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  • GADD45B Transcript Is a Pro...
    Barros-Filho, Mateus C; de Mello, Julia B H; Marchi, Fabio A; Pinto, Clóvis A L; da Silva, Igor C; Damasceno, Patricia K F; Soares, Milena B P; Kowalski, Luiz P; Rogatto, Silvia R

    Frontiers in endocrinology (Lausanne), 04/2020, Letnik: 11
    Journal Article

    Currently, there is a lack of efficient recurrence prediction methods for papillary thyroid carcinoma (PTC). In this study, we enrolled 202 PTC patients submitted to total thyroidectomy and radioiodine therapy with long-term follow-up (median = 10.7 years). The patients were classified as having favorable clinical outcome (PTC-FCO, no disease in the follow-up) or recurrence (PTC-RE). Alterations in , and were investigated ( = 202) and the transcriptome of 48 PTC (>10 years of follow-up) samples was profiled. Although no mutation was associated with the recurrence risk, 68 genes were found as differentially expressed in PTC-RE compared to PTC-FCO. Pathway analysis highlighted a potential role of cancer-related pathways, including signal transduction and FoxO signaling. Among the eight selected genes evaluated by RT-qPCR, and showed down-expression exclusively in the PTC-FCO group compared to non-neoplastic tissues (NT). Increased expression of was an independent marker of shorter disease-free survival hazard ratio (HR) 2.9; 95% confidence interval (CI95) 1.2-7.0 in our cohort and with overall survival in the TCGA dataset (HR = 4.38, CI95 1.2-15.5). In conclusion, transcript was identified as a novel prognostic marker candidate in PTC patients treated with total thyroidectomy and radioiodine therapy.