Prediction of high-grade cervical precancerous abnormalities: The role of personal factors, vaginal microflora, sexually transmitted infections, and high-risk human papillomavirus

Olga Plisko (Corresponding Author), Jana Žodžika, Irina Jermakova, Kristine Pcolkina, Amanda Prusakevica, Inta Liepniece-Karele, Marta Zariņa, Jeļena Storoženko, Dace Rezeberga

Research output: Contribution to journalArticlepeer-review

Abstract

High-risk human papillomavirus infection (HR-HPV) is necessary but not the only factor needed to develop cervical cancer. It is essential to estimate cervical cancer development risk in the population of high-risk HPV-positive women and to avoid unnecessary examinations and treatment in low-risk individuals. The study aimed to identify associations between different personal factors, vaginal microflora, sexually transmitted, high-risk HPV infection, and various degrees of cervical precancerous lesions. A study was performed in 2016-2020. The study group consisted of 112 patients with abnormal cervical cytology results referred for colposcopic examination. 120 women who came for a routine gynecological check-up were included in the control group. Material from the cervix and upper vaginal fornix was taken for pH measurement, wet mount microscopy, testing the six most common high-risk HPV DNA types (16/18, 31, 33, 45, 58), HPV E6/E7 mRNA, and 7 genital infections-C. trachomatis, N. gonorrhea, T. vaginalis, M. hominis, M. genitalium, U. urealyticum, U. parvum. Results showed that women with all grades of cervical intraepithelial neoplasia (CIN) more often were smokers, had increased vaginal pH levels, and had positive HR-HPV DNA and HR HPV E6/E7 mRNA expression. Abnormal vaginal microflora, especially types associated with aerobic vaginitis, and M. hominis were significantly more often found in women with CIN2+. The presence of C.trachomatis, U. parvum, and U.urealyticum did not differ between the groups. The most important factors independently associated with CIN2+ were positive high-risk HPV E6/E7 mRNA expression (OR 59.4, 95% CI 14.84-237.51), and positive high-risk HPV DNA (OR 3.9, 95% CI 1.16-13.23). Higher education level was associated with reduced risk of CIN2+ (OR 0.2, 95% CI 0.07-0.71). In conclusion, this study reports HR-HPV DNA of the most common six types and E6/E7 mRNA positivity as the most significant factors associated with CIN2+ lesions and higher education related to lower risk of high-grade cervical lesions.

Original languageEnglish
Article numbere0313004
JournalPLoS ONE
Volume19
Issue number11
DOIs
Publication statusPublished - Nov 2024

Keywords*

  • Humans
  • Female
  • Adult
  • Uterine Cervical Neoplasms/virology
  • Papillomavirus Infections/virology
  • Vagina/microbiology
  • Middle Aged
  • Sexually Transmitted Diseases/microbiology
  • Papillomaviridae/genetics
  • Precancerous Conditions/virology
  • Uterine Cervical Dysplasia/virology
  • Risk Factors
  • Microbiota
  • DNA, Viral/genetics
  • Human Papillomavirus Viruses

Field of Science*

  • 3.2 Clinical medicine

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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