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Published on: October 27, 2014
Knockdown of GNL3 inhibits LUAD cell growth by regulating Wnt-β-catenin pathway
1Department of Pathology, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu Province China.
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.
Insights
Guanine nucleotide-binding protein-like 3 (GNL3) is overexpressed in lung adenocarcinoma (LUAD) and drives tumor growth. Inhibiting GNL3 may offer a new therapeutic strategy for LUAD patients.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Lung adenocarcinoma (LUAD) is a major cause of cancer mortality, necessitating novel therapeutic targets.
- The role of Guanine nucleotide-binding protein-like 3 (GNL3) in LUAD pathogenesis is currently not well-understood.
Purpose of the Study:
- To investigate the expression and functional significance of GNL3 in LUAD.
- To elucidate the mechanism by which GNL3 influences LUAD cell growth and apoptosis.
Main Methods:
- GNL3 expression analysis in LUAD tissues using databases and immunohistochemistry.
- Assessment of cell proliferation (CCK-8, colony formation) and apoptosis (FCM) following GNL3 modulation.
- Investigation of GNL3's impact on the Wnt/β-catenin signaling pathway via immunoblot analysis.
Main Results:
- GNL3 is significantly overexpressed in LUAD tissues, correlating with poorer patient prognosis.
- GNL3 knockdown suppressed LUAD cell proliferation and induced apoptosis in vitro.
- The anti-proliferative and pro-apoptotic effects of GNL3 inhibition were linked to the downregulation of the Wnt/β-catenin pathway.
Conclusions:
- GNL3 plays a critical role in LUAD progression by regulating the Wnt/β-catenin axis.
- Targeting GNL3 presents a promising novel therapeutic avenue for lung adenocarcinoma treatment.
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