title: [Human papilloma virus genotyping assay using restriction fragment mass polymorphism analysis, and its comparison with sequencing and hybrid capture assays].
abstract: BACKGROUND
  Infection with human papilloma virus (HPV) is the main cause of cervical cancer, and HPV genotyping is of increasing importance for determining clinical course and management of the disease based on the HPV genotypes. Here, we established a novel matrix-assisted laser desorption/ ionization time of flight mass spectrometry (MALDI-TOF MS) assay, termed restriction fragment mass polymorphism (RFMP) that is suitable for genotyping multiple HPV in an accurate and high-throughput manner. We evaluated the performance of the RFMP assay in HPV genotyping by comparing the results with those of direct or clonal sequencing and hybrid capture (HC) assays.
  
  
  METHODS
  The study population consisted of 50 patients with histologically confirmed cervical lesions and a positive test for HPV DNA. HPV genotyping was performed with RFMP, sequencing, and HC assays. The assigned genotypes and risk groups were compared among the methods.
  
  
  RESULTS
  Concordance rates in the genotype level between RFMP vs sequencing, sequencing vs HC, and HC vs RFMP were 98% (49/50), 88% (44/50), and 88% (44/50), respectivley. Especially, RFMP and sequencing were 100% concordant when assigned high-risk group was considered identical in 1 case of mixed genotypes identified only in RFMP. The observed discrepancy between HC and the other two methods is due to the assignment of six cases of low, intermediate, or unassigned risk genotypes as high-risk group in HC method.
  
  
  CONCLUSIONS
  RFMP, sequencing, and HC assays were highly concordant with each other in HPV genotyping. Compared to sequencing assay, RFMP assay is found to be advantageous in detecting mixed genotype infections. The accuracy and amenability to high-throughput analysis should make the RFMP assay suitable for reliable screening of HPV genotypes in clinical laboratories.
authors: Green Cross Reference Laboratory, Yongin, Korea.
authors: Eun Hee
authors: EH
authors: Lee
authors: Hyun Jae
authors: HJ
authors: Chung
authors: Heung Bum
authors: HB
authors: Oh
authors: Hyun Sook
authors: HS
authors: Chi
authors: Mi Sun
authors: MS
authors: Jee
authors: Sun Nie
authors: SN
authors: Park
authors: Sun Pyo
authors: SP
authors: Hong
authors: Wangdon
authors: W
authors: Yoo
authors: Soo-Ok
authors: SO
authors: Kim
mesh_terms: D005260:Female; D005838:Genotype; D006801:Humans; D009693:Nucleic Acid Hybridization / Q000379:methods; D027383:Papillomaviridae / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D030361:Papillomavirus Infections / Q000175:diagnosis*; D012150:Polymorphism, Restriction Fragment Length; D017422:Sequence Analysis, DNA / Q000379:methods; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D002583:Uterine Cervical Neoplasms / Q000175:diagnosis*