RESUMEN
BACKGROUND: The miRNAs play critical roles in the progression of various tumors. Our study aimed to screen and identify miRNAs to investigate their diagnostic and prognostic value for papillary thyroid carcinoma (PTC). METHODS: miRNAs were evaluated in PTC (n = 30) tissues, A-PTC (n = 30), benign nodules (n = 35) and A-benign nodules (n = 35). The expression levels of five miRNAs were quantified using real-time, quantitative PCR. ROC analysis was used to evaluate the miRNA diagnostic value. RESULTS: The expression of miR-1296-5p, miR-1301-3p, and miR-532-5p was significantly downregulated (p = 0.0001, p = 0.0006, p = 0.0024, respectively), while miR-551b-3p and miR-455-3p were significantly upregulated in PTC tissues compared to A-PTC tissues (p = 0.0005, p = 0.0046, respectively). Interestingly, the expression of miR-1296-5p was downregulated, while miR-551b-3p and miR-455-3p were upregulated in the A-PTC group compared to the A-benign group. Moreover, the miR-1296-5p expression level was associated with tumor size, the number of foci and the TNM stage; the miR-455-3p expression level was correlated with patient age, tumor size, and TNM stage; and the miR-532-5p expression level was correlated with patient age, lymph node metastasis and TNM stage correspondingly. ROC analysis revealed that the AUCs for miR-1301-3p, miR-1296-5p, miR-455-3p, miR-532-5p, and miR-551b-3p were 0.773, 0.790, 0.783, 0.744, and 0.650, respectively. CONCLUSIONS: Our results indicated that miR-1296-5p, miR-1301-3p, miR-532-5p, miR-551b-3p, and miR-455-3p are aberrantly expressed in papillary thyroid carcinomas and correlated with clinicopathological features. ROC curve analysis indicated that these five miRNAs have a potential diagnostic value. Consequently, we speculate that the five altered miRNAs may serve as potential diagnostic and prognostic biomarkers for PTC.
Asunto(s)
Biomarcadores de Tumor/genética , Regulación Neoplásica de la Expresión Génica , MicroARNs/genética , Cáncer Papilar Tiroideo/patología , Neoplasias de la Tiroides/patología , Femenino , Perfilación de la Expresión Génica , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Curva ROC , Cáncer Papilar Tiroideo/genética , Cáncer Papilar Tiroideo/cirugía , Neoplasias de la Tiroides/genética , Neoplasias de la Tiroides/cirugíaRESUMEN
BACKGROUND: Thyroglobulin (Tg) is one of the markers of thyroid cancer, and its concentration may be elevated in patients with malignant thyroid tumors. Thyroid-stimulating hormone (TSH) is secreted by the pituitary gland, which has a significant impact on thyroid gland function. Excessively high or low TSH levels may be associated with an increased risk of thyroid cancer. Thus, in-depth studies on the association of serum Tg and TSH levels with thyroid cancer risk in patients with thyroid nodules are warranted. This can help determine whether Tg and TSH levels can predict the degree of malignancy of thyroid nodules, which can in turn guide doctors in making accurate diagnoses and treatment decisions. Furthermore, such studies can provide more accurate diagnostic methods for thyroid nodules and help patients become aware of the presence of thyroid cancer as early as possible, thereby improving the success rate of treatment and prognosis. AIM: To investigate the association of serum Tg and TSH levels with the risk of thyroid cancer in patients undergoing thyroid nodule surgery. METHODS: The clinical data and laboratory examination results of 130 patients who underwent thyroid nodule surgery were retrospectively analyzed. Furthermore, their preoperative serum Tg and TSH levels were recorded. Histopathological examination conducted during follow-up revealed the presence of thyroid cancer. Correlation analysis were used to analyze the association of Tg and TSH levels with the risk of thyroid cancer. RESULTS: Of the 130 patients, 60 were diagnosed with thyroid cancer. Statistical analysis revealed a significant positive correlation between serum Tg levels and the risk of thyroid cancer (P < 0.05). This suggests that high serum Tg levels are associated with an increased risk of thyroid cancer. However, no significant correlation was observed between serum TSH levels and the risk of thyroid cancer (P > 0.05). CONCLUSION: In patients who underwent thyroid nodule surgery, serum Tg levels exhibited a significant correlation with the risk of thyroid cancer but serum TSH levels did not. These findings suggest that serum Tg can serve as an important biomarker for assessing the risk of thyroid cancer in these patients.