G Saglio

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..In spite of its low incidence, CML remains a paradigmatic model for understanding the pathogenesis and therapeutic options of human leukemias...

..The early detection and the characterization of these mutations may allow timely and appropriate treatment to overcome resistance...

..In the absence of trials comparing novel strategies, the synthesis of emerging data from next-generation agents and modified imatinib-based strategies is likely to be a key area of debate during the next few years...

..We evaluated the efficacy and safety of nilotinib, as compared with imatinib, in patients with newly diagnosed Philadelphia chromosome-positive chronic myeloid leukemia (CML) in the chronic phase...

..Understanding exactly the mechanisms leading to genomic instability of the Ph-positive cells represents therefore the real challenge for the near future...

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..In the current report, the results for patients with CML in blast phase after 2 years of follow-up are reported...

..These data, taken together, may provide a possible explanation for the increased rate of chemosensitivity observed among the NPMc+ patients...

..Both inhibitors and stable expression of SR-IkB are associated with down-modulation of the antiapoptotic protein Bcl-xL, suggesting that the survival pathway activated by Etoposide involves NF-kB-mediated Bcl-xL expression...

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..CONCLUSION: WT1 is a useful molecular marker for risk assessment in MDS patients...

..Our data provide the rational for a new therapeutic approach, which combines Imatinib and the IKK inhibitor PS1145 in CML resistant patients...

..There is an incomplete understanding of the so-called genomic instability that underlies the production of the fusion gene and predisposes the Ph-positive clone to acquire further genetic events leading to advanced-phase disease...

..In this chapter, we describe the method for the quantification of WT1 transcript by real-time polymerase chain reaction...

..In these two patients, involvement of the MLL gene was analyzed by molecular cytogenetic techniques which also allowed a more precise mapping of the breakpoints...

..The objective of this study was to evaluate the ability of the clinically available histone deacetylase (HDAC) inhibitor valproate to enhance the cytotoxicity of the Bcr-Abl inhibitor imatinib in imatinib-resistant cell lines...

..The biological mechanism of action of deferasirox, an effect which is not shared by other iron chelators, is still obscure and requires further investigations...

..This trial was registered at www.clinicaltrials.gov as no. NCT00435955...

..Finally, the identification of myelodysplasia-associated antigens that may be targeted by an immunotherapeutic approach represents a future perspective in tailored therapy for MDS patients...

..We detected the presence of OOF-specific CD8+ T cells in four of four patients studied, and in one case, these T cells exhibited specific cytotoxic activity against both peptide-pulsed targets and autologous primary CML cells...

..This review highlights the in vitro and in vivo results of NF-kB inhibition in myeloid malignancies...

..WT1 helps identify patients at high risk of relapse soon after induction chemotherapy allowing post-induction therapy in high risk patients to be intensified...

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..Our results strengthen the function of hepatic alpha-Tfr2 in hepcidin activation, suggest a role for extrahepatic Tfr2 and indicate that beta-Tfr2 may specifically control spleen iron efflux...

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..The impressive results of TKIs in this model have been overshadowed by the development of clinical resistance...

..Future therapies will attempt to resolve cytopenias in MDS, eliminate malignant clones, and allow differentiation by attacking specific mechanisms of the disease...

..To evaluate the prevalence of iron overload in chronic hepatitis C and its relationship with liver histology...

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..Larger series of patients need to be analyzed to evaluate the clinical relevance of BCL-6 mutations properly...

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..In fact, the use of real-time polymerase chaine reaction (PCR) to quantitatively measure the WT1 transcript amount may be a predictor of patient response to imatinib therapy...

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..Our results indicate that CCM analysis of amplified genomic DNA fragments can be successfully used to search for mutations in large genes whose transcripts are not readily available...

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..The findings of our study, if confirmed, might confer an important predictive value to quantitative real-time PCR determinations of MRD in patients with inv(16) leukemia...

..In the TC2 group, trisomy 11 may probably be considered as a recurrent polisomy of the hyperdiploid status...

..Although more data are needed, these results suggest that the persistence of MRD, as detected by FISH, in stem cell collections, is associated with a poor outcome in AML patients with trisomy 8 undergoing ABMT...

..Our report, along with additional data present in the literature, suggests that rituximab may be an appropriate and safe first-line therapy for HIV-negative, HHV8-positive MCD...

