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  • Title: Angiogenesis in chronic myeloproliferative diseases detected by CD34 expression.
    Author: Panteli K, Zagorianakou N, Bai M, Katsaraki A, Agnantis NJ, Bourantas K.
    Journal: Eur J Haematol; 2004 Jun; 72(6):410-5. PubMed ID: 15128419.
    Abstract:
    Increased bone marrow angiogenesis estimated as bone marrow microvessel density (MVD), or as serum angiogenic factor levels and/or immunohistochemical expression of these factors in bone marrow biopsy has been demonstrated in a variety of hematological disorders including chronic myeloproliferative diseases (MPDs). The aim of this study was to investigate the MVD in 25 cases of myelofibrosis with myeloid metaplasia (MMM). MVD was estimated by CD34 immunohistochemical expression in bone marrow biopsies. A control group of 27 patients without bone marrow disease, eight cases of polycythemia vera (PV), 41 cases of essential thrombocythemia (ET) and nine cases of chronic myeloid leukemia (CML) were also studied. Moreover, in cases with MMM, MVD was correlated with clinical, laboratory, histological parameters and the outcome of the patients. Our study confirmed a significantly higher degree of angiogenesis in MMM, PV, ET and CML compared with controls (P < 0.001, P = 0.0007, P < 0.001 and P = 0.0008, respectively). Angiogenesis was higher in MMM than PV, ET and CML cases (P < 0.001, P < 0.001 and P = 0.008). Increased angiogenesis was correlated with hypercatabolic symptoms in MMM patients (P = 0.009). No correlation with other clinicopathological parameters or clinical outcome was found. However, definitive conclusions regarding the prognostic value of increased angiogenesis may require additional follow-up and a larger group of patients.
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