title: The effect of TGF-beta2 on MMP-2 production and activity in highly metastatic human bladder carcinoma cell line 5637.
abstract: Transforming growth factor-beta (TGF-beta) superfamily regulates matrix metalloproteinases (MMP), which intrinsically regulate various cell behaviors leading to metastasis. We investigated the effect of TGF-beta(2) on MMP-2 regulation in human bladder carcinoma cell line 5637. Zymography, ELISA, and real-time polymerase chain reaction revealed that TGF-beta(2) stimulated MMP-2 production, but the transcription of its gene remained unchanged. Wortmannin could not inhibit MMP-2 secretion and activity and conversely the amount of the protein and its enzymatic activity were increased. These data suggest that TGF-beta(2) increased MMP-2 at the posttranscriptional level and this upregulation was independent of phosphatidylinositol 3-kinase signaling pathway.
authors.affiliation: Ministry of Science, Research and Technology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran.
authors.forename: Ehsan
authors.initials: E
authors.lastname: Dehnavi
authors.forename: Zahra-Soheila
authors.initials: ZS
authors.lastname: Soheili
authors.forename: Shahram
authors.initials: S
authors.lastname: Samiei
authors.forename: Zahra
authors.initials: Z
authors.lastname: Ataei
authors.forename: Hajar
authors.initials: H
authors.lastname: Aryan
mesh_terms: D000730:Androstadienes / Q000494:pharmacology; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D020778:Matrix Metalloproteinase 2 / Q000235:genetics / Q000378:metabolism*; D019869:Phosphatidylinositol 3-Kinases / Q000378:metabolism; D000081082:Phosphoinositide-3 Kinase Inhibitors; D047428:Protein Kinase Inhibitors / Q000494:pharmacology; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D053781:Transforming Growth Factor beta2 / Q000235:genetics / Q000378:metabolism*; D014407:Tumor Cells, Cultured; D001749:Urinary Bladder Neoplasms / Q000188:drug therapy / Q000378:metabolism* / Q000473:pathology; D000077191:Wortmannin
chemical_list: D000730:Androstadienes; D020778:Matrix Metalloproteinase 2; D019869:Phosphatidylinositol 3-Kinases; D000081082:Phosphoinositide-3 Kinase Inhibitors; D047428:Protein Kinase Inhibitors; D012333:RNA, Messenger; D053781:Transforming Growth Factor beta2; D000077191:Wortmannin