Antigen News and Research

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Study suggests T-cells don't determine survival in severe COVID-19

In the study, which appeared on the pre-print server medRxiv, the team found that when the monkeys were reinfected, the T cell-depleted animals showed anamnestic immune responses, the enhanced reaction of the body's immune system to an antigen that is related to an antigen previously encountered.

6 Apr 2021

Novel hydrogel-based vaccine formulation shows high efficacy against SARS-CoV-2

A fascinating new preprint research paper posted to the bioRxiv* server discusses impressively high neutralizing responses elicited with a single dose of a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine formulation, which could help turn the tide of the current pandemic if validated.

6 Apr 2021

New nanoparticle SARS-CoV-2 vaccine confers robust protection with single dose after two weeks

In a methodologically ‘state-of-the-art’ approach, US researchers have developed a protein-based nanoparticle vaccine against coronavirus disease (COVID-19), with a swift generation of antibodies and the potential to protect individuals who cannot receive other COVID-19 vaccines for medical reasons. The research is posted to the bioRxiv* preprint server.

5 Apr 2021

New software package employs deep-learning algorithms to analyze T-cell receptor sequencing data

Researchers at the Bloomberg~Kimmel Institute for Cancer Immunotherapy at the Johns Hopkins Kimmel Cancer Center have developed DeepTCR, a software package that employs deep-learning algorithms to analyze T-cell receptor (TCR) sequencing data. T-cell receptors are found on the surface of immune T cells.

5 Apr 2021

FIND announces launch of a request for proposals to expand access to COVID-19 testing services

The Foundation for Innovative New Diagnostics (FIND) announced today the launch of a request for proposals (RFP) to accelerate the development, manufacturing, and market availability of accurate, affordable, quality-assured and easy-to-use SARS-CoV-2 self-tests for use in low- and middle-income countries (LMICs).

5 Apr 2021

New approach to CAR T gene therapy yields efficient and longer-lasting response against HIV

A UCLA research team has shown that using a truncated form of the CD4 molecule as part of a gene therapy to combat HIV yielded superior and longer-lasting results in mouse models than previous similar therapies using the CD4 molecule.

3 Apr 2021

Combination of tumor cell vaccine and checkpoint therapy creates effective immune response

A personalized tumor cell vaccine strategy targeting Myc oncogenes combined with checkpoint therapy creates an effective immune response that bypasses antigen selection and immune privilege, according to a pre-clinical study for neuroblastoma and melanoma.

3 Apr 2021

Backed by millions in public and private cash, rapid Covid tests are coming to stores near you

Scientists and lawmakers agree that over-the-counter Covid tests could allow desk workers to settle back into their cubicles and make it easier to reopen schools and travel.

1 Apr 2021

Stem cell transplants offer long-term benefits for pediatric cancer patients receiving immunotherapy

Children and young adults who receive CAR T-cell therapy for the most common childhood cancer - acute lymphoblastic leukemia - suffer remarkably fewer relapses and are far more likely to survive when the treatment is paired with a subsequent stem cell transplant, a new study finds.

1 Apr 2021

Can asymptomatic COVID-19 confer long-term immunity?

Researchers examined the antibody responses in symptomatic and asymptomatic individuals recovered from COVID-19 to see if there was a discernable difference in their humoral immune responses and long-term protection from reinfection with SARS-CoV-2.

1 Apr 2021

FDA takes action to advance OTC and other screening test development

Following recent U.S. Food and Drug Administration actions to support test development, the FDA took swift action this week to get more tests for screening asymptomatic individuals on the market. Today, the agency authorized several tests for over-the-counter (OTC) use without a prescription when used for serial screening.

1 Apr 2021

CDC and NIH launch community COVID-19 testing initiative

The Centers for Disease Control and Prevention, in collaboration with the National Institutes of Health, has launched an innovative community health initiative called "Say Yes! COVID Test" starting in Pitt County, North Carolina, and coming soon to Chattanooga/Hamilton County Tennessee.

31 Mar 2021

Infliximab may hinder the effectiveness of some COVID-19 vaccines

A new study reports reduced vaccine efficacy following the use of a single COVID-19 vaccine dose in people who are on the immunosuppressive monoclonal antibody Infliximab.

