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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

Pre-existing immunity against influenza can lower SARS-CoV-2 infection burden and spread

A recent study by a team of European researchers demonstrated how antibodies induced by currently circulating influenza A H1N1 strains can cross-react with the important part of the SARS-CoV-2 spike glycoprotein that interacts with the human cell receptor. Their paper is currently available on the medRxiv* preprint server while it undergoes peer review.

28 Dec 2021

Study suggests spike mutation makes SARS-CoV-2 Omicron milder

The Omicron spike is relatively poorly cleaved and impaired in mediating cell-cell fusion and syncytia formation, contrary to predictions.

28 Dec 2021

Researchers discover antibodies that neutralize omicron and other SARS-CoV-2 variants

An international team of scientists have identified antibodies that neutralize omicron and other SARS-CoV-2 variants. These antibodies target areas of the virus spike protein that remain essentially unchanged as the viruses mutate.

28 Dec 2021

SARS-CoV-2 spreads through cell-to-cell transmission, study finds

The virus that causes COVID-19 has adopted some stealth moves to stay alive and kicking, and one secret to its success is hiding from the immune system by spreading through cell-to-cell transmission, a new study has found.

23 Dec 2021

Cryo-EM of Omicron variant reveals antibody evasion by spike-ACE2 complex

Researchers compare the obtained binding affinities to wild-type and Delta spike proteins to determine the impact of Omicron mutations.

23 Dec 2021

Omicron has enhanced infectivity that is only weakly neutralized by vaccination or prior infection

Scientists used virus-like particles and found that Omicron showed increased infectivity, relative to the B.1 and B.1.1 strains, which was similar to the Delta variant.

23 Dec 2021

Impact of the rapid spread of the SARS-CoV-2 Omicron variant in Southern Africa

A new study has focused on the genomic profile and early transmission dynamics of Omicron. This study revealed the dominance of the Omicron variant in regions with high levels of population immunity.

23 Dec 2021

Exploring why children have milder COVID-19 infections compared to adults

A new study has revealed that an activated pre-exposure innate interferon response in airways together with significantly reduced systemic interferon-stimulated populations are associated with relatively milder severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in children.

23 Dec 2021

Protein-based nanoparticle vaccines for protection against SARS-CoV-2

A recent review article discusses recent advances in protein-based nanoparticle vaccines against SARS-CoV-2.

22 Dec 2021

COVID can affect sperm quality for three months

Researchers determine whether SARS-CoV-2 could cross the blood-testis barrier and be detected in human semen after infection.

22 Dec 2021

Importance of booster vaccine doses for maintaining protection against the SARS-CoV-2 Omicron variant

A new study shows that although the Omicron variant exhibits significant immune escape compared to other SARS-CoV-2 variants, antibody neutralization can be largely restored with booster doses of mRNA vaccines.

22 Dec 2021

Role of novel SARS-CoV-2-derived svRNAs and the involvement of tRF in COVID-19

A new study revealed new long sv-COV-2 using T4 PNK pretreatment and qRT-PCR and also identified piRNAs and tRFs as the most abundant sncRNAs in COVID-19 positive samples.

22 Dec 2021

Omicron evades roughly twice the number of SARS-CoV-2 neutralizing antibodies than Delta

New study results highlight that Omicron has an increased affinity to ACE-2 receptors, therefore, has increased infectivity, viral load, and transmissibility compared to other variants of concern, including the Delta variant.

22 Dec 2021

Defensosomes can act as decoys to protect against SARS-CoV-2

In a new study, researchers from New York University have been examining the ability of defensosomes to combat SARS-CoV-2 infection.

22 Dec 2021

Broad neutralization of SARS-CoV-2 spike protein by an unconventional antibody fragment

A new preprint research paper posted to the bioRxiv* server examines the nature and effects of the spike mutations and identifies a vulnerable point that could help develop broad-spectrum protection against circulating variants.

21 Dec 2021

Molecular mechanism of SARS-Cov-2-induced thrombosis

Researchers demonstrate that the exposure of platelets to the SARS-CoV-2 spike protein promotes their activation and adhesion.

21 Dec 2021

An Omicron wave predicted for England from December 2021 to April 2022

A study, published on the medRxiv* preprint server, focuses on the interaction between Omicron variants and public health interventions in England that promote immunity.

20 Dec 2021

New study suggests most monoclonal antibody treatments are ineffective against Omicron SARS-CoV-2 variant

The arrival of the Omicron (B.1.1.529) variant has brought into question the effectiveness of current COVID-19 treatments in preventing infection and death. New research published in the preprint bioRxiv* server suggests the efficacy of most monoclonal antibody treatments are ineffective against Omicron.

20 Dec 2021

New Omicron variant may be better at evading vaccine-induced antibodies, research shows

The Omicron variant of SARS-CoV-2 may be significantly better than previous variants at evading vaccine-induced antibodies, according to new research from Cambridge - but preliminary evidence suggests it is less likely to cause severe COVID-19 illness in the lungs.

20 Dec 2021

ACE2 News and Research

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

Pre-existing immunity against influenza can lower SARS-CoV-2 infection burden and spread

Study suggests spike mutation makes SARS-CoV-2 Omicron milder

Researchers discover antibodies that neutralize omicron and other SARS-CoV-2 variants

SARS-CoV-2 spreads through cell-to-cell transmission, study finds

Cryo-EM of Omicron variant reveals antibody evasion by spike-ACE2 complex

Omicron has enhanced infectivity that is only weakly neutralized by vaccination or prior infection

Impact of the rapid spread of the SARS-CoV-2 Omicron variant in Southern Africa

Exploring why children have milder COVID-19 infections compared to adults

Protein-based nanoparticle vaccines for protection against SARS-CoV-2

COVID can affect sperm quality for three months

Importance of booster vaccine doses for maintaining protection against the SARS-CoV-2 Omicron variant

Role of novel SARS-CoV-2-derived svRNAs and the involvement of tRF in COVID-19

Omicron evades roughly twice the number of SARS-CoV-2 neutralizing antibodies than Delta

Defensosomes can act as decoys to protect against SARS-CoV-2

Broad neutralization of SARS-CoV-2 spike protein by an unconventional antibody fragment

Molecular mechanism of SARS-Cov-2-induced thrombosis

An Omicron wave predicted for England from December 2021 to April 2022

New study suggests most monoclonal antibody treatments are ineffective against Omicron SARS-CoV-2 variant

New Omicron variant may be better at evading vaccine-induced antibodies, research shows

Achieving and maintaining ISO/IEC 27001 and BS 10012 certifications

Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

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