title: [Expressions of PDCD5 and p53 in oral leukoplakia and oral squamous cell carcinoma].
abstract: OBJECTIVE
  To study the relationship of the expressions of new apoptosis-related gene PDCD5 and p53 in oral normal mucosa, oral leukoplakia and oral squamous cell carcinoma.
  
  
  METHODS
  The expressions of PDCD5 and p53 were observed separately in 17 samples of oral normal mucosa, 60 of oral leukoplakia, and 30 of oral squamous cell carcinoma by Immunohistochemical means.
  
  
  RESULTS
  PDCD5 positive rate in oral normal mucosa was 88.2%, in oral leukoplakia was 63.3%, and in oral squamous cell carcinoma was 30%. P53 positive rate in oral normal mucosa was 0, in oral leukoplakia was 31.7%, and in oral squamous cell carcinoma was 60%. There was a negative relationship between PDCD5 SII and P53 SII in every lesion.
  
  
  CONCLUSIONS
  It suggests that both PDCD5 and p53 could be used as molecular markers of carcinogenesis for oral epithelium.
authors.affiliation: Department of Oral Medicine, Peking University School of Stomatology, Beijing 100081, China.
authors.forename: Xiao-yi
authors.initials: XY
authors.lastname: Zhao
authors.forename: Hong-wei
authors.initials: HW
authors.lastname: Liu
authors.forename: Ming-jie
authors.initials: MJ
authors.lastname: Wei
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D051017:Apoptosis Regulatory Proteins / Q000096:biosynthesis* / Q000235:genetics; D014408:Biomarkers, Tumor / Q000096:biosynthesis / Q000235:genetics; D002294:Carcinoma, Squamous Cell / Q000235:genetics* / Q000378:metabolism; D002471:Cell Transformation, Neoplastic / Q000378:metabolism; D005260:Female; D006801:Humans; D007972:Leukoplakia, Oral / Q000235:genetics* / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000235:genetics* / Q000378:metabolism; D009363:Neoplasm Proteins / Q000096:biosynthesis* / Q000235:genetics; D016159:Tumor Suppressor Protein p53 / Q000096:biosynthesis* / Q000235:genetics
chemical_list: D051017:Apoptosis Regulatory Proteins; D014408:Biomarkers, Tumor; D009363:Neoplasm Proteins; C117283:PDCD5 protein, human; D016159:Tumor Suppressor Protein p53