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E-GEOD-18182

ABSTRACT: Expression profile of lung adenocarcinoma, A549 cells following targeted depletion of non metastatic 2 (NME2/NM23 H2)

OTHER RELATED OMICS DATASETS IN: PRJNA173992PRJNA174034PRJNA123489PRJNA174033PRJNA173068PRJNA123513PRJNA119645

PROVIDER: E-GEOD-18182 | ExpressionAtlas | 2015-08-07

REPOSITORIES: ExpressionAtlas

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			Action	DRS
	E-GEOD-18182-analysis-methods.tsv	Tabular
	E-GEOD-18182-atlasExperimentSummary.Rdata	Rdata
	E-GEOD-18182-configuration.xml	Xml
	E-GEOD-18182-percentile-ranks.tsv	Tabular
	E-GEOD-18182.condensed-sdrf.tsv	Tabular

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Project description:Background: Lung cancer, particularly lung adenocarcinoma, remains one of the most lethal malignancies globally. Identifying aberrant molecular pathways and potential therapeutic targets is pivotal for improving patient outcomes. This study focused on the role of GSE1 (genetic suppressor element 1) in lung adenocarcinoma, elucidating its interaction mechanisms and downstream effects. Objectives: 1. Determine the expression levels of GSE1 in lung adenocarcinoma tissues and its implication on cancer cell behaviors. 2. Investigate the effects of GSE1 depletion on the proliferation and migration capabilities of A549 and H1299 lung adenocarcinoma cell lines. 3. Elucidate the potential cellular partners of GSE1, with a particular focus on its interaction with histone deacetylase 1 (HDAC1) and the broader BRAF-HDAC complex (BHC). 4. Analyze the transcriptomic changes following GSE1-knockdown in A549 cells to pinpoint its broad molecular influence. 5. Examine the possible cooperative role of GSE1 and HDAC1 in modulating the expression of significant genes, especially the tumor suppressor gene KLF6. Methods: GSE1 expression was assessed in lung adenocarcinoma tissues and correlated with cell behaviors. The effects of GSE1 depletion were studied in A549 and H1299 cells. Immunoprecipitation assays were utilized to confirm GSE1's interactions. Transcriptomic analysis identified differentially expressed genes post-GSE1-knockdown, with a focus on genes harboring HDAC1 binding sites. The relationship between GSE1 and KLF6 expression was verified using RT-qPCR and western blotting. Results: GSE1 was found to be upregulated in lung adenocarcinoma. Its depletion inhibited proliferation and migration in both A549 and H1299 cells. GSE1 was demonstrated to interact with HDAC1 and other BHC components. Following GSE1-knockdown, 207 genes were upregulated and 159 were downregulated, with 140 genes showcasing HDAC1 binding sites. Among these genes, GSE1 was revealed to inhibit the transcription of the tumor suppressor gene KLF6. Conclusion: GSE1 plays a central role in promoting non-small cell lung cancer progression, potentially through its cooperation with HDAC1. This interaction appears to downregulate KLF6 expression, highlighting a novel molecular pathway that can be targeted for therapeutic interventions in lung adenocarcinoma.

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E-GEOD-18182

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