Memory B cell development elicited by mRNA booster vaccinations in the elderly
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE233230 | GEO | 2023/05/27
REPOSITORIES: GEO
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Project description:Memory B cell development elicited by mRNA booster vaccinations in the elderly
| PRJNA975506 | ENA
Project description:To compare the effects of different types of SARS-CoV-2 vaccines in booster immunization in Elderly Adults, this study established a population cohort vaccinated with inactivated vaccine and protein subunit vaccine as the third booster vaccine in Elderly Adults over 70 Years of Age, respectively. We collected serum and PBMC samples from participants, and performed a systematic review of distinct antibody signatures and microtranscriptomics to provide data support for booster immunization.
2024-01-31 | GSE234008 | GEO
Project description:Age is a major risk factor for hospitalization and death after SARS-CoV-2 infection, even in vaccinees. Suboptimal responses to a primary vaccination course have been reported in the elderly, but there is little information regarding the impact of age on responses to booster third doses. Here we show that individuals 70 or older who received a primary two dose schedule with AZD1222 and booster third dose with mRNA vaccine achieved significantly lower neutralizing antibody responses against SARS-CoV-2 spike pseudotyped virus compared to those below 70 at one month post booster. Neither the concentration of serum binding anti spike IgG antibody, nor the frequency of spike- specific B cells showed differences by age grouping. Impaired neutralization potency and breadth post-third dose in the elderly was associated with enrichment of circulating “atypical†spike-specific B cells expressing CD11c and FCRL5. Presence of these atypical B cells was confirmed by scRNA seq. However, when considering individuals who received three doses of mRNA vaccine, we did not observe statistically significant differences in neutralization or enrichment in atypical B cells by age grouping following dose 3. Together, our data reveal impaired neutralising antibody responses in the elderly after heterologous vaccination with AdV followed by mRNA booster dose, but not in homologous three dose mRNA vaccination highlighting that different vaccine formats differentially instruct the memory B cell response.
| EGAS00001007385 | EGA
Project description:The Omicron variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), first identified in November 2021 in South Africa, has initiated the 5th wave of global pandemics. Here, we systemically examined immunological and metabolic characteristics of Omicron variants infection. We found Omicron resisted to neutralizing antibody targeting receptor binding domain (RBD) of wild-type SARS-CoV-2. Omicron could not be neutralized by sera of Corona Virus Disease 2019 (COVID-19) convalescent individuals who were infected with the Delta variant. Through mass spectrometry on MHC-bound peptidomes, we found that the spike protein of the Omicron variants could generate additional CD8+ T cell epitopes, compared with Delta. These epitopes could induce robust CD8+ T cell responses. Moreover, we found booster vaccination increased the cross-memory CD8+ T cell responses against Omicron. Metabolic regulome analysis of Omicron-specific T cell showed a metabolic profile that promoted memory T cell responses. Consistently, a higher fraction of memory CD8+ T cells were found in Omicron stimulated peripheral blood mononuclear cells (PBMCs). In addition, CD147 was also a receptor for the Omicron variants, and CD147 antibody inhibited infection of Omicron. CD147-mediated Omicron infection in a human CD147 transgenic mouse model induced exudative alveolar pneumonia. Taken together, our data suggested that vaccination booster and receptor blocking antibody are two effective strategies against Omicron.
2023-03-11 | PXD037955 | Pride
Project description:To compare the effects of different types of SARS-CoV-2 vaccines in booster immunization, this study established a population cohort vaccinated with inactivated vaccine and protein subunit vaccine as the third booster vaccine, respectively. We collected serum and PBMC samples from participants in chronological order, and performed a systematic review of distinct antibody signatures and microtranscriptomics to provide data support for booster immunization.
2022-10-19 | GSE206023 | GEO
Project description:It is urgently needed to evaluate the necessity and benefits of booster vaccination to facilitate clinical decision-making for recovered COVID-19 patients. In this study, we conducted a multicentre, prospective clinical trial of the earliest COVID-19 patients with a definitive history of direct or indirect exposure to SARS-CoV-2 through Hubei Province from three Chinese hospitals to evaluate the efficiency, safety and immune response of CoronaVac (an inactivated COVID-19 vaccine). Convalescent patients with high titres (≥ 1:96) or non-severe also exhibited higher frequency of long COVID-19 symptoms. One booster dose in convalescent patients with antibody titres below 1:96 significantly induced neutralizing antibodies against prototypic SARS-CoV-2 and the Delta variant by 13.03- and 9.27-fold, respectively. Transient adverse events occurred in three out of the twenty-eight immunized participants (10.71%). In addition, the ratio of naïve T cells increased dramatically, and TEMRA and TEM cells gradually decreased post vaccination. The expression levels of activation-induced cell death and apoptosis-related genes were significantly elevated after vaccination in all T-cell subtypes in convalescent patients. Our results indicate that vaccine-mediated T-cell consumption and regeneration patterns may be detrimental to the antiviral response.
