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Related Experiment Videos

HER-2 codon 655 polymorphism in cervical carcinogenesis.

M Ueda1, Y-C Hung, Y Terai

  • 1Department of Obstetrics and Gynecology, Osaka Medical College, 2-7 Daigakumachi, Takatsuki, Osaka 569-8686, Japan. gyn017@poh.osaka-med.ac.jp

International Journal of Gynecological Cancer : Official Journal of the International Gynecological Cancer Society
|February 1, 2006
PubMed
Summary
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This study found no link between HER-2 codon 655 gene variations and human papillomavirus (HPV) infection or cervical cancer risk in Japanese women. HER-2 polymorphism does not appear to influence cervical cancer development related to HPV.

Area of Science:

  • Oncology
  • Genetics
  • Virology

Background:

  • Cervical cancer is a significant global health concern, often linked to persistent high-risk human papillomavirus (HPV) infections.
  • Genetic variations, such as polymorphisms in the HER-2 gene, are being investigated for their potential role in cancer susceptibility.
  • The HER-2 (Human Epidermal growth factor Receptor 2) gene plays a role in cell growth and is implicated in various cancers.

Purpose of the Study:

  • To investigate the association between HER-2 codon 655 polymorphism and human papillomavirus (HPV) types in cervical cell samples.
  • To determine if HER-2 genotypes correlate with the presence or absence of squamous intraepithelial lesions (SILs) and HPV status.
  • To assess the potential role of HER-2 codon 655 polymorphism in the development of cervical cancer within a Japanese population.

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Main Methods:

  • Genotyping of HER-2 codon 655 polymorphism was performed on 279 cervical smear samples.
  • HPV DNA testing was conducted to identify HPV types, differentiating between high-risk and low-risk strains.
  • Statistical analysis compared genotype frequencies between patients with high-grade SIL, low-grade SIL, and control groups, considering HPV status.

Main Results:

  • A higher frequency of high-risk HPV was observed in patients with high-grade SIL compared to low-grade SIL and controls.
  • No statistically significant differences were found in the frequencies of HER-2 Ile/Ile, Ile/Val, and Val/Val genotypes between SILs and controls.
  • Genotype prevalence of HER-2 Ile/Ile versus combined Ile/Val + Val/Val showed no significant association with SILs or high-risk HPV status.

Conclusions:

  • The HER-2 polymorphism at codon 655 is unlikely to be associated with HPV status in cervical cell samples.
  • The study suggests that HER-2 codon 655 polymorphism does not play a significant role in the onset of cervical cancer in the studied Japanese population.
  • Further research may be needed to explore other genetic factors or HPV interactions in cervical carcinogenesis.