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Scientists illuminate how some antibodies can effectively disable ebolaviruses

Some survivors of ebolavirus outbreaks make antibodies that can broadly neutralize these viruses--and now, scientists at Scripps Research have illuminated how these antibodies can disable the viruses so effectively.

16 Apr 2021

A novel method to visualize protein channels in bacteria

Almost all bacteria rely on the same emergency valves--protein channels that pop open under pressure, releasing a deluge of cell contents.

13 Apr 2021

Researchers provide ultrastructural details of SARS-CoV-2-infected respiratory epithelial cells

A team of scientists from the United Kingdom recently investigated the ultrastructural details of the attachment, entry, and budding processes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the human airway epithelium. They have used a highly differentiated air-liquid interface cultures of airway epithelium to thoroughly investigate the viral infection cycle. The study is currently available on the bioRxiv* preprint server.

12 Apr 2021

Researchers unveil new SARS-CoV-2 inhibitor that targets viral immune evasion

In a recent quest for an effective antiviral compound, UK researchers have purified a specific enzyme of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) known as nsp15 and optimized fluorescent biochemical endoribonuclease assays to screen a custom chemical library with over 5,000 commercial compounds. The study is currently available on the bioRxiv* preprint server.

11 Apr 2021

Tiny SARS-CoV-2 protein may have big implications for future COVID-19 treatments

A tiny protein of SARS-CoV-2, the coronavirus that gives rise to COVID-19, may have big implications for future treatments, according to a team of Penn State researchers.

9 Apr 2021

Researchers discover a new monoclonal antibody that is effective against SARS-CoV-2 variants

A new monoclonal antibody targets a particular region of the RBD on the SARS-CoV-2. This region is usually not accessible to immune cells, which may be why it has broad neutralizing capabilities.

9 Apr 2021

Novel protein transport system mediates toxin secretion by tuberculosis pathogen

Six years ago, Michael Niederweis, Ph.D., described the first toxin ever found for the deadly pathogen Mycobacterium tuberculosis.

9 Apr 2021

Oxford-AstraZeneca COVID vaccine induces cell spikes similar to SARS-CoV-2's

Scientists from the University of Oxford and the University of Southampton report in the journal ACS Central Science that cells infected with the ChAdOx1 vaccine produce spike proteins on the cells similar to those produced by natural SARS-CoV-2 infection.

9 Apr 2021

Prefusion SARS-CoV-2 spike-based vaccine candidate shows high safety and efficacy in phase I trial

A new preprint research paper posted to the medRxiv server reports the results of the first human trial of the prefusion stabilized SARS-CoV-2 spike vaccine MVC-COV1901 in Taiwan.

8 Apr 2021

Scientists use cryo-electron microscopy to unravel how 'guardian' of the genome works

Scientists from the Genomic Integrity and Structural Biology Group led by Rafael Fernández-Leiro at the Spanish National Cancer Research Centre have discovered how certain proteins ensure the repair of errors introduced into the DNA during its replication.

6 Apr 2021

The use of mammalian cell surface display for rapid characterization of SARS-CoV-2 variants

A research group from the U.S. demonstrated the practicality of a spike display system in order to accelerate vaccine design, but also to swiftly appraise the effects of mutations in emerging strains of the SARS-CoV-2.

5 Apr 2021

Researchers provide experimental evidence for synaptic plasticity in the human brain

Neuroscientists agree that a person's brain is constantly changing, rewiring itself and adapting to environmental stimuli.

31 Mar 2021

New mRNA COVID-19 vaccine candidate shows promise in vivo

Researchers report that a new lipid nanoparticle mRNA coronavirus disease 2019 (COVID-19) vaccine candidate protected 70% of mice expressing the human angiotensin-converting enzyme 2 (ACE2), while all the non-vaccinated mice died.

31 Mar 2021

Soft X-ray microscopy shows how viral pathogens penetrate human cells

How do viral pathogens succeed in penetrating human cells? Which cellular mechanisms do they use to multiply efficiently and, in doing so, how do they change the structure of their host cell? These questions are the focus of a pan-European research project called "Compact Cell-Imaging Device" (CoCID), in which Heidelberg scientists are playing a major role.

31 Mar 2021

Study shows how viral distribution of SARS-CoV-2 in the human body relates to tissue damage

Researchers have mapped the distribution of SARS-CoV-2, the virus that causes COVID-19, in deceased patients with the disease, and shed new light on how viral load relates to tissue damage.

31 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

Study reveals the structure of key enzyme that may advance cancer research

In order to develop more effective drugs against a range of cancers, researchers have been investigating the molecular structure of many diseased-linked enzymes in the body. An intriguing case in point is Taspase 1, a type of enzyme known as a protease.

30 Mar 2021

HSV-1 infection induces strain-specific transcriptional differences in infected neurons

Why do some people with cold sores around their lips experience painful lesions, while others have no symptoms at all, yet still spread the virus? A new study conducted at Penn State finds that these differences could be due to variations in the way certain strains of herpes simplex (HSV-1) -- the virus that causes cold sores, as well as genital herpes -- activate gene expression in neurons.

29 Mar 2021

Research sheds light on a new neuroprotective mechanism to control damage following brain injury

When the brain suffers injury or infection, glial cells surrounding the affected site act to preserve the brain's sensitive nerve cells and prevent excessive damage.

26 Mar 2021

Drugging RNA synthesis in SARS-CoV-2 as novel therapeutic avenue

In a new study, the role of a coronavirus-specific protein domain in SARS-CoV-2 viral synthesis initiation is investigated, and potential therapeutic solutions have been explored.

25 Mar 2021

Electron Microscopy News and Research

Scientists illuminate how some antibodies can effectively disable ebolaviruses

A novel method to visualize protein channels in bacteria

Researchers provide ultrastructural details of SARS-CoV-2-infected respiratory epithelial cells

Researchers unveil new SARS-CoV-2 inhibitor that targets viral immune evasion

Tiny SARS-CoV-2 protein may have big implications for future COVID-19 treatments

Researchers discover a new monoclonal antibody that is effective against SARS-CoV-2 variants

Novel protein transport system mediates toxin secretion by tuberculosis pathogen

Oxford-AstraZeneca COVID vaccine induces cell spikes similar to SARS-CoV-2's

Prefusion SARS-CoV-2 spike-based vaccine candidate shows high safety and efficacy in phase I trial

Scientists use cryo-electron microscopy to unravel how 'guardian' of the genome works

The use of mammalian cell surface display for rapid characterization of SARS-CoV-2 variants

Researchers provide experimental evidence for synaptic plasticity in the human brain

New mRNA COVID-19 vaccine candidate shows promise in vivo

Soft X-ray microscopy shows how viral pathogens penetrate human cells

Study shows how viral distribution of SARS-CoV-2 in the human body relates to tissue damage

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

Study reveals the structure of key enzyme that may advance cancer research

HSV-1 infection induces strain-specific transcriptional differences in infected neurons

Research sheds light on a new neuroprotective mechanism to control damage following brain injury

Drugging RNA synthesis in SARS-CoV-2 as novel therapeutic avenue

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Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

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