..Several combinations of HGFs have been described to sustain the ex vivo survival and proliferation of these cells disclosing new opportunities in the field of stem cells transplants...

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..We conclude that in CCgRs the degree of MR may vary from 2 to more than 4 logs, and that there is a progressive decrease of transcript level by time. Only 1 of 22 negative cases has had a relapse as yet...

..Any possible additional benefit of the combination with interferon-alpha remains uncertain, due to low patient compliance...

..Taken together, these findings make NPMc+ acute myeloid leukemia a good candidate for inclusion in the upcoming World Health Organization classification...

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..It may therefore potentially be a valuable tool for regular, large-scale testing of patients undergoing Imatinib treatment...

..These results establish a previously unknown link between specific molecular defects that involve alternative splicing of the IKZF1 gene and the resistance to TKIs in Ph+ ALL patients...

..We compared the efficacy of imatinib with that of interferon alfa combined with low-dose cytarabine in newly diagnosed chronic-phase CML...

..Tumor cells may acquire additional molecular alterations that may be associated with histologic progression or with chemo-resistance...

..We previously described a novel type of the chimeric bcr-abl mRNA transcript in a patient with a Philadelphia chromosome positive chronic myeloid leukemia. A similar bcr-abl transcript has also been described by others...

..This supports the need to conduct additional molecular studies, even if cytogenetic studies have revealed t(9;22), because of the prognostic importance of the molecular findings...

..Chronic myelogenous leukemia (CML) is caused by the BCR-ABL tyrosine kinase, the product of the Philadelphia chromosome. Imatinib mesylate, formerly STI571, is a selective inhibitor of this kinase...

..Other molecular events involving chromosome 9 were a monoallelic loss of JAK2 in both subclones and an additional loss of P15/P16 in the subclone with the acrocentric marker bearing the extra Ph chromosome...

..Our analysis revealed that insertions generating the 5'RUNX1/3'CBFA2T1 gene showed variable breakpoints; the size of the inserted elements ranged from 2.4 to 44 Mb...

..Imatinib mesylate (IM) has rapidly become the front-line treatment of Philadelphia-positive (Ph-pos) chronic myeloid leukemia, but the number of patients who were treated and are being treated with IM second-line is still substantial...

..Imatinib inhibits this kinase, and in a short-term study was superior to interferon alfa plus cytarabine for newly diagnosed CML in the chronic phase. For 5 years, we followed patients with CML who received imatinib as initial therapy...

..We review current trends in the management of chronic myeloid leukaemia patients undergoing treatment with tyrosine kinase inhibitors...

..Long-term follow-up results continue to improve in terms of rates and durability of the complete cytogenetic response, major or complete molecular response, and progression-free and overall survival...

..We recognize that our recommendations are provisional and will require revision as new evidence emerges...

..The importance of regular monitoring at experienced centers was highlighted...

..0005 and as a 3-log reduction from median baseline value) already at the time of first achieving a CCgR have significantly longer cytogenetic remission durations than those without this magnitude of molecular response (P < 0.05)...

..Association with imatinib caused a significant increase of activity...

..These trials were registered at www.clinicaltrials.gov as #CA180006 and #CA180015...

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..As might be expected, older patients experienced more adverse events, both hematologic and non-hematologic: this worsened compliance did not, however, prevent a long-term outcome similar to that of younger patients...

..No patient achieved complete remission. One patient obtained a hematologic improvement (platelet increase with transfusion independence). Median overall survival was 3 months (0.5-44+). Non-hematologic toxicity was overall mild...

..In conclusion, nilotinib is an effective and well-tolerated treatment in imatinib-resistant and -intolerant CML-AP. This trial is registered at www.clinicaltrials.gov as NCT00384228...

..These cases with FIP1L1-PDGFRalpha rearrangement have been reported to be very sensitive to the tyrosine kinase inhibitor imatinib mesylate...

..Nucleophosmin (NPM), a nucleocytoplasmic shuttling protein with prominent nucleolar localization, regulates the ARF-p53 tumor-suppressor pathway. Translocations involving the NPM gene cause cytoplasmic dislocation of the NPM protein...

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..In all patients but one, resistance to dasatinib was invariably found to be associated with mutations at residue 315 and/or at residue 317...

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..By contrast, the p190 emerged as the only independent prognostic factor favorably affecting the 5-year overall survival and disease-free survival rates (p=0.008 and p=0.02, respectively)...