title: [Analysis of proteomic spectra in serum from patients with laryngeal carcinoma by SELDI-TOF-MS technology].
abstract: OBJECTIVE
  To screen the tumor markers of laryngeal carcinoma and to investigate their expression in preoperative and postoperative serum.
  
  
  METHODS
  The distinct protein in serum was detected in 32 cases of laryngeal carcinoma and 38 healthy people by IMAC-Cu proteinchip array and surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF-MS). The distinct proteins in serum were detected in 32 cases of laryngeal carcinoma preoperation and within 10 days 15 cases of laryngeal carcinoma postoperation with the same methods. The discriminatory profiling between preoperative and postoperative patients was analyzed by Biomarker Wizard software and Biomarker Pattern software.
  
  
  RESULTS
  The results showed that fifteen differentially expressed proteins in serum were screened by analysis of proteomic spectra of preoperative patients and normal subjects. Seventeen kinds of protein differentially expressed in serum were screened by analysis of proteomic spectra of preoperative and postoperative patients. Six kinds of protein (2958.52, 3796.89, 5148.86, 6115.57, 4052.18, and 7770.76) were obtained for making up patterns that was able to class the preoperative-team and postoperative-team. Corresponding correct ratio were 84.38% (27/32) and 73.33% (11/15).
  
  
  CONCLUSIONS
  The preliminary results suggest that classification system will provide a highly accurate and innovative approach for the early diagnosis of laryngeal carcinoma and judgement of prognosis. SELDI-TOF-MS technology is a useful tool for a high throughput screening of large-sized serum samples to discover potential biomarkers for laryngeal carcinoma.
authors.affiliation: Department of Otorhinolaryngology, the Affiliated Hospital of Yan'an University, Yan'an, 716000, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Xu
authors.forename: Shengduo
authors.initials: S
authors.lastname: Qiao
authors.forename: Hui
authors.initials: H
authors.lastname: Huangfu
authors.forename: Binquan
authors.initials: B
authors.lastname: Wang
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000097:blood*; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000097:blood* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D040081:Protein Array Analysis / Q000379:methods*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*
chemical_list: D014408:Biomarkers, Tumor