Erythropoietic activity of tissue homogenates.

Proc Soc Exp Biol Med

Published: December 1961

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http://dx.doi.org/10.3181/00379727-108-27070DOI Listing

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Aplastic Anemia (AA) is one of the life-threatening bone marrow failure syndromes. One of the main pathologies of AA is reduced erythropoietic activity evidenced by decreased soluble transferrin receptor (sTfR) levels which results in minimal iron utilization and accumulation of iron in tissues in the form of ferritin. This study aimed to measure serum level of sTfR in adult AA patients and correlate it with the severity of the disease and the response to treatment.

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Activation of the melanocortin 1 receptor (MC1R) mediates melanogenesis in melanocytes, anti-inflammatory effects in inflammatory cells, and antifibrotic effects in fibroblasts. Thus, MC1R agonists are expected to be beneficial for treating skin, autoimmune, inflammatory, and fibrotic diseases. Afamelanotide, an α-melanocyte-stimulating hormone (α-MSH) analogue MC1R agonist, is used clinically for treating erythropoietic protoporphyria (EPP) as a subcutaneous implant formulation.

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Reduced GATA1 levels are associated with ineffective erythropoiesis in sickle cell anemia.

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Ineffective erythropoiesis (IE) is defined as the abnormal differentiation and excessive destruction of erythroblasts in the marrow, accompanied by an expanded progenitor compartment and relative reduction in the production of reticulocytes. It is a defining feature of many types of anemia, including beta-thalassemia. GATA1 is an essential transcription factor for erythroid differentiation, known to be implicated in hematological conditions presenting with IE, including beta-thalassemia and congenital dyserythropoietic anemia.

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