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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.

Spike-based DNA vaccine shows excellent protection against SARS-CoV-2 in a hamster model

A study conducted at the United States Army Research Institute of Infectious Diseases shows how a relatively simple full-length DNA vaccine against spike glycoprotein of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can elicit neutralizing antibody response in an animal model – even after a single shot with simple jet injection technique.

11 Nov 2020

Uracil point mutations found in SARS-CoV-2 variants alter innate immune responses

Tohoku University scientists have found that human editing enzymes are likely behind a type of mutation in the COVID-19 virus that stimulates the release of pro-inflammatory molecules called cytokines by immune cells in the body.

11 Nov 2020

Low prevalence of SARS-CoV-2 specific antibodies in Lubbock, Texas

A recent study published in the Journal of Primary Care and Community Health has assessed the prevalence of antibodies developed specifically against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in front-line workers in Lubbock, Texas. According to the study findings, immunoglobulin G (IgG)-specific anti-SARS-CoV-2 antibodies have been detected in only 0.73% of the participants.

11 Nov 2020

Nafamostat mesylate initially reduces SARS-CoV-2 viral loads in hamsters, study finds

Researchers have found that nafamostat mesylate, when injected in the nasal cavity of Syrian hamsters, can decrease initial SARS-CoV-2 viral loads in their nose. However, this effect was temporary and further testing is required to determine clinically significant effects. The research group's findings are available on the preprint server bioRxiv*.

11 Nov 2020

Promising new antivirals target arboviruses and SARS-CoV-2: Nodosome inhibitors

A new study describes two promising small molecules that inhibit a host cell factor, called nucleotide binding oligomerization domain-containing protein 2 (NOD2), that inhibits the replication and spread of many arboviruses. This could lead to the development of broad-spectrum antivirals. The study's findings have been published on the preprint server bioRxiv*.

10 Nov 2020

Novel super-activating macrophage receptor could explain hyper-inflammation in severe COVID-19

Immunity is a curious thing. While essential in protecting the body against invading pathogens and foreign antigens, it can also turn against the body and trigger destructive immunological processes. A new study published on the preprint server bioRxiv* in November 2020 reports on the role played by hyperactive macrophages in a range of acute and chronic hyper-inflammatory conditions.

10 Nov 2020

Researchers uncover new 'hidden' gene in SARS-CoV-2

Researchers have discovered a new "hidden" gene in SARS-CoV-2--the virus that causes COVID-19--that may have contributed to its unique biology and pandemic potential.

10 Nov 2020

Lessons from USS Theodore Roosevelt on limiting shipborne COVID-19 outbreaks

A new study published on the preprint server medRxiv* in November 2020 discusses such a scenario in terms of various possible approaches. It suggests that a viable strategy could be evacuating everyone from the ship and extensive surveillance testing.

10 Nov 2020

SARS-CoV-2 RNA genome structure reveals potential targets for development of drugs

The SARS-CoV-2 coronavirus RNA genome structure was studied in detail by researchers from the University of Groningen, the International Institute of Molecular and Cell Biology in Warsaw, and Leiden University.

10 Nov 2020

Clinical study of personalized cancer vaccine to expand after promising preliminary data

A clinical trial at the University of Arizona Health Sciences designed to study the safety and effectiveness of a personalized cancer vaccine in combination with the immunotherapy drug Pembrolizumab will expand its cohort after promising preliminary data was presented at the annual meeting of the Society for the Immunotherapy of Cancer.

10 Nov 2020

Pioneering technique sheds new light on the origin of metastases

Research can now target metastases more effectively thanks to a new approach that takes into account the enormous heterogeneity and phenotypes of tumor cells, with a team from UNIGE pinpointing a gene that prevents their development.

10 Nov 2020

Identifying SARS-CoV-2 spike protein mutations resistant to antibodies

Using a set of different monoclonal antibodies, researchers determined different mutations in the SARS-CoV-2 spike protein that leads to resistance. Understanding these resistant mutations is important in developing effective therapeutic strategies.

