title: [Expression of MDM2 and p27 in hypopharyngeal carcinoma and their clinical significance].
abstract: OBJECTIVE
  To explore the relationship between the expression of MDM2 and p27 in hypopharyngeal carcinoma and clinicopathological parameters and their clinical significance.
  
  
  METHODS
  The expression of MDM2 and p27 in 59 hypopharyngeal carcinoma were detected by S-P immunohistochemical technique.
  
  
  RESULTS
  The high-expression rates of MDM2 and p27 were 66.1% and 33.9%, respectively, and the low-expression rates of them were 33.9% and 66.1%, respectively. The expression of MDM2 was unrelated to p27 (P > 0.05). The lymph node metastasis in high-expression group of MDM2 was significantly higher than that in low-expression group (P < 0.01). The expression rate of p27 was significantly different among the four T groups and degree of differentiation, respectively (P < 0.05). The survival rate was significantly higher in high-expression rate group of MDM2 than that in low-expression rate group (P < 0.01), while the survival rate was significantly lower in high-expression rate group of p27 than that in low-expression rate group (P < 0.05).
  
  
  CONCLUSIONS
  The expression of MDM2 and p27 may be involved in carcinogenesis and progression in hypopharyngeal carcinoma. Combined detecting of MDM2 and p27 may predict its prognosis better in hypopharyngeal carcinoma.
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, 250012, China.
authors.forename: Xuezhong
authors.initials: X
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Tian
authors.forename: Liqiang
authors.initials: L
authors.lastname: Zhang
authors.forename: Xinliang
authors.initials: X
authors.lastname: Pan
authors.forename: Dapeng
authors.initials: D
authors.lastname: Lei
authors.forename: Guang
authors.initials: G
authors.lastname: Xie
authors.forename: Xinyong
authors.initials: X
authors.lastname: Luan
authors.forename: Tianduo
authors.initials: T
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology; D050760:Cyclin-Dependent Kinase Inhibitor p27 / Q000096:biosynthesis*; D005260:Female; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000378:metabolism* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D051736:Proto-Oncogene Proteins c-mdm2 / Q000096:biosynthesis*
chemical_list: D050760:Cyclin-Dependent Kinase Inhibitor p27; D051736:Proto-Oncogene Proteins c-mdm2