Composition for promoting hematogenesis containing quercetin 3-O-β-(2″-galloyl)-rhamnopyranoside as active ingredient
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United States of America Patent
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Mar 22, 2016
Grant Date -
Dec 26, 2013
app pub date -
Jan 9, 2012
filing date -
Mar 3, 2011
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Abstract
This invention relates to a composition for promoting hematopoiesis and for treating, preventing or alleviating cytopenia or bone marrow failure comprising quercetin 3-O-β-(2″-galloyl)-rhamnopyranoside (QGR) as active ingredient. The present active compound QGR (i) increases dose dependently the mRNA expression of cytokines involved in hematopoiesis including stem cell factor, granulocyte-macrophage colony stimulating factor and erythropoietin from mouse bone marrow mononuclear cells, (ii) promotes the formation of burst forming unit-erythroid and colony forming unit-fibroblast, (iii) stimulates the generation of cells positive for TER-119, a specific marker of mouse erythroid precursors, (iv) promotes erythropoiesis, leukopoiesis, thrombopoiesis, and hemoglobin production in bone marrow failure mouse model, (v) stimulates the formation of hematopoietic stem/progenitor cells and mesenchymal stem/progenitor cells, (vi) stimulates megakaryocyte formation surrounding the blood system of damaged bone marrow, osteoid formation and bone marrow restoration through a recovery of damaged bone marrow microenvironment. The QGR of the present invention can be used for promoting hematopoiesis and treating cytopenia or bone marrow failure.
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