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COVID-19 severity is correlated with T cell receptor repertoire signatures

In a new study published in the bioRxiv* preprint server, researchers found that specific TCR sequences predicted the severity of coronavirus disease 2019 (COVID-19) infection. Additionally, there was evidence of increased CDR3 sequences and changes in k-mer motifs for patients with severe illness.

6 Dec 2021

SARS-CoV-2 S2 immunization as a pan-coronavirus vaccine approach

A new mouse model suggests that prior HCoV-OC43 S immunity primes neutralising antibody responses to otherwise subimmunogenic SARS-CoV-2 S exposure as well as promotes S2-targeting antibody responses.

6 Dec 2021

Scientists find infection of sustentacular cells in the olfactory epithelium of COVID-19 patients

It is now widely known that COVID-19 is associated with the transient or long-term loss of olfaction (the sense of smell) but the mechanisms remain obscure.

6 Dec 2021

Safety and immunogenicity of SARS-CoV-2 recombinant spike protein vaccine

Researchers have presented the results of phase 1 and phase 2 clinical trials of a SARS-CoV-2 recombinant spike protein vaccine (Abdala).

6 Dec 2021

SARS-CoV-2 immune memory in mRNA vaccine recipients

Researchers measured SARS-CoV-2–specific antibody, memory B cell, and memory T cell responses in a group of healthy subjects who generated primary immune responses to two doses of mRNA vaccine compared to a group of SARS-CoV-2–recovered vaccines.

6 Dec 2021

Announcing the Winners of The Scientist’s Top 10 Innovations of 2021

Each year The Scientist seeks to highlight the latest and greatest tools, technologies, and techniques to hit the life science landscape.

From Resolve Biosciences 6 Dec 2021

Scientists identify molecular features of antibody responses to SARS-CoV-2 spike

New study identifies diverse molecular features of public antibody responses to SARS-CoV-2 spike protein.

5 Dec 2021

Preclinical data shows enhanced T-cell responses & neutralization of SARS-CoV-2 variants with ImmunityBio heterologous vaccination

A new study supports the hypothesis that heterologous vaccination can provide an increased immune response against virus infection, supporting several other studies that have indicated similar events.

5 Dec 2021

A case of post-vaccination MIS in an adult without prior SARS-CoV-2 infection

A new case study on the report of multisystem inflammatory syndrome (MISC) in a 22-year-old woman in South Korea after vaccination.

5 Dec 2021

The emergence and evolution of SARS-CoV-2 and its VOCs

A review article discusses the evolution of SARS-CoV-2 and the emergence of variants of concern.

5 Dec 2021

Systematic review: The involvement of bitter taste receptors in cancer

Humans have 25 different types of functional bitter taste receptors. These are found on our tongue, where they facilitate the taste perception of bitter tasting compounds. In addition, there are increasing findings that cells of extra-oral organs also have such receptors.

4 Dec 2021

Telomeric DNA damage response may increase susceptibility of elderly people to COVID-19

SARS-CoV-2 causes the pandemic coronavirus disease COVID-19, that is more harmful for elderly people, who show more severe symptoms and are at higher risk of hospitalization and death.

3 Dec 2021

New nanoparticle adjuvant could help make vaccines more powerful

A common strategy to make vaccines more powerful is to deliver them along with an adjuvant - a compound that stimulates the immune system to produce a stronger response.

3 Dec 2021

Quantum mechanical model offers insights into SARS-CoV-2 evolution

Researchers used an ab initio full quantum mechanical model to characterize the spike protein RBD interactions with host cells and gain mechanistic insights into SARS-CoV-2 evolution.

3 Dec 2021

CRISPR-based DETECTR® assay for faster SARS-CoV-2 surveillance

Researchers from the USA discuss the development and validation of CRISPR-Cas12-based COVID-19 variant DETECTR® assay for the detection of SARS-CoV-2.

3 Dec 2021

Novel peptide-antibody fusion molecule enhances SARS-CoV-2 variant neutralization

A recent study reports neutralizing efficacy for a fused peptide-antibody molecule against SARS-CoV-2, providing hope that therapeutic neutralizing antibodies may soon be available.

3 Dec 2021

Penn researchers illuminate key molecular details of T-cell exhaustion process

Specially engineered immune cells called CAR T cells have proven themselves to be a powerful weapon against blood cancers, but against solid tumors they are much less effective, due in part to a process called T-cell exhaustion.

2 Dec 2021

In-depth analysis of SARS-CoV-2 specific T cells in unexposed individuals

A new study aimed to analyze SARS-CoV-2 specific T-cells in unexposed individuals.

2 Dec 2021

Green seaweed extract exhibits anti-SARS-CoV-2 activity in vitro

Researchers investigate the antiviral activities of SSPS extracted from green seaweed Ulva sp. to demonstrate the anti-SARS-CoV-2 activity of ulvans.

2 Dec 2021

NEI researchers identify unique population of B cells that tamps down the immune system

Researchers at the National Eye Institute (NEI) have identified, isolated, and characterized a unique population of B cells that tamps down the immune system, reducing chronic inflammation.

2 Dec 2021