Tumor Biology

, Volume 34, Issue 4, pp 2175–2181

Serum miR-21 and miR-92a as biomarkers in the diagnosis and prognosis of colorectal cancer

  • Guang-Hui Liu
  • Zong-Guang Zhou
  • Rong Chen
  • Mon-Jin Wang
  • Bin zhou
  • Yuan Li
  • Xiao-Feng Sun
Research Article

DOI: 10.1007/s13277-013-0753-8

Cite this article as:
Liu, GH., Zhou, ZG., Chen, R. et al. Tumor Biol. (2013) 34: 2175. doi:10.1007/s13277-013-0753-8

Abstract

Previous studies from our laboratory identified a number of miRNAs that were aberrantly expressed in colorectal cancer (CRC) tissue. However, their diagnostic and prognostic value in serum has not been fully evaluated. In the present study, we measured the levels of five miRNAs (miR-21, miR-31, miR-92a, miR-18a, and miR-106a) in serum samples from 200 CRC patients, 50 advanced adenoma patients, and 80 healthy controls by real-time quantitative polymerase chain reaction (RT-PCR). In our study, the levels of miR-21 and miR-92a in patients with CRC and advanced adenoma were significantly higher than those in healthy controls (all P < 0.05). MiR-21 yielded an area under the receiver-operating characteristics (ROC) curve (AUC) of 0.802 and miR-92a yielded an AUC of 0.786 in discriminating CRCs from the controls. Additionally, miR-21 and miR-92a yielded an AUC of 0.709 and 0.701, respectively, in discriminating advanced adenomas from the controls. Combined ROC analyses using both miRNAs, revealed an elevated AUC of 0.847 in discriminating CRCs, and an AUC of 0.722 in discriminating advanced adenomas from the controls. In the multivariate Cox proportional hazards analysis, high miR-92a expression in CRC was independently associated with poor survival (P = 0.03; hazard ratio 4.36; 95 % confidence interval = 1.64–11.57). No significant difference was observed in the levels of miR-18a, miR-31, and miR-106a among CRC, advanced adenoma, and control samples. In summary, our data indicate that miR-21 and miR-92a serum levels have potential value for early detection of CRC. Furthermore, miR-92a has prognostic value in CRC patients.

Keywords

Colorectal cancer MicroRNA Serum Diagnosis Prognosis 

Abbreviations

miRNA

MicroRNA

CRC

Colorectal cancer

AUC

Area under the ROC curve

ROC

Receiver-operating characteristics

CEA

Carcinoembryonic antigen

Supplementary material

13277_2013_753_MOESM1_ESM.doc (34 kb)
Supplementary Table 1(DOC 54 kb)
13277_2013_753_MOESM2_ESM.doc (35 kb)
Supplementary Table 2(DOC 55 kb)

Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2013

Authors and Affiliations

  • Guang-Hui Liu
    • 1
    • 2
  • Zong-Guang Zhou
    • 1
    • 2
    • 3
  • Rong Chen
    • 1
    • 2
  • Mon-Jin Wang
    • 1
    • 2
  • Bin zhou
    • 2
  • Yuan Li
    • 2
  • Xiao-Feng Sun
    • 4
  1. 1.Department of Gastrointestinal SurgeryWest China Hospital, Sichuan UniversityChengduChina
  2. 2.Institute of Digestive SurgerySichuan UniversityChengduChina
  3. 3.National Key Laboratory of Biotherapy of West China HospitalSichuan UniversityChengduChina
  4. 4.Division of Oncology, Department of Clinical and Experimental Medicine Faculty of Health Sciences, County Council of ÖstergötlandUniversity of LinköpingLinköpingSweden

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