PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16894343-3 2006 EXPERIMENTAL APPROACH: We tested in vitro the potential of rapamycin to inhibit endothelial cell sprouting using the aortic ring assay and we further studied its effect on the expression of proliferating cell nuclear antigen (PCNA), apoptotic cell death-associated activated caspase-3 and vascular endothelial growth factor (VEGF) in cultured endometrial tissue fragments. Sirolimus 59-68 proliferating cell nuclear antigen Mesocricetus auratus 226-230