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Brief report “Personalized cytokine-directed therapy with tocilizumab for refractory immune checkpoint inhibitor-related cholangiohepatitis”
Journal of Thoracic Oncology ( IF 21.0 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.jtho.2020.09.007
Laura Moi 1 , Hasna Bouchaab 2 , Nuria Mederos 2 , Tu Nguyen-Ngoc 2 , Matthieu Perreau 3 , Craig Fenwick 1 , Julien Vaucher 4 , Christine Sempoux 5 , Solange Peters 6 , Michel Obeid 7
Affiliation  

INTRODUCTION For patients with corticosteroid (CS)-refractory immune checkpoint inhibitor-related cholangiohepatitis (irCH), no consensus exists regarding treatment, and outcomes remain poor. We evaluated the possibility of personalized treatment according to the patient's cytokine profile and the immunohistopathologically assessment of the predominant immune infiltrate type of liver tisssue. METHODS NSCLCs with CS-refractory irCH were analyzed by immunohistochemistry (IHC) of liver biopsy, serum cytokine panel, and CyTOF assessment of PBMC immune cell monitoring. RESULTS A total of three consecutives patients with irCH were identified. We found a predominant T-cell infiltrate and an IFN-γ/Th1 proinflammatory cytokine profile. Here, we report for the first time that a T-cell-targeted therapy with the IL-6 receptor-neutralizing antibody tocilizumab (TCZ), which inhibits signaling downstream of interferon-γ (IFN-γ) and several other JAK-dependent cytokines, is an effective single cytokine-directed therapy for CS-refractory irCH. Three patients with severe and CS-refractory irCH who were treated with TCZ showed persistent clinical and biological remission. CONCLUSION Dysregulation of the IL-6/T-cell axis may contribute to the pathogenesis of CS-refractory irCH. Our observations suggest that IL-6 blockade appears to show promise in the treatment of CS-refractory irCH. The results from our three patients need to be confirmed in a larger patient population.

中文翻译:

简要报告“使用托珠单抗治疗难治性免疫检查点抑制剂相关胆管肝炎的个性化细胞因子导向疗法”

引言 对于皮质类固醇 (CS) 难治性免疫检查点抑制剂相关胆管肝炎 (irCH) 患者,关于治疗没有共识,结果仍然很差。我们根据患者的细胞因子谱和主要免疫浸润类型肝组织的免疫组织病理学评估评估了个性化治疗的可能性。方法通过肝活检的免疫组织化学 (IHC)、血清细胞因子面板和 PBMC 免疫细胞监测的 CyTOF 评估分析具有 CS 难治性 irCH 的 NSCLC。结果 共确定了 3 名连续的 irCH 患者。我们发现了主要的 T 细胞浸润和 IFN-γ/Th1 促炎细胞因子谱。这里,我们首次报告了使用 IL-6 受体中和抗体托珠单抗 (TCZ) 的 T 细胞靶向治疗,该抗体抑制干扰素-γ (IFN-γ) 和其他几种 JAK 依赖性细胞因子的下游信号传导,是一种针对 CS 难治性 irCH 的有效单一细胞因子导向疗法。三名接受 TCZ 治疗的重度和 CS 难治性 irCH 患者显示出持续的临床和生物学缓解。结论 IL-6/T 细胞轴的失调可能有助于 CS 难治性 irCH 的发病机制。我们的观察表明,IL-6 阻断似乎在治疗 CS 难治性 irCH 中显示出前景。我们三名患者的结果需要在更大的患者群体中得到证实。是一种针对 CS 难治性 irCH 的有效单一细胞因子导向疗法。三名接受 TCZ 治疗的重度和 CS 难治性 irCH 患者显示出持续的临床和生物学缓解。结论 IL-6/T 细胞轴的失调可能有助于 CS 难治性 irCH 的发病机制。我们的观察表明,IL-6 阻断似乎在治疗 CS 难治性 irCH 中显示出前景。我们三名患者的结果需要在更大的患者群体中得到证实。是一种针对 CS 难治性 irCH 的有效单一细胞因子导向疗法。三名接受 TCZ 治疗的重度和 CS 难治性 irCH 患者显示出持续的临床和生物学缓解。结论 IL-6/T 细胞轴的失调可能有助于 CS 难治性 irCH 的发病机制。我们的观察表明,IL-6 阻断似乎在治疗 CS 难治性 irCH 中显示出前景。我们三名患者的结果需要在更大的患者群体中得到证实。我们的观察表明,IL-6 阻断似乎在治疗 CS 难治性 irCH 中显示出前景。我们三名患者的结果需要在更大的患者群体中得到证实。我们的观察表明,IL-6 阻断似乎在治疗 CS 难治性 irCH 中显示出前景。我们三名患者的结果需要在更大的患者群体中得到证实。
更新日期:2021-02-01
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