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首页> 外文期刊>Infection and immunity >Neutrophils Are a Source of Gamma Interferon during Acute Salmonella enterica Serovar Typhimurium Colitis
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Neutrophils Are a Source of Gamma Interferon during Acute Salmonella enterica Serovar Typhimurium Colitis

机译:中性粒细胞是急性肠炎沙门氏菌血清鼠伤寒结肠炎期间γ干扰素的来源。

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Gamma interferon (IFN-γ) is an important driver of intestinal inflammation during colitis caused by Salmonella enterica serovar Typhimurium. Here we used the mouse colitis model to investigate the cellular sources of IFN-γ in the cecal mucosa during the acute phase of an S. Typhimurium infection. While IFN-γ staining was detected in T cells, NK cells, and inflammatory monocytes at 2 days after infection, the majority of IFN-γ-positive cells in the cecal mucosa were neutrophils. Furthermore, neutrophil depletion blunted mucosal Ifng expression and reduced the severity of intestinal lesions during S. Typhimurium infection. We conclude that neutrophils are a prominent cellular source of IFN-γ during the innate phase of S. Typhimurium-induced colitis.
机译:γ干扰素(IFN-γ)是肠炎沙门氏菌血清型鼠伤寒引起的结肠炎期间肠道炎症的重要驱动因素。在这里,我们使用小鼠结肠炎模型研究了 S 急性期盲肠粘膜中IFN-γ的细胞来源。鼠伤寒感染。感染后第2天在T细胞,NK细胞和炎性单核细胞中检测到IFN-γ染色,但盲肠粘膜中大多数IFN-γ阳性细胞是嗜中性粒细胞。此外,中性粒细胞耗竭削弱了粘膜 Ifng 的表达,并降低了 S 期间肠道病变的严重程度。鼠伤寒感染。我们得出结论,在 S 的固有阶段,嗜中性粒细胞是IFN-γ的重要细胞来源。鼠伤寒引起的结肠炎。

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