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Haralambieva IH, Chen J, Quach HQ, Ratishvili T, Warner ND, Ovsyannikova IG, Poland GA, Kennedy RB. Early B cell transcriptomic markers of measles-specific humoral immunity following a 3 rd dose of MMR vaccine. Front Immunol 2024; 15:1358477. [PMID: 38633249 PMCID: PMC11021587 DOI: 10.3389/fimmu.2024.1358477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/19/2024] [Indexed: 04/19/2024] Open
Abstract
B cell transcriptomic signatures hold promise for the early prediction of vaccine-induced humoral immunity and vaccine protective efficacy. We performed a longitudinal study in 232 healthy adult participants before/after a 3rd dose of MMR (MMR3) vaccine. We assessed baseline and early transcriptional patterns in purified B cells and their association with measles-specific humoral immunity after MMR vaccination using two analytical methods ("per gene" linear models and joint analysis). Our study identified distinct early transcriptional signatures/genes following MMR3 that were associated with measles-specific neutralizing antibody titer and/or binding antibody titer. The most significant genes included: the interleukin 20 receptor subunit beta/IL20RB gene (a subunit receptor for IL-24, a cytokine involved in the germinal center B cell maturation/response); the phorbol-12-myristate-13-acetate-induced protein 1/PMAIP1, the brain expressed X-linked 2/BEX2 gene and the B cell Fas apoptotic inhibitory molecule/FAIM, involved in the selection of high-affinity B cell clones and apoptosis/regulation of apoptosis; as well as IL16 (encoding the B lymphocyte-derived IL-16 ligand of CD4), involved in the crosstalk between B cells, dendritic cells and helper T cells. Significantly enriched pathways included B cell signaling, apoptosis/regulation of apoptosis, metabolic pathways, cell cycle-related pathways, and pathways associated with viral infections, among others. In conclusion, our study identified genes/pathways linked to antigen-induced B cell proliferation, differentiation, apoptosis, and clonal selection, that are associated with, and impact measles virus-specific humoral immunity after MMR vaccination.
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Affiliation(s)
- Iana H. Haralambieva
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Jun Chen
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Tamar Ratishvili
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Nathaniel D. Warner
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Inna G. Ovsyannikova
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States
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Coombes BJ, Ovsyannikova IG, Schaid DJ, Warner ND, Poland GA, Kennedy RB. Polygenic Prediction of Cellular Immune Responses to Mumps Vaccine. medRxiv 2024:2024.02.23.24303277. [PMID: 38464113 PMCID: PMC10925362 DOI: 10.1101/2024.02.23.24303277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
In this report, we provide a follow-up analysis of a previously published genome-wide association study of host genetic variants associated with inter-individual variations in cellular immune responses to mumps vaccine. Here we report the results of a polygenic score (PGS) analysis showing how common variants can predict mumps vaccine response. We found higher PGS for IFNγ, IL-2, and TNFα were predictive of higher post-vaccine IFNγ (p-value = 2e-6), IL-2 (p = 2e-7), and TNFα (p = 0.004) levels, respectively. Control of immune responses after vaccination is complex and polygenic in nature. Our results suggest that the PGS-based approach enables better capture of the combined genetic effects that contribute to mumps vaccine-induced immunity, potentially offering a more comprehensive understanding than traditional single-variant GWAS. This approach will likely have broad utility in studying genetic control of immune responses to other vaccines and to infectious diseases.
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Monroe JM, Quach HQ, Punia S, Enninga EAL, Fedyshyn Y, Girsch JH, Fedyshyn B, Lemens M, Littlefield D, Behl S, Sintim-Aboagye E, Mejia Plazas MC, Yamaoka S, Ebihara H, Pandey A, Correia C, Ung CY, Li H, Vassallo R, Sun J, Johnson EL, Olson JE, Theel ES, Badley AD, Kennedy RB, Theiler RN, Chakraborty R. Vertical Transmission of SARS-CoV-2-Specific Antibodies and Cytokine Profiles in Pregnancy. J Infect Dis 2024; 229:473-484. [PMID: 37786979 DOI: 10.1093/infdis/jiad399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/05/2023] [Accepted: 09/13/2023] [Indexed: 10/04/2023] Open
Abstract
Despite intensive characterization of immune responses after COVID-19 infection and vaccination, research examining protective correlates of vertical transmission in pregnancy are limited. Herein, we profiled humoral and cellular characteristics in pregnant women infected or vaccinated at different trimesters and in their corresponding newborns. We noted a significant correlation between spike S1-specific IgG antibody and its RBD-ACE2 blocking activity (receptor-binding domain-human angiotensin-converting enzyme 2) in maternal and cord plasma (P < .001, R > 0.90). Blocking activity of spike S1-specific IgG was significantly higher in pregnant women infected during the third trimester than the first and second trimesters. Elevated levels of 28 cytokines/chemokines, mainly proinflammatory, were noted in maternal plasma with infection at delivery, while cord plasma with maternal infection 2 weeks before delivery exhibited the emergence of anti-inflammatory cytokines. Our data support vertical transmission of protective SARS-CoV-2-specific antibodies. This vertical antibody transmission and the presence of anti-inflammatory cytokines in cord blood may offset adverse outcomes of inflammation in exposed newborns.
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Affiliation(s)
| | | | - Sohan Punia
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
| | | | - Yaroslav Fedyshyn
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
| | - James H Girsch
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
- Graduate School of Biomedical Sciences
| | | | - Maureen Lemens
- Division of Obstetrics, Department of Obstetrics and Gynecology
| | - Dawn Littlefield
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
| | - Supriya Behl
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
| | - Elise Sintim-Aboagye
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
| | - Maria C Mejia Plazas
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
| | | | | | - Akhilesh Pandey
- Division of Clinical Biochemistry and Immunology, Department of Laboratory Medicine and Pathology, Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota
- Center for Molecular Medicine, National Institute of Mental Health and Neurosciences, Bangalore
- Department of Community Medicine, Manipal Academy of Higher Education, Manipal, India
| | - Cristina Correia
- Department of Molecular Pharmacology and Experimental Therapeutics
| | - Choong Yong Ung
- Department of Molecular Pharmacology and Experimental Therapeutics
| | - Hu Li
- Department of Molecular Pharmacology and Experimental Therapeutics
| | - Robert Vassallo
- Thoracic Diseases Research Unit, Division of Pulmonary and Critical Care Medicine, Department of Medicine, Department of Immunology, College of Medicine and Science, Mayo Clinic, Rochester, Minnesota
| | - Jie Sun
- Thoracic Diseases Research Unit, Division of Pulmonary and Critical Care Medicine, Department of Medicine, Department of Immunology, College of Medicine and Science, Mayo Clinic, Rochester, Minnesota
- Carter Immunology Center, School of Medicine, University of Virginia, Charlottesville
| | - Erica L Johnson
- Department of Microbiology, Biochemistry, and Immunology, Morehouse School of Medicine, Atlanta, Georgia
| | | | - Elitza S Theel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology
| | - Andrew D Badley
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | | | - Regan N Theiler
- Division of Obstetrics, Department of Obstetrics and Gynecology
| | - Rana Chakraborty
- Children Research Center, Division of Pediatric Infectious Diseases, Department of Pediatric and Adolescent Medicine
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Haralambieva IH, Monroe JM, Ovsyannikova IG, Warner ND, Grill DE, Poland GA, Kennedy RB. Restricted Omicron-specific cross-variant memory B-cell immunity after a 3rd dose/booster of monovalent Wuhan-Hu-1-containing COVID-19 mRNA vaccine. Vaccine 2024; 42:912-917. [PMID: 38233288 PMCID: PMC10922459 DOI: 10.1016/j.vaccine.2024.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/19/2024]
Abstract
The responsiveness/cross-binding of vaccine-induced memory B cells/MBCs to previous and emerging divergent SARS-CoV-2 variants (e.g., Omicron) is understudied. In this longitudinal study subjects receiving two or three doses of monovalent ancestral strain-containing COVID-19 mRNA vaccine were evaluated. In contrast to others, we observed significantly lower frequencies of MBCs reactive to the receptor-binding domain/RBD, the N-terminal domain/NTD, and the S1 of Omicron/BA.1, compared to Wuhan and Delta, even after a 3rd vaccine dose/booster. Our study is a proof of concept that MBC cross-reactivity to variants with greater sequence divergence from the vaccine strain may be overestimated and suggests that these variants may exhibit immune escape with reduced recognition by circulating pre-existing MBCs upon infection.
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Affiliation(s)
- Iana H Haralambieva
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Jonathon M Monroe
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Nathaniel D Warner
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Diane E Grill
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States.
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Ratishvili T, Quach HQ, Haralambieva IH, Suryawanshi YR, Ovsyannikova IG, Kennedy RB, Poland GA. A multifaceted approach for identification, validation, and immunogenicity of naturally processed and in silico-predicted highly conserved SARS-CoV-2 peptides. Vaccine 2024; 42:162-174. [PMID: 38105139 DOI: 10.1016/j.vaccine.2023.12.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 11/19/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
SARS-CoV-2 remains a major global public health concern. Antibody waning and immune escape variant emergence necessitate the development of next generation vaccines that induce cross-reactive durable immune responses. T cell responses to SARS-CoV-2 demonstrate higher conservation, antigenic breadth, and longevity than antibody responses. Therefore, we sought to identify pathogen-derived T cell epitopes for a potential peptide-based vaccine. We pursued an approach leveraging: 1) liquid chromatography and tandem mass spectrometry (LC-MS/MS)-based identification of peptides from ancestral SARS-CoV-2-infected cell lines, 2) epitope prediction algorithms, and 3) overlapping peptide libraries. From this strategy, we identified 380 unique SARS-CoV-2-derived peptide sequences, including 53 antigenic HLA class I and class II peptides from multiple structural and non-structural/accessory viral proteins. These peptide sequences were highly conserved across variants of concern/interest (VoC/VoIs), and are estimated to achieve coverage of >96% of the world population. Our findings validate this discovery pipeline for peptide identification and immunogenicity testing, and are a crucial step toward the development of a next-generation multi-epitope SARS-CoV-2 peptide vaccine, and a novel vaccine platform methodology.
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Affiliation(s)
- Tamar Ratishvili
- Mayo Clinic Vaccine Research Group, Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Iana H Haralambieva
- Mayo Clinic Vaccine Research Group, Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Yogesh R Suryawanshi
- Mayo Clinic Vaccine Research Group, Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA.
