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:CAR-T cell therapy for glioblastoma: insight from mathematical modeling.
CAR-T cell therapy for glioblastoma: insight from mathematical modeling.
本研究提出了一个针对胶质母细胞瘤CAR-T细胞治疗的综合性建模框架,强调了给药方案和耐药动态的重要性。研究结果为优化治疗策略以改善患者预后提供了有价值的指导。
胶质母细胞瘤是一种罕见的侵袭性脑肿瘤,以高治疗耐药性、预后差和治疗选择有限为特征。新兴的免疫疗法,特别是嵌合抗原受体(CAR)T细胞疗法,为标准化疗提供了有前景的替代方案。然而,将CAR-T细胞策略从血液系统恶性肿瘤应用于胶质母细胞瘤等实体瘤面临重大挑战。
我们扩展了现有数学模型,以研究CAR-T细胞疗法治疗胶质母细胞瘤的动态过程。模拟基于受临床试验启发的场景,靶向IL13R 2、HER2和EGFRvIII抗原,评估单次给药和周期性给药方案。模型纳入了关键生物学过程,包括肿瘤生长、CAR-T细胞增殖延迟和耐药机制。
周期性CAR-T细胞给药在减轻肿瘤负荷方面优于单次给药策略。将耐药性和治疗延迟纳入模型,为复发动力学和治疗持久性提供了关键见解。
INTRODUCTION: Glioblastoma is a rare, aggressive brain tumor marked by high therapeutic resistance, poor prognosis, and limited treatment options. Emerging immunotherapies, particularly Chimeric Antigen Receptor (CAR) T-cell therapy, offer promising alternatives to standard care. However, adapting CAR-T cell strategies from hematologic malignancies to solid tumors like glioblastoma presents substantial challenges. METHODS: We extended existing mathematical models to investigate glioblastoma treatment dynamics with CAR-T cell therapy. Simulations were based on clinical trial-inspired scenarios targeting IL13R 2, HER2, and EGFRvIII antigens, assessing both single-dose and cyclic dosing regimens. The models incorporated key biological processes, including tumor growth, CAR-T cell proliferation delays, and resistance mechanisms. RESULTS: Cyclic CAR-T cell administration outperformed single-dose strategies in reducing tumor burden. Incorporating resistance and treatment delays into the models provided critical insights into relapse dynamics and therapeutic durability. DISCUSSION: This study presents a comprehensive modeling framework for CAR-T cell therapy in glioblastoma, highlighting the importance of dosing regimens and resistance dynamics. The findings offer valuable guidance for optimizing therapeutic strategies to enhance patient outcomes.
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