Identification of Prognostic Biomarkers in Papillary Thyroid Cancer and
Developing Non-Invasive Diagnostic Models Through Integrated Bioinformatics
Analysis

Afsaneh   Arefi   Oskouie; Mohammad   Saeed   Ahmadi; Amir      Taherkhani
doi:10.2174/2211536611666220124115445
Abstract

Background: Papillary thyroid cancer (PTC) is the most frequent subtype of thyroid carcinoma, mainly detected in patients with benign thyroid nodules (BTN). Due to the invasiveness of accurate diagnostic tests, there is a need to discover applicable biomarkers for PTC. So, in this study, we aimed to identify the genes associated with prognosis in PTC. Besides, we performed a machine learning tool to develop a non-invasive diagnostic approach for PTC.
Methods: For the study purposes, the miRNA dataset GSE130512 was downloaded from the GEO database and then analyzed to identify the common differentially expressed miRNAs in patients with non-metastatic PTC (nm-PTC)/metastatic PTC (m-PTC) compared with BTNs. The SVM was also applied to differentiate patients with PTC from those patients with BTN using the common DEMs. A protein-protein interaction network was also constructed based on the targets of the common DEMs. Next, functional analysis was performed, the hub genes were determined, and survival analysis was then executed.
Results: A total of three common miRNAs were found to be differentially expressed among patients with nm-PTC/m-PTC compared with BTNs. In addition, it was established that the autophagosome maturation, ciliary basal body-plasma membrane docking, antigen processing as ubiquitination & proteasome degradation, and class I MHC mediated antigen processing & presentation are associated with the pathogenesis of PTC. Furthermore, it was illustrated that RPS6KB1, CCNT1, SP1, and CHD4 might serve as new potential biomarkers for PTC prognosis.
Conclusion: RPS6KB1, CCNT1, SP1, and CHD4 may be considered new potential biomarkers used for prognostic aims in PTC. However, performing validation tests is inevitable in the future.
Keywords: Biomarkers, machine learning, miRNAs, papillary thyroid cancer, prognosis, protein interaction maps.
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DOI https://dx.doi.org/10.2174/2211536611666220124115445	Print ISSN 2211-5366
Publisher Name Bentham Science Publisher	Online ISSN 2211-5374
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