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Ribonucleic acid (RNA) is a biologically important type of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, and a phosphate.

Research explores the biophysical behavior of SARS-CoV-2 nucleocapsid protein

In a groundbreaking paper currently available on the bioRxiv* preprint server, the researchers from the Washington University School of Medicine and Stony Brook University showed how nucleocapsid protein of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is dynamic, disordered and phase separates with RNA – informing, in turn, the discovery of drugs that disrupt viral packaging.

21 Jun 2020

Environmental conditions affect the stability of SARS-CoV-2, study finds

A new study led by Marshall University researcher M. Jeremiah Matson found that environmental conditions affect the stability of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in human nasal mucus and sputum.

21 Jun 2020

Killifish model helps unravel molecular events that lead to loss of protein homeostasis during brain aging

Aging is the main risk factor for dementia and Parkinson's disease. As age progresses, toxic protein aggregates pile up in the brain and impair neuronal function.

21 Jun 2020

Balanced B and T cell response required to control SARS-CoV-2

A new study by researchers in the Netherlands and published on the preprint server bioRxiv in June 2020 describes the differences in T and B cell responses seen in patients with severe COVID-19.

21 Jun 2020

Viruses can steal genetic signals from hosts to expand their own genomes

Like a scene out of "Invasion of the Body Snatchers," a virus infects a host and converts it into a factory for making more copies of itself.

19 Jun 2020

Characterizing "re-positives" in recovered COVID-19 patients

The novel coronavirus pandemic has been spreading silently or explosively in almost every country of the world, causing almost half a million deaths and nearly 8.5 million reported cases in just six months. While much is known about the virus and the illness by now, far more remains unclear. One such is the prevalence and persistence of antiviral immunity following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

19 Jun 2020

Widespread testing could help stop the spread of COVID-19

The world is now in the grips of a historic pandemic. The death toll from the novel coronavirus has climbed to more than 117,000 in the United States and 448,000 around the world.

18 Jun 2020

Using stem cells to study the developmental effects of Neandertal DNA

Protocols that allow the transformation of human induced pluripotent stem cell (iPSC) lines into organoids have changed the way scientists can study developmental processes and enable them to decipher the interplay between genes and tissue formation, particularly for organs where primary tissue is not available.

18 Jun 2020

First genome-wide CRISPR screen reveals genes that control SARS-CoV-2 infection

By performing a genome-wide CRISPR screen on the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), U.S. researchers identified novel proviral genes and pathways, and highlighted host genes that may regulate coronavirus disease (COVID-19) pathogenesis, as well as revealing potential targets for novel treatment approaches. Their findings are currently available on the bioRxiv* preprint server.

18 Jun 2020

SARS-CoV-2 in breast milk can be inactivated using Holder pasteurization

Researchers in Germany have shown that human milk infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can be pasteurized using a standard method to ensure it is safe for breastfeeding.

18 Jun 2020

Study identifies a previously unknown mechanism that contributes to intestinal cancer

A MedUni Vienna study group has identified a previously unknown mechanism involved in the development of intestinal cancer: The bacterial microbiome activates the so-called immune checkpoint Ido1 in Paneth cells, a special cell that is only found in the gastrointestinal tract, thereby preventing local intestinal inflammation.

18 Jun 2020

Scientists use CRISPR tool to make rapid, precise cuts in genomic material

In a series of experiments using human cancer cell lines, scientists at Johns Hopkins Medicine say they have successfully used light as a trigger to make precise cuts in genomic material rapidly, using a molecular scalpel known as CRISPR, and observe how specialized cell proteins repair the exact spot where the gene was cut.

18 Jun 2020

SARS-CoV-2 found in river water, flags risk for humans, wildlife and livestock

Now, a new study by scientists in Ecuador and published on the preprint server medRxiv in June 2020 shows that the virus is present in river water too, which could imply a significant transmission risk in developing countries with inadequate sanitation facilities.

17 Jun 2020

Study reveals new insight into Fuchs’ endothelial corneal dystrophy

The molecular changes that lead to Fuchs' endothelial corneal dystrophy (FECD) occur decades before the disease causes blurry vision and other noticeable symptoms in patients, new research by UT Southwestern scientists shows.

17 Jun 2020

ACE2 and pattern recognition receptor genes increase with age

A recent study by researchers in California and published on the preprint server bioRxiv* in June 2020 shows that advancing age is associated with increased expression of pattern recognition receptor (PRR) genes and ACE2 receptors, possibly accounting in part for the increased severity of the disease in older adults.

17 Jun 2020

Highly conserved RNA structures are essential for SARS-CoV-2 replication and pathogenesis

A recent study from the University of North Carolina at Chapel Hill revealed how selective pressure helps in preserving secondary RNA structures in coronavirus genomes, unveiling a pivotal role of these elements in viral replication and pathogenesis. The paper is currently available on the bioRxiv* preprint server.

17 Jun 2020

Mapping RNA sequences of therapeutic value in the SARS-CoV-2 genome

Now, in new research published on the preprint server bioRxiv European scientists have performed RNA structure probing to obtain a single-base resolution secondary structure map of the full SARS-CoV-2 coronavirus genome.

17 Jun 2020

Antibiotic X-206 effective against SARS-CoV-2 in vitro

The current study published on the preprint server bioRxiv aims to understand how these compounds affect SARS-CoV-2 in vitro. The researchers from Aarhus University in Denmark examined 11 natural PEIs, with a single synthetic analog, screening them for inhibitory activity against the CPE of SARS-CoV-2 infecting cultured cells with overexpression of TMPRSS2, a serine protease that is instrumental in cleaving the spike protein of the virus.

16 Jun 2020

Hepatitis C virus co-opts an immune protein to evade antiviral defenses

By discovering a trick the hepatitis C virus uses to evade the immune system, scientists have identified a new antiviral defense system that could be used to treat many virus infections, according to new research published today in eLife.

16 Jun 2020

Two potent small molecules appear to suppress tumor growth in multiple cancers

City of Hope scientists have identified and developed two potent small molecules that appear to suppress tumor growth in multiple cancers even when other treatments cease to work, possibly due to the development of drug resistance.

16 Jun 2020