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Assessment of vaccination strategies against highly pathogenic avian influenza in China
Honglei SUN,Jinhua LIU
《农业科学与工程前沿(英文)》 2014年 第1卷 第4期 页码 277-281 doi: 10.15302/J-FASE-2014036
关键词: highly pathogenic avian influenza vaccine vaccination control
Seroprevalence of influenza viruses in Shandong, Northern China during the COVID-19 pandemic
《医学前沿(英文)》 2022年 第16卷 第6期 页码 984-990 doi: 10.1007/s11684-022-0930-5
关键词: influenza virus seroprevalence antibody COVID-19 cross-sectional study
Innate and adaptive T cells in influenza disease
null
《医学前沿(英文)》 2018年 第12卷 第1期 页码 34-47 doi: 10.1007/s11684-017-0606-8
Influenza is a major global health problem, causing infections of the respiratory tract, often leading to acute pneumonia, life-threatening complications and even deaths. Over the last seven decades, vaccination strategies have been utilized to protect people from complications of influenza, especially groups at high risk of severe disease. While current vaccination regimens elicit strain-specific antibody responses, they fail to generate cross-protection against seasonal, pandemic and avian viruses. Moreover, vaccines designed to generate influenza-specific T-cell responses are yet to be optimized. During natural infection, viral replication is initially controlled by innate immunity before adaptive immune responses (T cells and antibody-producing B cells) achieve viral clearance and host recovery. Adaptive T and B cells maintain immunological memory and provide protection against subsequent infections with related influenza viruses. Recent studies also shed light on the role of innate T-cells (MAIT cells, gd T cells, and NKT cells) in controlling influenza and linking innate and adaptive immune mechanisms, thus making them attractive targets for vaccination strategies. We summarize the current knowledge on influenza-specific innate MAIT and gd T cells as well as adaptive CD8+ and CD4+ T cells, and discuss how these responses can be harnessed by novel vaccine strategies to elicit cross-protective immunity against different influenza strains and subtypes.
关键词: influenza innate T cells CD4+ and CD8+ T cells vaccination
Research progress on human infection with avian influenza H7N9
Xiaoxin Wu, Lanlan Xiao, Lanjuan Li
《医学前沿(英文)》 2020年 第14卷 第1期 页码 8-20 doi: 10.1007/s11684-020-0739-z
Compiling of comprehensive data of human infections with novel influenza A (H7N9) virus
null
《医学前沿(英文)》 2013年 第7卷 第3期 页码 275-276 doi: 10.1007/s11684-013-0285-z
Yulu Wang, Dan Hu, Yanling Wu, Tianlei Ying
《医学前沿(英文)》 2020年 第14卷 第2期 页码 149-159 doi: 10.1007/s11684-020-0764-y
关键词: influenza virus neutralizing antibody hemagglutinin globular head region trimeric interface
Global influenza surveillancewith Laplacianmultidimensional scaling
Xi-chuan ZHOU,Fang TANG,Qin LI,Sheng-dong HU,Guo-jun LI,Yun-jian JIA,Xin-ke LI,Yu-jie FENG
《信息与电子工程前沿(英文)》 2016年 第17卷 第5期 页码 413-421 doi: 10.1631/FITEE.1500356
Avian influenza A: an avian influenza virus from low pathogenic to highly pathogenic
William J. Liu, Haixia Xiao, Lianpan Dai, Di Liu, Jianjun Chen, Xiaopeng Qi, Yuhai Bi, Yi Shi, George F. Gao, Yingxia Liu
《医学前沿(英文)》 2021年 第15卷 第4期 页码 507-527 doi: 10.1007/s11684-020-0814-5
关键词: H7N9 HPAIV epidemiology clinical features pathogenesis hemagglutinin immunity vaccine
null
《医学前沿(英文)》 2017年 第11卷 第4期 页码 471-479 doi: 10.1007/s11684-017-0602-z
Several universal influenza virus vaccine candidates based on eliciting antibodies against the hemagglutinin stalk domain are in development. Typically, these vaccines induce responses that target group 1 or group 2 hemagglutinins with little to no cross-group reactivity and protection. Similarly, the majority of human anti-stalk monoclonal antibodies that have been isolated are directed against group 1 or group 2 hemagglutinins with very few that bind to hemagglutinins of both groups. Here we review what is known about the human humoral immune response to vaccination and infection with H7 subtype influenza viruses on a polyclonal and monoclonal level. It seems that unlike vaccination with H5 hemagglutinin, which induces antibody responses mostly restricted to the group 1 stalk domain, H7 exposure induces both group 2 and cross-group antibody responses. A better understanding of this phenomenon and the underlying mechanisms might help to develop future universal influenza virus vaccine candidates.
