title: Expression of MMPs is dependent on the activity of mitogen-activated protein kinase in chondrosarcoma.
abstract: Matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) serve an important role in chondrosarcoma. The present study investigated whether the expression of MMPs was dependent on the activity of mitogen-activated protein kinase (MAPK) in chondrosarcoma. Surgical pathological specimens were collected to detect MMP-1, MMP-13, TIMP-1, type II collagen and phosphorylated MAPK levels in normal cartilage, enchondroma and chondrosarcoma tissues. The expression of MMP‑1, MMP‑13, TIMP‑1 and type II collagen was investigated utilizing MAPK inhibitors in chondrosarcoma cells. It was noted that the expression levels of MMP‑1, MMP‑13 and TIMP‑1 were increased in chondrosarcoma with the activity of MAPK. After chondrosarcoma cells were pretreated with MAPK inhibitors, the levels of MMP‑1, MMP‑13 and TIMP‑1 were inhibited. Furthermore, MMP‑1 and MMP‑13 are essential in regulating the degradation of type II collagen and decomposing cartilage matrix major. The high expression levels of MMP‑1 and MMP‑13 in chondrosarcoma expedite the invasion by chondrosarcoma cells and their expression can be depressed by MAPK inhibitors.
authors.affiliation: Department of Pathology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Min
authors.initials: M
authors.lastname: Yao
authors.affiliation: Department of Pathology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Pathology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Pathology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Xiaomeng
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Pathology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
mesh_terms: D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000378:metabolism / Q000473:pathology*; D001842:Bone and Bones / Q000378:metabolism / Q000473:pathology; D045744:Cell Line, Tumor; D002813:Chondrosarcoma / Q000378:metabolism / Q000473:pathology*; D024043:Collagen Type II / Q000032:analysis / Q000378:metabolism; D004789:Enzyme Activation; D005260:Female; D006801:Humans; D020935:MAP Kinase Signaling System; D008297:Male; D020782:Matrix Metalloproteinases / Q000032:analysis* / Q000378:metabolism; D008875:Middle Aged; D020928:Mitogen-Activated Protein Kinases / Q000032:analysis* / Q000378:metabolism; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000032:analysis / Q000378:metabolism
chemical_list: D024043:Collagen Type II; D019715:Tissue Inhibitor of Metalloproteinase-1; D020928:Mitogen-Activated Protein Kinases; D020782:Matrix Metalloproteinases