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.
肿瘤细胞治疗研究
英文原题:Beyond HLA-Ia: A multidimensional framework for Neoantigen immunotherapy.
Beyond HLA-Ia: A multidimensional framework for Neoantigen immunotherapy.
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。
胶质母细胞瘤(GBM)及其他恶性胶质瘤具有侵袭性进展、高复发率和长期预后差的特点,而当前的标准治疗所能带来的生存获益有限。基于新抗原的免疫治疗具有肿瘤特异性,但在胶质瘤中受到HLA-Ia下调、显著的瘤内异质性、免疫抑制性肿瘤微环境以及血脑屏障(BBB)的严重限制。在本综述中,我们总结了近期进展,并提出一个多维框架以应对这些障碍。具体而言,我们讨论了HLA-E作为替代性抗原呈递平台的潜在应用、γδ T细胞作为能够部分绕过经典HLA-Ia依赖性的互补效应细胞群体、人工智能辅助的新抗原优先级排序与优化,以及新兴的BBB穿透递送技术。这些策略共同将新抗原靶向与个体HLA限制解耦,建立了“基因型不可知”的基础。最终,这一整合框架旨在开发广泛适用的、即用型新抗原免疫疗法,提高转化可行性,并为克服胶质瘤免疫逃逸提供新方向。
Glioblastoma (GBM) and other malignant gliomas are associated with aggressive progression, high recurrence rates, and poor long-term outcomes, while current standard therapies provide limited survival benefit. Neoantigen-based immunotherapy offers tumor specificity but is severely restricted in gliomas by HLA-Ia downregulation, pronounced intratumoral heterogeneity, an immunosuppressive tumor microenvironment, and the blood-brain barrier (BBB).
In this review, we summarize recent advances and propose a multidimensional framework to address these barriers. Specifically, we discuss the potential use of HLA-E as an alternative antigen-presentation platform, γδ T cells as complementary effector populations capable of partially bypassing classical HLA-Ia dependence, artificial intelligence-assisted neoantigen prioritization and optimization, and emerging BBB-penetrating delivery technologies.
Together, these strategies uncouple neoantigen targeting from individual HLA restrictions, establishing a "genotype-agnostic" foundation. Ultimately, this integrated framework aims to develop broadly applicable, off-the-shelf neoantigen immunotherapies, improving translational feasibility and providing new directions for overcoming immune escape in gliomas.
MEMBER ACCOUNT
登录成功会直接打开下一页。