» Articles » PMID: 22090110

Genetic Mapping of a Highly Variable Norovirus GII.4 Blockade Epitope: Potential Role in Escape from Human Herd Immunity

Overview
Journal J Virol
Date 2011 Nov 18
PMID 22090110
Citations 93
Authors
Affiliations
Soon will be listed here.
Abstract

Noroviruses account for 96% of viral gastroenteritis cases worldwide, with GII.4 strains responsible >80% of norovirus outbreaks. Histo-blood group antigens (HBGAs) are norovirus binding ligands, and antigenic and preferential HBGA binding profiles vary over time as new GII.4 strains emerge. The capsid P2 subdomain facilitates HBGA binding, contains neutralizing antibody epitopes, and likely evolves in response to herd immunity. To identify amino acids regulating HBGA binding and antigenic differences over time, we created chimeric virus-like particles (VLPs) between the GII.4-1987 and GII.4-2006 strains by exchanging amino acids in putative epitopes and characterized their antigenic and HBGA binding profiles using anti-GII.4-1987 and -2006 mouse monoclonal antibodies (MAbs) and polyclonal sera, 1988 outbreak human sera, and synthetic HBGAs. The exchange of amino acids 393 to 395 between GII.4-1987 and GII.4-2006 resulted in altered synthetic HBGA binding compared to parental strains. Introduction of GII.4-1987 residues 294, 297 to 298, 368, and 372 (epitope A) into GII.4-2006 resulted in reactivity with three anti-GII.4-1987 MAbs and reduced reactivity with four anti-GII.4-2006 MAbs. The three anti-GII.4-1987 MAbs also blocked chimeric VLP-HBGA interaction, while an anti-GII.4-2006 blocking antibody did not, indicating that epitope A amino acids comprise a potential neutralizing epitope for GII.4-1987 and GII.4-2006. We also tested GII.4-1987-immunized mouse polyclonal sera and 1988 outbreak human sera for the ability to block chimeric VLP-HBGA interaction and found that epitope A amino acids contribute significantly to the GII.4-1987 blockade response. Our data provide insights that help explain the emergence of new GII.4 epidemic strains over time, may aid development of norovirus therapeutics, and may help predict the emergence of future epidemic strains.

Citing Articles

Conformational Flexibility in Capsids Encoded by the .

Lewis C, Sherry L, Conley M, Nakashima M, Akbar S, Govindan N Viruses. 2025; 16(12.

PMID: 39772145 PMC: 11680396. DOI: 10.3390/v16121835.


In Vitro Culture of Human Norovirus in the Last 20 Years.

Cheng C, Cai X, Li J, Zhang X, Xie Y, Zhang J Biomedicines. 2024; 12(11).

PMID: 39595008 PMC: 11592199. DOI: 10.3390/biomedicines12112442.


Biological Specimen Banking as a Time Capsule to Explore the Temporal Dynamics of Norovirus Epidemiology.

Bonura F, Filizzolo C, Pizzo M, Sanfilippo G, Cacioppo F, Palazzotto E Viruses. 2023; 15(12).

PMID: 38140544 PMC: 10747129. DOI: 10.3390/v15122303.


Emergence of Novel Norovirus GII.4 Variant.

Chhabra P, Tully D, Mans J, Niendorf S, Barclay L, Cannon J Emerg Infect Dis. 2023; 30(1):163-167.

PMID: 38063078 PMC: 10756382. DOI: 10.3201/eid3001.231003.


Cross-reactive neutralizing human monoclonal antibodies mapping to variable antigenic sites on the norovirus major capsid protein.

Ford-Siltz L, Tohma K, Alvarado G, Kendra J, Pilewski K, Crowe Jr J Front Immunol. 2022; 13:1040836.

PMID: 36389818 PMC: 9641292. DOI: 10.3389/fimmu.2022.1040836.


References
1.
Mattner F, Sohr D, Heim A, Gastmeier P, Vennema H, Koopmans M . Risk groups for clinical complications of norovirus infections: an outbreak investigation. Clin Microbiol Infect. 2006; 12(1):69-74. DOI: 10.1111/j.1469-0691.2005.01299.x. View

2.
Lindesmith L, Donaldson E, Baric R . Norovirus GII.4 strain antigenic variation. J Virol. 2010; 85(1):231-42. PMC: 3014165. DOI: 10.1128/JVI.01364-10. View

3.
El-Kamary S, Pasetti M, Mendelman P, Frey S, Bernstein D, Treanor J . Adjuvanted intranasal Norwalk virus-like particle vaccine elicits antibodies and antibody-secreting cells that express homing receptors for mucosal and peripheral lymphoid tissues. J Infect Dis. 2010; 202(11):1649-58. PMC: 3722871. DOI: 10.1086/657087. View

4.
Bush R, FITCH W, BENDER C, Cox N . Positive selection on the H3 hemagglutinin gene of human influenza virus A. Mol Biol Evol. 1999; 16(11):1457-65. DOI: 10.1093/oxfordjournals.molbev.a026057. View

5.
Tan M, Xia M, Cao S, Huang P, Farkas T, Meller J . Elucidation of strain-specific interaction of a GII-4 norovirus with HBGA receptors by site-directed mutagenesis study. Virology. 2008; 379(2):324-34. PMC: 3503251. DOI: 10.1016/j.virol.2008.06.041. View