2024-01-15 | GSE219086 | GEO
Project description:In this study, we performed a systems-level analysis of immune responses to the trivalent inactivated influenza vaccine adjuvanted with MF-59 in children (15-24 months old) and in young healthy adults. We analyzed transcriptional responses elicited by vaccination in peripheral blood, as well as cellular and antibody responses following primary and booster vaccinations. The pediatric population is a major target of vaccination, yet there is a paucity of studies on the transcriptional response of immunity to vaccination in this special population. In this study, we performed a systems-level analysis of immune responses to the trivalent inactivated influenza vaccine adjuvanted with MF-59 in children (15-24 months old) and in young healthy adults. We analyzed transcriptional responses elicited by vaccination in peripheral blood, as well as cellular and antibody responses following primary and booster vaccinations. Our analysis revealed that primary vaccination induced a persistent transcriptional signature of innate immunity; booster vaccination induced a transcriptional signature of an enhanced memory-like innate response, which was consistent with enhanced activation of myeloid cells assessed by FACS. Furthermore, we identified a transcriptional signature of type 1 IFN response post booster vaccination and at baseline that was correlated with the local reactogenicity to vaccination, and defined an early signature of the hemagglutinin antibody titers. These results highlight an adaptive behavior of the innate immune system in evoking a memory-like response to secondary vaccination and define molecular correlates of reactogenicity and immunogenicity in infants.
2023-05-27 | GSE223316 | GEO
Project description:RNA vaccines are efficient preventive measures to combat the SARS-CoV-2 pandemic. High levels of neutralizing SARS-CoV-2-antibodies are an important component of vaccine-induced immunity. Shortly after the initial two mRNA vaccine doses, the IgG response mainly consists of the pro-inflammatory subclasses IgG1 and IgG3. Here, we report that several months after the second vaccination, SARS-CoV-2-specific antibodies were increasingly composed of non-inflammatory IgG4, which were further boosted by a third mRNA vaccination and/or SARS-CoV-2 variant breakthrough infections. IgG4 antibodies among all spike-specific IgG antibodies rose on average from 0.04% shortly after the second vaccination to 19.27% late after the third vaccination. This induction of IgG4 antibodies was not observed after homologous or heterologous SARS-CoV-2 vaccination with adenoviral vectors. Single-cell sequencing and flow cytometry revealed substantial frequencies of IgG4-switched B cells within the spike-binding memory B-cell population (median 14.4%; interquartile range (ICR) 6.7-18.1%) compared to the overall memory B-cell repertoire (median 1.3%; ICR 0.9-2.2%) after three immunizations. Importantly, this class switch was associated with a reduced capacity of the spike-specific antibodies to mediate antibody-dependent cellular phagocytosis and complement deposition. Since Fc-mediated effector functions are critical for antiviral immunity, these findings may have consequences for the choice and timing of vaccination regimens using mRNA vaccines, including future booster immunizations against SARS-CoV-2.
2022-12-22 | GSE221316 | GEO
Project description:RNA vaccines are efficient preventive measures to combat the SARS-CoV-2 pandemic. High levels of neutralizing SARS-CoV-2-antibodies are an important component of vaccine-induced immunity. Shortly after the initial two mRNA vaccine doses, the IgG response mainly consists of the pro-inflammatory subclasses IgG1 and IgG3. Here, we report that several months after the second vaccination, SARS-CoV-2-specific antibodies were increasingly composed of non-inflammatory IgG4, which were further boosted by a third mRNA vaccination and/or SARS-CoV-2 variant breakthrough infections. IgG4 antibodies among all spike-specific IgG antibodies rose on average from 0.04% shortly after the second vaccination to 19.27% late after the third vaccination. This induction of IgG4 antibodies was not observed after homologous or heterologous SARS-CoV-2 vaccination with adenoviral vectors. Single-cell sequencing and flow cytometry revealed substantial frequencies of IgG4-switched B cells within the spike-binding memory B-cell population (median 14.4%; interquartile range (ICR) 6.7-18.1%) compared to the overall memory B-cell repertoire (median 1.3%; ICR 0.9-2.2%) after three immunizations. Importantly, this class switch was associated with a reduced capacity of the spike-specific antibodies to mediate antibody-dependent cellular phagocytosis and complement deposition. Since Fc-mediated effector functions are critical for antiviral immunity, these findings may have consequences for the choice and timing of vaccination regimens using mRNA vaccines, including future booster immunizations against SARS-CoV-2.
