← 返回

构建端粒相关基因特征以预测胶质瘤的预后和免疫景观

英文原题:Construction of a telomere-related gene signature to predict prognosis and immune landscape for glioma.

查看英文原题

Construction of a telomere-related gene signature to predict prognosis and immune landscape for glioma.

PubMed 2023/06/02(内容时间) Front Endocrinol (Lausanne) Q1 · IF 5.7(JCR 2025)

分数与星级只用于站内排序 —— 不代表疗效、安全性或个人适用性。

研究概要

本研究的发现提供了证据,表明 TRGs 可能预测胶质瘤患者的预后,有助于识别胶质瘤免疫治疗的有效靶点,并为胶质瘤患者的高效、个性化治疗方法提供基础。

研究思路结论见上方概要

胶质瘤是脑部最常见的恶性肿瘤之一。然而,胶质瘤的临床预后较差。因此,需要探索特异性检测标志物和治疗靶点,以提高BC患者的生存率。因此,我们需要寻找优质的免疫检查点,以支持胶质瘤免疫治疗的疗效。

我们首先识别了差异表达的端粒相关基因(TRGs),并据此通过单因素和多因素Cox分析构建了一个风险模型。随后验证了该模型的准确性。我们评估了免疫功能的变化,并观察了免疫检查点基因的表达水平。最后,为了评估胶质瘤临床治疗中常用的抗肿瘤药物,我们计算了药物的半数抑制浓度。

我们最终确定了9个TRGs并构建了一个风险模型。通过对该模型的验证,我们发现预测值与观察值之间具有良好的一致性。随后,我们在不同风险组之间找到了633个差异表达基因,以识别不同组之间的各种分子通路。CD4+ T细胞、CD8+ T细胞、成纤维细胞、内皮细胞、巨噬细胞M0、M1和M2、肥大细胞、髓系树突状细胞和中性粒细胞的富集与风险评分呈正相关,而B细胞和NK细胞的富集与风险评分呈负相关。多个免疫检查点相关基因的表达在不同风险组之间存在显著差异。最后,为了为不同个体制定个性化治疗方案,我们为不同组别的患者寻找了多种化疗药物。

展开英文摘要原文

Glioma is one of the commonest malignant tumors of the brain. However, glioma present with a poor clinical prognosis. Therefore, specific detection markers and therapeutic targets need to be explored as a way to promote the survival rate of BC patients. Therefore, we need to search for quality immune checkpoints to support the efficacy of immunotherapy for glioma.

We first recognized differentially expressed telomere-related genes (TRGs) and accordingly developed a risk model by univariate and multivariate Cox analysis. The accuracy of the model is then verified. We evaluated the variations in immune function and looked at the expression levels of immune checkpoint genes. Finally, to assess the anti-tumor medications often used in the clinical treatment of glioma, we computed the half inhibitory concentration of pharmaceuticals.

We finally identified nine TRGs and built a risk model. Through the validation of the model, we found good agreement between the predicted and observed values. Then, we found 633 differentially expressed genes between various risk groups to identify the various molecular pathways between different groups. The enrichment of CD4+ T cells, CD8+ T cells, fibroblasts, endothelial cells, macrophages M0, M1, and M2, mast cells, myeloid dendritic cells, and neutrophils was favorably correlated with the risk score, but the enrichment of B cells and NK cells was negatively correlated with the risk score. The expression of several immune checkpoint-related genes differed significantly across the risk groups. Finally, in order to create individualized treatment plans for diverse individuals, we searched for numerous chemotherapeutic medications for patients in various groups.

The findings of this research provide evidence that TRGs may predict a patient's prognosis for glioma, assist in identifying efficient targets for glioma immunotherapy, and provide a foundation for an efficient, customized approach to treating glioma patients.

论文信息

作者
Xie Q、Liu T、Zhang X、Ding Y、Fan X
第一作者单位
Department of Neurosurgery, Hangzhou Ninth People's Hospital, Hangzhou, Zhejiang, China.China
通讯作者单位
Intensive Care Unit, Hangzhou Ninth People's Hospital, Hangzhou, Zhejiang, China.China
文献类型
非美国政府资助研究
期刊
Frontiers in endocrinology2023
原文标识
PubMed 37351101 · DOI 10.3389/fendo.2023.1145722