The capability of antibodies to neutralize different SARS-CoV-2 variants varies among individuals depending on the previous exposure to wild-type or Omicron-specific immunogens by mono- or bivalent vaccinations or infections. Such profiles of neutralizing antibodies (nAbs) usually have to be assessed via laborious live-virus neutralization tests (NTs). We therefore analyzed whether a novel multivariant surrogate-virus neutralization test (sVNT) (adapted from a commercial microarray) that quantifies the antibody-mediated inhibition between the receptor angiotensin-converting enzyme 2 (ACE2) and variant-specific receptor-binding domains (RBDs) can assess the neutralizing activity against the SARS-CoV-2 wild-type, and Delta Omicron BA.1, BA.2, and BA.5 subvariants after a booster with Omicron-adapted bivalent vaccines in a manner similar to live-virus NTs. Indeed, by using the live-virus NTs as a reference, we found a significant correlation between the variant-specific NT titers and levels of ACE2-RBD binding inhibition ( < 0.0001, r ≤ 0.78 respectively). Furthermore, the sVNTs identified higher inhibition values against BA.5 and BA.1 in individuals vaccinated with Omicron-adapted vaccines than in those with monovalent wild-type vaccines. Our data thus demonstrate the ability of sVNTs to detect variant-specific nAbs following a booster with bivalent vaccines.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10818493 | PMC |
| http://dx.doi.org/10.3390/vaccines12010094 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Immunoinformatics: A Veritable Toolbox for Livestock Omics and Veterinomics.
OMICS
January 2025
Animal Biochemistry Division, ICAR - National Dairy Research Institute, Karnal, India.
Immunoinformatics, an integrative field consisting of bioinformatics and immunology, has showcased its potential in addressing zoonotic diseases, as evidenced during the Coronavirus disease 2019 (COVID-19) pandemic. However, its application in livestock health remains largely untapped. This opinion commentary explores how immunoinformatics, combined with advancements in genomics, multi-omics integration, and genome editing technologies, can revolutionize livestock management by enhancing disease resistance, vaccine development, and productivity.
View Article and Find Full Text PDFOne-pot ligation of multiple mRNA fragments on dsDNA splint advancing regional modification and translation.
Nucleic Acids Res
January 2025
Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, The College of Life Sciences, Sichuan University, 24 South Section 1, 1st Ring Road, Chengdu, Sichuan 610064, P.R. China.
Region-specific RNA modifications are crucial for advancing RNA research and therapeutics, including messenger RNA (mRNA)-based vaccines and immunotherapy. However, the predominant method, synthesizing regionally modified mRNAs with short single-stranded DNA (ssDNA) splints, encounters challenges in ligating long mRNA fragments due to the formation of RNA self-folded complex structures. To address this issue, we developed an efficient strategy using an easily obtained long double-stranded DNA (dsDNA) as a ligation splint after in situ denaturing, while parts of this dsDNA are the templates for transcribing mRNA fragments.
View Article and Find Full Text PDFCo-activating STING-TLR9 pathways promotes radiotherapy-induced cancer vaccination.
J Control Release
January 2025
College of Pharmaceutical Sciences, College of Chemistry, Chemical Engineering and Materials Science,, Soochow University, Suzhou 215123, People's Republic of China; State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, People's Republic of China. Electronic address:
Vaccination may cure cancer patients by inducing tumor-specific immune responses. Radiotherapy is an appealing strategy to generate cancer vaccines in situ; thus far, however, only modest and short-lived immune responses are achieved. We here show that radiation combined with co-activating STING-TLR9 can generate powerful in situ cancer vaccines.
View Article and Find Full Text PDFLessons learned from the COVID-19 pandemic: identifying hesitant groups and exploring reasons for vaccination hesitancy, from adolescence to late adulthood.
Front Public Health
January 2025
Department of Social Sciences, University of Luxembourg, Esch-sur-Alzette, Luxembourg.
Introduction: The COVID-19 (COronaVIrus Disease-2019) pandemic highlighted the importance of assessing the rationales behind vaccine hesitancy for the containment of pandemics. In this nationwide study, representative of the Luxembourgish population, we identified hesitant groups from adolescence to late adulthood and explored motivations both for and against vaccination.
Methods: We combined data collected via online surveys for the CON-VINCE (COvid-19 National survey for assessing VIral spread by Non-affected CarriErs) study, 1865 respondents aged 18-84, and for the YAC (Young people And Covid-19) study, 3740 respondents aged 12-29.
Effectiveness of mRNA COVID-19 vaccines and hybrid immunity in preventing SARS-CoV-2 infection and symptomatic COVID-19 among adults in the United States.
J Infect Dis
January 2025
Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Background: Understanding protection against SARS-CoV-2 infection by vaccine and hybrid immunity is important for informing public health strategies as new variants emerge.
Methods: We analyzed data from three cohort studies spanning September 1, 2022-July 31, 2023, to estimate COVID-19 vaccine effectiveness (VE) against SARS-CoV-2 infection and symptomatic COVID-19 among adults with and without prior infection in the United States. Participants collected weekly nasal swabs, irrespective of symptoms, annual blood draws, and completed periodic surveys, which included vaccination status and prior infection history.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!