title: Expression of matrix metalloproteinases-2, -8, -13, -26, and tissue inhibitors of metalloproteinase-1 in human osteosarcoma.
abstract: Osteosarcoma (OS) is among most common malignant tumour of bone. Matrix metalloproteinases (MMPs) are predominantly associated with poor prognosis of several cancers, although some of them, like MMP-8, seem to have a protective role in some cancers. We analyzed the distribution patterns of MMP-2, -8, -13, -26, and tissue inhibitor of matrix metalloproteinase (TIMP)-1 in 25 OS patients. MMP-2, -8, -13, -26 and TIMP-1 were mostly detected in sarcoma cells. Response to chemotherapy affected the amount of MMP-2, -8, and -13 in resection sections when compared to biopsies: patients with excellent or good response had less positivity to MMP-2 in chemotherapy samples than those with moderate or poor response. We conclude that MMP-2, -8, -13, -26, and TIMP-1 are expressed in OS tissue, and all, except protective MMP-8, were also found in metastases indicating that MMPs and TIMP-1 can participate in the OS progression.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Hospital of Oulu, Finland. jarkko.korpi@oulu.fi
authors.forename: Jarkko T
authors.initials: JT
authors.lastname: Korpi
authors.forename: Jaana
authors.initials: J
authors.lastname: Hagström
authors.forename: Niko
authors.initials: N
authors.lastname: Lehtonen
authors.forename: Jyrki
authors.initials: J
authors.lastname: Parkkinen
authors.forename: Timo
authors.initials: T
authors.lastname: Sorsa
authors.forename: Tuula
authors.initials: T
authors.lastname: Salo
authors.forename: Minna
authors.initials: M
authors.lastname: Laitinen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000627:therapeutic use; D001859:Bone Neoplasms / Q000188:drug therapy / Q000378:metabolism* / Q000473:pathology; D002648:Child; D018450:Disease Progression; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D020782:Matrix Metalloproteinases / Q000096:biosynthesis*; D008875:Middle Aged; D012516:Osteosarcoma / Q000188:drug therapy / Q000378:metabolism* / Q000473:pathology; D011379:Prognosis; D016019:Survival Analysis; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000096:biosynthesis*; D055815:Young Adult
chemical_list: D000970:Antineoplastic Agents; D019715:Tissue Inhibitor of Metalloproteinase-1; D020782:Matrix Metalloproteinases