Study on the Mechanism of Long Non-Coding RNA-An Antisense Transcript of SATB Homeobox 2 in Promoting the Growth, Invasion and Migration of Nasopharyngeal Carcinoma

Abstract

This study intends to clarify lncRNA SATB2-AS1’s role in growth, invasion and migration of nasopharyngeal carcinoma cells and its effect on radiotherapy. The lncRNA array was used to analyze the differential expression of lncRNA in nasopharyngeal carcinoma biopsy tissues. QRT-PCR measured the levels of SATB2-AS1 and TIMP2 along with analysis of cell growth, migration, and invasion ability by MTT method and colony formation experiment. Luciferase reporter gene test assessed the relationship between SATB2-AS1 and TIMP2. LncRNA array analysis found significantly increased SATB2-AS1 expression in nasopharyngeal carcinoma tissues. Ectopic SATB2-AS1 overexpression in CNE1 cells promoted cell proliferation, migration, invasion and enhanced radiotherapy sensitivity. Bioinformatics and experiments confirmed that TIMP2 was a target of SATB2-AS1 and it participated in the upregulation of MMP-10 induced by SATB2-AS1. lncRNA SATB2-AS1 can promote the migration and invasion of nasopharyngeal carcinoma cells, indicating that it could be a potential marker for the treatment and prognosis.