2022-12-22 | GSE221319 | GEO
Project description:SARS-CoV-2 spike (S) specific T-cell and antibody (AB) responses after primary BNT162b2 vaccination (Pfizer Inc., New York, NY, USA and BioNTech SE, Mainz, Germany) partially depend on the phenotypic composition of pre-existing T-helper (Th) cell populations (Saggau et al., 2022, Immunity). However, adaptive cellular responses and their impact on sustained immune protection after booster vaccination are incompletely understood. We therefore monitored cellular and humoral immune responses before and up to 6 months after the 3rd BNT162b2 vaccination to identify early determinants of sustained responses. As part of an ongoing registry study (Corona Registry Study number 20–426, approved by the ethics committee of the Ludwig Maximilians University Munich), volunteers were recruited among employees of the University Hospital of Augsburg. All subjects had received primary vaccination with two doses of BNT162b2 and were enrolled before their third dose of BNT162b2 (first booster). Exclusion criteria were active infections, receipt of immunomodulatory therapy, pregnancy, positive nucleocapsid-specific (N) IgG titers, and underlying conditions associated with significant impairment of anti-COVID-19 immunity (e.g., diabetes mellitus, cancer, prior stem cell transplantation, or autoimmune diseases). Lithium heparin-anticoagulated whole blood and serum samples were collected immediately before the third vaccination (T0), as well as 1 (T1), 3 (T3), and 6 months (T6) after booster vaccination. No additional booster doses were given during the study period. Serum samples were tested for nucleocapsid (N), S (COBAS e801 immunoassay analyzer with Elecsys Anti-SARS-CoV-2 and Anti-SARS-CoV-2 S (Hitachi Ltd., Tokyo, Japan and Roche Diagnostics GmbH, Basel, Switzerland), and neutralizing AB responses (Haselmann et al., 2020, Clin Chem Med Lab). Subjects developing N IgG or those with incomplete follow-up were excluded. Whole blood was stimulated with co-stimulatory factors anti-CD28 and anti-49d (1 µg/mL Miltenyi Biotec, Bergisch Gladbach, Germany) only, representing the unstimulated/background sample, or additionally S peptides (0.6 nMol/peptide/mL Prot_S, Miltenyi Biotec, Bergisch Gladbach, Germany), as described previously (Lauruschkat et al., 2021, J Fungi (Basel), Weis et al., 2020, Med Mycol). Samples were subsequently analyzed by flow cytometry (data not relevant for this file/analysis) and 13-plex multiplex cytokine assay (LegendPlex Essential Immune Response Panel, BioLegend, San Diego, USA). Significant associations between readouts were identified by multiple testing-adjusted rank correlation analysis. We found moderate correlation between S IgG (r=0.47), S-induced IL-2 (r=0.58) and IFN-γ (r=0.43) at T1 and T6. S IgG, S-induced IL-2, and S-induced IFN-γ at T6 were significantly associated with increased IL 2 & IL 4, IP 10 & MCP1, and IFN-γ & IP 10 levels at T1, respectively (data presented at the 7th Joint Microbiology & Infection Conference of the German Society for Hygiene and Microbiology (DGHM) and the Association for General and Applied Microbiology (VAAM), Wuerzburg, Germany). Subsequently, the preserved T1 RNA samples of the top and bottom half responders at T6 (based on S IgG, S-induced IL-2, and IFN-γ measurements) were isolated via RNeasy Plus Mini Kit (Qiagen, Hilden, Germany) and analyzed by nCounter Immune Exhaustion Panel (Nanostring, Seattle, USA) as described below. At the time of GEO submission of this data (August 2024), the associated manuscript is under review by Frontiers in Immunology.
2024-08-06 | GSE273994 | GEO