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Page créée avec « Loss of complete hematologic response, CCyR/partial CyR (PCyR) or MMR, developing clonal chromosome abnormalities in Ph+ cells, or new mutations were also considered as fa... »

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Loss of complete hematologic response, CCyR/partial CyR (PCyR) or MMR, developing clonal chromosome abnormalities in Ph+ cells, or new mutations were also considered as failure.20 2. Expression of drug transporters Genomic DNA was obtained [http://en.wikipedia.org/wiki/PDK4 PDK4] from diagnostic bone marrow cryopreserved mononuclear cells with a QIAamp DNA Blood Mini Kit (Qiagen, Valencia, CA, USA). To analyze mRNA expression of OCT-1, ABCG2, and ABCB1, RNA was obtained from at least 1��106 cells with TRIzol Reagent (Invitrogen, Carlsbad, CA, USA). QuantiTect Reverse Transcription Kit (Qiagen) was used for cDNA synthesis. PCR amplification was performed with the following primers: OCT-1, (forward) 5'-CTG AGC TGT ACC CCA CAT TCG-3', (reverse) 5'-CCA ACA CCG CAA ACA AAA TGA-3'22; ABCG2, (forward) 5'-AGA TGG GTT TCC AAG CGT TCA T-3', (reverse) 5'-CCA GTC CCA GTA CGA CTG TGA [http://www.selleckchem.com/products/pifithrin-alpha.html www.selleckchem.com/products/pifithrin-alpha.html] CA-(3)'23; ABCB1, (forward) 5'-AGA CAT GAC CAG GTA TGC CTA T-(3)', (reverse) 5'-AGC CTA TCT CCT GTC GCA TTA-3'22 (GeneWorks Pty. Ltd., Adelaide, SA, Australia). qPCR was performed by use of a Rotor Gene 3000 real-time PCR thermal cycler (Corbett Biosciences, San Francisco, CA, USA) with a Rotor-Gene SYBR Green PCR Kit (Qiagen). mRNA expression of BCR [(forward) 5'-CCT TCG ACG TCA ATA ACA ACG AT-3', (reverse) 5'-CCT GCG ATG GCG TTC AC-3')]22 was used for an assessment of the expression ratio of these three drug transporters. 3. Statistical analysis Fisher's exact test (categorical value) and Mann-Whitney U test (continuous data) were used for between-group comparisons. For comparison of gene expression levels between imatinib-na?ve and imatinib-exposed samples, Wilcoxon signed-rank test was used. Survival was assessed through the use of Kaplan-Meier survival curves and estimates. The log-rank test was used for comparison of survival distributions between groups. p[http://www.selleckchem.com/products/rgfp966.html Selleck RGFP966] treatment duration of imatinib was 26.9 months (range, 12.4-85.4 months). During imatinib treatment, 6 (27.3%) and 3 (13.6%) patients achieved CCyR and MMR, respectively. A total of 13 (59.1%) and 9 (40.9%) patients switched to second-generation TKIs owing to primary and secondary imatinib resistance, respectively. TABLE 1 Patient characteristics (n=22) With salvage therapy with second-generation TKIs, 54.5% and 40.9% of the imatinib-resistant patients had CCyR and MMR. Of the patients with imatinib resistance, 54.

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Angle3oil : Page créée avec « Loss of complete hematologic response, CCyR/partial CyR (PCyR) or MMR, developing clonal chromosome abnormalities in Ph+ cells, or new mutations were also considered as fa... »