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Svirshchevskaya EV, Simonova MA, Matushevskaya EV, Fattakhova GV, Khlgatian SV, Ryazantsev DY, Chudakov DB, Zavriev SK. Humoral response to Epstein-Barr viral infection in patients with allergies. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2019. [DOI: 10.24075/brsmu.2019.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Type I hypersensitivity is mediated by the production of IgE antibodies in response to normally harmless substances. Debate still continues about the mechanisms underlying allergic reactions. Reduced barrier tissue function can be one of the risk factors for allergies. The aim of the present work was to compare the humoral immune response to Epstein-Barr virus in patients allergic to the A. alternata fungus or D. farinae house dust mites and healthy donors. It is known that up to 90% of the world population are infected with EBV. This infection occurs at early age when a child develops allergy. The antibodies were analyzed using immuno-PCR and the recombinant EBV protein rEBNA. We were able to demonstrate that infection occurs at early age in both allergic patients and healthy donors. The proportion of EBP-seropositive individuals was comparable between the groups (75% and 74%). The proportion of patients with high IgG1 titers among patients with allergies was lower (7%) than in healthy donors (18%), suggesting a lower viral load. In patients with allergies (but not in healthy donors) IgG1 titers declined as children grew older (р = 0.037). Besides, IgA1 titers were increased in patients with allergies in comparison with healthy donors, but differed between patients allergic to A. alternata and house dust mites. In allergic individuals, production of IgM against EBV was triggered earlier than in healthy donors. We conclude that IgM production and the IgA1-mediated humoral response occur earlier in patients with allergies, causing a decline in IgG1 titers over time.
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Affiliation(s)
| | - M. A. Simonova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - E. V. Matushevskaya
- Institute of Continuing Vocational Education, Federal Medical Biological Agency, Moscow, Russia
| | - G. V. Fattakhova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - S. V. Khlgatian
- Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia
| | - D. Yu. Ryazantsev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - D. B. Chudakov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - S. K. Zavriev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
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Pivovarov VD, Ryazantsev DY, Simonova MA, Yegorova TV, Khlgatian SV, Zavriev SK, Svirshchevskaya EV. Immuno-PCR Assay for Quantitation of Antibodies to Epstein–Barr Virus. Mol Biol 2018. [DOI: 10.1134/s0026893318040155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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