Production of red blood cells and platelets from stem cells

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United States of America Patent

PATENT NO 9074186
SERIAL NO

13828357

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Abstract

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This disclosure provides methods of making a megakaryocyte-erythroid progenitor cell (MEP), comprising differentiating a stem cell into a MEP in culture in the presence of an aryl hydrocarbon receptor (AhR) agonist. In some embodiments the stem cell is a pluripotent stem cell. In some embodiments the MEP co-expresses CD41 and CD235. In some embodiments the number of MEPs produced in the culture increases exponentially. Methods of making a red blood cell (RBC) by culturing a MEP in the presence of an AhR agonist are also provided. Methods of making a megakaryocyte and/or a platelet, comprising culturing a MEP in the presence of an AhR modulator are also provided. In some embodiments the AhR modulator is an AhR antagonist. This disclosure also provides compositions comprising at least 1 million MEPs per ml and compositions in which at least 50% of the cells are MEPs.

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Patent Owner(s)

Patent OwnerAddress
TRUSTEES OF BOSTON UNIVERSITYONE SILBER WAY BOSTON MA 02215

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Murphy, George J Boston, US 9 56
Rozelle, Sarah S Jamaica Plain, US 6 56
Sherr, David H West Roxbury, US 10 60
Smith, Brenden W Warwick, US 9 60

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