title: Expression of membrane-type 1 matrix metalloproteinase (MT1-MMP) on prostate cancer cell lines.
abstract: Membrane-type metalloproteinase-1 (MT1-MMP) is a transmembrane metalloproteinase, which activates proMMP-2 and expressed on the cell surface in many invasive cancer cells. We investigated the expression of MT1-MMP in prostate cancer cell lines. MT1-MMP protein and mRNA were expressed in PC-3, DU-145 and TSU-pr1 cells (androgen-independent prostate cancer cell lines), but in LNCaP cells (androgen-dependent prostate cancer cell line). MT1-MMP protein was negative and mRNA was low to detect by RT-PCR. Cell lysate of PC-3 cleaved proMMP-2 to the active form. In addition, both hepatocyte growth factor (HGF) and gastrin-releasing peptide (GRP) increased Matrigel invasion and induced the expression of MT1-MMP protein in DU-145 prostate cancer cells. These results suggest that MT1-MMP is indeed the tumor-specific activator of proMMP-2 in androgen-independent prostate cancer cells and plays an important role in the invasive properties of prostate cancer cells.
authors.affiliation: Department of Pathogenic Biochemistry, Institute of Natural Medicine, 930-0194, Toyama, Japan.
authors.forename: O
authors.initials: O
authors.lastname: Nagakawa
authors.forename: K
authors.initials: K
authors.lastname: Murakami
authors.forename: T
authors.initials: T
authors.lastname: Yamaura
authors.forename: Y
authors.initials: Y
authors.lastname: Fujiuchi
authors.forename: J
authors.initials: J
authors.lastname: Murata
authors.forename: H
authors.initials: H
authors.lastname: Fuse
authors.forename: I
authors.initials: I
authors.lastname: Saiki
mesh_terms: D002384:Catalysis; D003094:Collagen / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D004338:Drug Combinations; D004789:Enzyme Activation; D005434:Flow Cytometry; D019886:Gastrin-Releasing Peptide / Q000378:metabolism; D017228:Hepatocyte Growth Factor / Q000378:metabolism; D006801:Humans; D007797:Laminin / Q000378:metabolism; D008297:Male; D020778:Matrix Metalloproteinase 2 / Q000096:biosynthesis; D053504:Matrix Metalloproteinases, Membrane-Associated; D008666:Metalloendopeptidases / Q000378:metabolism*; D009361:Neoplasm Invasiveness; D011471:Prostatic Neoplasms / Q000378:metabolism*; D011498:Protein Precursors / Q000096:biosynthesis; D011509:Proteoglycans / Q000378:metabolism; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D014407:Tumor Cells, Cultured
chemical_list: D004338:Drug Combinations; D007797:Laminin; D011498:Protein Precursors; D011509:Proteoglycans; D012333:RNA, Messenger; C059485:matrigel; D017228:Hepatocyte Growth Factor; D019886:Gastrin-Releasing Peptide; D003094:Collagen; D053504:Matrix Metalloproteinases, Membrane-Associated; D008666:Metalloendopeptidases; D020778:Matrix Metalloproteinase 2