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Rasche MM, Kaufmann EC, Ratishvili T, Swanson IM, Ovsyannikova IG, Kennedy RB. Detection of SARS-CoV-2-Specific Cells Utilizing Whole Proteins and/or Peptides in Human PBMCs Using IFN-ƴ ELISPOT Assay. Methods Mol Biol 2024; 2768:117-133. [PMID: 38502391 DOI: 10.1007/978-1-0716-3690-9_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
SARS-CoV-2 continues to threaten global public health, making COVID-19 immunity studies of utmost importance. Waning of antibody responses postinfection and/or vaccination and the emergence of immune escape variants have been ongoing challenges in mitigating SARS-CoV-2 morbidity and mortality. While a tremendous amount of work has been done to characterize humoral immune responses to SARS-CoV-2 virus and vaccines, cellular immunity, mediated by T cells, is critical for efficient viral control and protection and demonstrates high durability and cross-reactivity to coronavirus variants. Thus, ELISPOT, a standard assay for antigen-specific cellular immune response assessment, allows us to evaluate SARS-CoV-2-specific T-cell response by quantifying the frequency of SARS-CoV-2-specific cytokine-secreting cells in vitro. We have outlined a detailed procedure to study T-cell recall responses to SARS-CoV-2 in human peripheral blood mononuclear cells (PBMCs) following infection and/or vaccination using an optimized IFN-γ ELISPOT assay. Our methodologies can be adapted to assess other cytokines and are a useful tool for studying other viral pathogen and/or peptide-specific T-cell responses.
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Affiliation(s)
| | - Ella C Kaufmann
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | - Tamar Ratishvili
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | - Ilya M Swanson
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | | | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA.
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Swanson IM, Haralambieva IH, Rasche MM, Ovsyannikova IG, Kennedy RB. Frequencies of SARS-CoV-2 Spike Protein-Specific Memory B Cells in Human PBMCs, Quantified by ELISPOT Assay. Methods Mol Biol 2024; 2768:153-166. [PMID: 38502393 DOI: 10.1007/978-1-0716-3690-9_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Vaccination against SARS-CoV-2 with coronavirus vaccines that elicit protective immune responses is critical to the prevention of severe disease and mortality associated with SARS-CoV-2 infection. Understanding the adaptive immune responses to SARS-CoV-2 infection and/or vaccination will continue to aid in the development of next-generation vaccines. Studies have shown the important role of SARS-CoV-2-specific antibodies for both disease resolution and prevention of COVID-19 serious sequelae following vaccination. However, antibody responses are short-lived, highlighting the importance of studying antigen-specific B-cell responses to better understand durable immunity and immunologic memory. Since the spike protein is the main target of antibody-producing B cells, we developed a SARS-CoV-2 memory B cell ELISPOT assay to measure the frequencies of spike-specific B cells after COVID-19 infection and/or vaccination. Here, we describe in detail the methodology for using this ELISPOT assay to quantify SARS-CoV-2 spike-specific memory B cells produced by infection and/or vaccination in human PBMC samples. Application of this assay may help better understand and predict SARS-CoV-2 recall immune responses and to develop potential B cell correlates of protection at the methodological level.
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Affiliation(s)
- Ilya M Swanson
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA.
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Quach HQ, Warner ND, Ovsyannikova IG, Covassin N, Poland GA, Somers V, Kennedy RB. Excessive daytime sleepiness is associated with impaired antibody response to influenza vaccination in older male adults. Front Cell Infect Microbiol 2023; 13:1229035. [PMID: 38149010 PMCID: PMC10749933 DOI: 10.3389/fcimb.2023.1229035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023] Open
Abstract
Background The reduced effectiveness of standard-dose influenza vaccines in persons ≥65 years of age led to the preferential recommendation to use high-dose (HDFlu) or MF59-adjuvanted (MF59Flu) vaccines for this age group. Sleep is an important modulator of immune responses to vaccines and poor sleep health is common in older adults. However, potential effects of poor sleep health on immune responses to influenza vaccination in older adults remain largely unknown. Methods We conducted a cohort study of 210 healthy participants age ≥65 years, who received either seasonal high-dose (HDFlu) or MF59-adjuvanted (MF59Flu) influenza vaccine. We assessed sleep characteristics in this cohort by standardized questionnaires and measured the antibody titer against influenza A/H3N2 virus in serum of study participants by hemagglutination inhibition assay on the day of immunization and 28 days thereafter. We then assessed the association between sleep characteristics and antibody titers. Results Our results demonstrated that male, but not female, study participants with excessive daytime sleepiness had an impaired influenza A/H3N2-specific antibody response at Day 28 post-vaccination. No other associations were found between antibody titer and other sleep characteristics, including sleep quality and obstructive sleep apnea. Conclusion Our results provide an additional and easily measured variable explaining poor vaccine effectiveness in older adults. Our results support that gaining sufficient sleep is a simple non-vaccine interventional approach to improve influenza immune responses in older adults. Our findings extend the literature on the negative influence of excessive daytime sleepiness on immune responses to influenza vaccination in older male adults.
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Affiliation(s)
- Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Nathaniel D. Warner
- Department of Quantitative Health Services, Mayo Clinic, Rochester, MN, United States
| | | | - Naima Covassin
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, United States
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Virend K. Somers
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, United States
| | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
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Ovsyannikova IG, Haralambieva IH, Schaid DJ, Warner ND, Poland GA, Kennedy RB. Genome-wide determinants of cellular immune responses to mumps vaccine. Vaccine 2023; 41:6579-6588. [PMID: 37778899 DOI: 10.1016/j.vaccine.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/03/2023] [Accepted: 09/01/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND We have previously described genetic polymorphisms in candidate genes that are associated with inter-individual variations in antibody responses to mumps vaccination. To expand upon our previous work, we performed a genome-wide association study (GWAS) to discover host genetic variants associated with mumps vaccine-induced cellular immune responses. METHODS We performed a GWAS of mumps-specific immune response outcomes (11 secreted cytokines/chemokines) in a cohort of 1,406 subjects. RESULTS Among the 11 cytokine/chemokines we studied, four (IFN-γ, IL-2, IL-1β, and TNFα) demonstrated GWAS signals reaching genome-wide significance (p < 5 × 10-8). A genomic region (encoding Sialic acid-binding immunoglobulin-type lectins/SIGLEC) located on chromosome 19q13 (p < 5 × 10-8) was associated with both IL-1β and TNFα responses. The SIGLEC5/SIGLEC14 region contained 11 statistically significant single nucleotide polymorphisms (SNPs), including the intronic SIGLEC5 rs872629 (p = 1.3E-11) and rs1106476 (p = 1.32E-11) whose alternate alleles were significantly associated with decreased levels of mumps-specific IL-1β (rs872629, p = 1.77E-09; rs1106476, p = 1.78E-09) and TNFα (rs872629, p = 1.3E-11; rs1106476, p = 1.32E-11) production. CONCLUSIONS Our results suggest that SNPs in the SIGLEC5/SIGLEC14 genes play a role in cellular and inflammatory immune responses to mumps vaccination. These findings motivate further research into the functional roles of SIGLEC genes in the regulation of mumps vaccine-induced immunity.
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Affiliation(s)
| | | | - Daniel J Schaid
- Division of Computational Biology, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Nathaniel D Warner
- Division of Computational Biology, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
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Quach HQ, Goergen KM, Grill DE, Haralambieva IH, Ovsyannikova IG, Poland GA, Kennedy RB. Virus-specific and shared gene expression signatures in immune cells after vaccination in response to influenza and vaccinia stimulation. Front Immunol 2023; 14:1168784. [PMID: 37600811 PMCID: PMC10436507 DOI: 10.3389/fimmu.2023.1168784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 07/18/2023] [Indexed: 08/22/2023] Open
Abstract
Background In the vaccine era, individuals receive multiple vaccines in their lifetime. Host gene expression in response to antigenic stimulation is usually virus-specific; however, identifying shared pathways of host response across a wide spectrum of vaccine pathogens can shed light on the molecular mechanisms/components which can be targeted for the development of broad/universal therapeutics and vaccines. Method We isolated PBMCs, monocytes, B cells, and CD8+ T cells from the peripheral blood of healthy donors, who received both seasonal influenza vaccine (within <1 year) and smallpox vaccine (within 1 - 4 years). Each of the purified cell populations was stimulated with either influenza virus or vaccinia virus. Differentially expressed genes (DEGs) relative to unstimulated controls were identified for each in vitro viral infection, as well as for both viral infections (shared DEGs). Pathway enrichment analysis was performed to associate identified DEGs with KEGG/biological pathways. Results We identified 2,906, 3,888, 681, and 446 DEGs in PBMCs, monocytes, B cells, and CD8+ T cells, respectively, in response to influenza stimulation. Meanwhile, 97, 120, 20, and 10 DEGs were identified as gene signatures in PBMCs, monocytes, B cells, and CD8+ T cells, respectively, upon vaccinia stimulation. The majority of DEGs identified in PBMCs were also found in monocytes after either viral stimulation. Of the virus-specific DEGs, 55, 63, and 9 DEGs occurred in common in PBMCs, monocytes, and B cells, respectively, while no DEGs were shared in infected CD8+ T cells after influenza and vaccinia. Gene set enrichment analysis demonstrated that these shared DEGs were over-represented in innate signaling pathways, including cytokine-cytokine receptor interaction, viral protein interaction with cytokine and cytokine receptor, Toll-like receptor signaling, RIG-I-like receptor signaling pathways, cytosolic DNA-sensing pathways, and natural killer cell mediated cytotoxicity. Conclusion Our results provide insights into virus-host interactions in different immune cells, as well as host defense mechanisms against viral stimulation. Our data also highlights the role of monocytes as a major cell population driving gene expression in ex vivo PBMCs in response to viral stimulation. The immune response signaling pathways identified in this study may provide specific targets for the development of novel virus-specific therapeutics and improved vaccines for vaccinia and influenza. Although influenza and vaccinia viruses have been selected in this study as pathogen models, this approach could be applicable to other pathogens.
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Affiliation(s)
- Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Krista M. Goergen
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Diane E. Grill
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Iana H. Haralambieva
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Inna G. Ovsyannikova
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN, United States
| | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN, United States
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Poland GA, Kennedy RB. The use of AI-generated text and scientific publishing: Issues and a way forward. Vaccine 2023; 41:4065-4066. [PMID: 37336615 DOI: 10.1016/j.vaccine.2023.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
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12
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Ovsyannikova IG, Haralambieva IH, Schaid DJ, Warner ND, Poland GA, Kennedy RB. Genome-Wide Determinants of Cellular Immune Responses to Mumps Vaccine. medRxiv 2023:2023.04.27.23289213. [PMID: 37205333 PMCID: PMC10187346 DOI: 10.1101/2023.04.27.23289213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Background We have previously described genetic polymorphisms in candidate genes that are associated with inter-individual variations in antibody responses to mumps vaccination. To expand upon our previous work, we performed a genome-wide association study (GWAS) to discover host genetic variants associated with mumps vaccine-induced cellular immune responses. Methods We performed a GWAS of mumps-specific immune response outcomes (11 secreted cytokines/chemokines) in a cohort of 1,406 subjects. Results Among the 11 cytokine/chemokines we studied, four (IFN-γ, IL-2, IL-1β, and TNFα) demonstrated GWAS signals reaching genome-wide significance (p<5 x 10 -8 ). A genomic region (encoding Sialic acid-binding immunoglobulin-type lectins/SIGLEC) located on chromosome 19q13 (p<5×10 -8 ) was associated with both IL-1β and TNFα responses. The SIGLEC5/SIGLEC14 region contained 11 statistically significant single nucleotide polymorphisms (SNPs), including the intronic SIGLEC5 rs872629 (p=1.3E-11) and rs1106476 (p=1.32E-11) whose alternate alleles were significantly associated with decreased levels of mumps-specific IL-1β (rs872629, p=1.77E-09; rs1106476, p=1.78E-09) and TNFα (rs872629, p=1.3E-11; rs1106476, p=1.32E-11) production. Conclusions Our results suggest that SNPs in the SIGLEC5/SIGLEC14 genes play a role in cellular and inflammatory immune responses to mumps vaccination. These findings motivate further research into the functional roles of SIGLEC genes in the regulation of mumps vaccine-induced immunity.
