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:Neurotoxicity and cognitive outcomes in modern therapies for primary central nervous system lymphoma.
神经毒性因治疗方式而异。大剂量甲氨蝶呤为基础诱导后的巩固性全脑放疗(WBRT)仍与迟发性认知功能下降、白质损伤和脑萎缩关联最强。适合患者的HDC-ASCT和大剂量化疗后自体干细胞移植以及低剂量WBRT是有效的巩固策略,且认知功能保留更好。CAR T细胞疗法引入了通常可逆的独特炎症综合征,包括以刻板认知功能障碍为特征的免疫效应细胞相关神经毒性综合征(ICANS)和肿瘤炎症相关神经毒性(TIAN),后者可类似局灶性进展。双特异性抗体的神经毒性特征与CAR T细胞疗法相似,但ICANS发生率较低。使用神经心理测试、先进神经影像学、脑脊液生物标志物和循环肿瘤DNA的多模式监测可能提高诊断准确性。
原发性中枢神经系统淋巴瘤(PCNSL)生存期的改善,使迟发性治疗相关神经毒性作为功能结局和生活质量决定因素的重要性增加。本综述总结了当代各疗法神经认知结局的证据,并讨论了区分神经毒性与复发这一挑战。
神经毒性因治疗方式而异。大剂量甲氨蝶呤为基础诱导后的巩固性全脑放疗(WBRT)仍与迟发性认知功能下降、白质损伤和脑萎缩关联最强。适合患者的HDC-ASCT和大剂量化疗后自体干细胞移植以及低剂量WBRT是有效的巩固策略,且认知功能保留更好。CAR T细胞疗法引入了通常可逆的独特炎症综合征,包括以刻板认知功能障碍为特征的免疫效应细胞相关神经毒性综合征(ICANS)和肿瘤炎症相关神经毒性(TIAN),后者可类似局灶性进展。双特异性抗体的神经毒性特征与CAR T细胞疗法相似,但ICANS发生率较低。使用神经心理测试、先进神经影像学、脑脊液生物标志物和循环肿瘤DNA的多模式监测可能提高诊断准确性。总结:PCNSL未来的治疗进展应优先考虑神经毒性的预测、早期检测和预防,同时兼顾疾病控制。
PURPOSE OF REVIEW: Improved survival in primary CNS lymphoma (PCNSL) has increased the importance of delayed treatment-related neurotoxicity as a determinant of functional outcome and quality of life. This review summarizes contemporary evidence on neurocognitive outcomes across modern therapies and discusses the challenge of distinguishing neurotoxicity from relapse. RECENT FINDINGS: Neurotoxicity differs by treatment modality. Consolidation whole-brain radiotherapy (WBRT) after high-dose methotrexate-based induction remains most strongly associated with delayed cognitive decline, white matter injury, and cerebral atrophy. High-dose chemotherapy followed by autologous stem cell transplantation (HDC-ASCT) in fit patients and low-dose WBRT are effective consolidation strategies with better cognitive preservation. CAR T-cell therapy has introduced distinct inflammatory syndromes usually reversible, including immune effector cell-associated neurotoxicity syndrome (ICANS) characterized by stereotyped cognitive dysfunctions and tumor inflammation-associated neurotoxicity (TIAN), which can mimic focal progression. Bispecific antibodies' neurotoxicity profile resembles to that of CAR T-cell therapy with a lower rate of ICANS. Multimodal monitoring using neuropsychological testing, advanced neuroimaging, cerebrospinal fluid biomarkers, and circulating tumor DNA may improve diagnostic accuracy. SUMMARY: Future therapeutic progress in PCNSL should prioritize prediction, early detection, and prevention of neurotoxicity alongside disease control.
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