PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24040340-1 2013 We previously reported that fenretinide (4-HPR) was cytotoxic to acute lymphoblastic leukemia (ALL) cell lines in vitro in association with increased levels of de novo synthesized dihydroceramides, the immediate precursors of ceramides. Fenretinide 28-39 haptoglobin-related protein Homo sapiens 43-46