PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17255789-5 2007 Furthermore, lenalidomide induces a direct cytotoxic effect against 5q- clones in leukemia cell lines and enhances ligand-induced erythropoietin receptor signaling in erythroid progenitors. Lenalidomide 13-25 erythropoietin Homo sapiens 130-144