title: Expression of mRNA for membrane-type 1, 2, and 3 matrix metalloproteinases in human laryngeal cancer.
abstract: OBJECTIVE
  To investigate correlation of expressions of membrane-type 1, 2, and 3 matrix metalloproteinases (MT1, MT2, and MT3-MMP) to the invasion and metastases in laryngeal cancer.
  
  
  METHODS
  Reverse transcription-polymerase chain reaction (RT-PCR) was used to examine the mRNA level of MT1, MT2, and MT3-MMP in 24 patients with laryngeal cancer. The relationships of these three MT-MMP expressions to clinicopathology were analyzed by statistics.
  
  
  RESULTS
  The expressions of MT1, MT2, and MT3-MMP were significantly higher in laryngeal cancer tissues than those in para-tumorous tissues (P < 0.01) and had a close relationship with invasive depth (P < 0.05). But no significantly different expressions of these three MT-MMPs were found in different primary location and different histological grade of laryngeal cancer (P > 0.05). The expression of MT1-MMP was obviously higher in patients with metastatic lymph nodes than that in patients without metastatic lymph nodes (P < 0.05).
  
  
  CONCLUSIONS
  MT1, MT2, and MT3-MMP play an important role in the progression of laryngeal cancer, and MT1-MMP may serve as a reliable marker in estimating invasive and metastatic potency of laryngeal cancer. Suppressing expressions of MT1, MT2, and MT3-MMP early may inhibit the invasion and metastases of laryngeal cancer.
authors.affiliation: Department of Ears, Nose, and Throat, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630. syn2767@sohu.com
authors.forename: Ya-nan
authors.initials: YN
authors.lastname: Sun
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007822:Laryngeal Neoplasms / Q000378:metabolism* / Q000473:pathology; D007830:Larynx / Q000378:metabolism; D008207:Lymphatic Metastasis; D008297:Male; D053513:Matrix Metalloproteinase 16; D053504:Matrix Metalloproteinases, Membrane-Associated; D008666:Metalloendopeptidases / Q000096:biosynthesis* / Q000235:genetics; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D012333:RNA, Messenger / Q000096:biosynthesis
chemical_list: D014408:Biomarkers, Tumor; C507102:MMP16 protein, human; D012333:RNA, Messenger; D053513:Matrix Metalloproteinase 16; D053504:Matrix Metalloproteinases, Membrane-Associated; D008666:Metalloendopeptidases