ArticleGenes2024
Identification of Antisense RNA NRAS-AS and Its Preliminary Exploration of the Anticancer Regulatory Mechanism.
Article in Genes, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo explore the influence of NRAS-AS on the proliferation, apoptosis, cell cycle, migration, and invasion ability of HCC cells, as well as its underlying mechanisms.
methodsA double-stranded cDNA library for liver cancer cells was constructed, and identified NRAS-AS through High-throughput sequencing, bioinformatics, chain-specific fluorescent quantitative PCR, and RACE. NRAS-AS's effects on HepG2 and SMMC-7721 cells and gene expression were evaluated. Additionally, the study analyzed the influence of NRAS-AS overexpression on tumor formation in nude mice. Immunohistochemistry and Western blotting were used to detect NRAS protein levels in clinical samples. RT-qPCR examined NRAS-AS and NRAS gene expression in HCC and adjacent tissues.
resultsNRAS-AS overexpression suppresses HCC cell proliferation and invasion, induces cell cycle alterations in HepG2 and SMMC-7721 cells, and enhances apoptosis. NRAS-AS interference promoted liver cancer invasion, inhibited apoptosis, and influences the cell cycle. Nude mice overexpressing NRAS-AS showed smaller tumors. NRAS-AS expression in liver cancer patients correlated with clinical factors. RT-qPCR revealed an inverse correlation between NRAS-AS and NRAS gene expression in liver cancer and adjacent tissues. IHC analysis revealed reduced NRAS protein expression in HepG2 and SMMC-7721 cells following NRAS-AS overexpression. The impact of AZA treatment on antisense NRAS-AS and sense NRAS gene expression in liver cancer cells was observed, and antisense.
conclusionReduced NRAS-AS expression is frequently observed in HCC and is inversely related to NRAS gene expression, suggesting a role in HCC pathogenesis through NRAS regulation. Targeting antisense RNA NRAS-AS could hold promise as a therapeutic target and diagnostic biomarker for HCC.
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