Reflections on the European union Eurythron network meeting "molecular control of erythropoiesis," September 22-23, 2005, Istituto Superiore di Sanità, Rome, Italy

Red blood cells (RBCs) mediate oxygen transport throughout the body, a function that is essential for life. RBCs are continuously produced via a process called erythropoiesis. Anemias (insufficient numbers of functional RBCs), caused by failure of erythropoiesis, are a major cause of disease worldwide. Hereditary anemias constitute the most common human genetic disorders; they have no effective cure yet. The European research training network Eurythron follows a multidisciplinary approach to clarify the important molecular mechanisms in normal and pathological erythropoiesis, with a view to develop novel therapies to cure the anemias. The aim is to generate a comprehensive molecular description of mechanisms governing specification of hematopoietic stem cells in embryogenesis, lineage commitment, differentiation, and postmitotic maturation of RBCs. We report on the Eurythron meeting in Rome, in which novel approaches in stem cell and erythroid cell biology, including in vitro expansion of primary cells, biochemistry of receptor/signal transduction complexes and transcription factors, and (epi)genetics, were discussed.

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