Immediate Effects of Dasatinib on the Migration and Redistribution of Naïve and Memory Lymphocytes Associated With Lymphocytosis in Chronic Myeloid Leukemia Patients.

Dasatinib is a dual SRC/ABL tyrosine kinase inhibitor used to treat chronic myeloid leukemia (CML) that is known to have unique immunomodulatory effects. In particular, dasatinib intake typically causes lymphocytosis, which has been linked to better clinical response. Since the underlying mechanisms are unknown and SRC family kinases are involved in many cell motility processes, we hypothesized that the movement and migration of lymphocytes is modulated by dasatinib.

Frequency of ABL gene mutations in chronic myeloid leukemia patients resistant to imatinib and results of treatment switch to second-generation tyrosine kinase inhibitors.

Background And Objectives: Tyrosine kinase inhibitors (TKI) have improved the management of patients with chronic myeloid leukemia (CML). However, a significant proportion of patients do not achieve the optimal response or are resistant to TKI. ABL kinase domain mutations have been extensively implicated in the pathogenesis of TKI resistance.

Polyethylene glycol interferon-alpha2b alone or in combination with low-dose Ara-C in patients newly diagnosed with chronic myeloid leukemia.

Thirty-five patients newly diagnosed with chronic myeloid leukemia received pegylated interferon alpha-2b (PEG-IFN) alone or combined with intermittent Ara-C for a median of 6.5 months (range: 1.4-19.

Novel dic(16;18)(q11;p11) in two cases of Philadelphia chromosome positive acute B-cell lymphoblastic leukemia.

We report two adult patients with Philadelphia chromosome positive (Ph+) B-cell acute lymphoblastic leukemia (ALL) who presented an additional dic(16;18)(q11;p11) that, to the best of our knowledge, has never been previously reported. Fluorescence in situ hybridization analysis confirmed the translocation and showed it to be dicentric. Both patients were treated for the ALL, but showed refractory disease and died despite aggressive treatment.

The post-transplant cytogenetic response to interferon is a major determinant of survival after autologous stem cell transplantation for chronic myeloid leukaemia in chronic phase.

We have analysed the outcome of 581 autologous stem cell transplants (SCT) for chronic myeloid leukaemia (CML) in first chronic phase reported to the European Group for Blood and Marrow Transplantation between 1983 and 1998. Out off 207 patients evaluable for cytogenetics within 6 months of SCT, 36 patients (17%) were in complete cytogenetic remission (CCR), 34 (16%) in major remission (MCR), 74 (36%) in minor remission (mCR) and 63 (31%) had no cytogenetic response (NR). Interferon (IFN) was given post SCT to 267 patients.