Insulin‑like growth factor 1 receptor expression in breast cancer tissue and mammographic density

  • Authors:
    • Woo‑Young Sun
    • Hyo‑Young Yun
    • Young‑Jin Song
    • Heon Kim
    • Ok‑Jun Lee
    • Seok‑Jin Nam
    • Ja‑Seung Koo
  • View Affiliations

  • Published online on: January 27, 2015     https://doi.org/10.3892/mco.2015.497
  • Pages: 572-580
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Abstract

The aim of this study was to evaluate the association between insulin‑like growth factor 1 receptor (IGF‑1R) expression in breast cancer tissue and mammographic density and the clinical significance of IGF‑1R overexpression. A total of 167 patients with primary invasive breast cancer were analyzed. Mammographic breast density and IGF‑1R overexpression were correlated with clinicopathological parameters and analyzed by overall survival (OS) and disease‑free survival (DFS). Increased breast tissue density was significantly associated with age, body mass index, menopausal status, histological grade and IGF‑1R overexpression in the univariate analysis and with age (P=0.001), histological grade (P=0.045) and IGF‑1R overexpression (P=0.021) in the multivariate analysis. IGF‑1R overexpression was significantly associated with dense breast tissue in patients aged >40 years (P=0.002). IGF‑1R overexpression in breast cancer in premenopausal women was associated with human epidermal growth factor receptor 2 (HER‑2) positivity (P=0.016) and worse DFS (P=0.0414). There was no significant difference in OS and DFS between dense and non‑dense breast tissue. IGF‑1R expression in breast cancer tissue was significantly associated with mammographic breast tissue density in patients aged >40 years. It appears that IGF‑1R expression in breast cancer tissue plays an important role in breast cancer in patients with dense breast tissue. In premenopausal women, IGF‑1R overexpression in breast cancer tissue was significantly associated with HER‑2 positivity and poor DFS.
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May-2015
Volume 3 Issue 3

Print ISSN: 2049-9450
Online ISSN:2049-9469

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Spandidos Publications style
Sun WY, Yun HY, Song YJ, Kim H, Lee OJ, Nam SJ and Koo JS: Insulin‑like growth factor 1 receptor expression in breast cancer tissue and mammographic density. Mol Clin Oncol 3: 572-580, 2015.
APA
Sun, W., Yun, H., Song, Y., Kim, H., Lee, O., Nam, S., & Koo, J. (2015). Insulin‑like growth factor 1 receptor expression in breast cancer tissue and mammographic density. Molecular and Clinical Oncology, 3, 572-580. https://doi.org/10.3892/mco.2015.497
MLA
Sun, W., Yun, H., Song, Y., Kim, H., Lee, O., Nam, S., Koo, J."Insulin‑like growth factor 1 receptor expression in breast cancer tissue and mammographic density". Molecular and Clinical Oncology 3.3 (2015): 572-580.
Chicago
Sun, W., Yun, H., Song, Y., Kim, H., Lee, O., Nam, S., Koo, J."Insulin‑like growth factor 1 receptor expression in breast cancer tissue and mammographic density". Molecular and Clinical Oncology 3, no. 3 (2015): 572-580. https://doi.org/10.3892/mco.2015.497