例如:"lncRNA", "apoptosis", "WRKY"

MIR22HG inhibits cell growth, migration and invasion through regulating the miR-24-3p/p27kip1 axis in thyroid papillary carcinomas.

Eur Rev Med Pharmacol Sci. 2019 Jul;23(13):5851-5862. doi:10.26355/eurrev_201907_18327
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摘要


OBJECTIVE:To explore the underlying mechanism of ncRNA (MIR22HG) in thyroid papillary carcinomas. PATIENTS AND METHODS:40 pairs of thyroid papillary carcinomas tissues and adjacent normal tissues were collected from patients of the First Affiliated Hospital of Guangxi Medical University, who underwent oral surgery. qRT-PCR was applied to detect the expression of MIR22HG, miR-24-3p and p27kip1 in tissues and cells. Western blot was used to measure the protein level of p27kip1 in tissues and cells. Kaplan-Meier plot was used to analyze the overall survival rates in thyroid papillary carcinomas. Pearson's correlation analysis was used to analyze the correlation relationship among MIR22HG, miR-24-3p and p27kip1 expression. Flow cytometric assay was applied to measure cell apoptosis. Transwell assay was used to assess cell migration and invasion abilities. Luciferase reporter assay was applied to verify the molecular relationships among MIR22HG, miR-24-3p and p27kip1 in thyroid papillary carcinomas. RESULTS:LncRNA MIR22HG and p27kip expressed low while miR-24-3p expressed high in thyroid papillary carcinomas and cells. Overexpression of MIR22HG inhibited cell proliferation, migration and invasion, whereas promoted cell apoptosis in thyroid papillary carcinomas cells. However, these effects were reversed by upregulation of miR-24-3p. Further exploration showed that the promoted effects of miR-24-3p mimics on thyroid papillary carcinomas cells were suppressed by enhancing p27kip1 expression. Meanwhile, MIR22HG induced p27kip1 expression by binding miR-24-3p in thyroid papillary carcinomas. CONCLUSIONS:MIR22HG inhibited cell growth through modulating p27kip1 by decreasing miR-24-3p expression in thyroid papillary carcinomas, providing a new modulate mechanism and therapeutic targets in thyroid papillary carcinomas.

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