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Mutations in SARS-CoV-2 spike proteolytic cleavage sites may alter transmission dynamics

A study conducted by researchers at the University of Kentucky and the Washington University School of Medicine in the USA has revealed that mutations in the proteolytic cleavage site within the S2 subunit can alter the processing of the SARS-CoV-2 spike protein, affecting viral entry into host cells.

26 Jan 2021

SARS-CoV-2 rapidly adapts to Vero E6 cell culture propagation

Researchers at the Erasmus Medical Centre in the Netherlands and the University of Illinois at Urbana-Champaign in the US found that SARS-CoV-2 rapidly adapts to Vero E6 cell culture propagation and that this can be prevented by using cell lines with an active serine protease-mediated entry pathway.

26 Jan 2021

New UK SARS-CoV-2 variant circulating in US since November, says study

A new study by researchers at the Department of Ecology and Evolutionary Biology, University of Arizona, showed that the new variant has circulated in the US since November.

26 Jan 2021

Bispecific antibody shows efficacy against new SARS-CoV-2 variants

A team of international scientists has recently developed a bispecific antibody that can bind two non-overlapping regions of the spike receptor-binding domain of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and completely prevent the viral-host interaction.

25 Jan 2021

UC research team uses zebrafish to study a gene mutation that causes congenital scoliosis

Popular in aquariums all over the world, the zebrafish is native to South Asia. But here in a Cincinnati Children's laboratory, the freshwater variant plays a vital role in scientific discovery.

22 Jan 2021

Combination therapy shows potential for treating lung cancer

Most lung cancers are of a type called non-small-cell lung carcinoma (NSCLC). This type of cancer is relatively insensitive to chemotherapy, so NSCLC therapies are usually based on drug treatment.

22 Jan 2021

How have new SARS-CoV-2 strains become more transmissible?

A new study discusses the effect of specific mutations on the sensitivity of SARS-CoV-2's spike protein to elastase, and on the intramolecular conformational changes.

22 Jan 2021

Researchers update automated computation tool for SARS-CoV-2 genome analysis

Researchers updated a previous version of an automated tool to include SARS-CoV-2 genome analysis. Genome analysis using the freely available software could help track the evolution of the virus and promptly identify variants that increase viral transmission or virulence.

22 Jan 2021

SARS-CoV-2’s nonstructural proteins dysregulate immune responses, study finds

Researchers provide an overview of SARS-CoV-2 and its life cycle pathways, addressing the functional changes in the viral proteins, providing important strategic clues to help that may help in the ongoing development of therapies against COVID-19.

22 Jan 2021

Mitochondrial mutation linked to elevated diabetes risk in Japanese men

A new study of Type 2 diabetes in Japanese populations has uncovered a previously uncharacterized genetic variant that puts male carriers at greater risk for the disease, as well as the mechanism by which it does so.

21 Jan 2021

New data on impact of spike mutations and B117 UK variant on neutralization by mAbs and sera

A recent paper by British and Dutch scientists, currently available on the bioRxiv* preprint server, shows that the neutralizing activity of monoclonal antibodies can be dramatically reduced by mutations of the SARS-CoV-2 spike glycoprotein – unlike polyclonal antibodies generated after natural infection that remain active regardless of any introduced amino acid changes.

21 Jan 2021

SARS-CoV-2 variants appear to arise independently of local transmission

Researchers at the University of Michigan in the United States have cautioned against only using within-host minor genetic variations to resolve the genomic epidemiology of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19).

21 Jan 2021