LncRNA (HOTAIR) /miR-206/TAGLN2 signal axis regulates the invasion of papillarythyroid carcinoma cells

doi:10.16352/j.issn.1001-6325.2023.11.1642

Abstract

Abstract: Objective To investigate the molecular mechanism of lncRNA (HOTAIR)/miR-206/TAGLN2 signaling axis in regulating the invasion of papillary thyroid carcinoma cells line TPC-1. Methods The papillary thyroid carcinoma(PTC) and paracancerous tissues were collected from the First Hospital of Lanzhou University, and the expression of lncRNA (HOTAIR), miR-206 and TAGLN2 in PTC tissues as well as paracancerous tissues was detected by RT-qPCR and Western blot; The thyroid papillary cancer cells with miR-206 over-expression and HOTAIR under-expression were constructed to detect the expression of target gene and its effect on the invasion of TPC-1 cells by Transwell assay. Results Compared with the adjacent tissue, the expression of HOTAIR in papilla-rythyroid cancer tissue was increased by 2.48 times. miR-206-5p was decreased down to 0.6,and the expression of TAGLN2 was increased (P＜0.05). After over-expression of miR-206, the protein expression of TAGLN2 was decreased in TPC-1 cell, and the invasion of TPC-1 cells was inhibited (P＜0.05). Knockdown of HOTAIR increased expression of miR-206 in TPC-1 cells and decreased the expression of TAGLN2. The Transwell assay showed that the invasion of TPC-1 cells was significantly reduced (P＜0.05). Conclusions In PTC, reducing the expression of HOTAIR results in over-expression of miR-206 then further inhibits the expression of TAGLN2. The biological outcome is inhibition of invasion of thyroid cancer.

Key words: papillary thyroid carcinoma, invasion, HOTAIR, miR-206, TAGLN2

CLC Number:

R736.1

HOU Lijie, MA Chengxu, WANG Jingyu, TANG Xulei, FU Songbo. LncRNA (HOTAIR) /miR-206/TAGLN2 signal axis regulates the invasion of papillarythyroid carcinoma cells[J]. Basic & Clinical Medicine, 2023, 43(11): 1642-1647.

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