Translation of a circulating miRNA signature of melanoma into a solid tissue assay to improve diagnostic accuracy and precision

Autor: Anthony Landgren, Sian Fereday, Ingrid Winship, Samuel King, Ryan van Laar, Mirette Saad, Richard McCoy, Catherine Uzzell
Rok vydání: 2021
Předmět:
Zdroj: Biomarkers in Medicine. 15:1111-1122
ISSN: 1752-0371
1752-0363
DOI: 10.2217/bmm-2021-0289
Popis: Aim: Successful treatment of cutaneous melanoma depends on early and accurate diagnosis of clinically suspicious melanocytic skin lesions. Multiple international studies have described the challenge of providing accurate and reproducible histopathological assessments of melanocytic lesions, highlighting the need for new diagnostic tools including disease-specific biomarkers. Previously, a 38-miRNA signature (MEL38) was identified in melanoma patient plasma and validated as a novel biomarker. In this study, MEL38 expression in solid tissue biopsies representing the benign nevi to metastatic melanoma spectrum is examined. Patients & methods: Nanostring digital gene expression assessment of the MEL38 signature was performed on 308 formalin-fixed paraffin-embedded biopsies of nevi, melanoma in situ and invasive melanoma. Genomic data were interrogated using hierarchical clustering, univariate and multivariate statistical approaches. Classification scores computed from the MEL38 signature were analyzed for their association with demographic data and histopathology results, including MPATH-DX class, AJCC disease stage and tissue subtype. Results: The MEL38 score can stratify higher-risk melanomas (MPATH-Dx class V or more advanced) from lower-risk skin lesions (class I–IV) with an area under the curve of 0.97 (p
Databáze: OpenAIRE