Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infections

Live attenuated influenza vaccines (LAIV) induce CD8+ T lymphocyte responses that play an important role in killing virus-infected cells. Despite the relative conservation of internal influenza A proteins, the epitopes recognized by T cells can undergo drift under immune pressure. The internal prote...

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Main Authors: D. Korenkov, T. H. O. Nguyen, I. Isakova-Sivak, T. Smolonogina, L. E. Brown, K. Kedzierska, L. Rudenko
Format: Article
Language:English
Published: Taylor & Francis Group 2018-04-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2017.1417713
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author D. Korenkov
T. H. O. Nguyen
I. Isakova-Sivak
T. Smolonogina
L. E. Brown
K. Kedzierska
L. Rudenko
author_facet D. Korenkov
T. H. O. Nguyen
I. Isakova-Sivak
T. Smolonogina
L. E. Brown
K. Kedzierska
L. Rudenko
author_sort D. Korenkov
collection DOAJ
description Live attenuated influenza vaccines (LAIV) induce CD8+ T lymphocyte responses that play an important role in killing virus-infected cells. Despite the relative conservation of internal influenza A proteins, the epitopes recognized by T cells can undergo drift under immune pressure. The internal proteins of Russian LAIVs are derived from the master donor virus A/Leningrad/134/17/57 (Len/17) isolated 60 years ago and as such, some CD8+ T cell epitopes may vary between the vaccine and circulating wild-type strains. To partially overcome this issue, the nucleoprotein (NP) gene of wild-type virus can be incorporated into LAIV reassortant virus, along with the HA and NA genes. The present study compares the human CD8+ T cell memory responses to H3N2 LAIVs with the Len/17 or the wild-type NP using an in vitro model.
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spelling doaj.art-123a7e3bb6a44b388512143f9d0437af2023-09-22T08:17:53ZengTaylor & Francis GroupHuman Vaccines & Immunotherapeutics2164-55152164-554X2018-04-0114494194610.1080/21645515.2017.14177131417713Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infectionsD. Korenkov0T. H. O. Nguyen1I. Isakova-Sivak2T. Smolonogina3L. E. Brown4K. Kedzierska5L. Rudenko6Institute of Experimental MedicineUniversity of Melbourne, at The Peter Doherty Institute for Infection & ImmunityInstitute of Experimental MedicineInstitute of Experimental MedicineUniversity of Melbourne, at The Peter Doherty Institute for Infection & ImmunityUniversity of Melbourne, at The Peter Doherty Institute for Infection & ImmunityInstitute of Experimental MedicineLive attenuated influenza vaccines (LAIV) induce CD8+ T lymphocyte responses that play an important role in killing virus-infected cells. Despite the relative conservation of internal influenza A proteins, the epitopes recognized by T cells can undergo drift under immune pressure. The internal proteins of Russian LAIVs are derived from the master donor virus A/Leningrad/134/17/57 (Len/17) isolated 60 years ago and as such, some CD8+ T cell epitopes may vary between the vaccine and circulating wild-type strains. To partially overcome this issue, the nucleoprotein (NP) gene of wild-type virus can be incorporated into LAIV reassortant virus, along with the HA and NA genes. The present study compares the human CD8+ T cell memory responses to H3N2 LAIVs with the Len/17 or the wild-type NP using an in vitro model.http://dx.doi.org/10.1080/21645515.2017.1417713antigenic escapeinfluenzalaivnucleoproteint cell epitope
spellingShingle D. Korenkov
T. H. O. Nguyen
I. Isakova-Sivak
T. Smolonogina
L. E. Brown
K. Kedzierska
L. Rudenko
Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infections
Human Vaccines & Immunotherapeutics
antigenic escape
influenza
laiv
nucleoprotein
t cell epitope
title Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infections
title_full Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infections
title_fullStr Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infections
title_full_unstemmed Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infections
title_short Live Attenuated Influenza Vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza CD8+ T cells more relevant to current infections
title_sort live attenuated influenza vaccines engineered to express the nucleoprotein of a recent isolate stimulate human influenza cd8 t cells more relevant to current infections
topic antigenic escape
influenza
laiv
nucleoprotein
t cell epitope
url http://dx.doi.org/10.1080/21645515.2017.1417713
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