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Passerini M, Ratishvili T, Monroe JM, Temesgen Z, Witzig TE, Kay NE, Kennedy RB, Parikh SA. Functional humoral and cellular response of monovalent COVID-19-vaccines against Omicron BA.2 variant of SARS-CoV-2 in patients with chronic lymphocytic leukemia. Leuk Lymphoma 2023; 64:874-883. [PMID: 36908110 DOI: 10.1080/10428194.2023.2183730] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
We designed a prospective study to evaluate the humoral (using a surrogate virus neutralization test) and cellular (using an IFN-γ ELISpot) immune response among patients with chronic lymphocytic leukemia (CLL) against Wuhan-Hu-1 and Omicron BA.2 strains of SARS-CoV-2, after mRNA-based vaccination. The proportion of patients with a functional humoral response was higher among untreated CLL patients compared to treated CLL patients against both Wuhan-Hu-1 and Omicron BA.2 after the second and the third dose of vaccination, and at 12 months after the first dose. The proportion of positive cellular response against the peptide pool covering the full-length Wuhan-Hu-1 spike protein was similar between untreated and treated CLL patients at all three timepoints. The cellular response to the mutated regions of BA.2 spike protein was lower than the response to the corresponding regions in the ancestral spike after the second dose, but this difference was eliminated after the third dose.
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Affiliation(s)
- Matteo Passerini
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, MN, USA
| | - Tamar Ratishvili
- Department of Internal Medicine, Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | - Jonathon M Monroe
- Department of Internal Medicine, Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | - Zelalem Temesgen
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, MN, USA
| | - Thomas E Witzig
- Department of Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Neil E Kay
- Department of Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Richard B Kennedy
- Department of Internal Medicine, Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | - Sameer A Parikh
- Department of Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
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Quach HQ, Chen J, Monroe JM, Ratishvili T, Warner ND, Grill DE, Haralambieva IH, Ovsyannikova IG, Poland GA, Kennedy RB. The Influence of Sex, Body Mass Index, and Age on Cellular and Humoral Immune Responses Against Measles After a Third Dose of Measles-Mumps-Rubella Vaccine. J Infect Dis 2022; 227:141-150. [PMID: 35994504 DOI: 10.1093/infdis/jiac351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/12/2022] [Accepted: 08/19/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND A third dose of measles-mumps-rubella vaccine (MMR3) is recommended in mumps outbreak scenarios, but the immune response and the need for widespread use of MMR3 remain uncertain. Herein, we characterized measles-specific immune responses to MMR3 in a cohort of 232 healthy subjects. METHODS Serum and peripheral blood mononuclear cells (PBMCs) were sampled at day 0 and day 28 after MMR3. Measles-specific binding and neutralizing antibodies were quantified in sera by enzyme-linked immunosorbent assay and a microneutralization assay, respectively. PBMCs were stimulated with inactivated measles virus, and the release of cytokines/chemokines was assessed by a multiplex assay. Demographic variables of subjects were examined for potential correlations with immune outcomes. RESULTS Of the study participants, 95.69% and 100% were seropositive at day 0 and day 28, respectively. Antibody avidity significantly increased from 38.08% at day 0 to 42.8% at day 28 (P = .00026). Neutralizing antibodies were significantly enhanced, from 928.7 at day 0 to 1289.64 mIU/mL at day 28 (P = .0001). Meanwhile, cytokine/chemokine responses remained largely unchanged. Body mass index was significantly correlated with the levels of inflammatory cytokines/chemokines. CONCLUSIONS Measles-specific humoral immune responses, but not cellular responses, were enhanced after MMR3 receipt, extending current understanding of immune responses to MMR3 and supporting MMR3 administration to seronegative or high-risk individuals.
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Affiliation(s)
- Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Jun Chen
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Jonathon M Monroe
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Tamar Ratishvili
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Nathaniel D Warner
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Diane E Grill
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Iana H Haralambieva
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Monroe JM, Punia S, Quach HQ, Enninga EA, Fedyshyn Y, Fedyshyn B, Lemens M, Littlefield D, Sintim-Aboagye E, Mejia Plazas MC, Yamaoka S, Ebihara H, Pandey A, Sun J, Johnson EL, Kennedy RB, Theiler RN, Chakraborty R. 2129. Maternal Transmission of SARS-CoV-2-specific Antibodies, but not Cytokines/Chemokines to Neonates Following Infection and Vaccination During Pregnancy. Open Forum Infect Dis 2022. [DOI: 10.1093/ofid/ofac492.1750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
Background
Despite extensive studies of human immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and coronavirus disease 2019 (COVID-19) vaccination, research examining protective correlates of vertical transmission following maternal exposure in pregnancy remain limited. Here, we characterized antibody and cytokine responses in maternal and cord blood following infection or vaccination at various timepoints during gestation.
Methods
Spike S1 protein-specific binding antibodies and antibodies capable of blocking the interaction between the receptor binding domain (RBD) and the angiotensin converting enzyme 2 (ACE2) were measured in maternal and cord blood by ELISA. Serum concentrations of 74 cytokines/chemokines were measured by multiplex assay. Humoral responses and cytokine levels from matched maternal and fetal cord sera were compared and examined for potential correlations.
Results
We observed a highly significant correlation between Spike S1-specific antibody titer and RBD-ACE2 blocking antibody activity between maternal and fetal cord serum (p < 2.2e-16, R > 0.90). Blocking antibody activity was significantly higher for mothers infected during the 3rd trimester compared to earlier trimesters; however, vaccinated mothers developed and transferred higher antibody titers with greater RBD-ACE2 blocking antibody activity to their neonates than infected mothers. Furthermore, vaccine-induced Spike S1 IgG transfer ratios (fetal cord/maternal) were significantly higher than those induced by infection (p = 0.002). Multiplex assay showed significantly elevated levels of 33 cytokines/chemokines, mainly pro-inflammatory in infected maternal serum samples, while the paired fetal cord samples exhibited an anti-inflammatory cytokine predominance.
Conclusion
Our data support selective vertical transmission of potentially protective humoral responses against SARS-CoV-2, especially following vaccination in the 3rd trimester. The anti-inflammatory cytokine predominance in cord blood that persists despite maternal SARS-CoV-2 infection may offset the adverse outcomes of inflammation in pregnancy for the neonate.
Disclosures
All Authors: No reported disclosures.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Hideki Ebihara
- National Institute of Infectious Diseases , Shinjuku-ku, Tokyo , Japan
| | | | - Jie Sun
- University of Virginia School of Medicine , Charlottesville, Virginia
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Haralambieva IH, Quach HQ, Ovsyannikova IG, Goergen KM, Grill DE, Poland GA, Kennedy RB. T Cell Transcriptional Signatures of Influenza A/H3N2 Antibody Response to High Dose Influenza and Adjuvanted Influenza Vaccine in Older Adults. Viruses 2022; 14:v14122763. [PMID: 36560767 PMCID: PMC9786771 DOI: 10.3390/v14122763] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Older adults experience declining influenza vaccine-induced immunity and are at higher risk of influenza and its complications. For this reason, high dose (e.g., Fluzone) and adjuvanted (e.g., Fluad) vaccines are preferentially recommended for people age 65 years and older. However, T cell transcriptional activity shaping the humoral immune responses to Fluzone and Fluad vaccines in older adults is still poorly understood. We designed a study of 234 older adults (≥65 years old) who were randomly allocated to receive Fluzone or Fluad vaccine and provided blood samples at baseline and at Day 28 after immunization. We measured the humoral immune responses (hemagglutination inhibition/HAI antibody titer) to influenza A/H3N2 and performed mRNA-Seq transcriptional profiling in purified CD4+ T cells, in order to identify T cell signatures that might explain differences in humoral immune response by vaccine type. Given the large differences in formulation (higher antigen dose vs adjuvant), our hypothesis was that each vaccine elicited a distinct transcriptomic response after vaccination. Thus, the main focus of our study was to identify the differential gene expression influencing the antibody titer in the two vaccine groups. Our analyses identified three differentially expressed, functionally linked genes/proteins in CD4+ T cells: the calcium/calmodulin dependent serine/threonine kinase IV (CaMKIV); its regulator the TMEM38B/transmembrane protein 38B, involved in maintenance of intracellular Ca2+ release; and the transcriptional coactivator CBP/CREB binding protein, as regulators of transcriptional activity/function in CD4+ T cells that impact differences in immune response by vaccine type. Significantly enriched T cell-specific pathways/biological processes were also identified that point to the importance of genes/proteins involved in Th1/Th2 cell differentiation, IL-17 signaling, calcium signaling, Notch signaling, MAPK signaling, and regulation of TRP cation Ca2+ channels in humoral immunity after influenza vaccination. In summary, we identified the genes/proteins and pathways essential for cell activation and function in CD4+ T cells that are associated with differences in influenza vaccine-induced humoral immunity by vaccine type. These findings provide an additional mechanistic perspective for achieving protective immunity in older adults.
