title: RT-PCR expression profiling of matrix metalloproteinases and their specific inhibitors in cell lines and fresh biopsies of squamous cell carcinomas of the head and neck.
abstract: The expressions of MMP2, -7, -9, -13 and TIMP1, -2, -3 were examined in biopsies and cell lines of head and neck squamous cell carcinomas (HNSCC) to determine the association between the expression profile and TNM-staging of the primary. The expressions of MMP2, -7, -9, -13 and TIMP1, -2, -3 were analyzed in 30 HNSCC biopsies, 7 HNSCC cell lines and 1 keratinocyte cell line using RT-PCR. Negative correlation was determined between N-status and MMP13-RNA expression [Kendall-tau-b -0.404 (p = 0.016), Spearman-rho -0.448 (p = 0.014)], histological grading [Kendall-tau-b -0.291 (p = 0.049), Spearman-rho -0,333 (p = 0.048)], and MMP7 and TIMP2 expression [Kendall-tau-b -0.318 (p = 0.045); Spearman-rho -0.353 (p = 0.045)]. Positive correlation was determined between M-status and MMP9-RNA expression [Kendall-tau-b 0.341 (p = 0.025), Spearman-rho 0.377 (p = 0.024)] and MMP13 and TIMP2 expression [Kendall-tau-b 0.727 (p = 0.037), Spearman-rho 0.850 (p = 0.016)]. The results point to a role of the tested MMPs and TIMPs in the metastatic spread of HNSCC.
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, Philipps University of Marburg, Germany. duenne@med.uni-marburg.de
authors.forename: A A
authors.initials: AA
authors.lastname: Dünne
authors.forename: R
authors.initials: R
authors.lastname: Mandic
authors.forename: S
authors.initials: S
authors.lastname: Falkenberg
authors.forename: C V
authors.initials: CV
authors.lastname: Dalchow
authors.forename: A M
authors.initials: AM
authors.lastname: Sesterhenn
authors.forename: J A
authors.initials: JA
authors.lastname: Werner
mesh_terms: D000328:Adult; D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000378:metabolism*; D045744:Cell Line, Tumor; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006258:Head and Neck Neoplasms / Q000378:metabolism*; D006801:Humans; D008297:Male; D020782:Matrix Metalloproteinases / Q000096:biosynthesis*; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011379:Prognosis; D012313:RNA / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods*; D019714:Tissue Inhibitor of Metalloproteinases / Q000096:biosynthesis*
chemical_list: D019714:Tissue Inhibitor of Metalloproteinases; D012313:RNA; D020782:Matrix Metalloproteinases