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大型手术后单细胞的早期动态变化与随后的感染有关

Timothy Arthur Chandos Snow¹, Alessia V Waller¹, Richard Loye¹

¹Bloomsbury Institute of Intensive Care Medicine, University College London, London, United Kingdom.

Frontiers in immunology

|April 24, 2024

概括

大型手术会损害免疫功能,增加感染风险. 在手术后早期检测免疫变化,如改变的单细胞标记物,可以预测手术后感染.

科学领域:

免疫学免疫学免疫学
手术瘤学手术瘤学
关键护理医学关键护理医学

背景情况:

手术后感染是大手术后发病的一个重要原因.
大型手术对免疫功能和随后感染风险的影响尚不清楚.
手术后的早期免疫变化可能表明感染易感性增加.

研究的目的:

在大手术后24小时内评估循环免疫细胞表型和功能的变化.
识别与手术后感染的发展相关的早期免疫变化.
分析免疫细胞标记物和血清分析物,以了解免疫干扰.

主要方法:

对接受重大选择性手术的成年患者进行前性观察性研究.
手术前和手术后24小时采集的配对血液样本.
多参数流细胞计和ELISA用于评估免疫细胞功能和血清分析剂.

主要成果:

54%的患者患上了手术后感染.
在患有感染的患者中观察到单细胞CXCR4和CD80表达的减少.
增加的CD4+淋巴细胞IL-7受体表达和更高的术后单细胞计数与感染有关.

结论:

较低的单细胞化学反应标志物,更高的术后单细胞计数和减少的协同刺激信号与术后感染有关.
需要进一步的研究来探索机制,并开发治疗方法来逆转免疫缺陷.

关键词:

免疫功能免疫功能免疫功能重症监护病房的重症监护病房是一个重症监护病房.淋巴细胞淋巴细胞.一个单细胞单细胞.手术后感染的情况.

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