Antigen News and Research

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In vivo generation of engineered CAR T cells can reduce fibrosis and restore cardiac function after heart injury

A novel immunotherapy strategy using in vivo generation of transient engineered chimeric antigen receptor (CAR) T cells, through the delivery of modified mRNA, can reduce fibrosis and restore cardiac function in a mouse model of heart failure, researchers report.

6 Jan 2022

New approach with mRNA preparation reprograms T cells to attack heart fibroblasts

An experimental immunotherapy can temporarily reprogram patients' immune cells to attack a specific target via only a single injection of messenger RNA (mRNA), similar to the mRNA-based COVID-19 vaccines, according to a new study from researchers in the Perelman School of Medicine at the University of Pennsylvania.

6 Jan 2022

Host kinase identified as an inhibition target for SARS-CoV-2

In this experiment, the chemical probe SGC-CK2-1 inhibited virus replication at nanomolar concentration, showing a highly selective effect on the kinase.

6 Jan 2022

Serological antibody response to SARS-CoV-2 infection at a population level

The scientists in this study used pooled convalescent serum to examine the serologic response in a population at risk of infection.

6 Jan 2022

Comparison of neutralization of SARS-CoV-2 variants of concern Omicron and Delta

The purpose of this study was to determine the breadth of neutralizing activity generated by exposure to certain SARS-CoV-2 variants, vaccinations, or both.

6 Jan 2022

COVID boosters hinder SARS-CoV-2 Omicron

A new preprint research paper reports on the state of current knowledge as to the immune evasion capability of this variant, linking it to the type of vaccine used and the vaccination protocol.

6 Jan 2022

After SARS-CoV-2 booster dose memory B cells adapt to Omicron

Memory B cells never forget recurrent viral exposures and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is no exception, according to a new medRxiv* preprint study.

5 Jan 2022

Wistar announces initiation of Phase 2 clinical study of VK-2019 in patients with advanced head and neck cancer

The Wistar Institute announces the initiation of a Phase 2 clinical study of VK-2019 in patients with advanced Epstein-Barr Virus (EBV)-positive nasopharyngeal carcinoma (NPC) and lymphoma.

5 Jan 2022

Efficacy of rapid antigen diagnostic tests for the detection of infectious individuals at mass gatherings

New study findings show that incidence data often underestimates the prevalence of COVID-19 infectious individuals at a given point in time in a population.

5 Jan 2022

COVID-19 mRNA vaccines offer protection against Omicron variant in pregnancy

A new study provides insights into the persistence of extra-neutralizing properties of mRNA vaccine-induced antibodies resulting in protection against the Omicron variant of SARS-CoV-2.

5 Jan 2022

Oral bacteria-based SARS-CoV-2 vaccine platform

In a new study, researchers engineered the bacterial strain, Salmonella, to express differently-sized antigens to serve as vaccine platforms.

5 Jan 2022

Researchers compare survival rates of AML patients treated with two forms of transplantation methods

Acute myeloid leukemia (AML) is a common type of blood cancer that has a relatively low survival rate. It is particularly deadly for patients suffering from refractory and relapsed AML (R/R AML), meaning their cancer has stopped responding to treatment and has returned after a period of remission.

5 Jan 2022

Scientists provide a structural framework for Omicron immune evasion and ACE2 receptor recognition

An interesting preprint research paper describes structural changes resulting from the multiple mutations found in the recent Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 is the causative agent behind the coronavirus disease 2019 (COVID-19) pandemic. In addition, the research describes the consequent effects of these changes on Omicron’s infectivity and immune evasion capabilities.

5 Jan 2022

Characteristics and outcomes in patients hospitalized with COVID-19 in South Africa

A new research letter assessed patients hospitalized with a positive SARS-CoV-2 test during the fourth wave compared to the previous waves.

4 Jan 2022

Siemens Healthineers Announces FDA Emergency Use Authorization for CLINITEST® Rapid COVID-19 Antigen Self-Test

The CLINITEST Rapid COVID-19 Antigen Self-Test has received FDA EUA for unsupervised self-testing for the SARS-CoV-2 virus by individuals age 14 and older (or adult-collected samples from individuals ages 2-13).

From Siemens Healthineers 4 Jan 2022

Sino Biological Deposits Recombinant Omicron Proteins and Antibodies to BEI Resources

Sino Biological, Inc. (SZSE: 301047) has recently deposited reagents for the Omicron variant, including recombinant proteins to Spike and Nucleocapsid, and antibody products to BEI Resources, a central repository for reagents to support infectious disease research.

From Sino Biological Inc. 4 Jan 2022

SARS-CoV-2 spike T cell responses from vaccines or infection remain robust against Omicron

In a new study, a team of researchers from multi-national institutions discovered that 70-80% of CD4 and CD8 T cell responses to spike were consistent across research groups. Moreover, although having far more mutations, the magnitude of Omicron cross-reactive T cells was comparable to that of the Beta and Delta variants.

3 Jan 2022

Antigen News and Research

In vivo generation of engineered CAR T cells can reduce fibrosis and restore cardiac function after heart injury

New approach with mRNA preparation reprograms T cells to attack heart fibroblasts

Host kinase identified as an inhibition target for SARS-CoV-2

Serological antibody response to SARS-CoV-2 infection at a population level

Comparison of neutralization of SARS-CoV-2 variants of concern Omicron and Delta

COVID boosters hinder SARS-CoV-2 Omicron

After SARS-CoV-2 booster dose memory B cells adapt to Omicron

Wistar announces initiation of Phase 2 clinical study of VK-2019 in patients with advanced head and neck cancer

Efficacy of rapid antigen diagnostic tests for the detection of infectious individuals at mass gatherings

COVID-19 mRNA vaccines offer protection against Omicron variant in pregnancy

Oral bacteria-based SARS-CoV-2 vaccine platform

Researchers compare survival rates of AML patients treated with two forms of transplantation methods

Scientists provide a structural framework for Omicron immune evasion and ACE2 receptor recognition

Characteristics and outcomes in patients hospitalized with COVID-19 in South Africa

Siemens Healthineers Announces FDA Emergency Use Authorization for CLINITEST® Rapid COVID-19 Antigen Self-Test

Sino Biological Deposits Recombinant Omicron Proteins and Antibodies to BEI Resources

SARS-CoV-2 spike T cell responses from vaccines or infection remain robust against Omicron

Production of molecular probes of spike and subdomains for all SARS-CoV-2 variants

The impact of natural selection on sequence diversity in SARS-CoV-2

Omicron spike-specific binding antibodies attenuate disease, despite increasing transmission

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