title: Relationship between expression of matrix metalloproteinase-2 and matrix metalloproteinase-9 and invasion ability of cervical cancer cells.
abstract: Constitutive overexpression of matrix metalloproteinases (MMPs) is frequently observed in malignant tumors. MMPs are a family of zinc endopeptidases consisting of at least 20 different members. In particular, MMP-2 and MMP-9 are reported to be closely associated with invasion and metastasis in several cancers. We investigated whether expression of MMP-2 and MMP-9 is associated with invasion ability of seven cervical cancer cells by administration of o-phenanthroline as MMP inhibitor. In two cell lines, Siha and Caski, MMP-2 mRNA and protein were expressed at high levels. After treatment with o-phenanthroline, the rate of invasion in these two cell lines was significantly decreased. In contrast, in the other two cell lines, HT-3 and Caski, high levels of MMP-9 mRNA and protein were expressed but there was no decrease in the rate of invasion in these cells after treatment with o-phenanthroline. The data suggest that expression level of MMP-2 mRNA may regulate with invasion ability of cervical cancer.
authors.affiliation: Department of Gynecology and Obstetrics, Asahikawa medical college, Asahikawa 078-8510, Japan. ikumin@asahikawa-med.ac.jp
authors.forename: Yasuhito
authors.initials: Y
authors.lastname: Kato
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Yamashita
authors.forename: Mutsuo
authors.initials: M
authors.lastname: Ishikawa
mesh_terms: D005260:Female; D006801:Humans; D020778:Matrix Metalloproteinase 2 / Q000096:biosynthesis*; D020780:Matrix Metalloproteinase 9 / Q000096:biosynthesis*; D009361:Neoplasm Invasiveness; D010618:Phenanthrolines / Q000494:pharmacology; D011480:Protease Inhibitors / Q000494:pharmacology; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D014407:Tumor Cells, Cultured; D002583:Uterine Cervical Neoplasms / Q000201:enzymology* / Q000473:pathology*
chemical_list: D010618:Phenanthrolines; D011480:Protease Inhibitors; D012333:RNA, Messenger; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9; C025205:1,10-phenanthroline