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Scientists develop and characterize variant-specific vaccines against SARS-CoV-2

In a recent study conducted at Yale University, USA, scientists have investigated the immunogenicity of mRNA-based coronavirus disease 2019 (COVID-19) vaccine candidates encoding the spike proteins of different severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants. The findings reveal that the vaccines induce robust immune responses against SARS-CoV-2 variants. The study is currently available on the bioRxiv* preprint server.

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

SARS-CoV-2 Delta saliva viral load 15 times that of the wild type

Researchers hypothesize that a higher viral load of SARS-CoV-2 Delta variant in saliva contributes to its high transmissibility.

6 Dec 2021

SARS-CoV-2 virus-like particles elicit potent neutralizing antibody response in variant challenge

Researchers develop a virus-like particle for SARS-CoV-2 based on the co-expression of the spike, membrane, and envelope structural proteins.

6 Dec 2021

Colorimetric detection of SARS-CoV-2 viral RNA by an in vitro transcription/translation assay

This work has emphasized the clinical and translational potential of paper-based biosensors.

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

The link between cytokine storms and cardiovascular problems in COVID-19 patients

New findings may help doctors choose effective COVID-19 treatment regimens for patients with heart complications.

6 Dec 2021

Sino Biological Launches A Panel of Research Reagents for SARS-CoV-2 Omicron Variant (B.1.1.529)

Sino Biological, Inc. (https://www.sinobiological.com; SHE: 301047) announced today that it has launched a panel of research reagents for the newly identified Omicron variant (B.1.1.529) of the SARS-CoV-2 virus

From Sino Biological Inc. 6 Dec 2021

Equipment-free handheld microfluidic injection provides visible readout of SARS-CoV-2 detection

In this paper, a group of researchers from Harvard Medical School, McGill University, and Tianjin University describes an on-chip diagnostic technology for the direct detection of SARS-CoV-2 N protein in nasal samples that combines the advantages of hydrodynamic microfluidic filtration and sandwich immunoassay.

5 Dec 2021

New test can quickly and easily assess antibody effectiveness against COVID-19 variants

Biomedical engineers at Duke University have devised a test to quickly and easily assess how well a person's neutralizing antibodies fight infection from multiple variants of COVID-19 such as Delta and the newly discovered Omicron variant.

4 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

New genetic technology for gene expression analysis of cancer cells

In this interview, News-Medical speaks to Dr. Rong Lu about her recent research into the development of a new genetic technology for gene expression analysis of cancer cells.

3 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

Large study of plasma proteome unravels its genetic determinants and relationship with human disease

In a study published today in Nature Genetics, scientists at deCODE genetics , a subsidiary of the pharmaceutical company Amgen, demonstrate how measuring the levels of a large number of proteins in plasma at population scale when combined with data on sequence diversity and RNA expression dramatically increases insights into human diseases and other phenotypes.

2 Dec 2021

Study suggests efficacy of SARS-CoV-2 main protease inhibitors is not compromised in current COVID-19 variants

A new study has focussed on assessing the Mpro mutants of newly emerged SARS-CoV-2 variants.

2 Dec 2021

Researchers report antibody cocktails are promising candidate tools for controlling new SARS-CoV-2 variants

Researchers from Academia Sinica in Taiwan have been investigating new antibodies that could have strong effects against SARS-CoV-2 infection.

2 Dec 2021

Impact of engineered ACE2-Fc on SARS-CoV-2 infection

Researchers employ a structure-guided approach for the development of a series of ACE2-Fc variants using human IgG1 or IgG3 backbone.

1 Dec 2021

Structure function analysis of potent antibodies against Beta SARS-CoV-2 variant

A team of researchers from UK and US institutions created a large panel of mAbs derived from memory B cells of convalescent Beta subjects to better understand the antigenic landscape of Beta.

1 Dec 2021

DNA sequencing of residual disease accurately identifies leukemia patients who would relapse

In pediatric and young adult patients with acute lymphoblastic leukemia (ALL) treated with tisagenlecleucel (Kymriah), DNA sequencing-based detection of residual disease between three and 12 months accurately identified all patients who would eventually relapse, while other methods were less predictive.

1 Dec 2021

Assay News and Research

Scientists develop and characterize variant-specific vaccines against SARS-CoV-2

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

SARS-CoV-2 Delta saliva viral load 15 times that of the wild type

SARS-CoV-2 virus-like particles elicit potent neutralizing antibody response in variant challenge

Colorimetric detection of SARS-CoV-2 viral RNA by an in vitro transcription/translation assay

SARS-CoV-2 immune memory in mRNA vaccine recipients

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

The link between cytokine storms and cardiovascular problems in COVID-19 patients

Sino Biological Launches A Panel of Research Reagents for SARS-CoV-2 Omicron Variant (B.1.1.529)

Equipment-free handheld microfluidic injection provides visible readout of SARS-CoV-2 detection

New test can quickly and easily assess antibody effectiveness against COVID-19 variants

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

New genetic technology for gene expression analysis of cancer cells

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

Large study of plasma proteome unravels its genetic determinants and relationship with human disease

Study suggests efficacy of SARS-CoV-2 main protease inhibitors is not compromised in current COVID-19 variants

Researchers report antibody cocktails are promising candidate tools for controlling new SARS-CoV-2 variants

Impact of engineered ACE2-Fc on SARS-CoV-2 infection

Structure function analysis of potent antibodies against Beta SARS-CoV-2 variant

DNA sequencing of residual disease accurately identifies leukemia patients who would relapse

Exploring Strategies for Targeting Kinases in Innate Immunity eBook

How Omics Technologies Are Transforming Biological Research and Drug Discovery

How microplastics and bacteria interact to drive antibiotic resistance

Single-cell proteomics: Revealing proteome diversity from cellular heterogeneity to non-canonical biology

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