PMID- 15195055 OWN - NLM STAT- MEDLINE DCOM- 20040629 LR - 20091119 IS - 0194-5998 (Print) IS - 0194-5998 (Linking) VI - 130 IP - 6 DP - 2004 Jun TI - c-met overexpression in supraglottic laryngeal squamous cell carcinoma and its relation to lymph node metastases. PG - 698-703 AB - BACKGROUND: The c-met oncogene encodes the receptor for the hepatocyte growth factor/scatter factor (HGF/SF), which is known to have the effects of stimulation of cell motility, dissociation of epithelial sheets, invasion of cellular matrix, and induction of angiogenesis. Many studies in solid tumors have indicated a role for c-met and HGF/SF in the progression of the disease. METHODS: The expression of c-met in tissue specimens was studied by immunohistochemical examination in 60 patients with supraglottic laryngeal squamous cell carcinoma. Patients were chosen such that there were 30 with lymph node metastases in the neck and 30 without metastases. TNM staging, differentiation, lymphovascular and perineural invasion, and growth pattern for tumors were also recorded, and their relation to lymph node metastases was analyzed. RESULTS: Overexpression of c-met was observed in 90% of the cases at the primary site and in 83% of the cases with lymph node metastases in the neck. Lymphovascular invasion (P = 0.005) and the N stage (P = 0.001) were found to be related to lymph node metastases, but other variables-c-met overexpression, the T stage, perineural invasion, and growth pattern-were found to have no relation to lymph node metastases in multivariate analysis of the data with linear regression. CONCLUSIONS: c-met overexpression is observed in both the primary site and the neck in supraglottic laryngeal squamous cell carcinoma. We believe that it may have a role in the progression of malignancy, but we were unable to find a definite relation between c-met expression and lymph node metastases. FAU - Yucel, O Taskin AU - Yucel OT AD - ENT Department, Hacettepe University Medical Faculty. tyucel@tr.net FAU - Sungur, Arzu AU - Sungur A FAU - Kaya, Sefa AU - Kaya S LA - eng PT - Journal Article PL - England TA - Otolaryngol Head Neck Surg JT - Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery JID - 8508176 RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) SB - IM MH - Carcinoma, Squamous Cell/*genetics/metabolism/pathology MH - Glottis MH - Humans MH - Hypopharyngeal Neoplasms/*genetics/metabolism/pathology MH - Immunohistochemistry MH - Lymphatic Metastasis MH - Neck MH - Neoplasm Invasiveness MH - Neoplasm Staging MH - Perineum MH - Proto-Oncogene Proteins c-met/*genetics/metabolism MH - Vascular Neoplasms/metabolism/secondary EDAT- 2004/06/15 05:00 MHDA- 2004/06/30 05:00 CRDT- 2004/06/15 05:00 PHST- 2004/06/15 05:00 [pubmed] PHST- 2004/06/30 05:00 [medline] PHST- 2004/06/15 05:00 [entrez] AID - S0194599803021806 [pii] AID - 10.1016/j.otohns.2003.09.031 [doi] PST - ppublish SO - Otolaryngol Head Neck Surg. 2004 Jun;130(6):698-703. doi: 10.1016/j.otohns.2003.09.031.