title: Assessment of correlation between p16INK4a staining, specific subtype of human papillomavirus, and progression of LSIL/CIN1 lesions: first comparative study.
abstract: OBJECTIVE
  To study and compare the effectiveness of p16(INK4a) staining and specific human papillomavirus (HPV) subtypes as a prognostic marker in cervical intraepithelial neoplasia grade 1 (CIN1; low-grade squamous intraepithelial lesions).
  
  
  METHODS
  Sixty-four cervical samples diagnosed as CIN1 and stained with p16(INK4a), with HPV status assessed by polymerase chain reaction-direct sequencing.
  
  
  RESULTS
  Of the 34 p16(INK4a)-negative biopsy specimens, 26 regressed, seven persisted, and one progressed. Of the 20 p16(INK4a) diffusely positive biopsy specimens, seven regressed, eight persisted, and five progressed. Ten biopsy specimens stained positive only in the lower one-third of the sample, of which seven regressed and three persisted. p16(INK4a) diffusely positive CIN1 lesions were associated with only high-risk HPV subtypes, with the exception of one HPV-negative biopsy specimen. Three different high-risk HPV subtypes and one low-risk HPV subtype (HPV66) were identified in the six CIN1 lesions that progressed.
  
  
  CONCLUSIONS
  There is a significant relationship between p16(INK4a) immunostaining and follow-up (P = .002). p16(INK4a)-negative specimens or positivity in the lower one-third of CIN1 lesions seldom progress to a CIN2-3 lesion.
authors.affiliation: From the Department of Pathology.
authors.forename: Maryam
authors.initials: M
authors.lastname: Razmpoosh
authors.affiliation: Department of Gyneco-Obstetrics, and.
authors.forename: Andrée
authors.initials: A
authors.lastname: Sansregret
authors.affiliation: From the Department of Pathology.
authors.forename: Luc L
authors.initials: LL
authors.lastname: Oligny
authors.affiliation: From the Department of Pathology.
authors.forename: Natalie
authors.initials: N
authors.lastname: Patey
authors.affiliation: Laboratory of Molecular Diagnosis, CHU Sainte-Justine, Université de Montréal, Québec, Canada, and.
authors.forename: Virginie
authors.initials: V
authors.lastname: Dormoy-Raclet
authors.affiliation: URCA-CHU Sainte-Justine, Université de Montréal, Québec, Canada.
authors.forename: Thierry
authors.initials: T
authors.lastname: Ducruet
authors.affiliation: From the Department of Pathology, edorothee.dal_soglio.hsj@ssss.gouv.qc.ca.
authors.forename: Dorothée
authors.initials: D
authors.lastname: Bouron-Dal Soglio
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor; D002294:Carcinoma, Squamous Cell / Q000378:metabolism / Q000473:pathology / Q000821:virology*; D019941:Cyclin-Dependent Kinase Inhibitor p16 / Q000378:metabolism*; D018450:Disease Progression; D005260:Female; D006801:Humans; D008875:Middle Aged; D027383:Papillomaviridae / Q000302:isolation & purification*; D030361:Papillomavirus Infections / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D011379:Prognosis; D002583:Uterine Cervical Neoplasms / Q000378:metabolism / Q000473:pathology / Q000821:virology*; D002578:Uterine Cervical Dysplasia / Q000378:metabolism / Q000473:pathology / Q000821:virology*
chemical_list: D014408:Biomarkers, Tumor; D019941:Cyclin-Dependent Kinase Inhibitor p16
keywords: CIN1; Cervical intraepithelial neoplasia grade 1; HPV subtype; Human papillomavirus; LSIL; Low-grade squamous intraepithelial lesion; Prognosis; p16