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黏液瘤病毒感染的 CAR-T 与 TCR-T 细胞诱导肿瘤细胞 autosis 以克服原发性和获得性耐药

英文原题:Induction of tumor cell autosis by myxoma virus-infected CAR-T and TCR-T cells to overcome primary and acquired resistance.

查看英文原题

Induction of tumor cell autosis by myxoma virus-infected CAR-T and TCR-T cells to overcome primary and acquired resistance.

PubMed 2022/08/25(内容时间) Cancer Cell Q1 · IF 56.1(JCR 2025)

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中文摘要

肿瘤特异性T细胞的细胞毒作用依赖其与肿瘤细胞接触,从而诱导经典的肿瘤细胞凋亡和细胞焦亡。然而,这些作用可能不足以引发实体瘤对过继细胞治疗的初始应答,也未必能防止肿瘤抗原逃逸所介导的获得性耐药。

本研究测试了表达嵌合抗原受体(CAR)或T细胞受体(TCR)的黏液瘤病毒(MYXV)感染肿瘤特异性T细胞(T-MYXV),这些细胞可将MYXV系统性递送至实体瘤,以克服原发性耐药。除T细胞诱导的凋亡和细胞焦亡外,CAR/TCR-T-MYXV细胞还可通过诱导一种特殊类型的细胞死亡——肿瘤细胞自噬性死亡(autosis)——清除肿瘤。

从机制上看,T细胞来源的干扰素(IFN)-蛋白激酶B(AKT)信号与MYXV诱导的M-T5-SKP-1-VPS34信号协同作用,触发强烈的肿瘤细胞自噬性死亡。CAR/TCR-T-MYXV诱导的自噬性死亡可形成强效旁观者杀伤,从而限制抗原逃逸。

本研究揭示了T细胞与MYXV之间意料之外的协同作用,可增强实体瘤细胞自噬性死亡并促进肿瘤清除。

展开英文摘要原文

Cytotoxicity of tumor-specific T cells requires tumor cell-to-T cell contact-dependent induction of classic tumor cell apoptosis and pyroptosis.

However, this may not trigger sufficient primary responses of solid tumors to adoptive cell therapy or prevent tumor antigen escape-mediated acquired resistance.

Here we test myxoma virus (MYXV)-infected tumor-specific T (T MYXV ) cells expressing chimeric antigen receptor (CAR) or T cell receptor (TCR), which systemically deliver MYXV into solid tumors to overcome primary resistance.

In addition to T cell-induced apoptosis and pyroptosis, tumor eradication by CAR/TCR-T MYXV cells is also attributed to tumor cell autosis induction, a special type of cell death.

Mechanistically, T cell-derived interferon (IFN )-protein kinase B (AKT) signaling synergizes with MYXV-induced M-T5-SKP-1-VPS34 signaling to trigger robust tumor cell autosis. CAR/TCR-T MYXV -elicited autosis functions as a type of potent bystander killing to restrain antigen escape.

We uncover an unexpected synergy between T cells and MYXV to bolster solid tumor cell autosis that reinforces tumor clearance.

论文信息

作者
Zheng N、Fang J、Xue G、Wang Z、Li X、Zhou M、Jin G、Rahman MM
第一作者单位
Department of Microbiology & Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA.United States
通讯作者单位
Department of Microbiology & Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA. Electronic address: ylu2@houstonmethodist.org.United States
文献类型
美国 NIH 资助研究 · 非美国政府资助研究
期刊
Cancer cell2022 Sep 12
原文标识
PubMed 36027915 · DOI 10.1016/j.ccell.2022.08.001