PMID- 12739032 OWN - NLM STAT- MEDLINE DCOM- 20040504 LR - 20181113 IS - 0937-4477 (Print) IS - 0937-4477 (Linking) VI - 260 IP - 9 DP - 2003 Oct TI - Expression of collagenase-1 (MMP-1), collagenase-3 (MMP-13) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) in laryngeal squamous cell carcinomas. PG - 494-7 AB - Matrix metalloproteinases (MMPs) that have a proteolytic activity against the components of extracellular matrix (ECM) play an important role in the invasive and metastatic spread of tumors. The role of MMPs and tissue inhibitors of MMPs (TIMPs) in laryngeal squamous cell carcinoma (LSCC) has not been elucidated sufficiently. The aim of the present study was to evaluate the correlation between the expression of collagenase-1 (MMP-1), collagenase-3 (MMP-13) and TIMP-1, as well as the clinicopathological features of LSCCs. The expression of collagenases and TIMP-1 was examined immunohistochemically in 50 cases of surgically obtained specimens of primary LSCCs. Analyses indicated that LSCC cells as well as stromal cells expressed MMP-1, MMP-13 and TIMP-1 immunostaining. Overexpression of TIMP-1 occurred more frequently in non-metastasizing cases (P=0.009). TIMP-1 and MMP-1 staining correlated significantly with the histologic type of LSCC. The keratinizing type of carcinomas exhibited higher TIMP-1 protein expression than the nonkeratinizing variety (P=0.01). TIMP-1 staining was associated with the grade of differentiation, since it was found predominantly in well and moderately differentiated carcinomas (P=0.04). The findings confirm that expression of analyzed MMPs and TIMP-1 is characteristic of LSCC and that these enzymes contribute to the progression of tumors. TIMP-1 upregulation might exhibit lower metastatic potential in LSCCs and is linked rather with an early stage of tumor progression. It seems also that TIMP-1 expression is dependent on the grade of differentiation. FAU - Krecicki, Tomasz AU - Krecicki T AD - Department of Otolaryngology, Wroclaw Medical University, Chalubinskiego Street 2, 51-268 Wroclaw, Poland. krecicki@orl.am.wroc.pl FAU - Fraczek, Marcin AU - Fraczek M FAU - Jelen, Michal AU - Jelen M FAU - Podhorska, Marzena AU - Podhorska M FAU - Szkudlarek, Teresa AU - Szkudlarek T FAU - Zatonski, Tomasz AU - Zatonski T LA - eng PT - Journal Article DEP - 20030509 PL - Germany TA - Eur Arch Otorhinolaryngol JT - European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery JID - 9002937 RN - 0 (Tissue Inhibitor of Metalloproteinase-1) RN - 9007-34-5 (Collagen) RN - EC 3.4.24.- (Collagenases) RN - EC 3.4.24.- (MMP13 protein, human) RN - EC 3.4.24.- (Matrix Metalloproteinase 13) RN - EC 3.4.24.- (collagenase 1) SB - IM MH - Adult MH - Aged MH - Carcinoma, Squamous Cell/*enzymology/genetics/metabolism MH - Collagen/metabolism MH - Collagenases/genetics/*metabolism MH - Female MH - Gene Expression Regulation, Enzymologic MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Immunohistochemistry MH - Laryngeal Neoplasms/*enzymology/genetics/metabolism MH - Male MH - Matrix Metalloproteinase 13 MH - Middle Aged MH - Tissue Inhibitor of Metalloproteinase-1/genetics/*metabolism EDAT- 2003/05/10 05:00 MHDA- 2004/05/05 05:00 CRDT- 2003/05/10 05:00 PHST- 2002/10/21 00:00 [received] PHST- 2003/03/26 00:00 [accepted] PHST- 2003/05/10 05:00 [pubmed] PHST- 2004/05/05 05:00 [medline] PHST- 2003/05/10 05:00 [entrez] AID - 10.1007/s00405-003-0610-2 [doi] PST - ppublish SO - Eur Arch Otorhinolaryngol. 2003 Oct;260(9):494-7. doi: 10.1007/s00405-003-0610-2. Epub 2003 May 9.