The Prognostic and Predictive Value of Melanoma-related MicroRNAs Using Tissue and Serum: A MicroRNA Expression Analysis.
EBioMedicine 2015;
2:671-80. [PMID:
26288839 PMCID:
PMC4534690 DOI:
10.1016/j.ebiom.2015.05.011]
[Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/09/2015] [Accepted: 05/09/2015] [Indexed: 01/08/2023] Open
Abstract
The overall 5-year survival for melanoma is 91%. However, if distant metastasis occurs (stage IV), cure rates are < 15%. Hence, melanoma detection in earlier stages (stages I–III) maximises the chances of patient survival. We measured the expression of a panel of 17 microRNAs (miRNAs) (MELmiR-17) in melanoma tissues (stage III; n = 76 and IV; n = 10) and serum samples (collected from controls with no melanoma, n = 130; and patients with melanoma (stages I/II, n = 86; III, n = 50; and IV, n = 119)) obtained from biobanks in Australia and Germany. In melanoma tissues, members of the ‘MELmiR-17’ panel were found to be predictors of stage, recurrence, and survival. Additionally, in a minimally-invasive blood test, a seven-miRNA panel (MELmiR-7) detected the presence of melanoma (relative to controls) with high sensitivity (93%) and specificity (≥ 82%) when ≥ 4 miRNAs were expressed. Moreover, the ‘MELmiR-7’ panel characterised overall survival of melanoma patients better than both serum LDH and S100B (delta log likelihood = 11, p < 0.001). This panel was found to be superior to currently used serological markers for melanoma progression, recurrence, and survival; and would be ideally suited to monitor tumour progression in patients diagnosed with early metastatic disease (stages IIIa–c/IV M1a–b) to detect relapse following surgical or adjuvant treatment.
A seven-miRNA panel (MELmiR-7) detected the presence of melanoma with high sensitivity (93%) and specificity (≥ 82%).
In serially collected stage IV specimens, members of the ‘MELmiR-7’ panel confirmed tumour progression in 100% of cases.
The ‘MELmiR-7’ panel is superior to currently used serological markers for melanoma progression, recurrence, and survival.
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