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Affiliation(s)
| | - Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Krista M. Goergen
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Diane E. Grill
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
| | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
- Correspondence: ; Tel.: +1-(507)-284-4968; Fax: +1-(507)-266-4716
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Vachon CM, Norman AD, Prasad K, Jensen D, Schaeferle GM, Vierling KL, Sherden M, Majerus MR, Bews KA, Heinzen EP, Hebl A, Yost KJ, Kennedy RB, Theel ES, Ghosh A, Fries M, Wi CI, Juhn YJ, Sampathkumar P, Morice WG, Rocca WA, Tande AJ, Cerhan JR, Limper AH, Ting HH, Farrugia G, Carter RE, Finney Rutten LJ, Jacobson RM, St. Sauver J. Rates of Asymptomatic COVID-19 Infection and Associated Factors in Olmsted County, Minnesota, in the Prevaccination Era. Mayo Clin Proc Innov Qual Outcomes 2022; 6:605-617. [PMID: 36277251 PMCID: PMC9578336 DOI: 10.1016/j.mayocpiqo.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Objective To estimate rates and identify factors associated with asymptomatic COVID-19 in the population of Olmsted County during the prevaccination era. Patients and Methods We screened first responders (n=191) and Olmsted County employees (n=564) for antibodies to SARS-CoV-2 from November 1, 2020 to February 28, 2021 to estimate seroprevalence and asymptomatic infection. Second, we retrieved all polymerase chain reaction (PCR)-confirmed COVID-19 diagnoses in Olmsted County from March 2020 through January 2021, abstracted symptom information, estimated rates of asymptomatic infection and examined related factors. Results Twenty (10.5%; 95% CI, 6.9%-15.6%) first responders and 38 (6.7%; 95% CI, 5.0%-9.1%) county employees had positive antibodies; an additional 5 (2.6%) and 10 (1.8%) had prior positive PCR tests per self-report or medical record, but no antibodies detected. Of persons with symptom information, 4 of 20 (20%; 95% CI, 3.0%-37.0%) first responders and 10 of 39 (26%; 95% CI, 12.6%-40.0%) county employees were asymptomatic. Of 6020 positive PCR tests in Olmsted County with symptom information between March 1, 2020, and January 31, 2021, 6% (n=385; 95% CI, 5.8%-7.1%) were asymptomatic. Factors associated with asymptomatic disease included age (0-18 years [odds ratio {OR}, 2.3; 95% CI, 1.7-3.1] and >65 years [OR, 1.40; 95% CI, 1.0-2.0] compared with ages 19-44 years), body mass index (overweight [OR, 0.58; 95% CI, 0.44-0.77] or obese [OR, 0.48; 95% CI, 0.57-0.62] compared with normal or underweight) and tests after November 20, 2020 ([OR, 1.35; 95% CI, 1.13-1.71] compared with prior dates). Conclusion Asymptomatic rates in Olmsted County before COVID-19 vaccine rollout ranged from 6% to 25%, and younger age, normal weight, and later tests dates were associated with asymptomatic infection.
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Affiliation(s)
- Celine M. Vachon
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Aaron D. Norman
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Kavita Prasad
- Integrative Medicine, Zumbro Valley Health Center, Mayo Clinic, Rochester, MN
| | - Dan Jensen
- Department of Health, Housing and Human Services Administration, Olmsted County Public Health, Mayo Clinic, Rochester, MN
| | - Gavin M. Schaeferle
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN
| | - Kristy L. Vierling
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN
| | - Meaghan Sherden
- Department of Epidemiology, Surveillance and Preparedness Team, Olmsted County Public Health, Mayo Clinic, Rochester, MN
| | | | - Katherine A. Bews
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN
| | - Ethan P. Heinzen
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN
| | - Amy Hebl
- Department of Human Resources, Olmsted County, Mayo Clinic, Rochester, MN
| | - Kathleen J. Yost
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Richard B. Kennedy
- Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN
| | - Elitza S. Theel
- Department of Laboratory Medicine and Pathology, Division of Clinical Microbiology, Mayo Clinic, Rochester, MN
| | - Aditya Ghosh
- Department of Internal Medicine, Northeast Georgia Medical Center, Gainesville, GA
| | | | - Chung-Il Wi
- Department of Precision Population Science Lab, Mayo Clinic, Rochester, MN
| | - Young J. Juhn
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN
| | - Priya Sampathkumar
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, MN
| | - William G. Morice
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, MN
| | - Walter A. Rocca
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
- Department of Neurology and Women’s Health Research Center, Mayo Clinic, Rochester, MN
| | - Aaron J. Tande
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, MN
| | - James R. Cerhan
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Andrew H. Limper
- Department of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN
| | - Henry H. Ting
- Department of Cardiology, Emory University, Atlanta, GA
| | - Gianrico Farrugia
- Division of Gastroenterology & Hepatology, Department of Medicine, Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN
| | - Rickey E. Carter
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL
| | | | - Robert M. Jacobson
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN
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Poland GA, Kennedy RB, Tosh PK. Prevention of monkeypox with vaccines: a rapid review. Lancet Infect Dis 2022; 22:e349-e358. [PMID: 36116460 PMCID: PMC9628950 DOI: 10.1016/s1473-3099(22)00574-6] [Citation(s) in RCA: 81] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 01/09/2023]
Abstract
The largest outbreak of monkeypox in history began in May, 2022, and has rapidly spread across the globe ever since. The purpose of this Review is to briefly describe human immune responses to orthopoxviruses; provide an overview of the vaccines available to combat this outbreak; and discuss the various clinical data and animal studies evaluating protective immunity to monkeypox elicited by vaccinia virus-based smallpox vaccines, address ongoing concerns regarding the outbreak, and provide suggestions for the appropriate use of vaccines as an outbreak control measure. Data showing clinical effectiveness (~85%) of smallpox vaccines against monkeypox come from surveillance studies conducted in central Africa in the 1980s and later during outbreaks in the same area. These data are supported by a large number of animal studies (primarily in non-human primates) with live virus challenge by various inoculation routes. These studies uniformly showed a high degree of protection and immunity against monkeypox virus following vaccination with various smallpox vaccines. Smallpox vaccines represent an effective countermeasure that can be used to control monkeypox outbreaks. However, smallpox vaccines do cause side-effects and the replication-competent, second-generation vaccines have contraindications. Third-generation vaccines, although safer for use in immunocompromised populations, require two doses, which is an impediment to rapid outbreak response. Lessons learned from the COVID-19 pandemic should be used to inform our collective response to this monkeypox outbreak and to future outbreaks.
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Affiliation(s)
| | | | - Pritish K Tosh
- Mayo Vaccine Research Group, Mayo Clinic, Rochester, MN, USA,Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, MN, USA
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Quach HQ, Ovsyannikova IG, Grill DE, Warner ND, Poland GA, Kennedy RB. Seroprevalence of Measles Antibodies in a Highly MMR-Vaccinated Population. Vaccines (Basel) 2022; 10:1859. [PMID: 36366367 PMCID: PMC9698789 DOI: 10.3390/vaccines10111859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 09/21/2023] Open
Abstract
As an extremely contagious pathogen, a high rate of vaccine coverage and the durability of vaccine-induced immunity are key factors to control and eliminate measles. Herein, we assessed the seroprevalence of antibodies specific to measles in a cohort of 1393 adults (20-44 years old). ELISA results showed a nontrivial proportion of 37.6% study subjects being negative for measles immunoglobulin G (IgG). We also found significant influences of sex and age of the study cohort on the IgG level. Our findings suggest that even within a highly vaccinated population, a subset of individuals may still have sub-optimal immunity against measles and potentially be susceptible during any future measles outbreaks.
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Affiliation(s)
- Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Division of General of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Inna G. Ovsyannikova
- Mayo Clinic Vaccine Research Group, Division of General of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Diane E. Grill
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Nathaniel D. Warner
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN 55905, USA
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Division of General of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Division of General of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
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Quach HQ, Kennedy RB. Enhancing Immunogenicity of Influenza Vaccine in the Elderly through Intradermal Vaccination: A Literature Analysis. Viruses 2022; 14:v14112438. [PMID: 36366536 PMCID: PMC9698533 DOI: 10.3390/v14112438] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/25/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Aging and immunosenescence lead to a gradual decline in immune responses in the elderly and the immunogenicity of influenza vaccines in this age group is sub-optimal. Several approaches have been explored to enhance the immunogenicity of influenza vaccines in the elderly, including incorporating vaccine adjuvant, increasing antigen dosage, and changing the route of vaccine administration. METHOD We systematically compared the immunogenicity and safety of influenza vaccines administered by intradermal (ID) route and either intramuscular (IM) or subcutaneous (SC) routes in older adults aged ≥ 65. RESULTS Of 17 studies included in this analysis, 3 studies compared the immunogenicity of ID vaccination to that of SC vaccination and 14 studies compared ID and IM vaccinations. ID vaccination was typically more immunogenic than both IM and SC routes at the same dosage. Importantly, a minimum of 3 µg of hemagglutinin antigen could be formulated in an ID influenza vaccine without a significant loss of immunogenicity. ID administration of standard-dose, unadjuvanted influenza vaccine was as immunogenic as IM injection of adjuvanted influenza vaccine. Waning of influenza-specific immunity was significant after 6 months, but there was no difference in waning immunity between vaccinations in ID, IM, or SC routes. While ID vaccination elicited local adverse reactions more frequently than other routes, these reactions were mild and lasted for no more than 3 days. CONCLUSIONS We conclude that ID vaccination is superior to IM or SC routes and may be a suitable approach to compensate for the reduced immunogenicity observed in elderly adults. We also conclude that the main benefit of ID influenza vaccine lies in its dose-sparing effect. Additional research is still needed to further develop a more immunogenic ID influenza vaccine.
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Monroe JM, Haralambieva IH, Warner ND, Grill DE, Quach HQ, Kennedy RB. Longitudinal Antibody Titer, Avidity, and Neutralizing Responses after SARS-CoV-2 Infection. Heliyon 2022; 8:e11676. [PMID: 36439767 PMCID: PMC9675084 DOI: 10.1016/j.heliyon.2022.e11676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/05/2022] [Accepted: 11/10/2022] [Indexed: 11/21/2022] Open
Abstract
While waning immunity and SARS-CoV-2 variant immune escape continue to result in high infection rates worldwide, associations between longitudinal quantitative, qualitative, and functional humoral immune responses after SARS-CoV-2 infection remain unclear. In this study, we found significant waning of antibody against Spike S1 (R = −0.32, p = 0.035) and N protein (R = −0.39, p = 0.008), while RBD antibody moderately decreased (R = −0.19, p = 0.203). Likewise, neutralizing antibody titer (ND50) waned over time (R = −0.46, p = 0.001). In contrast, antibody avidity increased significantly over time for Spike S1 (R = 0.62, p = 6.0e−06), RBD (R = 0.54, p = 2.0e−04), and N (R = 0.33, p = 0.025) antibodies. Across all humoral responses, ND50 strongly associated with Spike S1 (R = 0.85, p = 2.7e−13) and RBD (R = 0.78, p = 2.9e−10) antibodies. Our findings provide longitudinal insight into humoral immune responses after infection and imply the potential of Spike S1/RBD antibody titer as surrogate correlates of protection.
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Quach HQ, Ovsyannikova IG, Poland GA, Kennedy RB. Evaluating immunogenicity of pathogen-derived T-cell epitopes to design a peptide-based smallpox vaccine. Sci Rep 2022; 12:15401. [PMID: 36100624 PMCID: PMC9470075 DOI: 10.1038/s41598-022-19679-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/01/2022] [Indexed: 11/09/2022] Open
Abstract
Despite the eradication in 1980, developing safe and effective smallpox vaccines remains an active area of research due to the recent outbreaks and the public health concern that smallpox viruses could be used as bioterrorism weapons. Identifying immunogenic peptides (epitopes) would create a foundation for the development of a robust peptide-based vaccine. We previously identified a library of naturally-processed, human leukocyte antigen class I-presented vaccinia-derived peptides from infected B cells. In the current study, we evaluated the immunogenicity of these T-cell peptides in both transgenic mouse models and human peripheral blood mononuclear cells. A vaccine based on four selected peptides provided 100% protection against a lethal viral challenge. In addition, responses from memory T cells remained unchanged up to five months. Our results validate a practical approach for identifying and verifying immunogenic peptides for vaccine development and highlight the potential of peptide-based vaccines for various infectious diseases.
