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Flow cytometric evaluation of the neutrophil compartment in COVID‐19 at hospital presentation: A normal response to an abnormal situation
Journal of Leukocyte Biology ( IF 3.6 ) Pub Date : 2020-12-22 , DOI: 10.1002/jlb.5cova0820-520rrr
Roy Spijkerman 1, 2, 3 , Suzanne H Bongers 2, 3 , Bas J J Bindels 1, 3 , Gerjen H Tinnevelt 4 , Giulio Giustarini 1, 3 , Nikita K N Jorritsma 1, 3 , Wiebe Buitenwerf 1, 3 , Daan E J van Spengler 1, 3 , Eveline M Delemarre 3 , Stefan Nierkens 3 , Harriët M R van Goor 5 , Jeroen J Jansen 4 , Nienke Vrisekoop 1, 3 , Falco Hietbrink 2 , Luke P H Leenen 2 , Karin A H Kaasjager 5 , Leo Koenderman 1, 3 , 1
Affiliation  

Coronavirus disease 2019 (COVID‐19) is a rapidly emerging pandemic disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2). Critical COVID‐19 is thought to be associated with a hyper‐inflammatory process that can develop into acute respiratory distress syndrome, a critical disease normally mediated by dysfunctional neutrophils. This study tested the hypothesis whether the neutrophil compartment displays characteristics of hyperinflammation in COVID‐19 patients. Therefore, a prospective study was performed on all patients with suspected COVID‐19 presenting at the emergency room of a large academic hospital. Blood drawn within 2 d after hospital presentation was analyzed by point‐of‐care automated flow cytometry and compared with blood samples collected at later time points. COVID‐19 patients did not exhibit neutrophilia or eosinopenia. Unexpectedly neutrophil activation markers (CD11b, CD16, CD10, and CD62L) did not differ between COVID‐19‐positive patients and COVID‐19‐negative patients diagnosed with other bacterial/viral infections, or between COVID‐19 severity groups. In all patients, a decrease was found in the neutrophil maturation markers indicating an inflammation‐induced left shift of the neutrophil compartment. In COVID‐19 this was associated with disease severity.

中文翻译:

医院就诊时对 COVID-19 中性粒细胞室的流式细胞术评估:对异常情况的正常反应

2019 年冠状病毒病 (COVID-19) 是由严重急性呼吸系统综合症冠状病毒 2 (SARS-CoV-2) 引起的一种迅速出现的大流行病。严重的 COVID-19 被认为与过度炎症过程有关,该过程可发展为急性呼吸窘迫综合征,这是一种通常由功能失调的中性粒细胞介导的危重疾病。本研究检验了 COVID-19 患者中性粒细胞室是否表现出过度炎症特征的假设。因此,对在大型学术医院急诊室就诊的所有疑似 COVID-19 患者进行了一项前瞻性研究。入院后 2 天内抽取的血液通过床旁自动流式细胞术进行分析,并与稍后时间点收集的血液样本进行比较。COVID-19 患者未表现出中性粒细胞增多或嗜酸粒细胞减少。出乎意料的是,中性粒细胞激活标志物(CD11b、CD16、CD10 和 CD62L)在诊断为其他细菌/病毒感染的 COVID-19 阳性患者和 COVID-19 阴性患者之间,或在 COVID-19 严重程度组之间没有差异。在所有患者中,发现中性粒细胞成熟标志物减少,表明炎症引起的中性粒细胞室左移。在 COVID-19 中,这与疾病的严重程度有关。中性粒细胞成熟标志物减少表明炎症引起的中性粒细胞室左移。在 COVID-19 中,这与疾病的严重程度有关。中性粒细胞成熟标志物减少表明炎症引起的中性粒细胞室左移。在 COVID-19 中,这与疾病的严重程度有关。
更新日期:2020-12-23
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