Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Traditional cellular and live-virus methods for detection of SARS-CoV-2 neutralizing antibodies (nAbs) are labor- and time-intensive, and thus not suited for routine use in the clinical lab to predict vaccine efficacy and natural immune protection. Here, we report the development and validation of a rapid, high throughput method for measuring SARS-CoV-2 nAbs against native-like trimeric spike proteins. This assay uses a blockade of hACE-2 binding (BoAb) approach in an automated digital immunoassay on the Quanterix HD-X platform. BoAb assays using vaccine and delta variant viral strains showed strong correlation with cell-based pseudovirus and live-virus neutralization activity. Importantly, we were able to detect similar patterns of delta variant resistance to neutralization in samples with paired vaccine and delta variant BoAb measurements. Finally, we screened clinical samples from patients with or without evidence of SARS-CoV-2 exposure by a single-dilution screening version of our assays, finding significant nAb activity only in exposed individuals. In principle, these assays offer a rapid, robust, and scalable alternative to time-, skill-, and cost-intensive standard methods for measuring SARS-CoV-2 nAb levels.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8820678 | PMC |
| http://dx.doi.org/10.1101/2022.02.01.22270279 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
UGT2B7-mediated drug-drug interaction between cannabinoids and hydromorphone.
Drug Metab Dispos
July 2025
Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington; Division of Molecular Biosciences, Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, New York
Hydromorphone is a highly potent opioid used to treat severe chronic pain. It is metabolized primarily by UDP-glucuronosyltransferase (UGT)2B7 to form the inactive hydromorphone-3-glucuronide. Given that previous studies have shown that the major cannabinoids, Δ-tetrahydrocannabinol (THC) and cannabidiol (CBD), inhibit several UGT enzymes, the objective of the present study was to determine the inhibitory potential of major cannabinoids and their metabolites on UGT-mediated hydromorphone metabolism.
View Article and Find Full Text PDFThe Association Between Obesity and COVID-19 Severity in Children Differed Between SARS-CoV-2 Variants: A Multicountry Hospital-Based Observational Study.
Pediatr Infect Dis J
September 2025
From the School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia.
Background: Obesity was a risk factor for severe COVID-19 in children during early outbreaks of ancestral SARS-CoV-2 and the Delta variant. However, the relationship between obesity and COVID-19 severity during the Omicron wave remains unclear.
Methods: This multicenter, observational study included polymerase chain r eaction-confirmed SARS-CoV-2-infected children and adolescents from Australia, Brazil, Italy, Portugal, Switzerland, Thailand, the United Kingdom and the United States hospitalized between January 1, 2020, and March 31, 2022.
Identification of temperature-insensitive residues in regulating SARS-CoV-2 variants-human ACE2 interaction-a study of molecular dynamics simulation.
Phys Chem Chem Phys
September 2025
School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
The COVID-19 pandemic remains a global health crisis, with successive SARS-CoV-2 variants exhibiting enhanced transmissibility and immune evasion. Notably, the Omicron variant harbors extensive mutations in the spike protein's receptor-binding domain (RBD), altering viral fitness. While temperature is a critical environmental factor modulating viral stability and transmission, its molecular-level effects on variant-specific RBD-human angiotensin-converting enzyme 2 (hACE2) interactions remain underexplored.
View Article and Find Full Text PDFDiscovery and mechanistic insights of dibenzoylmethane as a broad spectrum inhibitor of coronavirus.
PLoS Pathog
September 2025
State Key Laboratory of Virology and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China.
Coronavirus, a large family of positive-sense RNA viruses, are responsible for both mild and severe respiratory illnesses, ranging from the common cold to life-threatening conditions. Despite significant advances in vaccine and antiviral development, the high mutability of human coronaviruses (HCoVs), such as SARS-CoV-2, presents a major challenge in treating these infections. Effective, broad-spectrum antiviral drugs are urgently needed to address both current and future HCoV outbreaks.
View Article and Find Full Text PDFTagraxofusp, a CD123-targeted therapy, for chronic myelomonocytic leukemia: final results of a phase 1/2 study.
Blood Neoplasia
November 2025
Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX.
Chronic myelomonocytic leukemia (CMML) is an aggressive hematologic neoplasm characterized by an expansion of CD123 monocytes and plasmacytoid dendritic cells (pDCs). pDC bone marrow clusters in CMML have been associated with higher rates of acute myeloid leukemia transformation. We evaluated tagraxofusp, a CD123-targeted therapy, in a phase 1/2 trial for patients with CMML.
View Article and Find Full Text PDF