Journal
JOURNAL OF CELLULAR BIOCHEMISTRY
Volume 122, Issue 9, Pages 969-982Publisher
WILEY
DOI: 10.1002/jcb.29559
Keywords
metastasis; miR-873-5p; NSCLC; TDRG1; ZEB1
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This study demonstrates that TDRG1 is significantly overexpressed in NSCLC, and interacts with miR-873-5p to positively regulate the expression of ZEB1, thereby facilitating the progression of NSCLC.
Long noncoding RNAs (lncRNAs) are dysregulated in various malignancies and involved in the growth and aggressive phenotypes of cancer cells. Previous studies indicate that lncRNA testis development related 1 (TDRG1) plays critical roles in the development of several malignancies. Nevertheless, the molecular mechanism underlying TDRG1 contributes to non-small cell lung cancer (NSCLC) remains elusive. Here, we demonstrate that TDRG1 is significantly overregulated in NSCLC tissues and cell lines. Knockdown of TDRG1 inhibits the proliferation and metastatic-related traits of NSCLC cell in vitro whereas overexpression of TDRG1 causes opposite results. In addition, TDRG1 silencing inhibits the growth and metastatic ability of NSCLC cell in vivo as demonstrated by xenograft tumor model and lung metastasis model. The binding capacity of TDRG1 with miR-873-5p is demonstrated by bioinformatics prediction tool and luciferase reporter gene assay. Additional, the rescue experiments indicate that TDRG1 interacts with miR-873-5p and its expression is positively associated with the target of miR-873-5p, zinc finger e-box binding homeobox 1 (ZEB1). Altogether, lncRNA TDRG1 facilitates the progression of NSCLC via interacting with miR-873-5p and positively regulates the expression of ZEB1.
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