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<p>Long non-coding RNAs (lncRNAs) play important roles in the occurrence and development of multiple cancers, but the role of lncRNAs in breast cancer has not been fully elucidated. We integrated data mining, bioinformatics analysis, and reverse transcription quantitative polymerase chain reaction (RT-qPCR) to pinpoint key lncRNAs that modulate breast cancer development. In vitro functional assays evaluated the impact of lncRNA 11β-hydroxysteroid dehydrogenase type 1-antisense RNA 1 (HSD11B1-AS1) on breast cancer cells proliferation, migration, and invasion. Interactions between HSD11B1-AS1 and Glyoxylate Reductase 1 Homolog (GLYR1) within breast cancer cells were confirmed through bioinformatics prediction, chromatin immunoprecipitation (ChIP), and dual-luciferase reporter assays. Rescue experiments substantiated the involvement of GLYR1 in breast cancer advancement through the regulation of HSD11B1-AS1. HSD11B1-AS1 is markedly downregulated in breast cancer tissues and cell lines, correlating with an unfavorable prognosis for patients. Functional assays revealed that the suppression of HSD11B1-AS1 notably amplified the proliferation, migration, and invasive capabilities of breast cancer cells. Conversely, the overexpression of HSD11B1-AS1 significantly curtailed the proliferation, migration, and invasion of breast cancer cells. Mechanistically, GLYR1 directly binds to the HSD11B1-AS1 promoter and repressess its transcription, thereby enhancing the malignant behaviors of breast cancer cells, including proliferation, migration, and invasion. GLYR1-mediated suppression of HSD11B1-AS1 drives breast cancer progression. The GLYR1/HSD11B1-AS1 axis may represent a promising avenue for diagnostic biomarkers and therapeutic intervention in breast cancer.</p>

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GLYR1-mediated downregulation of lncRNA HSD11B1-AS1 promotes proliferation, migration, and invasion of breast cancer cells

  • 期刊论文

  • 发表日期：

    2025年11月11日

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  • Yingying Lei,
  • Yuqing Li,
  • Yanyan Yu,
  • Meili Guo,
  • Wenwen Qin,
  • Xiaoyang Liang

摘要

Long non-coding RNAs (lncRNAs) play important roles in the occurrence and development of multiple cancers, but the role of lncRNAs in breast cancer has not been fully elucidated. We integrated data mining, bioinformatics analysis, and reverse transcription quantitative polymerase chain reaction (RT-qPCR) to pinpoint key lncRNAs that modulate breast cancer development. In vitro functional assays evaluated the impact of lncRNA 11β-hydroxysteroid dehydrogenase type 1-antisense RNA 1 (HSD11B1-AS1) on breast cancer cells proliferation, migration, and invasion. Interactions between HSD11B1-AS1 and Glyoxylate Reductase 1 Homolog (GLYR1) within breast cancer cells were confirmed through bioinformatics prediction, chromatin immunoprecipitation (ChIP), and dual-luciferase reporter assays. Rescue experiments substantiated the involvement of GLYR1 in breast cancer advancement through the regulation of HSD11B1-AS1. HSD11B1-AS1 is markedly downregulated in breast cancer tissues and cell lines, correlating with an unfavorable prognosis for patients. Functional assays revealed that the suppression of HSD11B1-AS1 notably amplified the proliferation, migration, and invasive capabilities of breast cancer cells. Conversely, the overexpression of HSD11B1-AS1 significantly curtailed the proliferation, migration, and invasion of breast cancer cells. Mechanistically, GLYR1 directly binds to the HSD11B1-AS1 promoter and repressess its transcription, thereby enhancing the malignant behaviors of breast cancer cells, including proliferation, migration, and invasion. GLYR1-mediated suppression of HSD11B1-AS1 drives breast cancer progression. The GLYR1/HSD11B1-AS1 axis may represent a promising avenue for diagnostic biomarkers and therapeutic intervention in breast cancer.