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Affiliation(s)
- Huy Quang Quach
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, 55905, USA
| | | | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, 55905, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, 55905, USA.
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Quach HQ, Ovsyannikova IG, Poland GA, Kennedy RB. Detection of SARS-CoV-2 peptide-specific antibodies in Syrian hamster serum by ELISA. J Immunol Methods 2022; 505:113275. [PMID: 35439529 PMCID: PMC9013014 DOI: 10.1016/j.jim.2022.113275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 12/16/2022]
Abstract
Golden Syrian hamsters are increasingly used as a permissive animal model for SARS-CoV-2 virus studies, but the lack of immunological assays and other immunological reagents for hamsters limits its full potential. Herein, we developed an ELISA method to detect antibodies specific to peptides and proteins derived from SARS-CoV-2 virus in immunized golden Syrian hamsters. Under optimized conditions, this assay quantitates antibodies specific for individual viral peptides, peptide pools, and proteins. Hence, this ELISA method allows investigators to quantitatively assess humoral immune responses at the peptide and protein levels and has potential application in the development of peptide-based vaccines to be tested in hamsters.
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Haralambieva IH, Monroe JM, Ovsyannikova IG, Grill DE, Poland GA, Kennedy RB. Distinct Homologous and Variant-Specific Memory B-Cell and Antibody Response Over Time after SARS-CoV-2 mRNA Vaccination. J Infect Dis 2022; 226:23-31. [PMID: 35137144 PMCID: PMC8903425 DOI: 10.1093/infdis/jiac042] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
The durability of protective humoral immunity after SARS-CoV-2 vaccination and infection is largely dependent on the generation and persistence of antigen-specific isotype-switched memory B cells (MBCs) and long-lived plasma cells that reside in the bone marrow and secrete high-affinity neutralizing antibodies. The reactivity of vaccine-induced MBCs to emerging clinically significant SARS-CoV-2 variants of concern (VoCs) is largely unknown. In a longitudinal cohort study (up to 6 months following COVID-19 mRNA vaccination) we measured MBCs in concert with other functional antibody measures. We found statistically significant differences between the frequencies of MBCs responding to homologous and VoC receptor-binding domain/RBDs (Beta, Gamma, and Delta) after vaccination that persisted over time. In concert with a waning antibody response, the reduced MBC response to VoCs could translate to a weaker subsequent recall immune response and increased susceptibility to the emerging SARS-CoV-2 variant strains after vaccination.
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Affiliation(s)
- Iana H Haralambieva
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Jonathon M Monroe
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Diane E Grill
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
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Kennedy RB, Ovsyannikova IG, Haralambieva IH, Grill DE, Poland GA. Proteomic assessment of humoral immune responses in smallpox vaccine recipients. Vaccine 2022; 40:789-797. [PMID: 34952760 PMCID: PMC8792332 DOI: 10.1016/j.vaccine.2021.12.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 11/09/2021] [Accepted: 12/13/2021] [Indexed: 02/02/2023]
Abstract
The availability of effective smallpox vaccines was a critical element of the successful eradication of smallpox in 1980. Antibody responses play a primary role in protective immunity and neutralizing antibody is an established correlate of protection against smallpox. In this study we used a poxvirus proteome array to assess the antibody response to individual viral proteins in a cohort of 1,037 smallpox vaccine recipients. Several statistically significant differences were observed in the antibody response to immunodominant proteins between men and women, including B5R-a major target of neutralizing antibody in vaccinia immune globulin, and the membrane proteins D8L and A27L, both of which have been used as vaccine antigens providing protection in animal models. We also noted differences across racial/ethnic groups. In this cohort, which consisted of both ACAM2000 and Dryvax recipients, we noted minute differences in the antibody responses to a restricted number of viral proteins, providing additional support for the use of ACAM2000 as a replacement smallpox vaccine. Furthermore, our data indicate that poxvirus proteome microarrays can be valuable for screening and monitoring smallpox vaccine-induced humoral immune responses in large-scale serologic surveillance studies and prove useful in the guidance of developing novel smallpox candidate vaccines.
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Affiliation(s)
- Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN USA,Department of Internal Medicine, Mayo Clinic, Rochester, MN USA,Corresponding author: Richard B. Kennedy, Ph.D., Co-Director, Mayo Vaccine Research Group, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, Phone: (507) 284-0708, Fax: (507) 266-4716,
| | - Inna G. Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN USA,Department of Internal Medicine, Mayo Clinic, Rochester, MN USA
| | - Iana H. Haralambieva
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN USA,Department of Internal Medicine, Mayo Clinic, Rochester, MN USA
| | - Diane E. Grill
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN USA
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN USA,Department of Internal Medicine, Mayo Clinic, Rochester, MN USA
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Affiliation(s)
- Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA.
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27
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Muchtar E, Koehler AB, Johnson MJ, Rabe KG, Ding W, Call TG, Leis JF, Kenderian SS, Hayman SR, Wang Y, Hampel PJ, Holets MA, Darby HC, Slager SL, Kay NE, Miao C, Canniff J, Whitaker JA, Levin MJ, Scott Schmid D, Kennedy RB, Weinberg A, Parikh SA. Humoral and cellular immune responses to recombinant herpes zoster vaccine in patients with chronic lymphocytic leukemia and monoclonal B cell lymphocytosis. Am J Hematol 2022; 97:90-98. [PMID: 34699616 PMCID: PMC9199015 DOI: 10.1002/ajh.26388] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/09/2021] [Accepted: 10/14/2021] [Indexed: 01/03/2023]
Abstract
Monoclonal B-cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL) are clonal B-cell disorders associated with an increased risk of infections and impaired vaccination responses. We investigated the immunogenicity of recombinant zoster vaccine (RZV) in these patients. Individuals with MBL/untreated CLL and Bruton tyrosine kinase inhibitor (BTKi)-treated CLL patients were given two doses of RZV separated by 2 months. Responses assessed at 3 and 12 months from the first dose of RZV by an anti-glycoprotein E ELISA antibody assay and by dual-color Interferon-γ and Interleukin-2FLUOROSPOT assays were compared to historic controls matched by age and sex. About 62 patients (37 MBL/untreated CLL and 25 BTKi-treated CLL) were enrolled with a median age of 68 years at vaccination. An antibody response at 3 months was seen in 45% of participants, which was significantly lower compared to historic controls (63%, p = .03). The antibody response did not significantly differ between MBL/untreated CLL and BTKi-treated CLL (51% vs. 36%, respectively, p = .23). The CD4+ T-cell response to vaccination was significantly lower in study participants compared to controls (54% vs. 96%, p < .001), mainly due to lower responses among BTKi-treated patients compared to untreated MBL/CLL (32% vs. 73%, p = .008). Overall, only 29% of participants achieved combined antibody and cellular responses to RZV. Among participants with response assessment at 12 months (n = 47), 24% had antibody titers below the response threshold. Hypogammaglobulinemia and BTKi therapy were associated with reduced T-cell responses in a univariate analysis. Strategies to improve vaccine response to RZV among MBL/CLL patients are needed.
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Affiliation(s)
- Eli Muchtar
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Amber B. Koehler
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Michael J. Johnson
- Department of Pediatrics (Infectious Diseases), University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Kari G. Rabe
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Wei Ding
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Timothy G. Call
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Jose F. Leis
- Division of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Saad S. Kenderian
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Suzanne R. Hayman
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Yucai Wang
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Paul J. Hampel
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Matthew A. Holets
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Heather C. Darby
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Susan L. Slager
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN,Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Neil E. Kay
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Congrong Miao
- National VZV Laboratory, Centers for Disease Control and Prevention, Atlanta, GA
| | - Jennifer Canniff
- Department of Pediatrics (Infectious Diseases), University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Jennifer A Whitaker
- Division of Infectious Diseases, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Myron J. Levin
- Departments of Pediatrics (Infectious Diseases) and Medicine (Infectious Diseases), University of Colorado Anschutz Medical Campus, Aurora, CO
| | - D. Scott Schmid
- National VZV Laboratory, Centers for Disease Control and Prevention, Atlanta, GA
| | - Richard B. Kennedy
- Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN
| | - Adriana Weinberg
- Department of Pediatrics (Infectious Diseases), Medicine (Infectious Diseases), and Pathology University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Sameer A. Parikh
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
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Kennedy RB, Ovsyannikova IG, Poland GA. Update on Influenza Vaccines: Needs and Progress. J Allergy Clin Immunol Pract 2021; 9:3599-3603. [PMID: 34416408 DOI: 10.1016/j.jaip.2021.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 11/30/2022]
Abstract
Influenza is an annual seasonal epidemic, and occasionally pandemic, respiratory disease that causes considerable morbidity and mortality worldwide. Despite the widespread availability of safe and effective vaccines since the 1950s, this virus continues to pose a significant public health threat. Variable and often weak vaccine effectiveness, antigenic drift and shift, and vaccine hesitancy are some of the obstacles that must be overcome to control this disease. In this article, we briefly review current influenza vaccines, address safety concerns and the need for newer influenza vaccines of higher efficacy, and discuss efforts to create broadly protective, universal influenza vaccines.
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Affiliation(s)
| | | | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minn
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Crooke SN, Goergen KM, Ovsyannikova IG, Kennedy RB. Inflammasome Activity in Response to Influenza Vaccination Is Maintained in Monocyte-Derived Peripheral Blood Macrophages in Older Adults. Front Aging 2021; 2:719103. [PMID: 35822051 PMCID: PMC9261430 DOI: 10.3389/fragi.2021.719103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/09/2021] [Indexed: 11/13/2022]
Abstract
Introduction: Each year, a disproportionate number of the total seasonal influenza-related hospitalizations (90%) and deaths (70%) occur among adults who are >65 years old. Inflammasome activation has been shown to be important for protection against influenza infection in animal models but has not yet been demonstrated in humans. We hypothesized that age-related dysfunction (immunosenescence) of the inflammasome may be associated with poor influenza-vaccine response among older adults.Methods: A cohort of younger (18–40 years of age) and older (≥65 years of age) adults was recruited prior to the 2014–2015 influenza season. We measured hemagglutination inhibition (HAI) titers in serum before and 28 days after receipt of the seasonal inactivated influenza vaccine. Inflammasome-related gene expression and protein secretion were quantified in monocyte-derived macrophages following stimulation with influenza A/H1N1 virus.Results: Younger adults exhibited higher HAI titers compared to older adults following vaccination, although inflammasome-related protein secretion in response to influenza stimulation was similar between the age groups. Expression of P2RX7 following influenza stimulation was lower among older adults. Interestingly, CFLAR expression was significantly higher among females (p = 2.42 × 10−5) following influenza stimulation and this gene may play an important role in the development of higher HAI antibody titers among older females.Conclusion: Inflammasome activation in response to influenza vaccination appears to be maintained in monocyte-derived macrophages from older adults and does not explain the poor influenza vaccine responses generally observed among this age group.
