We report two new cases with the t(6;8)(q27;p12) and FGFR1OP-FGFR1 fusion. Case 1 presented with polycythaemia vera (PV) and evolved over 4 years to a myeloproliferative disorder (MPD) resembling the 8p11 myeloproliferative syndrome (EMS). Case 2 presented with B-cell lymphoblastic leukaemia (B-ALL). These cases illustrate the clinical heterogeneity observed in patients with FGFR1 rearrangement...

We determined mutations and promoter methylation status of NPM1 using pyrosequencing in 199 samples of myeloid neoplasia including myeloproliferative disorders (MPD). The mutations were present in 4% of chronic myelomonocytic leukemia, but not in other MPD or myelodysplastic syndromes. Promoter methylation was rare, and was found in only three samples of MPD.

Our understanding of inflammation's role in the pathogenesis of myeloproliferative neoplasm (MPN) is evolving. The impact of chronic inflammation, a characteristic feature of MPN, likely goes far beyond its role as a driver of constitutional symptoms. An inflammatory response to the neoplastic clone may be responsible for some pathologic aspects of MPN. Moreover, JAK2V617F mutated hematopoietic...

The efficacy of hydroxyurea (HU) in myeloproliferative disorders is well documented. HU controls thrombocytosis both in polycythemia vera (PV) and in essential thrombocythemia (ET), while reducing the risk of thrombosis.1 Despite many anectodal reports, no evaluation of the prevalence and type of side effects of HU exists in large series of patients.

Reporting of myelodysplastic syndromes (MDSs) and chronic myeloproliferative disorders (CMDs) to population-based cancer registries in the United States was initiated in 2001. In this first analysis of data from the North American Association of Central Cancer Registries (NAACCR), encompassing 82% of the US population, we evaluated trends in MDS and CMD incidence, estimated case numbers for the...

OBJECTIVE The Department of Hematology, Zealand University Hospital, Denmark, and the National Institute of Public Health, University of Southern Denmark, created the first nationwide, population-based, and the most comprehensive cross-sectional health-related quality of life (HRQoL) survey of patients with myeloproliferative neoplasms (MPNs). In Denmark, all MPN patients are treated in public ...

The Jak-Stat-Socs pathway is an important component of cytokine receptor signaling. Not surprisingly, perturbation of this pathway is implicated in diseases of hematopoietic and immune origin, including leukemia, lymphoma and immune deficiencies. This review examines the role of a key component of this pathway, Stat5. This has been shown to be activated in a variety of leukemias and myeloprolif...

Individuals with Down syndrome (DS) frequently have hematopoietic abnormalities, including transient myeloproliferative disorder and acute megakaryoblastic leukemia which are often accompanied by acquired GATA1 mutations that produce a truncated protein, GATA1s. The mouse has been used for modeling DS based on the syntenic conservation between human chromosome 21 (Hsa21) and three regions in th...

Diagnostic and therapeutic management of eosinophilia-associated chronic myeloproliferative disorders Andreas Reiter,* David Grimwade,° Nicholas C.P. Cross *III. Medizinische Universitätsklinik, Medizinische Fakultät Mannheim der Universität Heidelberg, Mannheim, Germany; °Department of Medical and Molecular Genetics, Guy’s, King’s and St. Thomas’ School of Medicine, Guy's Campus and Department...

We studied the etiology, diagnosis and natural course of myeloproliferative disease (MPD) in 40 consecutive patients with Budd-Chiari syndrome (BCS). In 38% of the BCS patients with MPD another etiological factor was found. JAK2 mutation was present in 41% of the tested BCS patients. Survival was not significantly affected by the presence of MPD.