A Practical Model Evaluating Antiviral Cytokines by Natural Killer Cells in Treatment Naïve Patients with Chronic Hepatitis B Virus Infection.

A Practical Model Evaluating Antiviral Cytokines by Natural Killer Cells in Treatment Naïve Patients with Chronic Hepatitis B Virus Infection.
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评估自然杀伤细胞在慢性乙型肝炎病毒感染初治患者中的抗病毒细胞因子的实用模型

DOI:
10.1038/s41598-017-06192-1
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发表时间:
2017-07-19
期刊:
影响因子:
4.6
通讯作者:
Huang Y
Huang Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Li X;Gu Y;Guo X;Gu L;Zhou L;Wu X;Wang X;Stamataki Z;Huang Y

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自然杀伤(NK)细胞在乙型肝炎感染期间的抗病毒免疫中起主要作用,特别是在T细胞功能严重受损的未经治疗的患者中。NK细胞产生的细胞因子干扰素(IFN)-γ和肿瘤坏死因子(TNF)-α是重要的抗病毒因子。然而,缺乏可量化的模型来评估NK细胞对细胞因子的反应。在这项研究中,几乎一半(47.9%)超出治疗标准的患者具有高细胞因子活性,尽管低于抗病毒治疗的推荐水平(78.2%)。此外,我们建立了一个模型,低水平的HBsAg、HBcAb和白蛋白和高纤维化值预测NK细胞产生强抗病毒细胞因子。根据多变量模型得出的截止评分(0.361),免疫活性(IA)、免疫耐受(IT)、免疫无活性(IC)和灰色地带(GZ)分别为67%、8%、92%和74%的患者表现出NK细胞产生的抗病毒细胞因子活性。这些结果表明,那些拥有激活细胞因子反应超过当前治疗标准的人可能对抗病毒治疗的时机有潜在的影响,以实现更好的病毒控制。
Natural killer (NK) cells play a major role in anti-viral immunity as first line defense during hepatitis B infection, particularly in untreated patients whose T cells functions are profoundly impaired. Cytokine interferon (IFN)-γ and tumor necrosis factor (TNF)-α produced by NK cells are important anti-viral factors. However, there is lack of a quantifiable model to evaluate cytokine responses by NK cells. In this study, almost half of the patients (47.9%) beyond treatment criteria had high cytokine activity, although it was lower than those recommended for antiviral therapy (78.2%). Moreover, we developed a model that low levels of HBsAg, HBcAb, and albumin and high fibrosis values predicted strong antiviral cytokine production by NK cells. Based on the cut-off score (0.361) obtained from the multivariable model, patients with 67%, 8%, 92%, and 74% in immune-active (IA), immune-tolerant (IT), immune-inactive (IC), and grey zone (GZ), respectively, showed active antiviral cytokines produced by NK cells. These results suggest that those who possess activated cytokine responses beyond the current treatment criteria may have potential implications for the timing of antiviral therapy to achieve better virus control.
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期刊: HEPATOLOGY
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影响因子: 5.4
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