title: Induction and stimulation of 92-kDa gelatinase/type IV collagenase production in osteosarcoma and fibrosarcoma cell lines by tumor necrosis factor alpha.
abstract: Production of a 92-kDa gelatinase/type IV collagenase and tissue inhibitor of metalloproteinases (TIMP) was investigated with human sarcoma cell lines. Among the cytokines and growth factors examined, only human recombinant tumor necrosis factor alpha (TNF alpha) induced and stimulated the proteinase with concomitant increase in TIMP expression, but matrix metalloproteinase 2 (72-kDa gelatinase/type IV collagenase) expression was unchanged. These data suggest that gene expression of the two metalloproteinases is regulated in a different fashion and TNF alpha may be important to allow cancer cells to be more invasive and metastatic.
authors.affiliation: Department of Pathology, Kanazawa University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Okada
authors.forename: H
authors.initials: H
authors.lastname: Tsuchiya
authors.forename: H
authors.initials: H
authors.lastname: Shimizu
authors.forename: K
authors.initials: K
authors.lastname: Tomita
authors.forename: I
authors.initials: I
authors.lastname: Nakanishi
authors.forename: H
authors.initials: H
authors.lastname: Sato
authors.forename: M
authors.initials: M
authors.lastname: Seiki
authors.forename: K
authors.initials: K
authors.lastname: Yamashita
authors.forename: T
authors.initials: T
authors.lastname: Hayakawa
mesh_terms: D002460:Cell Line; D004790:Enzyme Induction; D005354:Fibrosarcoma / Q000201:enzymology*; D018093:Gelatinases; D006801:Humans; D007527:Isoenzymes / Q000096:biosynthesis* / Q000235:genetics / Q000302:isolation & purification; D007700:Kinetics; D003012:Microbial Collagenase / Q000096:biosynthesis* / Q000235:genetics / Q000302:isolation & purification; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D012516:Osteosarcoma / Q000201:enzymology*; D010434:Pepsin A / Q000096:biosynthesis* / Q000235:genetics / Q000302:isolation & purification; D012334:RNA, Neoplasm / Q000235:genetics / Q000302:isolation & purification; D011994:Recombinant Proteins / Q000494:pharmacology; D014407:Tumor Cells, Cultured / Q000187:drug effects / Q000201:enzymology; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology*
chemical_list: D007527:Isoenzymes; D012334:RNA, Neoplasm; D011994:Recombinant Proteins; D014409:Tumor Necrosis Factor-alpha; D010434:Pepsin A; D018093:Gelatinases; D003012:Microbial Collagenase