Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein

Human adenovirus type 55 (HAdV55) is a newly identified re-emergent acute respiratory disease (ARD) pathogen with a proposed recombination of hexon gene between HAdV11 and HAdV14 strains. The identification of the neutralizing epitopes is important for the surveillance and vaccine development agains...

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Main Authors: Xingui Tian, Qiang Ma, Zaixue Jiang, Junfeng Huang, Qian Liu, Xiaomei Lu, Qingming Luo, Rong Zhou
Format: Article
Language:English
Published: MDPI AG 2015-10-01
Series:Viruses
Subjects:
Online Access:http://www.mdpi.com/1999-4915/7/10/2896
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author Xingui Tian
Qiang Ma
Zaixue Jiang
Junfeng Huang
Qian Liu
Xiaomei Lu
Qingming Luo
Rong Zhou
author_facet Xingui Tian
Qiang Ma
Zaixue Jiang
Junfeng Huang
Qian Liu
Xiaomei Lu
Qingming Luo
Rong Zhou
author_sort Xingui Tian
collection DOAJ
description Human adenovirus type 55 (HAdV55) is a newly identified re-emergent acute respiratory disease (ARD) pathogen with a proposed recombination of hexon gene between HAdV11 and HAdV14 strains. The identification of the neutralizing epitopes is important for the surveillance and vaccine development against HAdV55 infection. In this study, four type-specific epitope peptides of HAdV55 hexon protein, A55R1 (residues 138 to 152), A55R2 (residues 179 to 187), A55R4 (residues 247 to 259) and A55R7 (residues 429 to 443), were predicted by multiple sequence alignment and homology modeling methods, and then confirmed with synthetic peptides by enzyme-linked immunosorbent assay (ELISA) and neutralization tests (NT). Finally, the A55R2 was incorporated into human adenoviruses 3 (HAdV3) and a chimeric adenovirus rAd3A55R2 was successfully obtained. The chimeric rAd3A55R2 could induce neutralizing antibodies against both HAdV3 and HAdV55. This current study will contribute to the development of novel adenovirus vaccine candidate and adenovirus structural analysis.
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spelling doaj.art-9b0f468fc5604eeaa8769cf791f810b02022-12-21T17:43:25ZengMDPI AGViruses1999-49152015-10-017105632564210.3390/v7102896v7102896Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon ProteinXingui Tian0Qiang Ma1Zaixue Jiang2Junfeng Huang3Qian Liu4Xiaomei Lu5Qingming Luo6Rong Zhou7State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510230, ChinaState Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510230, ChinaDongguan Institute of Pediatrics, Dongguan Children’s Hospital, Dongguan 523325, ChinaSchool of Life Sciences, Sun Yat-sen University, Guangzhou 510275, ChinaDongguan Institute of Pediatrics, Dongguan Children’s Hospital, Dongguan 523325, ChinaDongguan Institute of Pediatrics, Dongguan Children’s Hospital, Dongguan 523325, ChinaDongguan Institute of Pediatrics, Dongguan Children’s Hospital, Dongguan 523325, ChinaState Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510230, ChinaHuman adenovirus type 55 (HAdV55) is a newly identified re-emergent acute respiratory disease (ARD) pathogen with a proposed recombination of hexon gene between HAdV11 and HAdV14 strains. The identification of the neutralizing epitopes is important for the surveillance and vaccine development against HAdV55 infection. In this study, four type-specific epitope peptides of HAdV55 hexon protein, A55R1 (residues 138 to 152), A55R2 (residues 179 to 187), A55R4 (residues 247 to 259) and A55R7 (residues 429 to 443), were predicted by multiple sequence alignment and homology modeling methods, and then confirmed with synthetic peptides by enzyme-linked immunosorbent assay (ELISA) and neutralization tests (NT). Finally, the A55R2 was incorporated into human adenoviruses 3 (HAdV3) and a chimeric adenovirus rAd3A55R2 was successfully obtained. The chimeric rAd3A55R2 could induce neutralizing antibodies against both HAdV3 and HAdV55. This current study will contribute to the development of novel adenovirus vaccine candidate and adenovirus structural analysis.http://www.mdpi.com/1999-4915/7/10/2896adenovirus type 55neutralizing epitopebivalent vaccine
spellingShingle Xingui Tian
Qiang Ma
Zaixue Jiang
Junfeng Huang
Qian Liu
Xiaomei Lu
Qingming Luo
Rong Zhou
Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein
Viruses
adenovirus type 55
neutralizing epitope
bivalent vaccine
title Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein
title_full Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein
title_fullStr Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein
title_full_unstemmed Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein
title_short Identification and Application of Neutralizing Epitopes of Human Adenovirus Type 55 Hexon Protein
title_sort identification and application of neutralizing epitopes of human adenovirus type 55 hexon protein
topic adenovirus type 55
neutralizing epitope
bivalent vaccine
url http://www.mdpi.com/1999-4915/7/10/2896
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