title: Serum decoy receptor 3 level: a predictive marker for nodal metastasis and survival among oral cavity cancer patients.
abstract: BACKGROUND
  Validating markers for prediction of nodal metastasis could be beneficial in treatment of oral cavity cancer. Decoy receptor 3 (DcR3), locus on 20q13, functions as a death decoy inhibiting apoptosis mediated by the tumor necrosis factor receptor (TNFR) family.
  
  
  METHODS
  This study analyzed the serum level of DcR3 in relationship to the clinical parameters of oral cavity cancer patients together with detection of DcR3 genomic copy number in primary and recurrent tumors.
  
  
  RESULTS
  Elevated serum DcR3 was associated with nodal metastasis and worse prognosis. Gain of DcR3 copy number was detected in 17% of primary tumor tissue but not found in healthy areca chewers. Tissue from recurrent tumors showed more frequent DcR3 copy number alteration (48%) than the paired primary tumor tissue.
  
  
  CONCLUSIONS
  Serum DcR3 level is a predictor for the nodal metastasis and survival among oral cavity cancer patients and the DcR3 copy number alteration could underlie oral carcinogenesis progression.
authors.affiliation: Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Hsi-Feng
authors.initials: HF
authors.lastname: Tu
authors.forename: Chung-Ji
authors.initials: CJ
authors.lastname: Liu
authors.forename: Shyun-Yeu
authors.initials: SY
authors.lastname: Liu
authors.forename: Yu-Ping
authors.initials: YP
authors.lastname: Chen
authors.forename: En-Hao
authors.initials: EH
authors.lastname: Yu
authors.forename: Shu-Chun
authors.initials: SC
authors.lastname: Lin
authors.forename: Kuo-Wei
authors.initials: KW
authors.lastname: Chang
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000097:blood*; D001707:Biopsy, Needle; D002294:Carcinoma, Squamous Cell / Q000097:blood* / Q000401:mortality / Q000556:secondary*; D015331:Cohort Studies; D016001:Confidence Intervals; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D053208:Kaplan-Meier Estimate; D016015:Logistic Models; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000097:blood* / Q000401:mortality* / Q000473:pathology; D009361:Neoplasm Invasiveness / Q000473:pathology; D009367:Neoplasm Staging; D016017:Odds Ratio; D011237:Predictive Value of Tests; D011379:Prognosis; D016016:Proportional Hazards Models; D053323:Receptors, Tumor Necrosis Factor, Member 6b / Q000097:blood* / Q000235:genetics; D018570:Risk Assessment; D016019:Survival Analysis
chemical_list: D014408:Biomarkers, Tumor; D053323:Receptors, Tumor Necrosis Factor, Member 6b; C505911:TNFRSF6B protein, human