CD81 通过阻断 CD274/PD-L1 的选择性自噬降解驱动放射抵抗性胶质母细胞瘤的免疫逃逸
CD81 drives immune evasion in radioresistant glioblastoma by blocking selective autophagic degradation of CD274/PD-L1.
CELL INTELLIGENCE · 肿瘤细胞治疗研究
肿瘤细胞治疗研究
英文原题:High expression of BTN3A1 is associated with clinical and immunological characteristics and predicts a poor prognosis in advanced human gliomas.
High expression of BTN3A1 is associated with clinical and immunological characteristics and predicts a poor prognosis in advanced human gliomas.
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。
胶质瘤是中枢神经系统中最常见且最具侵袭性的肿瘤。尽管目前已有标准治疗方案,胶质母细胞瘤患者的中位生存期仍然不容乐观,徘徊在14个月左右。虽然已尝试通过免疫治疗抑制PD-1/PD-L1和CTLA-4/CD80-CD86轴,但结果尚未显示出显著疗效。免疫检查点Butyrophilin 3A1(BTN3A1)根据癌症类型的不同,可能发挥有利或有害的功能。
在我们的研究中,我们利用一个摩洛哥队列深入探讨了BTN3A1在胶质瘤中的作用。对34名患者进行了转录组分析,随后在27名患者中通过蛋白质分析进行了证实,并使用TCGA数据库(n = 667)进行了验证。
我们的结果揭示,在胶质母细胞瘤(4级)中BTN3A1表达升高,这一点在TCGA数据库和我们摩洛哥胶质瘤患者队列中均得到证实。在TCGA队列中,BTN3A1表达在IDH野生型患者中显著更高。我们观察到BTN3A1表达与B细胞、CD8+ T细胞、初始CD4+ T细胞和M2巨噬细胞的免疫浸润呈正相关。与BTN3A1表达降低的患者相比,BTN3A1表达升高的患者还表现出TGF-β、IL-10和TIM-3水平升高。值得注意的是,BTN3A1高表达的患者预后比低表达患者更差。结论:我们的发现表明,BTN3A1可能促进免疫抑制微环境的建立。因此,靶向BTN3A1可能为晚期胶质瘤的治疗提供新的治疗途径。
In our study, we utilized a Moroccan cohort to delve into the role of BTN3A1 in gliomas. A transcriptomic analysis was conducted on 34 patients, which was then corroborated through a protein analysis in 27 patients and validated using the TCGA database (n = 667).
Our results revealed an elevated expression of BTN3A1 in glioblastoma (grade 4), as evidenced in both the TCGA database and our cohort of Moroccan glioma patients. Within the TCGA cohort, BTN3A1 expression was notably higher in patients with wild-type IDH. We observed a positive correlation between BTN3A1 expression and immune infiltration of B cells, CD8+ T cells, naive CD4+ T cells, and M2 macrophages. Patients exhibiting increased BTN3A1 expression also presented elevated levels of TGF-β, IL-10, and TIM-3 compared to those with reduced BTN3A1 expression. Notably, patients with high BTN3A1 expression were associated with a poorer prognosis than their counterparts with lower expression. CONCLUSSION: Our findings suggest that BTN3A1 might promote the establishment of an immunosuppressive microenvironment. Consequently, targeting BTN3A1 could offer novel therapeutic avenues for the management of advanced gliomas.
在 PubMed 查看 → 出版商原文(DOI) 全文 PDF(PMC)· 可下载 治疗专题与资料阅读指南 资料来源与翻译说明 报告译文或资料问题 →
MEMBER ACCOUNT
登录成功会直接打开下一页。