MicroRNA Expression Profiling-Potential Molecular Discrimination of Papillary Thyroid Carcinoma Subtypes

Overview

Journal Biomedicines

Specialty Biomedical Engineering

Date 2024 Jan 23

PMID 38255241

Authors

Horatiu Silaghi

Laura Ancuta Pop

Carmen Emanuela Georgescu

Diana Muntean

Doinita Crisan

Patricia Silaghi

Ionela Lungu

Bogdana Adriana Nasui

Eva-H Dulf

Cornelia Braicu

Ioana Berindan-Neagoe

Cristina Alina Silaghi

Affiliations

Soon will be listed here.

Abstract

Methods: In this cross-sectional study, total RNA was extracted from paraffin-embedded tissues of 43 patients, 17 with an infiltrative follicular variant of PTC (iFVPTC) and 26 with a conventional variant of PTC (cPTC). Nine miRNAs were evaluated using qRT-PCR technology and specific miRNA assays.

Results: We found specific patterns for cPTC and iFVPTC, such as miRNA altered in both types of tumours (miR-146b-5p, miR-181a-5p, miR-221-3p, miR-21-5p and miR-222-3p) and two miRNAs significantly expressed only in cPTC (miR-20b-5p, miR-21-5p). The iFVPTC group presented strong and moderate correlations between miRNA expression and clinical data. miR-221-3p, miR-195-5p, miR-181-5p, miR-146b-5p and miR-222 were correlated with age, tumour size (TS) or lymph node metastases (N), while only miR-20b-5p, miR-195-5p and miR-181-5p were correlated with TS, N and age in the cPTC group.

Conclusions: The present study allowed the identification of a signature of two miRNAs to confirm miRNA differences between the two histological subtypes of TC. Our results provide advances in the molecular diagnosis of TC and could help to improve the diagnostic performance of already existing molecular classifiers.

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