Antigen News and Research

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SARS-CoV-2 spike may impair antigen presentation by CD8 T cells

A new study published on the bioRxiv preprint server aims to identify specific viral epitopes on the spike protein from various regions of the spike protein and the T cell responses they evoke.

27 Jan 2021

Wistar researchers discover new enzymatic function of the Epstein-Barr Virus protein

Researchers at The Wistar Institute have discovered a new enzymatic function of the Epstein-Barr Virus (EBV) protein EBNA1, a critical factor in EBV's ability to transform human cells and cause cancer.

27 Jan 2021

New SARS-CoV-2 variant must be curbed to protect UK health services, warn experts

A new research project called REACT-1 – launched by researchers at the Imperial College London, Imperial College Healthcare NHS Trust, and Ipsos MORI – has aimed to better understand the dynamics of SARS-CoV-2’s viral spread across the UK.

26 Jan 2021

Recombinant SARS-CoV-2 protein vaccine less immunogenic but more antigenic than expected

Now, a new preprint research paper posted to the medRxiv server presents preliminary results of a stabilized SARS-CoV-2 pre-fusion spike protein vaccine expressed in a baculovirus system (CoV2 preS dTM), with two different adjuvant formulations.

26 Jan 2021

Bispecific antibody shows efficacy against new SARS-CoV-2 variants

A team of international scientists has recently developed a bispecific antibody that can bind two non-overlapping regions of the spike receptor-binding domain of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and completely prevent the viral-host interaction.

25 Jan 2021

Combining anti-tumor antibodies with standard-of-care improves therapeutic outcomes in cancer

The cover for issue 2 of Oncotarget features Figure 4, "Combination therapy TA99/ICB reduced the lung tumor burden in the B16 model of metastases," published in "Improved therapeutic efficacy of unmodified anti-tumor antibodies by immune checkpoint blockade and kinase targeted therapy in mouse models of melanoma" by Pérez-Lorenzo, et al. which reported that here, the authors showed that removing immune suppression and enhancing stimulatory signals increased the anti-tumor activity of unmodified TA99 antibodies with a significant reduction of growth of solid tumors and lung metastases in mouse models of melanoma.

25 Jan 2021

Researchers identify protein that may represent a safer treatment target for pancreatic cancer

Researchers from Queen Mary University of London, have identified a protein that may represent a novel therapeutic target for the treatment of pancreatic cancer.

22 Jan 2021

Modified version of CAR T-cell therapy shows promise in targeting neuroblastoma

Chimeric Antigen Receptor T-cell therapy--CAR T--has revolutionized leukemia treatment. Unfortunately, the therapy has not been effective for treating solid tumors including childhood cancers such as neuroblastoma.

22 Jan 2021

Blood group associated with cardiovascular events in COVID-19 patients

An illuminating new study by scientists at Harvard Medical School, USA, describes the correlation of such conditions with the ABO blood group. The team's findings may help assess the risk of COVID-19 patients for such complications, promoting early diagnosis and underscoring potential needs for preventive and therapeutic care where possible.

21 Jan 2021

New technique can rapidly diagnose prostate cancer from urine

Prostate cancer is one of the most common cancers among men. Patients are determined to have prostate cancer primarily based on PSA, a cancer factor in blood.

21 Jan 2021

Eliminating key gene could revive exhausted immune cells to battle solid tumors

Eliminating a single gene can turn exhausted cancer-fighting immune cells known as CD8+ T cells back into refreshed soldiers that can continue to battle malignant tumors, a new study led by UT Southwestern researchers suggests.

20 Jan 2021

Putatively immature dendritic cells may induce robust immune responses in young children

A study by Ludwig-Maximilians-Universitaet (LMU) in Munich researchers shows that putatively immature dendritic cells found in young children are able to induce robust immune responses. The results could lead to improved vaccination protocols.

20 Jan 2021

Over 100 million in India may have been infected by SARS-CoV-2

A large new study posted on the preprint server medRxiv describes the seropositivity rate to this virus, as well as the persistence of antibodies over time, both neutralizing and others.

19 Jan 2021

Mapping antibody reactivity in COVID-19 patients by using multi-coronavirus protein microarray

In an exciting, state-of-the-art study currently available on the medRxiv* preprint server, US researchers created a multi-coronavirus protein microarray containing full-length proteins, peptide libraries, and overlapping protein fragments from the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), as well as four other human coronaviruses.

19 Jan 2021

Researchers design armored immune cells to attack recurring cancer in liver transplant patients

Duke-NUS Medical School researchers, together with collaborators in Singapore, have designed armored immune cells that can attack recurring cancer in liver transplant patients, while temporarily evading immunosuppressant drugs patients take to avoid organ rejection.

19 Jan 2021

Memory B cell response to SARS-CoV-2 evolves up to 6 months after infection, study finds

A new study shows that the memory B cell response to SARS-Cov-2 evolves between 1.3 and 6.2 months after infection in a manner that is consistent with antigen persistence.

19 Jan 2021

Study predicts good passive immunotherapy donors to combat COVID-19

A US-based research team determine good candidates for convalescent plasma donations in promoting passive immunity among severely-ill COVID-19 patients.

19 Jan 2021

Lower CD4 T cell reactivity to seasonal coronaviruses found in healthcare workers with COVID-19

A new study by US-based researchers describes the results of a study on the immune response among healthcare workers, in particular, their T cell responses predating the pandemic.

19 Jan 2021

Large study finds SARS-CoV-2 viral load is lowest in children

A new study by researchers in the Netherlands confirms the hypothesis that for SARS-CoV-2 infection, higher age is associated with increased viral loads.

19 Jan 2021

Prolonged shedding and multiple mutations 154 days after initial SARS-CoV-2 diagnosis reported

An interesting new preprint published on the medRxiv server describes an immunosuppressed patient with coronavirus disease 2019 (COVID-19) who continued to shed the virus for an astounding 154 days. During this period, the virus underwent numerous mutations.

19 Jan 2021

Antigen News and Research

SARS-CoV-2 spike may impair antigen presentation by CD8 T cells

Wistar researchers discover new enzymatic function of the Epstein-Barr Virus protein

New SARS-CoV-2 variant must be curbed to protect UK health services, warn experts

Recombinant SARS-CoV-2 protein vaccine less immunogenic but more antigenic than expected

Bispecific antibody shows efficacy against new SARS-CoV-2 variants

Combining anti-tumor antibodies with standard-of-care improves therapeutic outcomes in cancer

Researchers identify protein that may represent a safer treatment target for pancreatic cancer

Modified version of CAR T-cell therapy shows promise in targeting neuroblastoma

Blood group associated with cardiovascular events in COVID-19 patients

New technique can rapidly diagnose prostate cancer from urine

Eliminating key gene could revive exhausted immune cells to battle solid tumors

Putatively immature dendritic cells may induce robust immune responses in young children

Over 100 million in India may have been infected by SARS-CoV-2

Mapping antibody reactivity in COVID-19 patients by using multi-coronavirus protein microarray

Researchers design armored immune cells to attack recurring cancer in liver transplant patients

Memory B cell response to SARS-CoV-2 evolves up to 6 months after infection, study finds

Study predicts good passive immunotherapy donors to combat COVID-19

Lower CD4 T cell reactivity to seasonal coronaviruses found in healthcare workers with COVID-19

Large study finds SARS-CoV-2 viral load is lowest in children

Prolonged shedding and multiple mutations 154 days after initial SARS-CoV-2 diagnosis reported

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