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:Epigenetic mechanisms and next-gen editing platforms in hematology: From molecular basis to therapeutic frontiers.
这些新一代方法共同预示着范式转变,为血液疾病带来更安全、更具动态性和可调控的干预手段。
表观遗传调控是造血过程的基础,影响干细胞命运、谱系定向和血液系统疾病的发生。近期技术创新使研究从传统基因编辑转向可编程、可逆的表观遗传调节,且无需改变DNA序列。本综述探讨表观遗传编辑平台的发展历程,从锌指蛋白和TALE到具有变革意义的CRISPR-dCas9系统,并介绍利用dCas12、dCas13和模块化RNA引导系统的下一代技术。通过将催化失活的CRISPR变体与染色质或RNA修饰酶融合,这些工具可精准调控基因表达和表转录组图谱。在血液学领域,这些进展提供了新的策略,可调节致癌基因、重新激活沉默的抑癌基因,并纠正白血病、淋巴瘤、骨髓增生异常综合征等恶性肿瘤中的表观遗传失调,以及β-地中海贫血和镰状细胞病等遗传性疾病中的异常。将表观遗传编辑整合至免疫工程,尤其是增强CAR-T和NK细胞疗法,进一步凸显了其日益增长的临床影响。总之,这些下一代方法预示着治疗模式的转变,可为血液疾病提供更安全、动态且可调控的干预措施。本综述介绍表观遗传编辑的现状和未来方向,并将其定位为精准血液病治疗的基石。
Epigenetic regulation is fundamental to hematopoiesis, influencing stem cell fate, lineage commitment, and the development of hematologic diseases. Recent technological innovations have transitioned from traditional genetic editing towards programmable, reversible epigenetic modulation without altering the DNA sequence. This review explores the evolution of epigenetic editing platforms, from zinc finger proteins and TALEs to the transformative CRISPR-dCas9 system, and introduces next-generation technologies leveraging dCas12, dCas13, and modular RNA-guided systems. By fusing catalytically inactive CRISPR variants with chromatin or RNA-modifying enzymes, these tools enable precise control of gene expression and epitranscriptomic landscapes. In hematology, these advances offer novel strategies to modulate oncogenes, reactivate silenced tumor suppressors, and correct epigenetic dysregulation in malignancies such as leukemia, lymphoma, and myelodysplastic syndromes, as well as in inherited disorders like -thalassemia and sickle cell disease. The integration of epigenetic editing into immune engineering, particularly in enhancing CAR-T and NK cell therapies, underscores its growing clinical impact. Together, these next-generation approaches herald a paradigm shift, enabling safer, more dynamic, and tunable interventions for blood disorders. This review highlights the current landscape and future directions of epigenetic editing, positioning it as a cornerstone of precision hematologic therapy.
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