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  • Title: Activin Receptor II Ligand Traps and Their Therapeutic Potential in Myelodysplastic Syndromes with Ring Sideroblasts.
    Author: Mies A, Hermine O, Platzbecker U.
    Journal: Curr Hematol Malig Rep; 2016 Dec; 11(6):416-424. PubMed ID: 27595736.
    Abstract:
    Distinct subtypes of lower risk myelodysplastic syndromes display ring sideroblasts in the bone marrow, i. e., erythroid progenitors characterized by excessive iron deposited in the mitochondria. This morphological feature is frequently associated with somatic mutations in components of the splicing machinery that constitutes the underlying molecular principle of the disease. Conventional treatment regimen with erythropoiesis-stimulating agents often fails to induce sustained erythroid improvement in these patients that harbor defects in late-stage erythroblasts downstream of erythropoietin action. In the present review, we will discuss activin receptor ligand traps as novel therapeutic strategies particularly for sideroblastic subgroups of myelodysplastic syndromes that were recently shown to alleviate anemia by specifically inhibiting aberrant TGF-β signaling and thereby promoting erythroid differentiation.
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