决定异体 CAR T 细胞排斥与扩增的细胞和分子机制
Cellular and molecular mechanisms determining allogeneic CAR T cell rejection and expansion.
我们评估了11例接受单一批次cemacabtagene ansegedleucel(cema-cel)治疗的大B细胞淋巴瘤患者,cemacabtagene ansegedleucel是一种异体抗CD19 CAR T产品。
英文原题:Hybrid nanoparticle-immune cell conjugates for augmented anticancer efficacy.
Hybrid nanoparticle-immune cell conjugates for augmented anticancer efficacy.
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细胞治疗因其固有的细胞毒性以及不依赖抗原提呈即可识别肿瘤细胞的能力,已成为肿瘤免疫治疗中一种强有力的手段。
细胞疗法凭借内在细胞毒性以及无需抗原呈递即可识别肿瘤细胞的能力,已成为癌症免疫治疗的重要手段。其中,CAR-T 和CAR-NK细胞在临床前研究中显示出有前景的抗癌作用。与此同时,使用纳米颗粒或生物材料进行细胞表面工程化,已成为调节免疫细胞功能的互补策略。疏水插入、共价偶联、糖工程、正交化学及主客体相互作用等技术,可直接在细胞表面呈递配体或免疫调节剂。纳米颗粒-细胞偶联物(NCC)由此能够实现可编程相互作用、控制释放并增强肿瘤靶向。但当前偶联方法通常涉及复杂化学反应,可能损害细胞活性,或受限于细胞特异性的配体-受体相互作用。本综述概述NCC研发的关键方面:(1)纳米颗粒设计标准;(2)NCC构建策略;(3)直接偶联的局限;以及(4)人工智能在设计先进细胞疗法中的作用。总体而言,NCC拓展了治疗工具,并为新一代癌症免疫治疗提供了基因工程之外的模块化替代方案。
Cell-based therapies have become a powerful modality in cancer immunotherapy due to their innate cytotoxicity and ability to recognize tumor cells independently of antigen presentation. Among these, CAR-T and CAR-NK cells have shown promising anticancer effects in preclinical studies. In parallel, cell surface engineering using nanoparticles or biomaterials has emerged as a complementary strategy to modulate immune cell functions. Techniques such as hydrophobic insertion, covalent conjugation, glycoengineering, orthogonal chemistry, and host-guest interactions enable the presentation of ligands or immunomodulators directly on the cell surface. These nanoparticle-cell conjugates (NCC) allow for programmable interactions, controlled release, and enhanced tumor targeting. However, current conjugation methods often involve complex chemistries that may impair cell viability or are limited by cell-specific ligand-receptor interactions. This review outlines key aspects of NCC development: (1) nanoparticle design criteria, (2) NCC strategies, (3) limitations of direct conjugation, and (4) the role of AI in designing advanced cell-based therapies. Overall, NCC expands the therapeutic toolkit and offers a modular alternative to genetic engineering in next-generation cancer immunotherapy.
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