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脓毒症患者吞噬体粒细胞中的活性氧诱导细菌的SOS反应。

Phagosomal granulocytic ROS in septic patients induce the bacterial SOS response.

作者信息

Chollet Stecy, Hernandez Padilla Ana Catalina, Daix Thomas, Gaschet Margaux, François Bruno, Piguet Christophe, Gachard Nathalie, Da Re Sandra, Jeannet Robin, Ploy Marie-Cécile

机构信息

University Limoges, Inserm, CHU Limoges, RESINFIT, U 1092, F-87000 Limoges, France.

CHU Limoges, Service de Réanimation Polyvalente, Limoges, France.

出版信息

iScience. 2024 Apr 26;27(6):109825. doi: 10.1016/j.isci.2024.109825. eCollection 2024 Jun 21.

DOI:10.1016/j.isci.2024.109825
PMID:38799552
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11126768/
Abstract

Septic patients with worst clinical prognosis have increased circulating immature granulocytes (IG), displaying limited phagocytosis and reactive oxygen species (ROS) production. Here, we developed an model of incubation of human granulocytes, from septic patients or healthy donors, with . We showed that the ROS production in Sepsis-IG is lower due to decreased activation and protein expression of the NADPH oxidase complex. We also demonstrated that the low level of ROS production and lower phagocytosis of IG in sepsis induce the bacterial SOS response, leading to the expression of the SOS-regulated quinolone resistance gene . Without antimicrobial pressure, the sepsis immune response alone may promote antibiotic resistance expression.

摘要

临床预后最差的脓毒症患者循环中的未成熟粒细胞(IG)增多,其吞噬作用和活性氧(ROS)生成受限。在此,我们建立了一个将脓毒症患者或健康供体的人粒细胞与[具体物质未给出]一起孵育的模型。我们发现,脓毒症-IG中的ROS生成较低,这是由于NADPH氧化酶复合物的激活和蛋白表达降低所致。我们还证明,脓毒症中IG的低水平ROS生成和较低吞噬作用会诱导细菌的SOS反应,导致SOS调控的喹诺酮耐药基因[具体基因未给出]的表达。在没有抗菌压力的情况下,仅脓毒症免疫反应就可能促进抗生素耐药性的表达。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/1cd3927b5a12/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/ed2493cabfdd/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/8a334d1ee321/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/1974ab2f6bcf/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/19f556804748/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/1cd3927b5a12/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/ed2493cabfdd/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/8a334d1ee321/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/1974ab2f6bcf/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/19f556804748/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e77c/11126768/1cd3927b5a12/gr4.jpg

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本文引用的文献

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Global burden of bacterial antimicrobial resistance in 2019: a systematic analysis.2019 年全球细菌对抗菌药物耐药性的负担:系统分析。
Lancet. 2022 Feb 12;399(10325):629-655. doi: 10.1016/S0140-6736(21)02724-0. Epub 2022 Jan 19.
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The Antibody Receptor Fc Gamma Receptor IIIb Induces Calcium Entry Transient Receptor Potential Melastatin 2 in Human Neutrophils.抗体受体 Fc 受体 IIIb 诱导人嗜中性粒细胞中的钙内流瞬态受体电位 melastatin 2。
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Role of the SOS Response in the Generation of Antibiotic Resistance .
SOS 响应在抗生素耐药性产生中的作用。
Antimicrob Agents Chemother. 2021 Jun 17;65(7):e0001321. doi: 10.1128/AAC.00013-21.
4
The Critical Role of Cell Metabolism for Essential Neutrophil Functions.细胞代谢对于中性粒细胞基本功能的关键作用。
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Sepsis trends: increasing incidence and decreasing mortality, or changing denominator?脓毒症趋势:发病率上升与死亡率下降,还是分母变化?
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Low Density Granulocytes in ANCA Vasculitis Are Heterogenous and Hypo-Responsive to Anti-Myeloperoxidase Antibodies.抗中性粒细胞胞浆抗体相关性血管炎患者的低密度粒细胞呈异质性且对髓过氧化物酶抗体低反应。
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NADPH oxidase activation in neutrophils: Role of the phosphorylation of its subunits.中性粒细胞中 NADPH 氧化酶的激活:其亚基磷酸化的作用。
Eur J Clin Invest. 2018 Nov;48 Suppl 2:e12951. doi: 10.1111/eci.12951. Epub 2018 Jun 3.
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