Vaccine:手足口病双价疫苗研究取得新突破

2014-05-04 上海巴斯德研究所 上海巴斯德研究所

手足口病产生于20世纪中期,已成为一种广泛流行于婴幼儿的传染性疾病。临床症状主要为发热以及手、足、口腔等部位的疱疹,少数患儿可引起心肌炎、肺水肿、无菌性脑膜脑炎等并发症而导致死亡。近几年,疫情在全世界许多国家和地区先后爆发,已成为重大的公共卫生隐患,引起社会的广泛关注。开发手足口病预防性疫苗也成为疫苗研究领域的一个重点。 手足口病是由肠道病毒引起的传染病。临床诊断和流行病调查结果显示,我国的

手足口病产生于20世纪中期,已成为一种广泛流行于婴幼儿的传染性疾病。临床症状主要为发热以及手、足、口腔等部位的疱疹,少数患儿可引起心肌炎、肺水肿、无菌性脑膜脑炎等并发症而导致死亡。近几年,疫情在全世界许多国家和地区先后爆发,已成为重大的公共卫生隐患,引起社会的广泛关注。开发手足口病预防性疫苗也成为疫苗研究领域的一个重点。

手足口病是由肠道病毒引起的传染病。临床诊断和流行病调查结果显示,我国的手足口病主要由肠道病毒71型(EV71)和柯萨奇病毒A16型(CA16)的感染引起。因此,开发能够同时预防EV71和CA16感染的双价疫苗是防控手足口病的重要手段。

中国科学院上海巴斯德研究所蔡一村博士在研究员黄忠的指导下,开展了抗EV71和CA16双价疫苗的研发工作。研究人员制备了基于灭活病毒的单价EV71疫苗、单价CA16疫苗和包含以上两种抗原的双价疫苗,并在小鼠模型上评价单、双价疫苗的免疫原性和抗病毒效果。结果显示,单价疫苗所诱导产生的抗体只能够抵抗同型病毒的体外和体内感染,而对于异型病毒没有保护效果;双价疫苗免疫小鼠血清在体外可以有效中和EV71和CA16两种病毒,并且保护小鼠免于致死剂量的EV71或CA16病毒攻击。研究表明,实验性双价疫苗中的EV71和CA16抗原间不存在免疫竞争和拮抗,能够在动物体内平衡地诱发针对EV71和CA16的有效免疫保护反应。

相关研究结果在线发表于国际学术刊物Vaccine

此项研究获得国家自然科学基金、中科院知识创新工程、上海市生物医药领域科技支撑计划和巴斯德健康研究基金会的经费支持。

原始出处:


Cai Y1, Ku Z1, Liu Q1, Leng Q1, Huang Z2.A combination vaccine comprising of inactivated enterovirus 71 and coxsackievirus A16 elicits balanced protective immunity against both viruses.Vaccine. 2014 May 1;32(21):2406-12. doi: 10.1016/j.vaccine.2014.03.012. Epub 2014 Mar 18.


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    2015-12-07 飘羽飞鱼

    为什么有人评论垃圾 却不留下评论意见呢

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    2014-10-20 lingqf
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    2014-06-24 zxxiang
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    2015-03-01 kalseyzl
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肠道病毒71型(EV71)是引发手足口病或咽峡炎的主要病原体之一。2008年EV71病毒在中国流行,共造成49万人感染,126人死亡。这些感染和死亡病例集中在3岁以下的婴幼儿。目前世界上尚无针对EV71病毒的特异性疫苗。 来自江苏省疾病预防控制中心、中国疾病预防控制中心、中国食品药品检定研究院等多家机构的科研人员研制出一种基于Vero细胞、以氢氧化铝为佐剂的EV71灭活疫苗。1期和2期临

Lancet Infect Dis:中国的手足口病流行情况

手足口病是由肠道病毒引起的传染病,多发生于5岁以下儿童,可引起手、足、口腔等部位的疱疹,少数患儿可引起心肌炎、肺水肿、无菌性脑膜脑炎等并发症。个别重症患儿如果病情发展快,导致死亡。引发手足口病的肠道病毒有20多种(型),柯萨奇病毒A组的16、4、5、9、10型,B组的2、5型,以及肠道病毒71型,均为手足口病较常见的病原体,其中以柯萨奇病毒A16型(Cox A16)和肠道病毒71型(EV 71)最