为应对未来的冠状病毒威胁而开发的新型多合一疫苗
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2022-07-06 11:14:14
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<h2 class="heading-2 ace-line old-record-id-doxcnOkekSAkmsmm8iEhxVGFKIc" style="text-align: justify;"><strong><span class="p">流行病防范创新联盟(CEPI)已宣布提供高达3000万美元的资金,将一种新型纳米颗粒疫苗用于临床试验,以提供对一系列冠状病毒的保护。</span></strong></h2>
<p style="text-align: justify;"> </p>
<div class="ace-line ace-line old-record-id-doxcnMuYKekYCCmM4x12Tm2agGu" style="text-align: justify;">截至2022年7月,随着SARS-CoV-2浪潮的不断涌现,不确定性仍然存在。随着时间的推移,新的病毒变种出现,并有可能减少现有疫苗工作的影响。显然需要制定战略,既要应对新出现的变种,又要保护人群免受未来对人类健康的潜在威胁,例如相关的蝙蝠病毒。</div>
<div class="ace-line ace-line old-record-id-doxcnMuYKekYCCmM4x12Tm2agGu" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcn22QEmQM8QOgiaovi3RGszd" style="text-align: justify;"><a href="https://www.uk-cpi.com/news/cepi-funds-consortium-led-by-cpi-to-advance-caltechs-new-all-in-one-coronavirus-vaccine" target="_blank" rel="noopener">一个新的联盟旨在通过为新的疫苗设计建立第一个人体临床概念验证来解决这些问题。</a>该疫苗将针对SARS-CoV-2和一些有可能传播给人类的相关蝙蝠病毒。它建立在牛津大学分子免疫学小组和加州理工学院比约克曼小组开发的技术之上 - 分别由MRC人体免疫学部门的<a href="https://www.rdm.ox.ac.uk/people/alain-townsend" target="_blank" rel="noopener">Alain Townsend教授</a>和Pamela Bjorkman教授领导。</div>
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<div class="ace-line ace-line old-record-id-doxcn42WWec28U8gEVe0lssBRcI" style="text-align: justify;">该联盟汇集了牛津大学和加州理工学院的研究人员,与深度技术创新组织CPI和工业生物技术公司Ingenza Ltd(Caltech-CPI-Oxford-Ingenza)合作。</div>
<div class="ace-line ace-line old-record-id-doxcn42WWec28U8gEVe0lssBRcI" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcnG4wwSwSSQs2GCQoelUcjnt" style="text-align: justify;">流行病防范创新联盟(CEPI)将与该联盟合作,并宣布提供高达3000万美元的资金,用于资助基于该技术的临床前研究,GMP制造和1期试验。</div>
<div class="ace-line ace-line old-record-id-doxcnG4wwSwSSQs2GCQoelUcjnt" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcnWy0gYQEuWSMgOmu0QgLbYf" style="text-align: justify;">与许多使用mRNA或病毒载体将单一类型病毒的刺突蛋白片段呈现给免疫系统的现有疫苗设计相反,这种新疫苗将使用含有蛋白质“胶水”的蛋白质纳米颗粒来附着来自八种不同病毒的刺突蛋白的相关抗原切片。通过结合加州理工学院创建的“mosaic-8疫苗”设计,这些纳米颗粒将有利于对单一疫苗中每种不同类型的冠状病毒的共享部分的免疫反应。</div>
<div class="ace-line ace-line old-record-id-doxcnWy0gYQEuWSMgOmu0QgLbYf" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcn2K8w0gKuWuq2kjuLg0TiBf" style="text-align: justify;">研究人员今天发表在《<em><a href="https://www.science.org/doi/10.1126/science.abq0839" target="_blank" rel="noopener">科学》杂志</a></em>上的证据显示,这种疫苗技术不仅可以引发针对SARS样病毒的保护性免疫反应,还可以针对试验疫苗中未出现的一些冠状病毒。这表明该技术可以提供保护,防止未来新的SARS-CoV-2变体和尚未发现的冠状病毒,这些冠状病毒有可能从动物种群中溢出。</div>
