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3篇 您的检索式:作者名="Shouwen Du"
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1Immunogenicity analysis following human immunodeficiency virus recombinant DNA and recombinant vaccinia virus Tian Tan prime-boost immunization显示文摘This study assessed and compared the immunogenicity of various immunization strategies in mice using combinations of recombinant DNA(pCCMp24) and recombinant attenuated vaccinia virus Tian Tan(rddVTT-CCMp24).Intramuscular immunization was performed on days 0(prime) and 21(boost).The immunogenicity of the vaccine schedules was determined by measuring human immunodeficiency virus(HIV)-specific binding antibody levels and cytokine(interleukin-2 and interleukin-4) concentrations in peripheral blood,analyzing lymphocyte proliferation capacity against HIV epitopes and CD4 + /CD8 + cell ratio,and monitoring interferon-gamma levels at different times post-immunization.The results showed that pCCMp24,rddVTT-CCMp24 and their prime-boost immunization induced humoral and cellular immune responses.The pCCMp24/rddVTT-CCMp24 immunization strategy increased CD8 + T cells and induced more IFN-γ-secreting cells compared with single-shot rDNA.The prime-boost immunization strategy also induced the generation of cellular immunological memory to HIV epitope peptides.These results demonstrated that prime-boost immunization with rDNA and rddVTT-CCMp24 had a tendency to induce greater cellular immune response than single-shot vaccinations,especially IFN-γ response,providing a basis for further studies.LIU CunXia DU ShouWen LI Chang WANG YuHang WANG MaoPeng LI Yi YIN RongLan LI Xiao REN DaYong QIN YanQing REN JingQiang JIN NingYi 2013Science China(Life Sciences)2013,56,6:7
2Transmembrane domain of IFITM3 is responsible for its interaction with influenza virus HA_(2) subunit显示文摘Interferon-inducible transmembrane protein 3(IFITM3)inhibits influenza virus infection by blocking viral membrane fusion,but the exact mechanism remains elusive.Here,we investigated the function and key region of IFITM3 in blocking influenza virus entry mediated by hemagglutinin(HA).The restriction of IFITM3 on HAmediated viral entry was confirmed by pseudovirus harboring HA protein from H5 and H7 influenza viruses.Subcellular co-localization and immunocoprecipitation analyses revealed that IFITM3 partially co-located with the full-length HA protein and could directly interact with HA_(2) subunit but not HA_(1) subunit of H5 and H7 virus.Truncated analyses showed that the transmembrane domain of the IFITM3 and HA_(2) subunit might play an important role in their interaction.Finally,this interaction of IFITM3 was also verified with HA_(2) subunits from other subtypes of influenza A virus and influenza B virus.Overall,our data demonstrate for the first time a direct interaction between IFITM3 and influenza HA protein via the transmembrane domain,providing a new perspective for further exploring the biological significance of IFITM3 restriction on influenza virus infection or HA-mediated antagonism or escape.Wang Xu Yuhang Wang Letian Li Xiaoyun Qu Quan Liu Tiyuan Li Shipin Wu Ming Liao Ningyi Jin Shouwen Du Chang Li 2022Virologica Sinica2022,37,5:0
3A linear relationship between De Ritis ratio and mortality in hospitalized patients with COVID-19:A secondary analysis based on a large retrospective cohort study显示文摘Background and aims:Although some studies have identified a possible link between the De Ritis ratio and the mortality of patients with COVID-19),the predictive value and the optimal cut-value remain unclear.This study aimed to explore the correlation between the De Ritis ratio and mortality in hospitalized COVID-19.Methods:The data for this cohort study came from a retrospective cohort study that was carried out in a medical system in New York City.The primary outcome was the in-hospital mortality of included patients.The researchers ran multivariate Cox regression analyses,curve fitting,and subgroup analysis to support our findings.Overall survival in different De Ritis ratio groups was plotted as Kaplan-Meier survival curves.Results:The study enrolled 4371 participants with COVID-19 from March 1,2020 to April 16,2020.The overall mortality was 24.8%(1082/4371).The curve fitting analyses indicated that the De Ritis ratio has a positive linear connection with mortality in patients with COVID-19.After adjusting for all covariates,participants with a De Ritis ratio≥2 exhibited 1.29 times the risk of in-hospital mortality compared with those with a De Ritis ratio<1(hazard ratio 1.29,95%confidence interval 1.02-1.62,p=0.031).The p for trend was<0.05 for all models.Patients in the group with a De Ritis ratio≥2 experienced the shortest survival time in the Kaplan-Meier survival analysis.Conclusions:A higher baseline De Ritis ratio is correlated with a corresponding higher mortality among hospitalized people with COVID-19.Yanling Fu Shouwen Du Xiaodi Liu Lin Cao Guilin Yang Hongtao Chen 2022iLIVER2022,1,3:0
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