Study of the SARS-CoV-2-specific immune T-cell responses in COVID-19-positive cancer patients.

Study of the SARS-CoV-2-specific immune T-cell responses in COVID-19-positive cancer patients.
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DOI:
10.1016/j.ejca.2021.03.033
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发表时间:
2021-06
期刊:
European journal of cancer (Oxford, England : 1990)
影响因子:
--
通讯作者:
Kroemer M
Kroemer M
中科院分区:
其他
文献类型:
--
作者:
Mansi L;Spehner L;Daguindau E;Bouiller K;Almotlak H;Stein U;Bouard A;Kim S;Klajer E;Jary M;Meynard G;Vienot A;Nardin C;Bazan F;Lepiller Q;Westeel V;Adotévi O;Borg C;Kroemer M

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癌症患者被认为极易受到 COVID-19 大流行的影响。然而,延迟癌症特异性治疗可能会对生存产生有害影响。化疗或癌症相关微环境的潜在抑制作用引发了癌症患者的免疫系统如何响应 SARS-CoV-2 病毒的问题。我们于 2020 年 4 月启动了一项名为 COV-CREM (NCT04365322) 的前瞻性单中心试验。该试验的主要目的是评估感染患者对 SARS-CoV-2 的特异性免疫反应的强度和多样性。在这项研究中,我们发现,与没有癌症病史的患者 (n = 29) 中观察到的情况一样,暴露于 SARS-CoV-2 的癌症患者(28 例实体瘤、11 例血液恶性肿瘤)产生了高比例的特异性抗体。然而,我们的结果强调,T 细胞缺乏针对 SARS-CoV-2 病毒的 CoV-N、M 和 S 蛋白的反应,这表明癌症患者未能建立保护性 T 细胞免疫。然而,SARS-CoV-2 感染并没有损害已建立的免疫记忆,因为癌症患者对常见病毒的特异性反应并未受到阻碍。鉴于当前 COVID-19 大流行的严重性和未知的演变,将癌症患者纳入疫苗接种计划至关重要。
Cancer patients are considered highly vulnerable to the COVID-19 pandemic. However, delaying cancer-specific therapies could have a deleterious effect on survival. The potential suppressive effects of chemotherapies or cancer-related microenvironment raised the question on how cancer patients’ immune system responds to SARS-CoV-2 virus. We have started a prospective monocentric trial entitled COV-CREM (NCT04365322) in April 2020. The primary objective of the trial was to assess specific immune response's intensity and diversity to SARS-CoV-2 in infected patients. In this study, we showed that cancer patients (28 solid tumours, 11 haematological malignancies) exposed to SARS-CoV-2 produced a high rate of specific antibodies, as observed in patients without a cancer history (n = 29). However, our results highlight a lack in the generation of T-cell responses against CoV–N, M and S proteins from the SARS-CoV-2 virus, suggesting that cancer patients failed to mount a protective T-cell immunity. Nevertheless, SARS-CoV-2 infection did not impair established immune memory since specific responses against common viruses were not hampered in cancer patients. Given the severity and the unknown evolution of the ongoing COVID-19 pandemic, it is of fundamental importance to integrate cancer patients in vaccination programs.
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