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Emapalumab 用于 CD19 靶向 CAR-T 后免疫效应细胞相关噬血细胞性淋巴组织细胞增生症样综合征的 2 例 B-ALL 患者:临床与生物标志物相关性

英文原题:Emapalumab for Immune Effector Cell-Associated Hemophagocytic Lymphohistiocytosis-Like Syndrome Following CD19-Directed CAR-T in Two Patients With B-ALL: Clinical and Biomarker Correlates.

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Emapalumab for Immune Effector Cell-Associated Hemophagocytic Lymphohistiocytosis-Like Syndrome Following CD19-Directed CAR-T in Two Patients With B-ALL: Clinical and Biomarker Correlates.

PubMed 2026/05/14(内容时间) Pediatr Blood Cancer Q2 · IF 2.4(JCR 2025)

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中文摘要

免疫效应细胞相关噬血细胞性淋巴组织细胞增多症样综合征(IEC-HS)是CAR-T 细胞治疗后危及生命的高炎症毒性,与细胞因子释放综合征(CRS)和神经毒性不同。在一项单中心回顾性队列研究中,2023 年 11 月至 2025 年 4 月接受 tisagenlecleucel 治疗的 12 名复发/难治性 B 急性淋巴细胞白血病(B-ALL)儿童及青年患者中,有 2 人(17%)在 CRS 消退后发生 IEC-HS,表现为复发性发热、凝血障碍、肝功能异常、血细胞减少,以及 CXCL9、IL-18 和可溶性 C5b-9 显著升高。使用 emapalumab 治疗后,临床表现和生物标志物迅速改善。这些发现支持 IEC-HS 是一种由干扰素-γ 驱动的综合征,并提示靶向阻断 IFN-γ 可能是有效的治疗策略。

展开英文摘要原文

Immune effector cell-associated hemophagocytic lymphohistiocytosis-like syndrome (IEC-HS) is a life-threatening hyperinflammatory toxicity distinct from cytokine release syndrome (CRS) and neurotoxicity following chimeric antigen receptor T-cell (CAR-T) therapy.

In a single-institution retrospective cohort of pediatric and young adult patients with relapsed or refractory acute B-lymphoblastic leukemia (B-ALL) treated with tisagenlecleucel between November 2023 and April 2025, two of 12 patients (17%) developed IEC-HS after CRS resolution, marked by recurrent fever, coagulopathy, hepatic dysfunction, cytopenias, and profound elevations in CXCL9, IL-18, and soluble C5b-9. Treatment with emapalumab led to rapid clinical and biomarker improvement.

These findings support IEC-HS as an interferon- -driven syndrome and suggest targeted IFN- blockade as a potentially effective therapeutic strategy.

论文信息

作者
Galletta TJ、Rubinstein JD、Dandoy CE、Khoury R、Faulhaber A、Phillips CL、Krupski C
第一作者单位
Division of Oncology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.United States
通讯作者单位
Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.United States
文献类型
病例报告
期刊
Pediatric blood & cancer2026 Aug
原文标识
PubMed 42136039 · DOI 10.1002/1545-5017.70406