关键词: universal influenza virus vaccine hemagglutinin stalk H7N9
Jiao HU,Xiufan LIU
《农业科学与工程前沿(英文)》 2016年 第3卷 第1期 页码 11-24 doi: 10.15302/J-FASE-2016092
关键词: avian influenza virus H9N2 H5N1 novel viruses public health
null
《医学前沿(英文)》 2013年 第7卷 第3期 页码 333-344 doi: 10.1007/s11684-013-0275-1
This study reports the first death caused by a novel avian influenza A (H7N9) virus in Zhejiang Province, China. The patient had chronic hepatitis B and history of exposure to poultry. The patient initially complained of diarrhea and influenza-like symptoms on March 7 and 14 respectively. The disease progressed to severe pneumonia, sustained hypoxia, and coagulation abnormalities. The patient died on March 27 because of respiratory failure, multiple organ failure, and disseminated intravascular coagulation without oseltamivir treatment. This H7N9 virus from Zhejiang is highly similar to isolates obtained from Shanghai, Jiangsu, Anhui, etc. Analysis of hemagglutinin, neuramidinase, and matrix genes indicated that the isolates share the same avian origin, have low virulence, and are sensitive to oseltamivir, but are resistant to adamantine. Only the isolate that caused the fatality exhibited substitution of Q226I in the HA gene, which indicates a potentially enhanced human affinity. The secondary transmission rate was 1.6% (2/125). Only two health workers presented with influenza-like symptoms, and they subsequently tested negative for H7N9 RNA. In conclusion, underlying disease, late diagnosis, and untimely antiviral treatment are possible high-risk factors for infections and death caused by the low-pathogenicity avian influenza A (H7N9). Person-to-person transmission of the H7N9 virus was not detected among close contacts, but such transmission should be investigated in the future. Expanding and enhancing surveillance will help in the early discovery and diagnosis of suspected cases, which will reduce the number of severe cases and deaths.
关键词: avian influenza A (H7N9) virus epidemiology contacts person-to-person transmission
Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management
Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath, Kwok-Yung YUEN MD,
《医学前沿(英文)》 2010年 第4卷 第2期 页码 147-156 doi: 10.1007/s11684-010-0030-9
关键词: influenza A virus H1N1 subtype pandemic pathogenesis virulence factors immunity management antiviral
COVID-19大流行期间流感活动呈“断崖式”下降——佩戴口罩、人员流动变化及SARS-CoV-2干扰的作用 Article
韩莎莎, 张婷, 吕岩, 赖圣杰, 戴佩希, 郑建东, 杨维中, 周晓华, 冯录召
《工程(英文)》 2023年 第21卷 第2期 页码 195-202 doi: 10.1016/j.eng.2021.12.011
一般情况下,每年冬季是季节性流感高发季节,但在当前新冠病毒肺炎(COVID-19)大流行期间,全球季节性流感活动呈“断崖式”下降。为应对即将到来的流感季节,亟需弄清这种前所未有的流感低水平流行的原因。本文中,我们探索了一种国家特异性推理模型,利用该模型估计中国、英国和美国这三个国家中佩戴口罩、人员流动变化(国际和国内)以及严重急性呼吸综合征冠状病毒2 型(SARS-CoV-2)干扰的影响。结果发现,在这些地区增加一周佩戴口罩的干预措施,流感活动可减少11.3%~35.2%。实施一周的限制人员流动措施对国际(流感活动可减少1.7%~6.5%)和国内社区(流感活动可减少1.6%~2.8%)的影响较小。2020—2021 年,仅佩戴口罩这一项干预措施就可使阳性率下降13.3%~19.8%。仅人员流动变化可使阳性率降低5.2%~14.0%,其中,79.8%~98.2%归因于国际旅行限制。SARS-CoV-2 干扰仅在2019—2020 年具有统计学显著效应。中国北方地区及英国的阳性百分比分别降低7.6%(2.4~14.4)和10.2%(7.2~13.6)。探索所得出的结果对了解非药物干预措施和其他呼吸系统疾病背景下的流感演变有一定意义,有助于制定卫生政策,并可为公共卫生措施的个性化设计提供信息。
关键词: 流行性感冒 佩戴口罩 限制人员流动 SARS-CoV-2干扰 非药物干预措施
从H1N1血凝素序列提取的沙门氏菌传递的COBRA-HA1抗原对甲型流感亚型产生广谱保护作用 Article
Ram Prasad Aganja, Amal Senevirathne, Chandran Sivasankar, John Hwa Lee
《工程(英文)》 2024年 第32卷 第1期 页码 42-57 doi: 10.1016/j.eng.2023.08.001
A universal vaccine is in high demand to address the uncertainties of antigenic drift and the reduced effectiveness of current influenza vaccines. In this study, a strategy called computationally optimized broadly reactive antigen (COBRA) was used to generate a consensus sequence of the hemagglutinin globular head portion (HA1) of influenza virus samples collected from 1918 to 2021 to trace evolutionary changes and incorporate them into the designed constructs. Constructs carrying different HA1 regions were delivered into eukaryotic cells by Salmonella-mediated bactofection using a Semliki Forest virus RdRp-dependent eukaryotic expression system, pJHL204. Recombinant protein expression was confirmed by Western blot and immunofluorescence assays. Mice immunized with the designed constructs produced a humoral response, with a significant increase in immunoglobulin G (IgG) levels, and a cell-mediated immune response, including a 1.5-fold increase in CD4+ and CD8+ T cells. Specifically, constructs #1 and #5 increased the production of interferon-γ (IFN-γ) producing CD4+ and CD8+ T cells, skewing the response toward the T helper type 1 cell (Th1) pathway. Additionally, interleukin-4 (IL-4)-producing T cells were upregulated 4-fold. Protective efficacy was demonstrated, with up to 4-fold higher production of neutralizing antibodies and a hemagglutination inhibition titer > 40 against the selected viral strains. The designed constructs conferred a broadly protective immune response, resulting in a notable reduction in viral titer and minimal inflammation in the lungs of mice challenged with the influenza A/PR8/34, A/Brisbane/59/2007, A/California/07/2009, KBPV VR-92, and NCCP 43021 strains. This discovery revolutionizes influenza vaccine design and delivery; Salmonella-mediated COBRA-HA1 is a highly effective in vivo antigen presentation strategy. This approach can effectively combat seasonal H1N1 influenza strains and potential pandemic outbreaks.
