title: [The relationship between human papillomavirus and cyclin D1 gene amplification in squamous cell carcinomas of the head and neck].
abstract: BACKGROUND
  infection by oncogenic subtypes of human papillomavirus (HPV) and cyclin D1 gene (CCND1) amplification are frequent events in head and neck squamous cell carcinomas. The objective of this paper is to establish the relationship between the presence of human papillomavirus (HPV) gene sequences and the development of CCND1 gene amplification in these tumours.
  
  
  METHODS
  59 squamous cell carcinomas of the head and neck were studied for HPV types 6b and 16 and CCND1 gene amplification by polymerase chain reaction.
  
  
  RESULTS
  HPV DNA was detected in 14 tumors (24%). Ten of them were positive for the HPV type 6b and 4 for the HPV type 16. CCND1 gene amplification was found in 15 cases (25%). Although we have found a higher frequency of CCND1 amplification in the HPV-positive cases (36%, versus 22% in the HPV-negative cases), these differences were not statistically significant (P= 0,32).
  
  
  CONCLUSIONS
  The presence of HPV gene sequences does not seem to be related to a significative higher incidence of CCND1 gene amplification in the squamous cell carcinomas of the head and neck.
authors.affiliation: Servicio de Otorrinolaringología, Hospital Universitario Central de Asturias, Oviedo, Asturias. juanpablo.rodrigo@sespa.princast.es
authors.forename: J P
authors.initials: JP
authors.lastname: Rodrigo Tapia
authors.forename: L A
authors.initials: LA
authors.lastname: García González
authors.forename: I
authors.initials: I
authors.lastname: Alvarez Alvarez
authors.forename: R
authors.initials: R
authors.lastname: Cabanillas Farpón
authors.forename: C
authors.initials: C
authors.lastname: Suárez Nieto
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000235:genetics* / Q000821:virology*; D019938:Cyclin D1 / Q000235:genetics*; D005784:Gene Amplification; D006258:Head and Neck Neoplasms / Q000235:genetics* / Q000821:virology*; D052162:Human papillomavirus 16 / Q000235:genetics*; D052163:Human papillomavirus 6 / Q000235:genetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D030361:Papillomavirus Infections / Q000235:genetics*
chemical_list: D019938:Cyclin D1