Objective: To analyze the effect of Linc00511 on thyroid cancer through the miR-4739/RNF38 pathway.
Methods: A total of 78 patients in our hospital from July 2020 to July 2021 were collected, which were diagnosed with thyroid cancer after clinicopathological examination. Their cancer tissue samples were included in the thyroid cancer tissue group, and the fat 2 cm tissue samples were included in the para-cancer tissue group. Real-time quantitative PCR was used to detect the expression of Linc00511, miR-4739 and RNF38 in tissue samples from the two groups. Statistical analysis of data was performed using SPSS26.0. The correlation between Linc00511, miR-4739 and RNF38 were analyzed by Pearson's correlation coefficient. The expression of Linc00511 in thyroid cancer tissues with different clinicopathological characteristics were compared.
Results: The expression levels of Linc00511 and RNF38 in thyroid cancer group were significantly higher than paracancer group, while miR-4739 levels were significantly lower (P < .05). Pearson correlation coefficient analysis showed that there was significant negative correlation between Linc00511 and miR-4739 expression and significant positive correlation between Linc00511 and RNF38 expression (P < .05). There was no significant difference in the expression of Linc00511 among different ages, sexes, and cancer types (P > .05). The expression of Linc00511 in patients with TNM stages I, II, and III were increased with the increase of TNM stage (P < .05). The expression of Linc00511 in patients with tumor diameter ≥1 cm was higher than that in patients with tumor diameter <1 cm and the difference was statistically significant (P < .05).
Conclusion: Linc00511 and RNF38 were significantly overexpressed in thyroid cancer tissues, while miR-4739 was significantly underexpressed. In thyroid cancer, Linc00511 can promote the invasion and metastasis of thyroid cancer cells by targeting miR-4739 and RNF38, and its expression level may reflect the progression of thyroid cancer, which can provide target reference for the clinical treatment of thyroid cancer.
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