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Chimeric Delta-Omicron RBD-dimer vaccine found to be effective against SARS-CoV-2 variants

In a new study, researchers described their self-designed chimeric receptor-binding domain-dimer vaccine approach to adapt SARS-CoV-2 variants of concern and variants of interest.

29 Apr 2022

Antibodies that neutralize most sarbecoviruses, including SARS-CoV-2 variants

Researchers isolate three mAbs that broadly neutralized sarbecoviruses and carried out virological and structural studies of these mAbs.

21 Apr 2022

Metrohm USA celebrates 10th annual young chemist award winner

Metrohm USA is pleased to announce the winner of its 2022 Young Chemist Award, Colby Ott. Colby is a Ph.D. candidate at West Virginia University's Forensic and Investigative Science Department in Morgantown, West Virginia, where his research centers around developing novel methods for screening seized drugs.

From Metrohm USA Inc. 20 Apr 2022

SARS-CoV-2 mutations change proteasome processing to alter CD8+ T cell responses

Researchers identified mutations in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleoproteins (NP) epitope flanking regions and their potential effects on CD8+ T cell activation.

12 Apr 2022

Study explores favorable signatures for specific RNA motif recognition by SARS-CoV-2 nucleocapsid

A new study evaluated the N terminal domain of the SARS-CoV-2 nucleocapsid protein. It presented the targeted characteristics for selective ribonucleic acid identification by SARS-CoV-2 N in its 5'-genomic end.

24 Mar 2022

SARS-CoV-2 infection model generated from human tonsil epithelial organoids

Researchers evaluate the feasibility of tonsil epithelial cell-derived organoids as an ex vivo model for studying SARS-CoV-2 infection.

15 Mar 2022

Scientists find no connection between pandemic chilblains and SARS-CoV-2 infection

A recent study provides a better understanding of whether SARS-CoV-2 infection is linked with the occurrence of chilblains.

3 Mar 2022

Biophysical fitness profile of SARS-CoV-2 Delta variant

In a recent study posted to the bioRxiv* preprint server, researchers investigated the biophysical fitness landscape of the receptor-binding domain (RBD) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant.

1 Mar 2022

Study explores the decline in viral load and immune response in COVID-19 patients

Researchers described the changes in viral ribonucleic acid the decline in viral load, and the immune response of SARS-CoV-2-infected patients, in a new preprint study.

22 Feb 2022

Response of peripheral immune cells to ex vivo SARS-CoV-2 exposure compared to SARS-CoV

Researchers characterized the responses of the PBMCs at the individual cell and cell type levels against SARS-CoV-2 and SARS-CoV ex vivo.

18 Feb 2022

Study shows expression of viral proteases may be used to quantitate SARS-CoV-2 infected cells

A new study describes a new method to quantify SARS-CoV-2 infection, which is much simpler and faster compared to existing methods.

14 Feb 2022

Rapid generation and evaluation of an mRNA vaccine candidate specific to Omicron

A recent study demonstrated the development of a potential SARS-CoV-2 Omicron variant-specific mRNA vaccine candidate.

10 Feb 2022

New personalized test to detect leukemia relapse sooner and avoid false negative results

Researchers have developed a new protocol for monitoring acute lymphoblastic leukemia (ALL), the most common cancer in children, to inform more effective treatment strategies and detect disease recurrence.

7 Feb 2022

Evolutionary history of ACE2 binding across a diverse range of sarbecoviruses and ACE2 orthologs

Researchers have been investigating sarbecovirus lineages and the ability of those lineages to evolve the ability to bind ACE2.

7 Feb 2022

Antigenic map of SARS-CoV-2 variants reveals amino acid substitutions that govern immune escape and immunodominance

Researchers use antigenic cartography to analyze cross-reactivity patterns of eight groups of human sera on a panel of SARS-CoV-2 variants.

2 Feb 2022

SARS-CoV-2 entry at the cell surface facilitated by trypsin

Exogenous trypsin treatment boosts SARS-CoV-2 infection in Vero E6 cells and promotes viral multiplication in cultured cells.

1 Feb 2022

Study shows monoclonal antibody and antiviral therapy are useful in preventing the severity of SARS-CoV-2 Omicron infection

In a new study, researchers assessed the efficacy of the FDA-approved therapeutic mAbs, as well as to small-molecule antiviral agents against the SARS-CoV-2 Omicron variant in Syrian hamsters.

21 Jan 2022

Exploring factors favoring transmission of SARS-CoV-2 Delta sublineage AY.4.2 over the Delta variant

In the present study, researchers isolated an infectious AY.4.2 strain of COVID-19 from the nasopharyngeal swab of a symptomatic individual from the Paris region. Then, they introduced the AY.4.2 signature mutations - T95I, Y145H, and A222V - in an expression plasmid coding the Delta protein to study the function of the AY.4.2 S protein.

13 Jan 2022

SARS-CoV-2 Omicron study on hamsters, shows virus results in a less severe disease

Researchers investigate the ability of immunity acquired from SARS-CoV-2 wild-type infection to protect against the Omicron variant in Syrian hamster models.

3 Jan 2022

Study highlights importance of positive and negative selection in evolution of SARS-CoV-2 variants

Researchers from the University of Colorado Anschutz Medical Campus have been investigating the changes imparted on the Gamma variant by three RBD mutations.

28 Dec 2021