title: Expression of MMP-1 in invasive well-differentiated thyroid carcinoma.
abstract: The objective of this study is to examine the expression of matrix metalloproteinase 1 (MMP-1) in invasive well-differentiated thyroid carcinoma (WDTC) and its relation to clinicopathological features. This retrospective case study group included 26 patients with invasive WDTC who were treated at our center between January 1985 and May 2007. Clinical data were collected from the medical files. MMP-1 expression was tested in samples from paraffin-embedded tumor by immunohistochemical staining. MMP-1 expression correlated with laryngotracheal invasion (p = 0.032), multifocality of the tumor (p = 0.044), and presence of regional (p = 0.034) and distant metastases (p = 0.048). In conclusion, the expression of MMP-1 in invasive WDTC is consistent with tumor aggressiveness, manifested by laryngotracheal invasion, multifocality, and regional and distant metastases. MMP-1 expression may serve as a prognostic marker and an indicator for the need for more aggressive surgical treatment.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Rabin Medical Center, Beilinson Campus, Petah Tiqwa, 49100, Israel. avirammi@bezeqint.net
authors.forename: Aviram
authors.initials: A
authors.lastname: Mizrachi
authors.forename: Rumelia
authors.initials: R
authors.lastname: Koren
authors.forename: Tuvia
authors.initials: T
authors.lastname: Hadar
authors.forename: Eitan
authors.initials: E
authors.lastname: Yaniv
authors.forename: Sara
authors.initials: S
authors.lastname: Morgenstern
authors.forename: Jacob
authors.initials: J
authors.lastname: Shvero
mesh_terms: D014408:Biomarkers, Tumor / Q000378:metabolism; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D008207:Lymphatic Metastasis; D008297:Male; D020781:Matrix Metalloproteinase 1 / Q000378:metabolism*; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009362:Neoplasm Metastasis; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate; D013964:Thyroid Neoplasms / Q000378:metabolism* / Q000473:pathology
chemical_list: D014408:Biomarkers, Tumor; D020781:Matrix Metalloproteinase 1