Slumbering mucosal immune response in the cervix of human papillomavirus DNA-positive and -negative women

Int J Oncol. 2010 Dec;37(6):1565-73. doi: 10.3892/ijo_00000810.

Abstract

Persistent human papillomavirus (HPV) infection is a prerequisite for cervical cancer and results from bypassing the local immune response. Twenty-four volunteers underwent an ectocervical biopsy, Pap smear, tests for sexually transmitted infections including HIV and HPV genotyping. All answered a questionnaire regarding medical history. Repeat Pap smear and HPV genotyping was performed 9-26 months later. Quantitative reverse transcriptase (qRT-)PCR was used to assess expression of CD3, CD4, CD8, CD19, CD27, IL-2, IL-12, IL-4, IL-10, IL-17, HLA-DRα, TGFβ, IFNγ, PD-1, PD-L1, CTLA-4, LAG3, IgA, IgG, CCR5, CCL5/RANTES and the IL-7 receptor in the biopsies. Eleven of 24 volunteers were HPV DNA-positive at baseline. Four of 10 were infected with a persistent HPV genotype at follow-up. All target molecules were successfully amplified and quantified except for IL-4. We found no difference in mRNA expression of these molecules when comparing HPV DNA-positive and -negative women, neither when comparing persistently infected individuals or those who cleared the infection. However, mRNA expression of the B cell phenotypic marker CD19 was higher in women using hormonal contraception than those not (p<0.05). HPV infection does not evoke a local inflammatory immune response in the ectocervix measurable with qRT-PCR. Hormonal contraception may influence B cell activity in the cervix.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Alphapapillomavirus / genetics
  • Alphapapillomavirus / immunology
  • Biomarkers / analysis
  • Biomarkers / metabolism
  • Cervix Uteri / immunology
  • Cervix Uteri / metabolism
  • Cervix Uteri / pathology*
  • Cervix Uteri / virology
  • Cytokines / analysis
  • Cytokines / genetics
  • Cytokines / metabolism
  • DNA, Viral / analysis
  • DNA, Viral / metabolism*
  • Female
  • Genotype
  • Humans
  • Immunity, Mucosal / genetics
  • Immunity, Mucosal / physiology*
  • Immunoglobulins / genetics
  • Immunoglobulins / metabolism
  • Middle Aged
  • Papanicolaou Test
  • Papillomavirus Infections / genetics
  • Papillomavirus Infections / immunology*
  • Papillomavirus Infections / pathology
  • Papillomavirus Infections / virology*
  • Receptors, Immunologic / genetics
  • Receptors, Immunologic / metabolism
  • Vaginal Smears
  • Young Adult

Substances

  • Biomarkers
  • Cytokines
  • DNA, Viral
  • Immunoglobulins
  • Receptors, Immunologic