Antigenic characteristics and genomic analysis of novel EV-A90 enteroviruses isolated in Xinjiang, China.

Antigenic characteristics and genomic analysis of novel EV-A90 enteroviruses isolated in Xinjiang, China.
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新疆分离的新型EV-A90肠道病毒的抗原特征及基因组分析

DOI:
10.1038/s41598-018-28469-9
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发表时间:
2018-07-06
期刊:
影响因子:
4.6
通讯作者:
Xu W
Xu W
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Huang K;Zhang Y;Song Y;Cui H;Yan D;Zhu S;Sun Q;Tang H;Wang D;Xu W

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肠道病毒A90(EV-A90)是一种罕见的肠道病毒A型血清型。我们从新疆和田和喀什地区急性弛缓性麻痹患者中分离到5株肠道病毒,经分子分型鉴定为EV-A90。这些新疆EV-A90株的VP 1序列与原型EV-A90株的核苷酸序列同源性为88.4-89%,但基因组分析表明,在P2和P3区发生了复杂的重组事件。在和田和喀什地区共检测了49份血清标本,EV-A90抗体阳性率为37.5%(>1:8),几何平均滴度(GMT)为1:10.47。低阳性率和GMT提示新疆EV-A90处于低水平流行。5株EV-A90新疆分离株中,2株为温度敏感型,3株为温度抗性型,比较基因组学分析表明3Dpol 1区的一个氨基酸替换(H1799 Y)与温度敏感性相关。虽然流行强度较低,但部分EV-A90菌株具有耐温性,表明其毒力和传播能力较强。本研究扩大了EV-A90在GenBank中的收录范围,为EV-A90的分子流行病学研究提供了基础资料。
Enterovirus A90 (EV-A90) is a novel serotype of enterovirus A species that is rarely reported. Here, we isolated five enteroviruses from patients with acute flaccid paralysis in Hotan and Kashgar cities in Xinjiang, China that were identified as EV-A90 by molecular typing. TheVP1sequences of these Xinjiang EV-A90 strains showed 88.4–89% nucleotide sequence identity to the prototype EV-A90 strain; however, genome analysis indicated complex recombination events inP2andP3 regions. Next, the seroprevalence of EV-A90 was examined in 49 serum specimens collected in Hotan and Kashgar, and 37.5% were EV-A90 antibody positive (>1:8), with a geometric mean titre (GMT) of 1:10.47. The low positive rate and GMT suggest a low-level EV-A90 epidemic in Xinjiang. Two of the five Xinjiang EV-A90 strains were temperature sensitive, and three were temperature resistant, and a comparative genomics analysis suggested that an amino acid substitution (H1799Y) in the 3Dpolregion was related to temperature sensitivity. Although the epidemic strength is low, some EV-A90 strains were temperature resistant, which is suggestive of strong virulence and transmission capacity. This study expanded the number of EV-A90 in GenBank and provided basic data that may be useful for studying the molecular epidemiology of EV-A90.
高度突变的 EV-B106 重组体与中国新疆其他 EV-B 存在广泛的基因交换的系统发育特征
DOI: 10.1038/srep43080
发表时间: 2017-02-23
期刊: Scientific reports
影响因子: 4.6
作者:
Song Y;Zhang Y;Fan Q;Cui H;Yan D;Zhu S;Tang H;Sun Q;Wang D;Xu W
通讯作者: Xu W
2008年至2015年D3基因型柯萨奇病毒A6在中国大陆持续流行
DOI: 10.1038/s41598-017-05618-0
发表时间: 2017-07-14
期刊: Scientific reports
影响因子: 4.6
作者:
Song Y;Zhang Y;Ji T;Gu X;Yang Q;Zhu S;Xu W;Xu Y;Shi Y;Huang X;Li Q;Deng H;Wang X;Yan D;Yu W;Wang S;Yu D;Xu W
通讯作者: Xu W
DOI: 10.1371/journal.pone.0086877
发表时间: 2014
期刊: PloS one
影响因子: 3.7
作者:
Lu J;Zheng H;Zhang Y;Guo X;Wu D;Li H;Liu L;Zeng H;Yi L;Fang L;Mo Y;Xu W;Ke C
通讯作者: Ke C
DOI: 10.1128/jvi.73.3.1941-1948.1999
发表时间: 1999-03-01
影响因子: 5.4
作者:
Oberste, MS;Maher, K;Pallansch, MA
通讯作者: Pallansch, MA
DOI: 10.1099/vir.0.81179-0
发表时间: 2006-01-01
影响因子: 3.8
作者:
Oberste, MS;Maher, K;Pallansch, MA
通讯作者: Pallansch, MA