantal study, K562 cells were treated by different concentrations of HU [0, 50, 100 and 200 microM]. siRNA against candidate gene in HU mediated gamma-globin gene induction was transfected to K562 cells using lipofectamine 2000. The level of gammal-globin gene induction and inhibition were determined by quantitavie real-time PCR. There were 1.75-, 2.45- and 2.55- fold inductions in gamma-globin gene using 50, 100 and 200 microM HU, respectively. There has been 79.5% down regulation on candidate gene in siRNA transfected K562 cells. This study showed that gamma-globin induction in 100 microM HU is similar to 200 micro M HU treated K562 cells. There was also efficient inhibitory effect on candidate gene which may be involved in HU mediated gamma-globin induction
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Beta-Thalassemia
/
K562 Cells
/
RNA, Small Interfering
/
Gamma-Globins
/
Hydroxyurea
Language:
Persian
Journal:
J. Med. Sci.-Islam. Azad Univ. Mashhad
Year:
2009
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