31 Mar 2021

Single dose of Pfizer and Oxford vaccines shows 60% efficacy in elderly care home residents

A new study deals with the effect of two widely used vaccines in eliciting humoral immunity against the virus in this group. These are the Oxford/AstraZeneca viral-vectored vaccine (ChAdOx1 nCoV-19), and the Pfizer/BioNTech’s messenger RNA-based vaccine (BNT162b2). Both express the viral spike antigen, and both are currently being employed in the UK’s vaccination program.

30 Mar 2021

Study finds rapid increase in IgG and IgA antibody levels following COVID-19 mRNA vaccination

A new study describes the kinetics of the antibody response to the earliest approved vaccines against COVID-19, which were developed on an mRNA platform.

30 Mar 2021

Nanoparticles elicit neutralizing antibodies to diverse SARS-CoV-2 variants

Spike-protein-based nanoparticle vaccine candidates were retained longer in follicular dendritic cells and showed higher germinal center reactions in lymph node follicles compared to soluble spike protein vaccine.

30 Mar 2021

Pfizer-BioNTech vaccine causes steep drop in COVID-19 among healthcare workers

A team of scientists from Spain has recently evaluated the efficacy of an mRNA-based COVID-19 vaccine developed by Pfizer-BioNTech (BNT162b2). Their findings reveal that a 2-dose regimen of BNT162b2 vaccine is capable of providing almost 100% protection against SARS-CoV-2 infection in healthcare workers.

29 Mar 2021

Researchers explore a case of diabetic ketoacidosis in patient with atezolizumab-induced autoimmune diabetes

In a new publication from Cardiovascular Innovations and Applications, Sharen Lee and Gary Tse from Laboratory of Cardiovascular Physiology, Hong Kong, HKG, China, Second Hospital of Tianjin Medical University, Tianjin, China and Xiamen Cardiovascular Hospital, Xiamen, China consider a case of atezolizumab-induced autoimmune diabetes mellitus presenting with diabetic ketoacidosis.

29 Mar 2021

Researchers develop novel nanoadjuvant COVID-19 vaccine candidate

Researchers at the National Center for Nanoscience and Technology of China, the Chinese Academy of Sciences (CAS), introduced a new vaccine, which compromises the spike protein’s receptor-binding domain (RBD) and the manganese nanoadjuvant (MnARK), inducing humoral and cellular responses.

29 Mar 2021

Large U.S. study identifies sociodemographic and clinical factors associated with SARS-CoV-2 testing and positivity

The massive and continuing outbreak of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), throughout the world, has led to a staggering toll of over 549,000 deaths in the USA, among over 30 million cases. A new preprint research paper posted to the medRxiv* server discusses the factors related to the chances of testing positive for this virus.

29 Mar 2021

Antigen News and Research

Study suggests T-cells don't determine survival in severe COVID-19

Novel hydrogel-based vaccine formulation shows high efficacy against SARS-CoV-2

New nanoparticle SARS-CoV-2 vaccine confers robust protection with single dose after two weeks

New software package employs deep-learning algorithms to analyze T-cell receptor sequencing data

FIND announces launch of a request for proposals to expand access to COVID-19 testing services

New approach to CAR T gene therapy yields efficient and longer-lasting response against HIV

Combination of tumor cell vaccine and checkpoint therapy creates effective immune response

Backed by millions in public and private cash, rapid Covid tests are coming to stores near you

Stem cell transplants offer long-term benefits for pediatric cancer patients receiving immunotherapy

Can asymptomatic COVID-19 confer long-term immunity?

FDA takes action to advance OTC and other screening test development

CDC and NIH launch community COVID-19 testing initiative

Infliximab may hinder the effectiveness of some COVID-19 vaccines

Single dose of Pfizer and Oxford vaccines shows 60% efficacy in elderly care home residents

Study finds rapid increase in IgG and IgA antibody levels following COVID-19 mRNA vaccination

Nanoparticles elicit neutralizing antibodies to diverse SARS-CoV-2 variants

Pfizer-BioNTech vaccine causes steep drop in COVID-19 among healthcare workers

Researchers explore a case of diabetic ketoacidosis in patient with atezolizumab-induced autoimmune diabetes

Researchers develop novel nanoadjuvant COVID-19 vaccine candidate

Large U.S. study identifies sociodemographic and clinical factors associated with SARS-CoV-2 testing and positivity

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