New approach to human high-risk papillomavirus (HR-HPV) genotyping

Neoplasma. 2002;49(4):217-24.

Abstract

Human high-risk papillomaviruses (HR-HPVs) are involved in the induction of invasive cervical cancer. The aim of this study was to introduce a simple, semi-automated and reproducible approach suitable for HR-HPV detection in clinical practice. The procedure is based on DNA isolation, nested polymerase chain reaction, single strand conformational polymorphism and evaluation of HR-HPV genotypes with Gel-Pro software. The clinical performance of the new approach was assessed in two different patient materials: 1) cervical smears with cytological classification Pap2-3 or Pap3 lacking nuclear atypia (anisonucleosis and polychromasia) or koilocytotic atypia and without any previous therapy 2) formalin-fixed, paraffin-embedded cervical carcinoma and lymph node sections. Using the new approach we detected HR-HPV DNA in 64% patient samples cytologically classified as Pap2-3 or Pap3 respectively and in 80% formalin-fixed, paraffin-embedded lymph node sections histologically classified as lymph nodes without carcinoma cell infiltration. The combination of methods described in this study results in increased sensitivity of HR-HPV identification allowing detection of HPV DNA in a very small amount of target DNA so that it can be widely used in distinguishing the pre- malignant lesions and in determination of invading carcinoma cells to lymph nodes in patients with advanced cervical cancer. The new approach is useful in unambiguous HR-HPV genotyping even in double-HPV infection.

MeSH terms

  • Automation
  • Carcinoma / diagnosis*
  • Carcinoma / pathology
  • Cervix Uteri / virology
  • DNA, Viral / analysis*
  • Female
  • Genotype
  • Humans
  • Lymphatic Metastasis
  • Papillomaviridae / genetics
  • Papillomaviridae / isolation & purification*
  • Papillomavirus Infections / diagnosis*
  • Papillomavirus Infections / pathology
  • Polymerase Chain Reaction / methods*
  • Polymorphism, Single-Stranded Conformational
  • Precancerous Conditions / diagnosis
  • Sensitivity and Specificity
  • Software
  • Tumor Virus Infections / diagnosis*
  • Tumor Virus Infections / pathology
  • Uterine Cervical Neoplasms / diagnosis
  • Uterine Cervical Neoplasms / pathology

Substances

  • DNA, Viral