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New method for isolating Omicron subvariant and evaluating resistance to therapeutic and vaccine-elicited antibodies

Researchers demonstrated a viral amplification procedure to isolate the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron subvariants.

21 Nov 2022

The impact of seasonal coronavirus immunity on susceptibility to SARS-CoV-2 infection and COVID-19 vaccination

Researchers investigated whether immunity against seasonal human coronavirus spike proteins of HKU1, OC43, NL63, or 229E could protect against SARS-CoV-2 in vitro.

28 Oct 2022

Researchers design a COVID-19 vaccine construct using hybrid SARS-CoV-2 spike protein and nucleocapsid protein peptides

Researchers designed a COVID-19 vaccine construct using hybrid SARS-CoV-2 S protein (containing SARS-CoV-2 Delta and Omicron variant mutations) and N protein peptides that confer T lymphocyte-mediated immune protection.

25 Oct 2022

Vaccine-induced neutralizing and non-neutralizing antibody activity against SARS-CoV-2

A new study demonstrated that vaccine-induced antibody functions against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) diminish with age.

7 Oct 2022

Vaccination drives superior functional antibody breadth compared to natural infection with SARS-CoV-2

Researchers assessed the potency and breadth of antibody recognition and effector function among healthy and high-risk individuals following natural SARS-CoV-2 infection or mRNA COVID-19 vaccination.

21 Sep 2022

Alternative approaches to functional and phenotypic assays using multi-parameter flow cytometry

Synexa is an industry-leading biomarker and large molecule bio analytic research service provider. In this interview, NewsMedical speaks with Natalie Strickland, a principal scientist at Synexa, about alternative approaches to flow cytometry.

From Synexa Life Sciences 5 Sep 2022

The efficacy of therapeutic monoclonal antibodies and serum from monoclonal antibody-treated patients against Omicron sublineages

Researchers evaluated the neutralization of SARS-CoV-2 Omicron BA.2, BA.4, and BA.5 sub-variants by therapeutic monoclonal antibodies.

16 Aug 2022

The identification and characterization of an anti-SARS-CoV-2 monoclonal antibody with superior breadth and potency

A recent study published in Nature Microbiology identified a monoclonal antibody neutralizing SARS-CoV-2 Omicron variants.

28 Jul 2022

High-level resistance of SARS-CoV-2 BA.4 against neutralizing antibodies

Researchers evaluates the sensitivity of BA.4 in both vaccinated and unvaccinated individuals infected with the SARS-CoV-2 variants.

20 Jul 2022

Immunoglobulin G isotypes switch class following repeated SARS-CoV-2 mRNA vaccination

Researchers reported a class switch in SARS-CoV-2-specific antibodies due to repeated mRNA vaccinations.

13 Jul 2022

Scientists investigate impact of SARS-CoV-2 RBD mutations across variants

In a recent study posted to the medRxiv* pre-print server, Australian researchers comprehensively investigated the impact of 39 receptor-binding-domain (RBD) mutations in six severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs) and variants of interest (VOIs).

12 Jul 2022

Patient-derived antibody cocktail active across SARS-CoV-2 variants of concern

In a recent study published in the journal Science Immunology, researchers in the United States described a rare anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) three antibody cocktail IMM-BCP-01.

4 Jul 2022

Fc-effector functions for selecting COVID-19 convalescent plasma

In a recent study posted to the bioRxiv* preprint server, researchers demonstrated that coronavirus disease 2019 (COVID-19) convalescent plasmas (CCPs) with low neutralizing and high fragment crystallizable (Fc)-effector activity result in effective prophylaxis.

15 Jun 2022

Immunity conferred by COVID-19 vaccines in solid organ transplant recipients

In a recent study posted to the medRxiv* preprint server, researchers estimated the humoral immunity imparted by the two/three doses of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines in solid organ transplant recipients (SOTRs).

18 May 2022

Review aims to deepen the understanding of the role of natural killer cells in COVID-19

In a recent study published in Biomedicines, researchers explored the utility of natural killer (NK) cells in coronavirus disease 2019 (COVID-19).

28 Apr 2022

Antibody dependent cellular cytotoxicity may influence HIV transmission from mother to child during breastfeeding

According to new research from Boston Medical Center, the antibody function known as antibody dependent cellular cytotoxicity (ADCC) and the ADCC sensitivity of HIV strains may influence the transmission of HIV from mother to child during breastfeeding.

21 Apr 2022

SARS-CoV-2 ORF8 interferes with antibody-dependent cellular cytotoxicity

Researchers describe the effect of ORF8 and the immune-evasion activity used by SARS-CoV-2 to escape humoral responses.

5 Apr 2022

Topologically designed antibody candidates for SARS-CoV-2 and cancer therapies

A recent study presented topologically engineered fragment crystallizable-fusion proteins and antibodies as therapeutic options for diseases like human coronaviruses infections and cancers.

25 Mar 2022

Protective immunity signatures provided by convalescent plasma for the development of COVID-19 antibody therapeutics

Researchers conducted a comprehensive and systematic analysis of functional SARS-CoV-2 antibody profiles in a controlled randomized trial of severe COVID-19 hospitalized individuals treated with COVID-19 CCP.

25 Feb 2022

Superior immune response in vaccinated after infection with Omicron compared to unvaccinated

In a recent study posted to the medRxiv* preprint server, researchers evaluated the cross-reactivity of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant-triggered neutralization and fragment crystallizable (Fc) effector functions between coronavirus disease 2019 (COVID-19)-vaccinated and unvaccinated individuals in South Africa.

16 Feb 2022