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Tumor Biology

, Volume 37, Issue 8, pp 11057–11063 | Cite as

Roles of microRNA-124a and microRNA-30d in breast cancer patients with type 2 diabetes mellitus

  • Shu Zhang
  • Ling-Ji Guo
  • Gang Zhang
  • Ling-Li Wang
  • Shuai Hao
  • Bo Gao
  • Yan Jiang
  • Wu-Guo Tian
  • Xian-E Cao
  • Dong-Lin Luo
Original Article

Abstract

The aim of the study is to explore roles of microRNA (miR)-124a and miR-30d in breast cancer (BC) patients with type 2 diabetes mellitus (T2DM). A total of 144 cases of confirmed diagnosed BC with T2DM, T2DM, BC, or healthy people were enrolled. Among them, BC patients with T2DM were regarded as the experiment group (n = 36), patients with T2DM as the Dm group (n = 36), patients with BC as the Bc group (n = 36), and healthy subjects as the healthy group (n = 36). The fasting insulin resistance index, glycosylated hemoglobin, and estradiol were measured. MiR-124a and miR-30d expressions were detected by quantitative real-time polymerase chain reaction (qRT-PCR). The insulin resistance index was significantly higher in the experiment group compared to the other three groups (all P < 0.05). The glycated hemoglobin was in a normal range in the Bc group and healthy group, but was higher in the experiment group and the Bc group compared to that in the healthy group (both P < 0.05). The serum estradiol level was obviously higher in the Bc group compared with that in the Dm group and the experiment group (both P < 0.05). The expressions of miR-124a and miR-30d were positively correlated with insulin resistance index, BMI and glycosylated hemoglobin (miR-124a r = 0.659, r = 0.785, and r = 0.862; miR-30d r = 0.742, r = 0.805, r = 0.765; all P < 0.001). Insulin resistance index was an independent factor for expressions of miR124-a and miR-30d. MiR-124a and miR-30d were correlated with insulin resistance and development of BC with T2DM. Although the mechanism is not clear, miR-124a and miR-30d potentially may be used as therapeutic targets and prognostic markers for BC patients with T2DM.

Keywords

MiR-124a MiR-30d Type 2 diabetes mellitus Breast cancer Insulin resistance index Glycosylated hemoglobin Estradiol 

Notes

Acknowledgments

The project was supported by the national science and technology project (2013GS500101-05). We would like to give our sincere appreciation to the reviewers for their helpful comments on this article.

Compliance with ethical standards

All patients signed informed consents. The experiment was approved by the ethics committee of our hospital, and the ethical approval for this study conformed to the standards of the Declaration of Helsinki.

Conflicts of interest

None

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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2016

Authors and Affiliations

  • Shu Zhang
    • 1
  • Ling-Ji Guo
    • 1
  • Gang Zhang
    • 1
  • Ling-Li Wang
    • 1
  • Shuai Hao
    • 1
  • Bo Gao
    • 1
  • Yan Jiang
    • 1
  • Wu-Guo Tian
    • 1
  • Xian-E Cao
    • 1
  • Dong-Lin Luo
    • 1
  1. 1.Department of Breast, Thyroid, and Vascular Surgery, Research Institute of Surgery, Daping HospitalThird Military Medical UniversityYuzhong AreaChina

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