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Affiliation(s)
- Stephen N. Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Krista M. Goergen
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, United States
| | | | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
- *Correspondence: Richard B. Kennedy,
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Haralambieva IH, Eberhard KG, Ovsyannikova IG, Grill DE, Schaid DJ, Kennedy RB, Poland GA. Transcriptional signatures associated with rubella virus-specific humoral immunity after a third dose of MMR vaccine in women of childbearing age. Eur J Immunol 2021; 51:1824-1838. [PMID: 33818775 PMCID: PMC9841595 DOI: 10.1002/eji.202049054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 03/03/2021] [Accepted: 12/17/2020] [Indexed: 01/19/2023]
Abstract
Multiple factors linked to host genetics/inherent biology play a role in interindividual variability in immune response outcomes after rubella vaccination. In order to identify these factors, we conducted a study of rubella-specific humoral immunity before (Baseline) and after (Day 28) a third dose of MMR-II vaccine in a cohort of 109 women of childbearing age. We performed mRNA-Seq profiling of PBMCs after rubella virus in vitro stimulation to delineate genes associated with post-vaccination rubella humoral immunity and to define genes mediating the association between prior immune response status (high or low antibody) and subsequent immune response outcome. Our study identified novel genes that mediated the association between prior immune response and neutralizing antibody titer after a third MMR vaccine dose. These genes included the following: CDC34; CSNK1D; APOBEC3F; RAD18; AAAS; SLC37A1; FAS; and JAK2. The encoded proteins are involved in innate antiviral response, IFN/cytokine signaling, B cell repertoire generation, the clonal selection of B lymphocytes in germinal centers, and somatic hypermutation/antibody affinity maturation to promote optimal antigen-specific B cell immune function. These data advance our understanding of how subjects' prior immune status and/or genetic propensity to respond to rubella/MMR vaccination ultimately affects innate immunity and humoral immune outcomes after vaccination.
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Affiliation(s)
| | | | | | - Diane E. Grill
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Daniel J. Schaid
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
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31
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Affiliation(s)
- Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA.
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32
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Poland GA, Ovsyannikova IG, Kennedy RB. Pharmacogenomics and Vaccine Development. Clin Pharmacol Ther 2021; 110:546-548. [PMID: 34097754 PMCID: PMC8239825 DOI: 10.1002/cpt.2288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 05/07/2021] [Indexed: 12/24/2022]
Affiliation(s)
- Gregory A Poland
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Crooke SN, Ovsyannikova IG, Kennedy RB, Poland GA. Identification of naturally processed Zika virus peptides by mass spectrometry and validation of memory T cell recall responses in Zika convalescent subjects. PLoS One 2021; 16:e0252198. [PMID: 34077451 PMCID: PMC8171893 DOI: 10.1371/journal.pone.0252198] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/11/2021] [Indexed: 11/19/2022] Open
Abstract
Once an obscure pathogen, Zika virus (ZIKV) has emerged as a significant global public health concern. Several studies have linked ZIKV infection in pregnant women with the development of microcephaly and other neurological abnormalities, emphasizing the need for a safe and effective vaccine to combat the spread of this disease. Preclinical studies and vaccine development efforts have largely focused on the role of humoral immunity in disease protection. Consequently, relatively little is known in regard to cellular immunity against ZIKV, although an effective vaccine will likely need to engage both the humoral and cellular arms of the immune system. To that end, we utilized two-dimensional liquid chromatography coupled with tandem mass spectrometry to identify 90 ZIKV peptides that were naturally processed and presented on HLA class I and II molecules (HLA-A*02:01/HLA-DRB1*04:01) of an immortalized B cell line infected with ZIKV (strain PRVABC59). Sequence identity clustering was used to filter the number of candidate peptides prior to evaluating memory T cell recall responses in ZIKV convalescent subjects. Peptides that individually elicited broad (4 of 7 subjects) and narrow (1 of 7 subjects) T cell responses were further analyzed using a suite of predictive algorithms and in silico modeling to evaluate HLA binding and peptide structural properties. A subset of nine broadly reactive peptides was predicted to provide robust global population coverage (97.47% class I; 70.74% class II) and to possess stable structural properties amenable for vaccine formulation, highlighting the potential clinical benefit for including ZIKV T cell epitopes in experimental vaccine formulations.
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Affiliation(s)
- Stephen N. Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Inna G. Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Richard B. Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Gregory A. Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, Minnesota, United States of America
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34
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Whitaker JA, Parikh SA, Shanafelt TD, Kay NE, Kennedy RB, Grill DE, Goergen KM, Call TG, Kendarian SS, Ding W, Poland GA. The humoral immune response to high-dose influenza vaccine in persons with monoclonal B-cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL). Vaccine 2021; 39:1122-1130. [PMID: 33461835 DOI: 10.1016/j.vaccine.2021.01.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 12/08/2020] [Accepted: 01/02/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Limited data are available regarding the immunogenicity of high-dose influenza vaccine among persons with chronic lymphocytic leukemia (CLL) and monoclonal B cell lymphocytosis (MBL). METHODS A prospective pilot study of humoral immune responses to 2013-2014 and 2014-2015 high-dose trivalent influenza vaccine (HD IIV; Fluzone® High-Dose; Sanofi Pasteur) was conducted among individuals with MBL and previously untreated CLL. Serum hemagglutination inhibition (HAI) antibody titers were measured at baseline and Day 28 after vaccination; seroprotection and seroconversion rates were determined. Memory B cell responses were assessed by B-cell enzyme-linked immune absorbent spotassays. RESULTS Thirty subjects (17 CLL and 13 MBL) were included. Median age was 69.5 years. Day 28 seroprotection rates for the cohort were 19/30 (63.3%) for A/H1N1; 21/23 (91.3%) for A/H3N2; and 13/30 (43.3%) for influenza B. Those with MBL achieved higher day 28 HAI geometric mean titers (54.1 [4.9, 600.1] vs. 12.1 [1.3, 110.1]; p = 0.01) and higher Day 28 seroprotection rates (76.9% vs. 17.6%; p = 0.002) against the influenza B-vaccine strain virus than those with CLL. CONCLUSIONS Immunogenicity of the HD IIV3 in patients with CLL and MBL is lower than reported in healthy adults. Immunogenicity to influenza B was greater in those with MBL than CLL.
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Affiliation(s)
- Jennifer A Whitaker
- Molecular Virology and Microbiology and Medicine, Infectious Diseases, Baylor College of Medicine One Baylor Plaza, MS-280, Houston, TX 77030, USA; Division of Infectious Diseases, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA.
| | - Sameer A Parikh
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Tait D Shanafelt
- Division of Hematology, Stanford University School of Medicine, 500 Pasteur Drive, Stanford, CA 94305, USA
| | - Neil E Kay
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Richard B Kennedy
- Division of General Internal Medicine and Vaccine Research Group, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Diane E Grill
- Division of Biomedical Statistics and Informatics, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Krista M Goergen
- Division of Biomedical Statistics and Informatics, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Timothy G Call
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Saad S Kendarian
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Wei Ding
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Gregory A Poland
- Division of General Internal Medicine and Vaccine Research Group, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
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35
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Crooke SN, Ovsyannikova IG, Kennedy RB, Warner ND, Poland GA. Associations between markers of cellular and humoral immunity to rubella virus following a third dose of measles-mumps-rubella vaccine. Vaccine 2020; 38:7897-7904. [PMID: 33158591 DOI: 10.1016/j.vaccine.2020.10.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 10/02/2020] [Accepted: 10/21/2020] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Rubella virus (RV) was eliminated in the United States in 2004, although a small portion of the population fails to develop long-term immunity against RV even after two doses of the measles-mumps-rubella (MMR) vaccine. We hypothesized that inherent biological differences in cytokine and chemokine signaling likely govern an individual's response to a third dose of the vaccine. METHODS Healthy young women (n = 97) were selected as study participants if they had either low or high extremes of RV-specific antibody titer after two previous doses of MMR vaccine. We measured cytokine and chemokine secretion from RV-stimulated PBMCs before and 28 days after they received a third dose of MMR vaccine and assessed correlations with humoral immune response outcomes. RESULTS High and low antibody vaccine responders exhibited a strong pro-inflammatory cellular response, with an underlying Th1-associated signature (IL-2, IFN-γ, MIP-1β, IP-10) and suppressed production of most Th2-associated cytokines (IL-4, IL-10, IL-13). IL-10 and IL-4 exhibited significant negative associations with neutralizing antibody titers and memory B cell ELISpot responses among low vaccine responders. CONCLUSION IL-4 and IL-10 signaling pathways may be potential targets for understanding and improving the immune response to rubella vaccination or for designing new vaccines that induce more durable immunity.
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Affiliation(s)
- Stephen N Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | | | | | - Nathaniel D Warner
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA.
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Abstract
Understanding immune responses to severe acute respiratory syndrome coronavirus 2 is crucial to understanding disease pathogenesis and the usefulness of bridge therapies, such as hyperimmune globulin and convalescent human plasma, and to developing vaccines, antivirals, and monoclonal antibodies. A mere 11 months ago, the canvas we call COVID-19 was blank. Scientists around the world have worked collaboratively to fill in this blank canvas. In this Review, we discuss what is currently known about human humoral and cellular immune responses to severe acute respiratory syndrome coronavirus 2 and relate this knowledge to the COVID-19 vaccines currently in phase 3 clinical trials.
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Affiliation(s)
- Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA; Division of General Internal Medicine, Mayo Clinic, Rochester, MN, USA.
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA; Division of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA; Division of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
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37
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Crooke SN, Riggenbach MM, Ovsyannikova IG, Warner ND, Chen MH, Hao L, Icenogle JP, Poland GA, Kennedy RB. Durability of humoral immune responses to rubella following MMR vaccination. Vaccine 2020; 38:8185-8193. [PMID: 33190948 DOI: 10.1016/j.vaccine.2020.10.076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 10/20/2020] [Accepted: 10/23/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND While administration of the measles-mumps-rubella (MMR-II®) vaccine has been effective at preventing rubella infection in the United States, the durability of humoral immunity to the rubella component of MMR vaccine has not been widely studied among older adolescents and adults. METHODS In this longitudinal study, we sought to assess the durability of rubella virus (RV)-specific humoral immunity in a healthy population (n = 98) of adolescents and young adults at two timepoints: ~7 and ~17 years after two doses of MMR-II® vaccination. Levels of circulating antibodies specific to RV were measured by ELISA and an immune-colorimetric neutralization assay. RV-specific memory B cell responses were also measured by ELISpot. RESULTS Rubella-specific IgG antibody titers, neutralizing antibody titers, and memory B cell responses declined with increasing time since vaccination; however, these decreases were relatively moderate. Memory B cell responses exhibited a greater decline in men compared to women. CONCLUSIONS Collectively, rubella-specific humoral immunity declines following vaccination, although subjects' antibody titers remain well above the currently recognized threshold for protective immunity. Clinical correlates of protection based on neutralizing antibody titer and memory B cell ELISpot response should be defined.
