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Drug resistance is a challenge in treatment of acute leukemia. To investigate novel protein changes involved in resistance, protein expression profiles between leukemia cell line HL-60 and adriamycin-resistant HL-60 (HL-60/ADR) were compared based on a proteomic approach-2D-DIGE followed by MALDI-TOF/MS. 13 protein spots were identified as up-regulated and 3 down-regulated in HL-60/ADR. Nucleophosmin/B23 (NPM B23) and nucleolin C23 (C23) were selected and verified by western blot, which showed an obvious up-regulation in leukemia cells, especially in 3 resistant leukemia cell lines and in relapsed/refractory patients. To a conclusion, B23 and C23 may be involved in drug resistance and be useful in assessing the prognosis of leukemia.
Pubmed ID: 21310483 RIS Download
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THIS RESOURCE IS NO LONGER IN SERVICE, documented August 24, 2016. A software which is used with gel electrophoresis analysis and is used with the Ettan DIGE system. This system allows the option of reference to the internal standard for each spot, which ultimately eliminates gel-to-gel variation, and gives quantitation. This gel comparison method introduces nearly zero statistical error.
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