关键词: COBRA Influenza A Salmonella Vaccine Broad spectral protection
流感与COVID-19患者的免疫球蛋白G糖基化差异 Article
Marina Kljaković-Gašpić Batinjan, Tea Petrović, Frano Vučković, Irzal Hadžibegović, Barbara Radovani, Ivana Jurin, Lovorka Đerek, Eva Huljev, Alemka Markotić, Ivica Lukšić, Irena Trbojević-Akmačić, Gordan Lauc, Ivan Gudelj, Rok Čivljak
《工程(英文)》 2023年 第26卷 第7期 页码 54-62 doi: 10.1016/j.eng.2022.08.007
The essential role of immunoglobulin G (IgG) in immune system regulation and combatting infectious diseases cannot be fully recognized without an understanding of the changes in its N-glycans attached to the asparagine 297 of the Fc domain that occur under such circumstances. These glycans impact the antibody stability, half-life, secretion, immunogenicity, and effector functions. Therefore, in this study, we analyzed and compared the total IgG glycome—at the level of individual glycan structures and derived glycosylation traits (sialylation, galactosylation, fucosylation, and bisecting N-acetylglucosamine (GlcNAc))—of 64 patients with influenza, 77 patients with coronavirus disease 2019 (COVID-19), and 56 healthy controls. Our study revealed a significant decrease in IgG galactosylation, sialylation, and bisecting GlcNAc (where the latter shows the most significant decrease) in deceased COVID-19 patients, whereas IgG fucosylation was increased. On the other hand, IgG galactosylation remained stable in influenza patients and COVID-19 survivors. IgG glycosylation in influenza patients was more time-dependent: In the first seven days of the disease, sialylation increased and fucosylation and bisecting GlcNAc decreased; in the next 21 days, sialylation decreased and fucosylation increased (while bisecting GlcNAc remained stable). The similarity of IgG glycosylation changes in COVID-19 survivors and influenza patients may be the consequence of an adequate immune response to enveloped viruses, while the observed changes in deceased COVID-19 patients may indicate its deviation.
标题 作者 时间 类型 操作
Assessment of vaccination strategies against highly pathogenic avian influenza in China
Honglei SUN,Jinhua LIU
期刊论文
Research progress on human infection with avian influenza H7N9
Xiaoxin Wu, Lanlan Xiao, Lanjuan Li
期刊论文
Recent advances in “universal” influenza virus antibodies: the rise of a hidden trimeric interface in
Yulu Wang, Dan Hu, Yanling Wu, Tianlei Ying
期刊论文
Global influenza surveillancewith Laplacianmultidimensional scaling
Xi-chuan ZHOU,Fang TANG,Qin LI,Sheng-dong HU,Guo-jun LI,Yun-jian JIA,Xin-ke LI,Yu-jie FENG
期刊论文
Avian influenza A: an avian influenza virus from low pathogenic to highly pathogenic
William J. Liu, Haixia Xiao, Lianpan Dai, Di Liu, Jianjun Chen, Xiaopeng Qi, Yuhai Bi, Yi Shi, George F. Gao, Yingxia Liu
期刊论文
Universal influenza virus vaccines: what can we learn from the human immune response following exposure
null
期刊论文
Endemicity of H9N2 and H5N1 avian influenza viruses in poultry in China poses a serious threat to poultry
Jiao HU,Xiufan LIU
期刊论文
The first avian influenza A (H7N9) viral infection in humans in Zhejiang Province, China: a death report
null
期刊论文
Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management
Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath, Kwok-Yung YUEN MD,
期刊论文
COVID-19大流行期间流感活动呈“断崖式”下降——佩戴口罩、人员流动变化及SARS-CoV-2干扰的作用
韩莎莎, 张婷, 吕岩, 赖圣杰, 戴佩希, 郑建东, 杨维中, 周晓华, 冯录召
期刊论文
从H1N1血凝素序列提取的沙门氏菌传递的COBRA-HA1抗原对甲型流感亚型产生广谱保护作用
Ram Prasad Aganja, Amal Senevirathne, Chandran Sivasankar, John Hwa Lee
期刊论文