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Affiliation(s)
- Stephen N Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | | | | | - Nathaniel D Warner
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Min-Hsin Chen
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Lijuan Hao
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Joseph P Icenogle
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA.
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Kennedy RB, Haralambieva IH, Ovsyannikova IG, Voigt EA, Larrabee BR, Schaid DJ, Zimmermann MT, Oberg AL, Poland GA. Polymorphisms in STING Affect Human Innate Immune Responses to Poxviruses. Front Immunol 2020; 11:567348. [PMID: 33154747 PMCID: PMC7591719 DOI: 10.3389/fimmu.2020.567348] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/24/2020] [Indexed: 01/22/2023] Open
Abstract
We conducted a large genome-wide association study (GWAS) of the immune responses to primary smallpox vaccination in a combined cohort of 1,653 subjects. We did not observe any polymorphisms associated with standard vaccine response outcomes (e.g., neutralizing antibody, T cell ELISPOT response, or T cell cytokine production); however, we did identify a cluster of SNPs on chromosome 5 (5q31.2) that were significantly associated (p-value: 1.3 x 10−12 – 1.5x10−36) with IFNα response to in vitro poxvirus stimulation. Examination of these SNPs led to the functional testing of rs1131769, a non-synonymous SNP in TMEM173 causing an Arg-to-His change at position 232 in the STING protein—a major regulator of innate immune responses to viral infections. Our findings demonstrate differences in the ability of the two STING variants to phosphorylate the downstream intermediates TBK1 and IRF3 in response to multiple STING ligands. Further downstream in the STING pathway, we observed significantly reduced expression of type I IFNs (including IFNα) and IFN-response genes in cells carrying the H232 variant. Subsequent molecular modeling of both alleles predicted altered ligand binding characteristics between the two variants, providing a potential mechanism underlying differences in inter-individual responses to poxvirus infection. Our data indicate that possession of the H232 variant may impair STING-mediated innate immunity to poxviruses. These results clarify prior studies evaluating functional effects of genetic variants in TMEM173 and provide novel data regarding genetic control of poxvirus immunity.
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Affiliation(s)
- Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Iana H Haralambieva
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Emily A Voigt
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Beth R Larrabee
- Division of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic, Rochester, MN, United States
| | - Daniel J Schaid
- Division of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic, Rochester, MN, United States
| | - Michael T Zimmermann
- Bioinformatics Research and Development Laboratory, Genomics Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Ann L Oberg
- Division of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic, Rochester, MN, United States
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
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Abstract
In the midst of the severe acute respiratory syndrome coronavirus 2 pandemic and its attendant morbidity and mortality, safe and efficacious vaccines are needed that induce protective and long-lived immune responses. More than 120 vaccine candidates worldwide are in various preclinical and phase 1 to 3 clinical trials that include inactivated, live-attenuated, viral-vectored replicating and nonreplicating, protein- and peptide-based, and nucleic acid approaches. Vaccines will be necessary both for individual protection and for the safe development of population-level herd immunity. Public-private partnership collaborative efforts, such as the Accelerating COVID-19 Therapeutic Interventions and Vaccines mechanism, are key to rapidly identifying safe and effective vaccine candidates as quickly and efficiently as possible. In this article, we review the major vaccine approaches being taken and issues that must be resolved in the quest for vaccines to prevent coronavirus disease 2019. For this study, we scanned the PubMed database from 1963 to 2020 for all publications using the following search terms in various combinations: SARS, MERS, COVID-19, SARS-CoV-2, vaccine, clinical trial, coronavirus, pandemic, and vaccine development. We also did a Web search for these same terms. In addition, we examined the World Health Organization, Centers for Disease Control and Prevention, and other public health authority websites. We excluded abstracts and all articles that were not written in English.
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Key Words
- ace2, angiotensin-converting enzyme 2
- ade, antibody-dependent enhancement
- covid-19, coronavirus disease 2019
- il, interleukin
- mers, middle east respiratory syndrome
- mva, modified vaccinia virus ankara
- nih, national institutes of health
- rbd, receptor-binding domain
- s, spike
- sars, severe acute respiratory syndrome
- sars-cov, sars coronavirus
- tlr, toll-like receptor
- vlp, virus-like particle
- who, world health organization
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Crooke SN, Ovsyannikova IG, Kennedy RB, Poland GA. Immunoinformatic identification of B cell and T cell epitopes in the SARS-CoV-2 proteome. Sci Rep 2020; 10:14179. [PMID: 32843695 PMCID: PMC7447814 DOI: 10.1038/s41598-020-70864-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/31/2020] [Indexed: 12/18/2022] Open
Abstract
A novel coronavirus (SARS-CoV-2) emerged from China in late 2019 and rapidly spread across the globe, infecting millions of people and generating societal disruption on a level not seen since the 1918 influenza pandemic. A safe and effective vaccine is desperately needed to prevent the continued spread of SARS-CoV-2; yet, rational vaccine design efforts are currently hampered by the lack of knowledge regarding viral epitopes targeted during an immune response, and the need for more in-depth knowledge on betacoronavirus immunology. To that end, we developed a computational workflow using a series of open-source algorithms and webtools to analyze the proteome of SARS-CoV-2 and identify putative T cell and B cell epitopes. Utilizing a set of stringent selection criteria to filter peptide epitopes, we identified 41 T cell epitopes (5 HLA class I, 36 HLA class II) and 6 B cell epitopes that could serve as promising targets for peptide-based vaccine development against this emerging global pathogen. To our knowledge, this is the first study to comprehensively analyze all 10 (structural, non-structural and accessory) proteins from SARS-CoV-2 using predictive algorithms to identify potential targets for vaccine development.
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MESH Headings
- Amino Acid Sequence
- B-Lymphocytes/immunology
- B-Lymphocytes/metabolism
- Betacoronavirus/classification
- Betacoronavirus/genetics
- Betacoronavirus/immunology
- Betacoronavirus/metabolism
- COVID-19
- Computational Biology/methods
- Coronavirus Infections/immunology
- Coronavirus Infections/metabolism
- Coronavirus Infections/virology
- Epitopes, B-Lymphocyte/chemistry
- Epitopes, B-Lymphocyte/immunology
- Epitopes, T-Lymphocyte/chemistry
- Epitopes, T-Lymphocyte/immunology
- Genome, Viral
- Genomics/methods
- Host-Pathogen Interactions/immunology
- Humans
- Models, Molecular
- Pandemics
- Peptides/chemistry
- Peptides/immunology
- Phylogeny
- Pneumonia, Viral/immunology
- Pneumonia, Viral/metabolism
- Pneumonia, Viral/virology
- SARS-CoV-2
- Structure-Activity Relationship
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Vaccines, Subunit/immunology
- Viral Proteins/chemistry
- Viral Proteins/immunology
- Viral Vaccines/immunology
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Affiliation(s)
- Stephen N Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611C, 200 First Street SW, Rochester, MN, 55905, USA
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611C, 200 First Street SW, Rochester, MN, 55905, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611C, 200 First Street SW, Rochester, MN, 55905, USA
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611C, 200 First Street SW, Rochester, MN, 55905, USA.
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41
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Kennedy RB, Grigorova I. B and Th cell response to Ag in vivo: Implications for vaccine development and diseases. Immunol Rev 2020; 296:5-8. [PMID: 32683786 PMCID: PMC7405089 DOI: 10.1111/imr.12899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023]
Affiliation(s)
| | - Irina Grigorova
- Department of Microbiology and ImmunologyUniversity of Michigan Medical SchoolAnn ArborMIUSA
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42
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Ovsyannikova IG, Haralambieva IH, Crooke SN, Poland GA, Kennedy RB. The role of host genetics in the immune response to SARS-CoV-2 and COVID-19 susceptibility and severity. Immunol Rev 2020; 296:205-219. [PMID: 32658335 PMCID: PMC7404857 DOI: 10.1111/imr.12897] [Citation(s) in RCA: 141] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 06/14/2020] [Indexed: 01/08/2023]
Abstract
This article provides a review of studies evaluating the role of host (and viral) genetics (including variation in HLA genes) in the immune response to coronaviruses, as well as the clinical outcome of coronavirus-mediated disease. The initial sections focus on seasonal coronaviruses, SARS-CoV, and MERS-CoV. We then examine the state of the knowledge regarding genetic polymorphisms and SARS-CoV-2 and COVID-19. The article concludes by discussing research areas with current knowledge gaps and proposes several avenues for future scientific exploration in order to develop new insights into the immunology of SARS-CoV-2.
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Abstract
The development of vaccines, which prime the immune system to respond to future infections, has led to global declines in morbidity and mortality from dreadful infectious communicable diseases. However, many pathogens of public health importance are highly complex and/or rapidly evolving, posing unique challenges to vaccine development. Several of these challenges include an incomplete understanding of how immunity develops, host and pathogen genetic variability, and an increased societal skepticism regarding vaccine safety. In particular, new high-dimensional omics technologies, aided by bioinformatics, are driving new vaccine development (vaccinomics). Informed by recent insights into pathogen biology, host genetic diversity, and immunology, the increasing use of genomic approaches is leading to new models and understanding of host immune system responses that may provide solutions in the rapid development of novel vaccine candidates.
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Affiliation(s)
- Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
| | - Peter Palese
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, United States
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Abstract
Zika virus outbreaks have been explosive and unpredictable and have led to significant adverse health effects-as well as considerable public anxiety. Significant scientific work has resulted in multiple candidate vaccines that are now undergoing further clinical development, with several vaccines now in phase 2 clinical trials. In this review, we survey current vaccine efforts, preclinical and clinical results, and ethical and other concerns that directly bear on vaccine development. It is clear that the world needs safe and effective vaccines to protect against Zika virus infection. Whether such vaccines can be developed through to licensure and public availability absent significant financial investment by countries, and other barriers discussed within this article, remains uncertain.
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Key Words
- ade, antibody-dependent enhancement
- c, capsid
- denv, dengue virus
- e, envelope
- gbs, guillain-barré syndrome
- ifn, interferon
- irf, ifn response factor
- mrna, messenger rna
- prm, premembrane/membrane
- who, world health organization
- zikv, zika virus
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Affiliation(s)
- Gregory A Poland
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN.
