Open Access

Prognostic values of the inhibitor of DNA‑binding family members in breast cancer

  • Authors:
    • Xiao‑Ling Zhou
    • De Zeng
    • Yan‑Hong Ye
    • Shu‑Ming Sun
    • Xiao‑Feng Lu
    • Wei‑Quan Liang
    • Chun‑Fa Chen
    • Hao‑Yu Lin
  • View Affiliations

  • Published online on: July 23, 2018     https://doi.org/10.3892/or.2018.6589
  • Pages: 1897-1906
  • Copyright: © Zhou et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The inhibitor of DNA‑binding (ID) proteins are dominant‑negative modulators of transcription factors with basic helix‑loop‑helix (bHLH) structures, which control a variety of genes in cell cycle regulation. An increasing volume of evidence has demonstrated that the deregulated expression of IDs in several types of malignancy, including breast carcinoma, has been proven to serve crucial regulatory functions in tumorigenesis and the development of breast cancer (BC). The present study evaluated the prognostic values of the ID family members by investigating a set of publicly accessible databases, including Oncomine, bc‑GenExMiner, Kaplan‑Meier plotter and the Human Protein Atlas. The results demonstrated that mRNA levels of distinct IDs exhibited diverse profiles between BC and normal counterparts. The mRNA expression level of ID2 was significantly higher in breast cancer than normal tissues, while the mRNA expression levels of ID1, ID3 and ID4 were significantly lower in breast cancer tissues than in normal tissues. Furthermore, higher mRNA expression levels of ID1 and ID4 were associated with subgroups with lower pathological grades and fewer lymph node metastases. Survival analysis revealed that elevated mRNA levels of ID1 and ID4 predicted an improved survival in all patients with BC. Increased ID1 mRNA levels were associated with higher relapse‑free survival rates in all patients with BC, particularly in those with ER positive and Luminal A subtype tumors. Increased ID4 mRNA expression predicted longer survival times in all patients with BC, particularly in those with hormone receptor‑positive tumors or those treated with endocrine therapy. These results indicated that IDs are essential prognostic indicators in BC. Future studies on the effect of IDs on the pathogenesis and development of BC are warranted.
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October-2018
Volume 40 Issue 4

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Zhou XL, Zeng D, Ye YH, Sun SM, Lu XF, Liang WQ, Chen CF and Lin HY: Prognostic values of the inhibitor of DNA‑binding family members in breast cancer. Oncol Rep 40: 1897-1906, 2018.
APA
Zhou, X., Zeng, D., Ye, Y., Sun, S., Lu, X., Liang, W. ... Lin, H. (2018). Prognostic values of the inhibitor of DNA‑binding family members in breast cancer. Oncology Reports, 40, 1897-1906. https://doi.org/10.3892/or.2018.6589
MLA
Zhou, X., Zeng, D., Ye, Y., Sun, S., Lu, X., Liang, W., Chen, C., Lin, H."Prognostic values of the inhibitor of DNA‑binding family members in breast cancer". Oncology Reports 40.4 (2018): 1897-1906.
Chicago
Zhou, X., Zeng, D., Ye, Y., Sun, S., Lu, X., Liang, W., Chen, C., Lin, H."Prognostic values of the inhibitor of DNA‑binding family members in breast cancer". Oncology Reports 40, no. 4 (2018): 1897-1906. https://doi.org/10.3892/or.2018.6589