<div class="ace-line ace-line old-record-id-doxcn2K8w0gKuWuq2kjuLg0TiBf" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcnA4KKsYqOeskqsFvCMTcHsb" style="text-align: justify;">该联盟的牛津负责人,牛津大学MRC Weatherall分子医学研究所分子免疫学教授Alain Townsend说:</div>
<div class="ace-line ace-line old-record-id-doxcnOAw8kg0cmeucczM7beBOeh" style="text-align: justify;">“这个联盟的演变是合作科学最好的一个例子。马克·豪沃思(Mark Howarth)(牛津大学生物化学)开发的将蛋白质粘在一起的“胶水”的力量给我们留下了深刻的印象,这种“胶水”来自他对<em>化脓性链球菌</em>细菌的美丽基础科学研究。</div>
<div class="ace-line ace-line old-record-id-doxcnOAw8kg0cmeucczM7beBOeh" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcn6sEMs2egOYQ8cF99h7RpOe" style="text-align: justify;">“我们一起使用这项技术制造了一种原型纳米颗粒SARS-CoV-2疫苗,该疫苗在临床前研究中诱导了有效的反应。</div>
<div class="ace-line ace-line old-record-id-doxcn6sEMs2egOYQ8cF99h7RpOe" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcni0GWG0YuQOmO47BYfhK2Pg" style="text-align: justify;">“通过Ian Wilkinson(绝对抗体)建立的联系,我们与Ingenza和CPI的同事一起成功制造了微生物中生产的疫苗的全功能版本,从而降低了生产成本。我们一直在与Pamela Bjorkman教授和加州理工学院团队合作,他们独立开发了马赛克疫苗版本的精彩概念,并很高兴继续与这个世界级的联盟合作。</div>
<div class="ace-line ace-line old-record-id-doxcni0GWG0YuQOmO47BYfhK2Pg" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcne2mAikuy8g62cfFrFZpidc" style="text-align: justify;">财团合作伙伴致力于实现公平获得项目产出。</div>
<div class="ace-line ace-line old-record-id-doxcne2mAikuy8g62cfFrFZpidc" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcnyCQQWsMGs60IOQNOSy70Pe" style="text-align: justify;">该联盟的项目经理(牛津大学),MRC Weatherall分子医学研究所的高级博士后科学家<a href="https://www.rdm.ox.ac.uk/people/tiong-tan" target="_blank" rel="noopener">Jack Tan博士</a>说:</div>
<div class="ace-line ace-line old-record-id-doxcn2egEWWumQMqyqgFAOVN6bd" style="text-align: justify;">“我们很高兴与CEPI合作,进一步推进这种纳米颗粒技术,目标是生产有效,低成本,基础设施独立的疫苗,这些疫苗将可供低收入和中等收入国家使用。</div>
<div class="ace-line ace-line old-record-id-doxcn2egEWWumQMqyqgFAOVN6bd" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcnQwSEK88iCcOwGYuaAcOqIb" style="text-align: justify;">CEPI首席执行官Richard Hatchett博士说:“21世纪已经发生了三次严重的冠状病毒流行病或大流行 - COVID-19继续对世界的健康,社会和经济产生破坏性影响。创造能够针对新出现的COVID-19变种和未来冠状病毒威胁提供广泛保护的疫苗不仅有助于减轻另一种类似COVID-19的大流行的破坏性影响,还有助于减少不断更新疫苗配方所花费的时间和资金。</div>
<div class="ace-line ace-line old-record-id-doxcnQwSEK88iCcOwGYuaAcOqIb" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcnmaigg8IQ88ISocb3Wdvip6" style="text-align: justify;">“这就是为什么我们很高兴今天与这个由CPI领导的研究联盟合作,以Wellcome Leap的初始投资为基础,进一步推进这种开创性的马赛克纳米颗粒疫苗技术,如果成功,可以致力于将冠状病毒构成的威胁托付给历史书。</div>
<div class="ace-line ace-line old-record-id-doxcnmaigg8IQ88ISocb3Wdvip6" style="text-align: justify;"> </div>
<div class="ace-line ace-line old-record-id-doxcne0kC6ugKyIqCu6YHx6zzmd" style="text-align: justify;">该联盟的目标是在2024年开始由牛津疫苗集团领导的1期试验。</div>
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