REDWOOD CITY, Calif., Feb. 3, 2014 (GLOBE NEWSWIRE) -- OncoMed Pharmaceuticals, Inc. (Nasdaq:OMED), a clinical-stage company developing novel therapeutics that target cancer stem cells (CSCs), or tumor-initiating cells, today announced the issuance of its fourth broad U.S. patent relating to antibodies that target the RSPO-LGR cancer stem cell pathway. The new patent, U.S. Patent No. 8,628,774, covers certain methods of treating cancer with antibodies that bind human leucine-rich repeat-containing G protein-coupled receptor (LGR) proteins and either disrupt the binding of such proteins to their ligands, the R-spondin (RSPO) proteins, or disrupt RSPO activation of LGR signaling. RSPO-LGR pathway patents previously granted to OncoMed include U.S. Patent Nos. 8,158,757, 8,158,758 and 8,540,989.
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