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A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein

The rotavirus (RV) inner capsid protein VP6 is widely used to evaluate immune response during natural infection and in vaccine studies. Recombinant VP6 from the most prevalent circulating rotavirus strains in each subgroup (SG) identified in a birth cohort of children in southern India [SGII (G1P[8]...

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Autores principales: Kavanagh, Owen, Zeng, Xi-Lei, Ramani, Sasirekha, Mukhopadhya, Indrani, Crawford, Sue E., Kang, Gagandeep, Estes, Mary K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier/North-Holland Biomedical Press 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3617367/
https://www.ncbi.nlm.nih.gov/pubmed/23183143
http://dx.doi.org/10.1016/j.jviromet.2012.11.003
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author Kavanagh, Owen
Zeng, Xi-Lei
Ramani, Sasirekha
Mukhopadhya, Indrani
Crawford, Sue E.
Kang, Gagandeep
Estes, Mary K.
author_facet Kavanagh, Owen
Zeng, Xi-Lei
Ramani, Sasirekha
Mukhopadhya, Indrani
Crawford, Sue E.
Kang, Gagandeep
Estes, Mary K.
author_sort Kavanagh, Owen
collection PubMed
description The rotavirus (RV) inner capsid protein VP6 is widely used to evaluate immune response during natural infection and in vaccine studies. Recombinant VP6 from the most prevalent circulating rotavirus strains in each subgroup (SG) identified in a birth cohort of children in southern India [SGII (G1P[8]) and SGI (G10P[11])] were produced. The purified proteins were used to measure VP6-specific antibodies in a Dissociation-Enhanced Lanthanide Fluorometric Immunoassay (DELFIA). The ability of the assay to detect a ≥2 fold rise in IgG level in a panel of serum samples from a longitudinal study was compared to a gold standard virus-capture ELISA. A strong association was observed between the assays (p < 0.001; chi-squared test) with assay performances remaining similar when the samples were subdivided as having a fold change increase in VP6 antibody levels (a) within 90 days of RV RNA detection in stool or (b) if no RV RNA was detected within that time period. This study demonstrates the suitability of using recombinant proteins to measure anti-RV immune responses and serves as a “proof of principle” to examine the antibody responses generated to other recombinant RV proteins and thereby possibly identify a correlate of protection.
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spelling pubmed-36173672013-04-05 A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein Kavanagh, Owen Zeng, Xi-Lei Ramani, Sasirekha Mukhopadhya, Indrani Crawford, Sue E. Kang, Gagandeep Estes, Mary K. J Virol Methods Short Communication The rotavirus (RV) inner capsid protein VP6 is widely used to evaluate immune response during natural infection and in vaccine studies. Recombinant VP6 from the most prevalent circulating rotavirus strains in each subgroup (SG) identified in a birth cohort of children in southern India [SGII (G1P[8]) and SGI (G10P[11])] were produced. The purified proteins were used to measure VP6-specific antibodies in a Dissociation-Enhanced Lanthanide Fluorometric Immunoassay (DELFIA). The ability of the assay to detect a ≥2 fold rise in IgG level in a panel of serum samples from a longitudinal study was compared to a gold standard virus-capture ELISA. A strong association was observed between the assays (p < 0.001; chi-squared test) with assay performances remaining similar when the samples were subdivided as having a fold change increase in VP6 antibody levels (a) within 90 days of RV RNA detection in stool or (b) if no RV RNA was detected within that time period. This study demonstrates the suitability of using recombinant proteins to measure anti-RV immune responses and serves as a “proof of principle” to examine the antibody responses generated to other recombinant RV proteins and thereby possibly identify a correlate of protection. Elsevier/North-Holland Biomedical Press 2013-04 /pmc/articles/PMC3617367/ /pubmed/23183143 http://dx.doi.org/10.1016/j.jviromet.2012.11.003 Text en © 2013 Elsevier B.V. https://creativecommons.org/licenses/by/3.0/ Open Access under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/) license
spellingShingle Short Communication
Kavanagh, Owen
Zeng, Xi-Lei
Ramani, Sasirekha
Mukhopadhya, Indrani
Crawford, Sue E.
Kang, Gagandeep
Estes, Mary K.
A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein
title A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein
title_full A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein
title_fullStr A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein
title_full_unstemmed A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein
title_short A time-resolved immunoassay to measure serum antibodies to the rotavirus VP6 capsid protein
title_sort time-resolved immunoassay to measure serum antibodies to the rotavirus vp6 capsid protein
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3617367/
https://www.ncbi.nlm.nih.gov/pubmed/23183143
http://dx.doi.org/10.1016/j.jviromet.2012.11.003
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