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Quantitative PCR was performed on an ABI Prism 7500 (Applied Biosystems) using SYBR Green Master Mix (Applied Biosystems) and standard cycling conditions. Following 40 cycles, the products were heated from 60 to 95��C over 20?min to allow melting curve analysis to be done. This allowed the specificity of the products to be determined (single melting peak) and confirmed the absence of primer-dimers. To enable the levels of transcripts to be quantified, standard curves were generated using serial dilutions of cDNA from KG1a. The housekeeping gene ��2-microglobulin (B2M) was used to standardize the samples https://en.wikipedia.org/wiki/Chlormezanone and the relative expression level of target genes was therefore calculated as the ratio between the level of target gene and the level of B2M housekeeping gene. The sequences of the primers used to quantify B2M, BCL2 and BCL2L1 have been published previously (Pallisgaard et?al, 1999; Olie et?al, 2002; Pattyn et?al, 2003). Primers for MCL1 (QT00094122), XIAP (QT00042854) and BAX (QT00031192) were purchased from Qiagen. Negative controls (no template) were included in each experiment and all reactions were run in triplicate. To determine effects of TG02 on RP2S2 and downstream molecules, treated and untreated cells were fixed and permeabilized using the Leucoperm kit (AbD Serotec) and were incubated with antibodies to RP2S2, MCL1, XIAP or active BAX, then with a FITC conjugated http://www.selleckchem.com/products/Nolvadex.html second layer; or with directly conjugated BCL2-FITC or Bcl-xL-Alexa 488 (for BCL2L1). For each specific antibody, the appropriate isotype, fluorochrome and concentration-matched control was used. http://www.selleckchem.com/products/Fludarabine(Fludara).html Cells were counterstained with CD34-PerCP and CD38-APC. To determine effects of TG02 on the STAT5 signalling pathways, cells were incubated under niche like conditions for 60?min and with drugs for a further 60?min, then fixed with paraformaldehyde and methanol (Pallis et?al, 2003). Phosphorylated signalling proteins were measured by flow cytometry using PE-conjugated STAT5 (pY694) or STAT3 (pY705) and Alexa 488-conjugated ERK1/2 (pT202/Y2) or AKT (pS473). For each specific antibody, the appropriate isotype, fluorochrome and concentration-matched control was used. Cells were counterstained with CD34-PerCP and CD38-APC. All CD34+CD38? subsets studied were phenotyped initially and shown to be CD123+. Statistics were carried out using spss version 16 software (Chicago, IL, USA). Univariate analysis of variance was used for analysis of cell lines. Where patient data was seen to be non-parametrically distributed it was analysed accordingly, i.e with Wilcoxon signed rank tests or Mann Whitney analysis. P values?