Knockdown of GNL3 inhibits LUAD cell growth by regulating Wnt–β-catenin pathway

Main Article Content

Guihong Dai
Yuejun Sun

Keywords

apoptosis, GNL3, lung adenocarcinoma (LUAD), prognosis, Wnt/β-catenin

Abstract

Background: Lung adenocarcinoma (LUAD) is a leading cause of tumor-associated mortality, and it is needed to find new target to combat this disease. Guanine nucleotide-binding -protein-like 3 (GNL3) mediates cell proliferation and apoptosis in several cancers, but its role in LUAD remains unclear.


Objective: To explore the expression and function of Guanine nucleotide-binding protein-like 3 (GNL3) in lung adenocarcinoma (LUAD) and its potential mechanism in inhibiting the growth of LUAD cells.


Methods: We evaluated the expression of GNL3 in LUAD tissues and its association with patient prognosis using databases and immunohistochemistry. Cell proliferation was assessed by CCK-8 assay as well as colony formation, while apoptosis was evaluated by FCM. The effect of GNL3 knockdown on the Wnt/β-catenin axis was investigated by Immunoblot analysis.


Results: GNL3 is overexpressed in LUAD tissues and is correlated with poor prognosis. Knockdown of GNL3 significantly inhibited the growth as well as induced apoptosis in A549 as well as H1299 cells. Furthermore, we found that the inhibitory effect of GNL3 knockdown on LUAD cell growth is associated with the downregulation of the Wnt/β-catenin axis.


Conclusion: GNL3 is key in the progression of LUAD by metiating Wnt/β-catenin axis. Targeting GNL3 may represent a novel therapeutic method for LUAD treatment.

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