Correlation of m6A methylation with immune infiltrates and poor prognosis in non-small cell lung cancer via a comprehensive analysis of RNA expression profiles.
Correlation of m6A methylation with immune infiltrates and poor prognosis in non-small cell lung cancer via a comprehensive analysis of RNA expression profiles.
复制标题
通过RNA表达谱的综合分析，m6A甲基化与非小细胞肺癌免疫浸润和不良预后的相关性
DOI：
10.21037/atm-21-4248
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发表时间：
2021-09
影响因子：
--
通讯作者：
Qi Y
中科院分区：
文献类型：
--
作者：
Dong B;Wu C;Li SH;Huang L;Zhang C;Wu B;Sheng Y;Liu Y;Ye G;Qi Y
Background Non-small cell lung cancer (NSCLC) is a common type of lung cancer with a poor prognosis. N6-methyladenosine (m6A) methylation, which is a reversible ribonucleic acid (RNA) modification, plays an important role in the occurrence and development of NSCLC. However, the potential effect of m6A methylation on immune infiltrates and prognosis remains unclear. Methods In this study, a weighted gene co-expression network analysis was used to screen out messenger RNAs (mRNAs) and non-coding RNAs (ncRNAs) that were co-expressed with m6A regulators. Additionally, 2 molecular subtypes (Clusters 1 and 2) were determined via consensus clustering. Subsequently, a prognostic risk model was constructed using both co-expressed mRNAs and ncRNAs. Based on the risk scores calculated by the prognostic model, the patients were divided into the high-risk group or low-risk group. Finally, the altered patterns of the tumor immune microenvironments (TIMEs) between the 2 stratification methods were thoroughly investigated, and a gene set enrichment analysis was conducted to further examine the potential mechanism. Results Patients in Cluster 1 had lower immunoscores, higher programmed death-ligand 1 (PD-L1) expression, and shorter overall survival (OS) compared to patients in Cluster 2. A further investigation based on the prognostic model revealed that the PD-L1 expression levels of patients in the high-risk group were significantly upregulated, and the immunoscores were lower than those in the low-risk group. The immune cells with a high infiltration in Cluster 1 showed a significant positive correlation with the risk score; those with low infiltration showed a significant negative correlation. The hallmarks of the Myelocytomatosis viral oncogene (MYC) targets, the second Gap/Mitosis (G2/M) checkpoint, E2 transcription Factor (E2F) targets, glycolysis, deoxyribonucleic acid (DNA) repair, and unfolded protein response were significantly enriched in Cluster 1, the low-immunoscore group, and the high-risk group. Conclusions This study revealed that m6A methylation is closely related to the poor prognosis of NSCLC patients via interference with the TIME, which suggests that m6A may play a role in optimizing individualized immunotherapy management and improving prognosis.
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影响因子：
28.5
作者：
Jin, Dan;Guo, Jiwei;Su, Guoming
通讯作者：
Su, Guoming
N6-甲基腺苷（m6A）介导的信使RNA特征和肿瘤免疫微环境可以预测肝细胞癌的预后
影响因子：
--
作者：
Shen S;Yan J;Zhang Y;Dong Z;Xing J;He Y
通讯作者：
He Y
影响因子：
14.5
作者：
Osmani L;Askin F;Gabrielson E;Li QK
通讯作者：
Li QK
影响因子：
11.5
作者：
Schwartz, AG;Prysak, GM;Brooks, S
通讯作者：
Brooks, S
影响因子：
16
作者：
Chen, Y. Grace;Chen, Robert;Chang, Howard Y.
通讯作者：
Chang, Howard Y.