Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Jiangxi Key Laboratory of Neurological Tumors and Cerebrovascular Diseases, Nanchang, China.
Biosci Rep. 2023 May 5;43(5). doi: 10.1042/BSR20222100.
BACKGROUND: The connection between m6A-assiociateed lncRNAs and prognosis has been demonstrated in multiple types of tumors. However, potential roles of m6A-assiociateed lncRNAs in glioma is still rare. METHODS: We implemented consensus cluster analysis to group the downloaded samples into two subtypes. The least absolute shrinkage and selection operator (LASSO) analysis was used to create a risk model. Additionally, the conjunction between m6A-related lncRNAs and immune cells infiltration was explored by conducting the R package. Ultimately, we inspected the underlying downstream pathways of the two subtypes by performing Gene Set Enrichment Analysis (GSEA). The expression level of m6A-connected lncRNAs in glioma were examined by conducting in vitro experiments. RESULTS: We ascertained two subtypes of glioma in line with the consensus clustering of m6A-associated lncRNAs. We confirmed that age, grade, and IDH are related to the two subtypes. Additionally, the immune cells infiltration and immune checkpoint molecules of the two clusters were discussed. A risk signature including AL359643.3, AL445524.1, AL162231.2, AL117332.1, AP001486.2, POLR2J4, AC120036.4, LINC00641, LINC00900, CRNDE, and AL158212.3, was identified using the Cox regression and LASSO analyses. We also verified the prognostic value and discussed the immune cells infiltration and immune checkpoint molecules of the risk signature. In vitro experiments verified that the m6A-associated lncRNAs was abnormally expressed in glioma. CONCLUSION: We elaborated the significant role of m6A-connected lncRNAs in glioma prognosis and immune infiltration and suggest that these key regulators may serve as underlying therapeutic targets to build up the efficacy of glioma immunotherapy.
背景:m6A 相关 lncRNA 与多种类型肿瘤的预后之间存在关联。然而,m6A 相关 lncRNA 在神经胶质瘤中的潜在作用仍然很少见。
方法:我们进行了共识聚类分析,将下载的样本分为两个亚型。最小绝对收缩和选择算子(LASSO)分析用于创建风险模型。此外,通过 R 包探索了 m6A 相关 lncRNA 与免疫细胞浸润的关联。最终,通过基因集富集分析(GSEA)检查了两个亚型的潜在下游途径。通过体外实验检测了 m6A 相关 lncRNA 在神经胶质瘤中的表达水平。
结果:我们根据 m6A 相关 lncRNA 的共识聚类确定了两种神经胶质瘤亚型。我们证实年龄、分级和 IDH 与这两种亚型有关。此外,讨论了两个聚类的免疫细胞浸润和免疫检查点分子。使用 Cox 回归和 LASSO 分析,确定了包括 AL359643.3、AL445524.1、AL162231.2、AL117332.1、AP001486.2、POLR2J4、AC120036.4、LINC00641、LINC00900、CRNDE 和 AL158212.3 在内的风险标志物。我们还验证了风险标志物的预后价值,并讨论了免疫细胞浸润和免疫检查点分子。体外实验验证了 m6A 相关 lncRNA 在神经胶质瘤中异常表达。
结论:我们详细阐述了 m6A 相关 lncRNA 在神经胶质瘤预后和免疫浸润中的重要作用,并提出这些关键调节因子可能作为潜在的治疗靶点,提高神经胶质瘤免疫治疗的疗效。
BMC Bioinformatics. 2023-7-4
Acta Neuropathol Commun. 2025-4-11
Cell Death Discov. 2022-6-10
EMBO J. 2021-2-1
Cancer Cell Int. 2020-12-14