PNAS:人体中循环的登革1型病毒具有高度传染性

2018-12-08 海北 MedSci原创

最近的研究表明,在细胞培养测定中中和DENV的疫苗诱导的抗体不足以保护人免受DENV感染。

四种登革热病毒(DENV)是蚊子传播的人类黄病毒。 至今,我们对于DENVs如何与人类宿主相互作用,导致无症状,轻度或严重疾病还知之甚少,部分原因是实验室模型是人类DENV疾病的不良替代品。

病毒学家对在人体中复制的DENVs的特性,与在实验室细胞系中繁殖的病毒的特性之间的区别具有浓厚的兴趣,后者被广泛用于研究和疫苗开发。

最近,研究人员使用来自斯里兰卡DENV 1流行病临床样本和新的超灵敏检测,比较了人类血浆中DENVs和在实验室细胞系中经过一次传代后的病毒的特性。

血浆中的DENV比细胞中生长的病毒感染性高50700倍。与在人体中循环的DENV相比,由实验室细胞系产生的DENV在结构上是不成熟的,并且对人抗体的中和过敏。人血浆和细胞培养物衍生的病毒具有相同的基因组序列,表明这些表型差异是由于血浆病毒的成熟状态决定的。几种登革热疫苗正在开发中。最近的研究表明,在细胞培养测定中中和DENV的疫苗诱导的抗体不足以保护人免受DENV感染

关于人类与细胞系中产生的DENV之间结构差异的结果可能是了解疫苗失败和开发更好的疫苗评估模型的关键。


原始出处:

Raut R et al. Dengue type 1 viruses circulating in humans are highly infectious and poorly neutralized by human antibodies. PNAS, 2018; doi: 201812055. doi: 10.1073/pnas.1812055115ß


本文系梅斯医学(MedSci)原创编译整理,转载需授权

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1911501, encodeId=cb6e191150161, content=<a href='/topic/show?id=77b3259009f' target=_blank style='color:#2F92EE;'>#传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25900, encryptionId=77b3259009f, topicName=传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2317301, createdName=xzw113, createdTime=Sat Jan 12 17:21:00 CST 2019, time=2019-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856249, encodeId=10ee1856249b7, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Mon May 13 20:21:00 CST 2019, time=2019-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2070113, encodeId=4e0620e011337, content=<a href='/topic/show?id=0c5310236267' target=_blank style='color:#2F92EE;'>#高度传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102362, encryptionId=0c5310236267, topicName=高度传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6f63175, createdName=nian.wang1982, createdTime=Fri Jun 14 21:21:00 CST 2019, time=2019-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=354826, encodeId=2f33354826bf, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=82311653708, createdName=医者仁心5538, createdTime=Sat Dec 08 17:29:38 CST 2018, time=2018-12-08, status=1, ipAttribution=)]
    2019-01-12 xzw113
  2. [GetPortalCommentsPageByObjectIdResponse(id=1911501, encodeId=cb6e191150161, content=<a href='/topic/show?id=77b3259009f' target=_blank style='color:#2F92EE;'>#传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25900, encryptionId=77b3259009f, topicName=传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2317301, createdName=xzw113, createdTime=Sat Jan 12 17:21:00 CST 2019, time=2019-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856249, encodeId=10ee1856249b7, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Mon May 13 20:21:00 CST 2019, time=2019-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2070113, encodeId=4e0620e011337, content=<a href='/topic/show?id=0c5310236267' target=_blank style='color:#2F92EE;'>#高度传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102362, encryptionId=0c5310236267, topicName=高度传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6f63175, createdName=nian.wang1982, createdTime=Fri Jun 14 21:21:00 CST 2019, time=2019-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=354826, encodeId=2f33354826bf, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=82311653708, createdName=医者仁心5538, createdTime=Sat Dec 08 17:29:38 CST 2018, time=2018-12-08, status=1, ipAttribution=)]
    2019-05-13 drwjr
  3. [GetPortalCommentsPageByObjectIdResponse(id=1911501, encodeId=cb6e191150161, content=<a href='/topic/show?id=77b3259009f' target=_blank style='color:#2F92EE;'>#传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25900, encryptionId=77b3259009f, topicName=传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2317301, createdName=xzw113, createdTime=Sat Jan 12 17:21:00 CST 2019, time=2019-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856249, encodeId=10ee1856249b7, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Mon May 13 20:21:00 CST 2019, time=2019-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2070113, encodeId=4e0620e011337, content=<a href='/topic/show?id=0c5310236267' target=_blank style='color:#2F92EE;'>#高度传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102362, encryptionId=0c5310236267, topicName=高度传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6f63175, createdName=nian.wang1982, createdTime=Fri Jun 14 21:21:00 CST 2019, time=2019-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=354826, encodeId=2f33354826bf, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=82311653708, createdName=医者仁心5538, createdTime=Sat Dec 08 17:29:38 CST 2018, time=2018-12-08, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1911501, encodeId=cb6e191150161, content=<a href='/topic/show?id=77b3259009f' target=_blank style='color:#2F92EE;'>#传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25900, encryptionId=77b3259009f, topicName=传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2317301, createdName=xzw113, createdTime=Sat Jan 12 17:21:00 CST 2019, time=2019-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856249, encodeId=10ee1856249b7, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Mon May 13 20:21:00 CST 2019, time=2019-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2070113, encodeId=4e0620e011337, content=<a href='/topic/show?id=0c5310236267' target=_blank style='color:#2F92EE;'>#高度传染性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102362, encryptionId=0c5310236267, topicName=高度传染性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6f63175, createdName=nian.wang1982, createdTime=Fri Jun 14 21:21:00 CST 2019, time=2019-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=354826, encodeId=2f33354826bf, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=82311653708, createdName=医者仁心5538, createdTime=Sat Dec 08 17:29:38 CST 2018, time=2018-12-08, status=1, ipAttribution=)]
    2018-12-08 医者仁心5538

    学习了

    0

相关资讯

Virus Res:奎宁可作为抗登革热病毒感染治疗药物

近日,来自泰国的科学家发现,奎宁具有治疗登革热病毒感染的作用,该研究结果目前已发表至《Virus Research》杂志

Infect Dis:马来西亚南部农村社区健康成人登革热血清阳性率如何?

马来西亚登革热疫情的频率和规模呈指数级持续增长,流行的年龄范围逐渐转向成年人,并不断扩张到农村地区。然而,关于登革热病毒

疾控部门提醒:长假出游谨防登革热

国庆长假将至,很多家庭和个人将前往南方地区旅行。为此,疾控部门发布健康提醒,国庆期间外出要做好防蚊措施,谨防登革热蚊媒传染病。

探案:旅游归来现高热,青霉素用后发皮疹——真相是啥?

女性,33岁,浙江人,职员。主诉:发热7天

J Virol:中国和美国的科学家联合开发出制备登革热候选疫苗毒株的方法

目前,该病毒还没有有效的商品化疫苗来预防。近日,来自武汉病毒研究所的科学家和美国的科学家合作,开发出了一种新的制备登革热病毒疫苗毒株的方法

中国登革热临床诊断和治疗指南

登革热是由登革病毒( dengue virus,DENV)引起的急性传染病,是全球传播最广泛的蚊媒传染病之一。近年来,我国登革热疫情逐渐由东南沿海地区向全国各地蔓延。我国登革热的临床及实验室特征与国外地方性流行地区报道有较大差异,绝大多数患者为成人,重症病例多为伴有基础疾病的老年人,临床医师对登革热早期诊断及重症救治经验不足。为规范登革热的诊断、治疗和预防,中华医学会感染病学分会、中华医学会热带病