title: Matrix Metalloproteinases (MMP-2 and MMP-9) and cyclooxygenase-2 (COX-2) expressions in vocal fold polyps.
abstract: The objective of this study was to investigate the roles of matrix metalloproteinases (MMP-2, MMP-9) and cyclooxygenase-2 (COX-2) in the pathogenesis of vocal fold polyps (VFPs). In this study, 20 VFPs and 8 normal vocal fold (VF) specimens were obtained from subjects undergoing surgery. Staining intensities were semiquantitatively assessed and statistically analyzed. Significant increases were observed in the expressions of MMP-2, MMP-9, and COX-2 in stromal spindle cells (P=0.00) and vascular wall (P=0.04, P=0.00, P=0.00) of VFPs compared with normal VFs. MMP-2 expression in surface epithelium basal cells (P=0.00) of VFPs showed enhancement compared with normal vocal folds, whereas MMP-9 and COX-2 expressions showed no significant differences. Our study showed that gelatinases and COX-2 may play a role in the development of VFPs. This is the first study to document the expression of gelatinases and COX-2 in VFPs.
authors.affiliation: Department of Pathology, Suleyman Demirel University School of Medicine, Isparta, Turkey. nerminkarahan@hotmail.com
authors.forename: Nermin
authors.initials: N
authors.lastname: Karahan
authors.forename: Sirin
authors.initials: S
authors.lastname: Baspinar
authors.forename: Murat
authors.initials: M
authors.lastname: Yariktas
authors.forename: Nilgun
authors.initials: N
authors.lastname: Kapucuoglu
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D051546:Cyclooxygenase 2 / Q000378:metabolism*; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000201:enzymology*; D008297:Male; D020778:Matrix Metalloproteinase 2 / Q000378:metabolism*; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism*; D008875:Middle Aged; D011127:Polyps / Q000201:enzymology*; D014827:Vocal Cords / Q000201:enzymology
chemical_list: D051546:Cyclooxygenase 2; C496540:PTGS2 protein, human; C522361:MMP2 protein, human; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9