10 Nov 2020

Immunotherapy drugs trigger inflammatory arthritis in subset of cancer patients

Since doctors began treating cancer patients with immunotherapy drugs called checkpoint inhibitors nearly a decade ago, they have observed that a subset of these patients experience a side effect that clinically looks like inflammatory arthritis.

10 Nov 2020

New three-step approach promises to improve COVID-19 testing accuracy

One critical barrier in efforts to control the COVID-19 pandemic has been the relatively high false-negative rate of the most commonly-used Reverse Transcription Polymerase Chain Reaction (RT-PCR) testing methods.

10 Nov 2020

Researchers discover unique anti-cancer function for previously well-characterized protein

The development and progression of cancer is a complicated process that occurs when cells in the body grow out of control. Many different mechanisms and pathways that directly affect cell proliferation have been uncovered.

10 Nov 2020

Exosome-mediated mRNA delivery generates broad immune response to multiple SARS-CoV-2 proteins

Recently, researchers from The Johns Hopkins University School of Medicine, Baltimore, MD, USA, and Capricor Therapeutics, Inc., Beverly Hills, CA, USA, described a new approach to SARS-CoV-2 vaccine development using exosomes to deliver mRNAs that encode the antigens from multiple structural proteins of the virus.

9 Nov 2020

Using wastewater epidemiology to monitor SARS-CoV-2 in Houston

Now, a team of researchers at Rice University, Baylor College of Medicine, and the Houston Health Department show SARS-CoV-2 RNA wastewater levels to be a strong predictive of trends in the nasal positivity rate two weeks in advance. This could help track the positivity rate for populations, speeding up the isolation and treatment of infected people.

9 Nov 2020

Spit testing may aid non-invasive concussion diagnosis

Doctors may soon be able to more accurately diagnose concussions by measuring the number of certain molecules in a person's saliva, according to Penn State College of Medicine researchers.

9 Nov 2020

Translational study within SARS-CoV-2 infected cells opens up new therapeutic avenues

A recent study published on the preprint server bioRxiv in October 2020 shows what the protein translation process looks like in specific terms. In doing so, the study has provided new insights that might prove helpful in developing new therapies for COVID-19 patients.

9 Nov 2020

ACE2 and TMPRSS2 not the only virus-receptors to mediate SARS-CoV-2 entry

However, a recent study published on the preprint server bioRxiv in November 2020 uncovers the major role played by the N-terminal domain of the SARS-CoV-2 virus in host infection. This could be of great use in measuring the usefulness of antibodies used in convalescent plasma therapy for COVID-19.

9 Nov 2020

RNA News and Research

Further Reading

Spike-based DNA vaccine shows excellent protection against SARS-CoV-2 in a hamster model

Uracil point mutations found in SARS-CoV-2 variants alter innate immune responses

Low prevalence of SARS-CoV-2 specific antibodies in Lubbock, Texas

Nafamostat mesylate initially reduces SARS-CoV-2 viral loads in hamsters, study finds

Promising new antivirals target arboviruses and SARS-CoV-2: Nodosome inhibitors

Novel super-activating macrophage receptor could explain hyper-inflammation in severe COVID-19

Researchers uncover new 'hidden' gene in SARS-CoV-2

Lessons from USS Theodore Roosevelt on limiting shipborne COVID-19 outbreaks

SARS-CoV-2 RNA genome structure reveals potential targets for development of drugs

Clinical study of personalized cancer vaccine to expand after promising preliminary data

Pioneering technique sheds new light on the origin of metastases

Identifying SARS-CoV-2 spike protein mutations resistant to antibodies

Immunotherapy drugs trigger inflammatory arthritis in subset of cancer patients

New three-step approach promises to improve COVID-19 testing accuracy

Researchers discover unique anti-cancer function for previously well-characterized protein

Exosome-mediated mRNA delivery generates broad immune response to multiple SARS-CoV-2 proteins

Using wastewater epidemiology to monitor SARS-CoV-2 in Houston

Spit testing may aid non-invasive concussion diagnosis

Translational study within SARS-CoV-2 infected cells opens up new therapeutic avenues

ACE2 and TMPRSS2 not the only virus-receptors to mediate SARS-CoV-2 entry

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