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Cardenas-Garcia S, Cáceres CJ, Jain A, Geiger G, Mo JS, Gay LC, Seibert B, Jasinskas A, Nakajima R, Rajao DS, Davies DH, Perez DR. Impact of sex on humoral immunity with live influenza B virus vaccines in mice. NPJ Vaccines 2024; 9:45. [PMID: 38409236 PMCID: PMC10897209 DOI: 10.1038/s41541-024-00827-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 02/08/2024] [Indexed: 02/28/2024] Open
Abstract
Influenza B virus (FLUBV) poses a significant infectious threat, with frequent vaccine mismatch limiting its effectiveness. Our previous work investigated the safety and efficacy of modified live attenuated FLUBV vaccines with rearranged genomes (FluB-RAM and FluB-RANS) or a temperature-sensitive PB1 segment with a C-terminal HA tag (FluB-att). In this study, we compared the immune responses of female and male DBA/2J mice vaccinated with these vaccines, including versions containing a chimeric HA segment with an N-terminal IgA-inducing peptide (IGIP). Importantly, both recombinant viruses with and without IGIP remained genetically stable during egg passage. We found that introducing IGIP strengthened vaccine attenuation, particularly for FluB-RAM/IGIP. Prime-boost vaccination completely protected mice against lethal challenge with a homologous FLUBV strain. Notably, recombinant viruses induced robust neutralizing antibody responses (hemagglutination inhibition titers ≥40) alongside antibodies against NA and NP. Interestingly, female mice displayed a consistent trend of enhanced humoral and cross-reactive IgG and IgA responses against HA, NA, and NP compared to male counterparts, regardless of the vaccine used. However, the presence of IGIP generally led to lower anti-HA responses but higher anti-NA and anti-NP responses, particularly of the IgA isotype. These trends were further reflected in mucosal and serological responses two weeks after challenge, with clear distinctions based on sex, vaccine backbone, and IGIP inclusion. These findings hold significant promise for advancing the development of universal influenza vaccines.
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Affiliation(s)
- Stivalis Cardenas-Garcia
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - C Joaquín Cáceres
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Aarti Jain
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA, 92697, USA
| | - Ginger Geiger
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Jong-Suk Mo
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - L Claire Gay
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Brittany Seibert
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Algimantas Jasinskas
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA, 92697, USA
| | - Rie Nakajima
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA, 92697, USA
| | - Daniela S Rajao
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - D Huw Davies
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA, 92697, USA
| | - Daniel R Perez
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA.
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Cardenas-Garcia S, Cáceres CJ, Jain A, Geiger G, Mo JS, Jasinskas A, Nakajima R, Rajao DS, Davies DH, Perez DR. FluB-RAM and FluB-RANS: Genome Rearrangement as Safe and Efficacious Live Attenuated Influenza B Virus Vaccines. Vaccines (Basel) 2021; 9:vaccines9080897. [PMID: 34452022 PMCID: PMC8402576 DOI: 10.3390/vaccines9080897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/22/2021] [Accepted: 08/05/2021] [Indexed: 12/15/2022] Open
Abstract
Influenza B virus (IBV) is considered a major respiratory pathogen responsible for seasonal respiratory disease in humans, particularly severe in children and the elderly. Seasonal influenza vaccination is considered the most efficient strategy to prevent and control IBV infections. Live attenuated influenza virus vaccines (LAIVs) are thought to induce both humoral and cellular immune responses by mimicking a natural infection, but their effectiveness has recently come into question. Thus, the opportunity exists to find alternative approaches to improve overall influenza vaccine effectiveness. Two alternative IBV backbones were developed with rearranged genomes, rearranged M (FluB-RAM) and a rearranged NS (FluB-RANS). Both rearranged viruses showed temperature sensitivity in vitro compared with the WT type B/Bris strain, were genetically stable over multiple passages in embryonated chicken eggs and were attenuated in vivo in mice. In a prime-boost regime in naïve mice, both rearranged viruses induced antibodies against HA with hemagglutination inhibition titers considered of protective value. In addition, antibodies against NA and NP were readily detected with potential protective value. Upon lethal IBV challenge, mice previously vaccinated with either FluB-RAM or FluB-RANS were completely protected against clinical disease and mortality. In conclusion, genome re-arrangement renders efficacious LAIV candidates to protect mice against IBV.
