ArticleCancer management and research2020
LncRNA SNHG9 is Downregulated in Non-Small Cell Lung Cancer and Suppressed miR-21 Through Methylation to Promote Cell Proliferation.
Article in Cancer management and research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- Serum long non-coding RNA SNHG9 as a diagnostic biomarker for acute coronary syndrome and a predictor of prognosis following percutaneous coronary intervention: a clinical evaluation.Journal of cardiothoracic surgery · 2026Article
- Gut Microbiota-induced Long Non-coding RNA Snhg9 Regulates the Development of Human Malignant Tumors.Current molecular medicine · 2026Review
- Long non-coding RNAs and signaling networks in non-small cell lung cancer: mechanistic insights into tumor pathogenesis.Cancer gene therapy · 2025Review
- microRNA 21 and long non-coding RNAs interplays underlie cancer pathophysiology: A narrative review.Non-coding RNA research · 2024Review
- Review
- Review
- [Research Progress of LncRNA SNHGs in Regulating the Biological Behavior of Non-small Cell Lung Cancer].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2023Review
- LncRNA SNHG9 is a prognostic biomarker and correlated with immune infiltrates in prostate cancer.Translational andrology and urology · 2021Article
- SNHG9 promotes Hepatoblastoma Tumorigenesis via miR-23a-5p/Wnt3a Axis.Journal of Cancer · 2021Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLncRNA SNHG9 has been shown to be an oncogenic lncRNA in glioblastoma, while its role in other cancers is unknown. The aim of this study was to investigate the role of SNHG9 in non-small cell lung cancer (NSCLC).
methodsThe differential expression of SNHG9 in NSCLC was first explored by analyzing the TCGA dataset, followed by measuring the expression levels of SNHG9 in paired NSCLC and non-tumor tissues by RT-qPCR. Expression of miR-21 was also determined by RT-qPCR. Correlations were analyzed by linear regression. The interaction between miR-21 and SNHG9 was detected using RNA pull-down. The expression relationship between SNHG9 and miR-21 was analyzed by SNHG9 or miR-21 overexpression experiments. The effects of overexpression of SNHG9 on the methylation of miR-21 were analyzed by methylation-specific PCR (MSP). Cell proliferation was evaluated by CCK-8 assay.
resultsBy analyzing the TCGA dataset, we observed downregulation of SNHG9 in NSCLC, which was confirmed by measuring the expression levels of SNHG9 in paired NSCLC tumor tissues and non-tumor tissues from NSCLC patients involved in this study. MiR-21 was upregulated in NSCLC tumor tissues and inversely correlated with SNHG9 in cancer tissues but not in non-tumor tissues. The interaction between SNHG9 and miR-21 was predicted by bioinformatic analyses, which was further verified by RNA pull-down. In NSCLC cells, overexpression of SNHG9 led to downregulated miR-21 and increased methylation of miR-21 gene. In contrast, miR-21 did not affect the expression of SNHG9. In addition, overexpression of SNHG9 attenuated the enhancing effects of miR-21 on NSCLC proliferation.
conclusionSNHG9 might downregulate miR-21 through methylation to suppress cancer cell proliferation.
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