一种对新冠变异株广谱中和保护的免疫原及其制备方法和应用

    公开(公告)号:CN113957097B

    公开(公告)日:2023-11-28

    申请号:CN202111287480.0

    申请日:2021-11-02

    摘要: 本申请涉及一种对新冠变异株更广谱中和保护的免疫原及其制备方法和应用,具体涉及新型冠状病毒Spike蛋白的突变体,包含编码所述Spike蛋白的突变体的核苷酸序列的核酸分子,以及包含所述核酸分子的载体和假性化病毒样颗粒。此外,本申请还涉及包含所述Spike蛋白的突变体、核酸分子、载体或假性化病毒样颗粒的疫苗组合物。本申请制备的疫苗以及方法,对于新冠病毒及其突变株具有非常广谱的中和活性。(56)对比文件WO 2021178416 A1,2021.09.10Howard,D等.surface glycoprotein[Severe acute respiratory syndromecoronavirus 2]《.NCBI GenBank database》.2021,QUO92622.1.Sandipan等.E484K and N501Y SARS-CoV 2Spike Mutants Increase ACE2 Recognitionbut Reduce Affinity for NeutralizingAntibody《.InternationalImmunopharmacology》.2022,第102卷全文.Deepa Raghu等.Assessment of thebinding interactions of SARS-CoV-2 spikeglycoprotein variants《.Journal ofPharmaceutical Analysis》.2022,第12卷(第1期),第58-64页.杨鹏.SARS-CoV-2假病毒体系的建立与疫苗评价初步研究《.中国优秀硕士学位论文全文数据库(电子期刊)医药卫生科技辑》.2023,(第1期),全文.Xie XP等.Neutralization of SARS-CoV-2spike 69/70 deletion, E484K and N501Yvariants by BNT162b2 vaccine-elicitedsera《.Nature Medicine》.2021,第27卷(第4期),全文.Ziyan Wang等.A potent, broadlyprotective vaccine against SARS-CoV-2variants of concern《.npj Vaccines》.2022,第7卷第1-13页.Andreano E等.Extremely potent humanmonoclonal antibodies from COVID-19convalescent patients《.Cell》.2021,第184卷(第7期),第1821-1835页.Xue Li等.Recent progress on themutations of SARS-CoV-2 spike protein andsuggestions for prevention andcontrolling of the pandemic《.Infect GenetEvol》.2021,全文.Maochen Li等.SARS-CoV-2 variants: anew challenge to convalescent serum andmRNA vaccine neutralization efficiency.《Signal Transduction and TargetedTherrapy》.2021,第6卷全文.