Open Access

Analysis of cytosine-adenine repeats in P1 promoter region of IGF-1 gene in peripheral blood cells and cervical tissue samples of females with cervical intraepithelial lesions and squamous cervical cancer

  • Authors:
    • Wojciech Kwasniewski
    • Anna Gozdzicka‑Jozefiak
    • Maria Kotarska
    • Grzegorz Polak
    • Bartlomiej Barczynski
    • Justyna Broniarczyk
    • Witold Nowak
    • Maria Wolun‑Cholewa
    • Anna Kwasniewska
    • Jan Kotarski
  • View Affiliations

  • Published online on: November 10, 2014     https://doi.org/10.3892/mmr.2014.2916
  • Pages: 766-774
  • Copyright: © Kwasniewski et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

High oncogenic risk human papillomaviruses (HPVs) are closely associated with cancer of the cervix. However, HPV infection alone may not be sufficient to cause cervical cancer, and other factors or cofactors may have a cumulative effect on the risk of progression from cervical HPV infection to cancer. The present study investigates the cytosine‑adenine (CA) repeat polymorphism in the P1 promoter region of the insulin‑like growth factor‑1 (IGF‑1) gene among cervical precancerous and cancer patients and healthy control females. The association between these polymorphisms, tissue and blood serum levels of IGF‑1, and cervical cancer risk and progression is evaluated. The material for analysis consisted of blood cells and postoperative tissues from patients diagnosed with low‑grade squamous intraepithelial lesions (L‑SILs), high‑grade squamous intraepithelial lesions (H‑SILs) and invasive cervical cancer (ICC). A polymerase chain reaction amplification and the sequencing of DNA were used for the identification of (CA)n repeats in the IGF‑1 P1 region and detection of HPV DNA. The blood serum concentration of IGF was determined by enzyme‑linked immunosorbent assay. The identification of the IGF‑1 protein in the cervical tissues was performed by immunohistochemical analysis. The range of the length of the CA repeats in the study DNA was 11 to 21. However, the most common allele length and genotype in the control and study patients from serum and tissues was 19 CA repeats and a homozygous genotype of CA19/19. Statistically significant differences in the concentration of IGF‑1 in the blood serum were observed between H‑SILs and controls, only (p=0.047). However, the concentration of IGF‑1 in the group of females with CA19/19, CA19<19 and CA19>19 was significantly higher in the group of patients with H‑SIL (P=0.041) and ICC (P=0.048) in comparison with the control group. An association was detected between CA repeat length <19 and/or >19, IGF concentration in blood serum and tissues and the development of cervical cancer.
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February-2015
Volume 11 Issue 2

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Kwasniewski W, Gozdzicka‑Jozefiak A, Kotarska M, Polak G, Barczynski B, Broniarczyk J, Nowak W, Wolun‑Cholewa M, Kwasniewska A, Kotarski J, Kotarski J, et al: Analysis of cytosine-adenine repeats in P1 promoter region of IGF-1 gene in peripheral blood cells and cervical tissue samples of females with cervical intraepithelial lesions and squamous cervical cancer. Mol Med Rep 11: 766-774, 2015
APA
Kwasniewski, W., Gozdzicka‑Jozefiak, A., Kotarska, M., Polak, G., Barczynski, B., Broniarczyk, J. ... Kotarski, J. (2015). Analysis of cytosine-adenine repeats in P1 promoter region of IGF-1 gene in peripheral blood cells and cervical tissue samples of females with cervical intraepithelial lesions and squamous cervical cancer. Molecular Medicine Reports, 11, 766-774. https://doi.org/10.3892/mmr.2014.2916
MLA
Kwasniewski, W., Gozdzicka‑Jozefiak, A., Kotarska, M., Polak, G., Barczynski, B., Broniarczyk, J., Nowak, W., Wolun‑Cholewa, M., Kwasniewska, A., Kotarski, J."Analysis of cytosine-adenine repeats in P1 promoter region of IGF-1 gene in peripheral blood cells and cervical tissue samples of females with cervical intraepithelial lesions and squamous cervical cancer". Molecular Medicine Reports 11.2 (2015): 766-774.
Chicago
Kwasniewski, W., Gozdzicka‑Jozefiak, A., Kotarska, M., Polak, G., Barczynski, B., Broniarczyk, J., Nowak, W., Wolun‑Cholewa, M., Kwasniewska, A., Kotarski, J."Analysis of cytosine-adenine repeats in P1 promoter region of IGF-1 gene in peripheral blood cells and cervical tissue samples of females with cervical intraepithelial lesions and squamous cervical cancer". Molecular Medicine Reports 11, no. 2 (2015): 766-774. https://doi.org/10.3892/mmr.2014.2916