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN
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45
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Haralambieva IH, Ovsyannikova IG, Kennedy RB, Goergen KM, Grill DE, Chen MH, Hao L, Icenogle J, Poland GA. Rubella virus-specific humoral immune responses and their interrelationships before and after a third dose of measles-mumps-rubella vaccine in women of childbearing age. Vaccine 2019; 38:1249-1257. [PMID: 31732325 DOI: 10.1016/j.vaccine.2019.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/29/2019] [Accepted: 11/04/2019] [Indexed: 01/06/2023]
Abstract
In the U.S., measles, mumps, and rubella vaccination is recommended as two vaccine doses. A third dose of measles-mumps-rubella (MMR) vaccine is being administered in certain situations (e.g., identified seronegativity and during outbreaks). We studied rubella-specific humoral immunity (neutralizing antibody, enzyme-linked immunosorbent assay/ELISA IgG titer and antibody avidity) and the frequencies of antigen-specific memory B cells before and after a third dose of MMR-II in 109 female participants of childbearing age (median age, 34.5 years old) from Olmsted County, MN, with two documented prior MMR vaccine doses. The participants were selected from a cohort of 1117 individuals if they represented the high and the low ends of the rubella-specific antibody response spectrum. Of the 109 participants, we identified four individuals (3.67% of all study participants; 7.14% of the low-responder group) that were seronegative at Baseline (rubella-specific ELISA IgG titers <10 IU/mL), suggesting a lack of protection against rubella before receipt of a third MMR vaccine dose. The peak geometric mean neutralizing antibody titer one month following the third dose of MMR vaccine for the cohort was 243 NT50 (CI; 241, 245), which is expected for a cohort with two doses of MMR, and the peak geometric mean IgG titer was 150 IU/mL (CI; 148, 152) with no seronegative individuals at Day 28. One-third of all subjects (31.8% for the neutralizing antibody; 30.8% for the IgG titer) experienced a significant boost (≥4-fold) of antibody titers one month following vaccination. Antibody titers and other tested immune-response variables were significantly higher in the high-responder group compared to the low-responder group. The frequencies of rubella-specific memory B cells were modestly associated with the antibody titers. Our study suggests the importance of yet unknown inherent biologic and immune factors for the generation and maintenance of rubella-vaccine-induced humoral immune responses.
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Affiliation(s)
| | | | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
| | - Krista M Goergen
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Diane E Grill
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Min-Hsin Chen
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta 30333, Georgia
| | - Lijuan Hao
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta 30333, Georgia
| | - Joseph Icenogle
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta 30333, Georgia
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
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46
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Abstract
The age-related dysregulation and decline of the immune system-collectively termed "immunosenescence"-has been generally associated with an increased susceptibility to infectious pathogens and poor vaccine responses in older adults. While numerous studies have reported on the clinical outcomes of infected or vaccinated individuals, our understanding of the mechanisms governing the onset of immunosenescence and its effects on adaptive immunity remains incomplete. Age-dependent differences in T and B lymphocyte populations and functions have been well-defined, yet studies that demonstrate direct associations between immune cell function and clinical outcomes in older individuals are lacking. Despite these knowledge gaps, research has progressed in the development of vaccine and adjuvant formulations tailored for older adults in order to boost protective immunity and overcome immunosenescence. In this review, we will discuss the development of vaccines for older adults in light of our current understanding-or lack thereof-of the aging immune system. We highlight the functional changes that are known to occur in the adaptive immune system with age, followed by a discussion of current, clinically relevant pathogens that disproportionately affect older adults and are the central focus of vaccine research efforts for the aging population. We conclude with an outlook on personalized vaccine development for older adults and areas in need of further study in order to improve our fundamental understanding of adaptive immunosenescence.
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Affiliation(s)
- Stephen N Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611D, 200 First Street SW, Rochester, MN 55905 USA
| | - Inna G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611D, 200 First Street SW, Rochester, MN 55905 USA
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611D, 200 First Street SW, Rochester, MN 55905 USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Guggenheim Building 611D, 200 First Street SW, Rochester, MN 55905 USA
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47
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Zimmermann MT, Kabat B, Grill DE, Kennedy RB, Poland GA. RITAN: rapid integration of term annotation and network resources. PeerJ 2019; 7:e6994. [PMID: 31355053 PMCID: PMC6644632 DOI: 10.7717/peerj.6994] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 04/22/2019] [Indexed: 12/15/2022] Open
Abstract
Background Identifying the biologic functions of groups of genes identified in high-throughput studies currently requires considerable time and/or bioinformatics experience. This is due in part to each resource housed within separate databases, requiring users to know about them, and integrate across them. Time consuming and often repeated for each study, integrating across resources and merging with data under study is an increasingly common bioinformatics task. Methods We developed an open-source R software package for assisting researchers in annotating their genesets with functions, pathways, and their interconnectivity across a diversity of network resources. Results We present rapid integration of term annotation and network resources (RITAN) for the rapid and comprehensive annotation of a list of genes using functional term and pathway resources and their relationships among each other using multiple network biology resources. Currently, and to comply with data redistribution policies, RITAN allows rapid access to 16 term annotations spanning gene ontology, biologic pathways, and immunologic modules, and nine network biology resources, with support for user-supplied resources; we provide recommendations for additional resources and scripts to facilitate their addition to RITAN. Having the resources together in the same system allows users to derive novel combinations. RITAN has a growing set of tools to explore the relationships within resources themselves. These tools allow users to merge resources together such that the merged annotations have a minimal overlap with one another. Because we index both function annotation and network interactions, the combination allows users to expand small groups of genes using links from biologic networks—either by adding all neighboring genes or by identifying genes that efficiently connect among input genes—followed by term enrichment to identify functions. That is, users can start from a core set of genes, identify interacting genes from biologic networks, and then identify the functions to which the expanded list of genes contribute. Conclusion We believe RITAN fills the important niche of bridging the results of high-throughput experiments with the ever-growing corpus of functional annotations and network biology resources. Availability Rapid integration of term annotation and network resources is available as an R package at github.com/MTZimmer/RITAN and BioConductor.org.
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Affiliation(s)
- Michael T Zimmermann
- Bioinformatics Research and Development Laboratory, Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI, USA.,Clinical and Translational Sciences Institute, Medical College of Wisconsin, Milwaukee, WI, USA.,Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo clinic, Rochester, MN, USA
| | - Brian Kabat
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo clinic, Rochester, MN, USA
| | - Diane E Grill
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo clinic, Rochester, MN, USA
| | | | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
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Crooke SN, Ovsyannikova IG, Poland GA, Kennedy RB. Immunosenescence: A systems-level overview of immune cell biology and strategies for improving vaccine responses. Exp Gerontol 2019; 124:110632. [PMID: 31201918 DOI: 10.1016/j.exger.2019.110632] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/30/2019] [Accepted: 06/06/2019] [Indexed: 02/07/2023]
Abstract
Immunosenescence contributes to a decreased capacity of the immune system to respond effectively to infections or vaccines in the elderly. The full extent of the biological changes that lead to immunosenescence are unknown, but numerous cell types involved in innate and adaptive immunity exhibit altered phenotypes and function as a result of aging. These manifestations of immunosenescence at the cellular level are mediated by dysregulation at the genetic level, and changes throughout the immune system are, in turn, propagated by numerous cellular interactions. Environmental factors, such as nutrition, also exert significant influence on the immune system during aging. While the mechanisms that govern the onset of immunosenescence are complex, systems biology approaches allow for the identification of individual contributions from each component within the system as a whole. Although there is still much to learn regarding immunosenescence, systems-level studies of vaccine responses have been highly informative and will guide the development of new vaccine candidates, novel adjuvant formulations, and immunotherapeutic drugs to improve vaccine responses among the aging population.
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Affiliation(s)
- Stephen N Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
| | | | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
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Voigt EA, Haralambieva IH, Larrabee BL, Kennedy RB, Ovsyannikova IG, Schaid DJ, Poland GA. Polymorphisms in the Wilms Tumor Gene Are Associated With Interindividual Variations in Rubella Virus-Specific Cellular Immunity After Measles-Mumps-Rubella II Vaccination. J Infect Dis 2019; 217:560-566. [PMID: 29253144 DOI: 10.1093/infdis/jix538] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 10/03/2017] [Indexed: 02/07/2023] Open
Abstract
Rubella vaccination induces widely variable immune responses in vaccine recipients. While rubella vaccination is effective at inducing immunity to rubella infection in most subjects, up to 5% of individuals do not achieve or maintain long-term protective immunity. To expand upon our previous work identifying genetic polymorphisms that are associated with these interindividual differences in humoral immunity to rubella virus, we performed a genome-wide association study in a large cohort of 1843 subjects to discover single-nucleotide polymorphisms (SNPs) associated with rubella virus-specific cellular immune responses. We identified SNPs in the Wilms tumor protein gene (WT1) that were significantly associated (P < 5 × 10-8) with interindividual variations in rubella-specific interleukin 6 secretion from subjects' peripheral blood mononuclear cells postvaccination. No SNPs were found to be significantly associated with variations in rubella-specific interferon-γ secretion. Our findings demonstrate that genetic polymorphisms in the WT1 gene in subjects of European ancestry are associated with interindividual differences in rubella virus-specific cellular immunity after measles-mumps-rubella II vaccination.
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Affiliation(s)
- Emily A Voigt
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester
| | | | - Beth L Larrabee
- Mayo Clinic Division of Biostatistics, Mayo Clinic, Rochester, Minnesota
| | | | | | - Daniel J Schaid
- Mayo Clinic Division of Biostatistics, Mayo Clinic, Rochester, Minnesota
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50
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Parvandeh S, Poland GA, Kennedy RB, McKinney BA. Multi-Level Model to Predict Antibody Response to Influenza Vaccine Using Gene Expression Interaction Network Feature Selection. Microorganisms 2019; 7:microorganisms7030079. [PMID: 30875727 PMCID: PMC6462975 DOI: 10.3390/microorganisms7030079] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/24/2019] [Accepted: 03/08/2019] [Indexed: 11/18/2022] Open
Abstract
Vaccination is an effective prevention of influenza infection. However, certain individuals develop a lower antibody response after vaccination, which may lead to susceptibility to subsequent infection. An important challenge in human health is to find baseline gene signatures to help identify individuals who are at higher risk for infection despite influenza vaccination. We developed a multi-level machine learning strategy to build a predictive model of vaccine response using pre−vaccination antibody titers and network interactions between pre−vaccination gene expression levels. The first-level baseline−antibody model explains a significant amount of variation in post-vaccination response, especially for subjects with large pre−existing antibody titers. In the second level, we clustered individuals based on pre−vaccination antibody titers to focus gene−based modeling on individuals with lower baseline HAI where additional response variation may be predicted by baseline gene expression levels. In the third level, we used a gene−association interaction network (GAIN) feature selection algorithm to find the best pairs of genes that interact to influence antibody response within each baseline titer cluster. We used ratios of the top interacting genes as predictors to stabilize machine learning model generalizability. We trained and tested the multi-level approach on data with young and older individuals immunized against influenza vaccine in multiple cohorts. Our results indicate that the GAIN feature selection approach improves model generalizability and identifies genes enriched for immunologically relevant pathways, including B Cell Receptor signaling and antigen processing. Using a multi-level approach, starting with a baseline HAI model and stratifying on baseline HAI, allows for more targeted gene−based modeling. We provide an interactive tool that may be extended to other vaccine studies.
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Affiliation(s)
- Saeid Parvandeh
- Tandy School of Computer Science, University of Tulsa, Tulsa, OK 74104, USA.
| | - Greg A Poland
- Mayo Vaccine Group, Mayo Clinic, Rochester, MN 55905, USA.
| | | | - Brett A McKinney
- Tandy School of Computer Science, University of Tulsa, Tulsa, OK 74104, USA.
- Department of Mathematics, University of Tulsa, Tulsa, OK 74104, USA.
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