title: Expression of vascular endothelial growth factor and cyclooxygenase-2 in laryngeal squamous cell carcinoma and its significance.
abstract: In order to study the expressions of vascular endothelial growth factor (VEGF) and cyclooxygenase-2 (COX-2) in human laryngeal squamous cell carcinoma (LSCC) and its significance, the expression of VEGF mRNA and COX-2 mRNA in 62 cases of LSCC and 54 adjacent noncancerous laryngeal tissues and 9 normal human laryngeal mucous tissues was detected by using techniques of semi-quantitative RT-PCR. It was found that the expression level of VEGF and COX-2 mRNA was significantly increased in LSCC as compared with that in the normal human laryngeal mucous tissues (both P < 0.01), and the expression level of VEGF and COX-2 mRNA were significantly increased in stage Ill + IV tissues of LSCC as compared with the stage I + II tissues of LSCC (P < 0.01). There was a high positive correlation between VEGF and COX-2 expression in LSCC (r = 0.756, P < 0.01). These data raise the possibility that VEGF and COX-2 may play key roles in the growth, invasion and metastasis of LSCC.
authors.affiliation: Department of Otolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
authors.forename: Guangli
authors.initials: G
authors.lastname: Chen
authors.forename: Yingpeng
authors.initials: Y
authors.lastname: Liu
authors.forename: Jianting
authors.initials: J
authors.lastname: Wang
authors.forename: Linghui
authors.initials: L
authors.lastname: Luo
authors.forename: Pei
authors.initials: P
authors.lastname: Chen
authors.forename: Juan
authors.initials: J
authors.lastname: Ding
authors.forename: Shusheng
authors.initials: S
authors.lastname: Gong
mesh_terms: D014408:Biomarkers, Tumor; D002294:Carcinoma, Squamous Cell / Q000378:metabolism*; D051546:Cyclooxygenase 2 / Q000096:biosynthesis* / Q000235:genetics; D006801:Humans; D007822:Laryngeal Neoplasms / Q000378:metabolism*; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D042461:Vascular Endothelial Growth Factor A / Q000096:biosynthesis* / Q000235:genetics
chemical_list: D014408:Biomarkers, Tumor; D012333:RNA, Messenger; D042461:Vascular Endothelial Growth Factor A; D051546:Cyclooxygenase 2