PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9184073-6 1997 Kinetic studies indicated that fibronectin was rapidly secreted as an intact molecule and that proteolysis started within minutes and proceeded for at least 1 h. If cells were removed after 5 min TPA treatment, no further proteolysis of the secreted fibronectin was observed, indicating participation of cell-bound proteinases. Tetradecanoylphorbol Acetate 196-199 fibronectin 1 Homo sapiens 31-42