PMID- 16265652 OWN - NLM STAT- MEDLINE DCOM- 20060706 LR - 20220408 IS - 1043-3074 (Print) IS - 1043-3074 (Linking) VI - 28 IP - 1 DP - 2006 Jan TI - Metalloproteinases and their inhibitors: influence on tumor invasiveness and metastasis formation in head and neck squamous cell carcinomas. PG - 31-9 AB - BACKGROUND: Matrix metalloproteinases (MMPs) play an important role in tumor invasiveness. This study investigates the expression status of MMPs and tissue inhibitors of metalloproteinases (TIMPs) in head and neck squamous cell carcinomas (HNSCC). METHODS: Of 48 laryngeal squamous cell carcinoma (LSCC) biopsies and 10 HNSCC cell lines, mRNA was isolated, reversely transcribed, and subjected to polymerase chain reaction (PCR) amplifying MMP-1, MMP-2, MMP-9, MMP-10, TIMP-1, and TIMP-2. Silver nitrate-stained gel electrophoresis demonstrated MMP and TIMP expression status. Exemplary immunohistochemistry and zymography confirmed translation and enzyme activity. RESULTS: Densitometric analysis revealed MMP-2 expression and lymph node metastases to be positively and TIMP-1 and TIMP-2 to be negatively correlated with lymph node metastases. TIMP-2 expression and tumor size were negatively correlated. MMP-1, MMP-9, and MMP-10 expression were not correlated to metastasis formation or tumor size. CONCLUSIONS: Our results suggest that MMP-2 expression enhances, whereas TIMP-1 and TIMP-2 both suppress, cancer spread in LSCC. CI - (c) 2005 Wiley Periodicals, Inc. Head Neck 27: XXX-XXX, 2005. FAU - Gorogh, Tibor AU - Gorogh T AD - Department of Otorhinolaryngology, Head and Neck Surgery, University of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 14, 24105 Kiel, Germany. gorogh@hno.uni-kiel.de FAU - Beier, Ulf H AU - Beier UH FAU - Baumken, Jens AU - Baumken J FAU - Meyer, Jens E AU - Meyer JE FAU - Hoffmann, Markus AU - Hoffmann M FAU - Gottschlich, Stefan AU - Gottschlich S FAU - Maune, Steffen AU - Maune S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Head Neck JT - Head & neck JID - 8902541 RN - 0 (DNA Primers) RN - 0 (Matrix Metalloproteinase Inhibitors) RN - 0 (Tissue Inhibitor of Metalloproteinase-1) RN - 127497-59-0 (Tissue Inhibitor of Metalloproteinase-2) RN - EC 3.4.24.- (Matrix Metalloproteinases) SB - IM MH - Carcinoma, Squamous Cell/enzymology/*pathology MH - Cell Line MH - DNA Primers MH - Electrophoresis, Polyacrylamide Gel MH - Female MH - Gene Expression Regulation, Enzymologic MH - Gene Expression Regulation, Neoplastic MH - Head and Neck Neoplasms/enzymology/*pathology MH - Humans MH - Immunohistochemistry MH - Male MH - *Matrix Metalloproteinase Inhibitors MH - Matrix Metalloproteinases/*metabolism MH - Middle Aged MH - Neoplasm Invasiveness MH - Polymerase Chain Reaction MH - Sequence Analysis MH - Tissue Inhibitor of Metalloproteinase-1/genetics/metabolism MH - Tissue Inhibitor of Metalloproteinase-2/genetics/metabolism MH - Tumor Cells, Cultured EDAT- 2005/11/03 09:00 MHDA- 2006/07/11 09:00 CRDT- 2005/11/03 09:00 PHST- 2005/11/03 09:00 [pubmed] PHST- 2006/07/11 09:00 [medline] PHST- 2005/11/03 09:00 [entrez] AID - 10.1002/hed.20298 [doi] PST - ppublish SO - Head Neck. 2006 Jan;28(1):31-9. doi: 10.1002/hed.20298.