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Affiliation(s)
- Stivalis Cardenas-Garcia
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (S.C.-G.); (C.J.C.); (G.G.); (J.-S.M.); (D.S.R.)
| | - C. Joaquín Cáceres
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (S.C.-G.); (C.J.C.); (G.G.); (J.-S.M.); (D.S.R.)
| | - Aarti Jain
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA 92697, USA; (A.J.); (A.J.); (R.N.); (D.H.D.)
| | - Ginger Geiger
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (S.C.-G.); (C.J.C.); (G.G.); (J.-S.M.); (D.S.R.)
| | - Jong-Suk Mo
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (S.C.-G.); (C.J.C.); (G.G.); (J.-S.M.); (D.S.R.)
| | - Algimantas Jasinskas
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA 92697, USA; (A.J.); (A.J.); (R.N.); (D.H.D.)
| | - Rie Nakajima
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA 92697, USA; (A.J.); (A.J.); (R.N.); (D.H.D.)
| | - Daniela S. Rajao
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (S.C.-G.); (C.J.C.); (G.G.); (J.-S.M.); (D.S.R.)
| | - D. Huw Davies
- Department of Physiology and Biophysics, School of Medicine, University of California Irvine, Irvine, CA 92697, USA; (A.J.); (A.J.); (R.N.); (D.H.D.)
| | - Daniel R. Perez
- Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (S.C.-G.); (C.J.C.); (G.G.); (J.-S.M.); (D.S.R.)
- Correspondence: ; Tel.: +1-(706)-542-5506
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Cardenas-Garcia S, Caceres CJ, Rajao D, Perez DR. Reverse genetics for influenza B viruses and recent advances in vaccine development. Curr Opin Virol 2020; 44:191-202. [PMID: 33254031 PMCID: PMC8693393 DOI: 10.1016/j.coviro.2020.10.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 02/06/2023]
Abstract
Influenza B virus is a respiratory pathogen that affects more severely the pediatric and elderly populations. There are two lineages of influenza B virus that seem to have differential predilection for age groups. Both lineages can co-circulate during the influenza season however one is usually more prominent than the other depending on the season. There are no defined indicators to predict which lineage will dominate in any given season. In recent years, the addition of viruses from both lineages to the seasonal influenza vaccine formulation has improved vaccine protection, although quadrivalent vaccines are not available worldwide. Reverse genetics has facilitated advancements in the field of vaccine development against influenza B virus. Different strategies have been explored showing promising results that could potentially lead to the development broadly protective influenza B virus vaccines.
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Affiliation(s)
- Stivalis Cardenas-Garcia
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, 953 College Station Rd, Athens, GA, 30602, USA.
| | - C Joaquin Caceres
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, 953 College Station Rd, Athens, GA, 30602, USA
| | - Daniela Rajao
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, 953 College Station Rd, Athens, GA, 30602, USA
| | - Daniel R Perez
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, 953 College Station Rd, Athens, GA, 30602, USA.
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Tsedenbal N, Tsend-Ayush A, Badarch D, Jav S, Pagbajab N. Influenza B viruses circulated during last 5 years in Mongolia. PLoS One 2018; 13:e0206987. [PMID: 30439983 PMCID: PMC6237300 DOI: 10.1371/journal.pone.0206987] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 10/23/2018] [Indexed: 12/17/2022] Open
Abstract
Influenza B virus-caused illness has recently been considered as an urgent public health problem due to substantial morbidity, mortality and life-threatening medical complications. In this study, we have reported the main characteristics of influenza B virus in Mongolia, including prevalence, lineages, suitability with vaccine strains and drug susceptibility against the virus. 15768 specimens were tested by qPCR for detecting influenza viruses. From positive specimens for influenza B virus, the clinical isolates were isolated using MDCK cells. Sequencing analysis, hemagglutination inhibition assay and Neuraminidase inhibitor (NAI) drug susceptibility testing were performed for the clinical isolates. Influenza B virus was around in 3.46% of the samples in Mongolia, and B/Victoria clade-1A and B/Yamagata clade-3 lineages were predominant. Importantly, it was confirmed that the lineages corresponded to the vaccine strains. Moreover, drug susceptibility tests revealed that some Mongolian clinical isolates showed reduced susceptibility to antiviral agents. Interestingly, G104R was identified as a novel mutation, which might have a significant role in drug resistance of the virus. These results describe the characteristics of influenza B viruses that have caused respiratory illness in the population of Mongolia between 2013 and 2017.
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Affiliation(s)
- Naranzul Tsedenbal
- National Influenza Center, National Center for Communicable Diseases, Ministry of Health, Ulaanbaatar, Mongolia
| | - Altansukh Tsend-Ayush
- School of Bio-Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Darmaa Badarch
- National Influenza Center, National Center for Communicable Diseases, Ministry of Health, Ulaanbaatar, Mongolia
| | - Sarantuya Jav
- School of Bio-Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
- * E-mail:
| | - Nymadawa Pagbajab
- National Influenza Center, National Center for Communicable Diseases, Ministry of Health, Ulaanbaatar, Mongolia
- Mongolian Academy of Medical Sciences, Ulaanbaatar, Mongolia
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