Imunon Inc. has entered into a cooperative research and development agreement with the National Institute of Allergy and Infectious Diseases (NIAID) for the evaluation of the immunogenicity and efficacy of two Imunon DNA-based Lassa virus vaccine candidates. Under the 3-year agreement, the NIAID will assess the efficacy of Placcine DNA constructs against Lassa virus in guinea pig and non-human primate disease models, including both prime and prime-boost vaccine strategies.

Research led by investigators at Ghent University in Belgium showed dysregulation of the complement part of the immune system, regulated by the pro-inflammatory protein interleukin (IL)-6, is a key driver of severe COVID-19 and a good target for drugs to treat the effects of the disease. Writing in the Aug. 23, 2023, issue of Science Translational Medicine, the researchers also described a cellular map of the alterations seen in the complement system during COVID-19 related respiratory deterioration for use in future research.

Exavir Therapeutics Inc. has received a US$3 million award from the National Institute of Allergy and Infectious Diseases (NIAID), a division of the National Institutes of Health, to support the development of XVIR-110.

Most of the West African population is at risk of infection with Lassa virus (LASV), which leads to Lassa fever that causes thousands of deaths every...

A newly discovered antibiotic has been shown to block the synthesis of bacterial cell walls via immutable targets, raising the prospect of a class of drugs that will not lose effect through the development of antimicrobial resistance. Clovibactin, isolated from soil bacteria, targets the cell wall precursor molecules lipid II, lipid III and undecaprenyl phosphate (C55PP), all of which have a pyrophosphate group in common.

Influenza A virus (IAV) is an RNA virus that can infect humans and also animals such as birds and pigs with high infectivity. Although there are several groups of anti-IAV drugs in the market, there is a need for new strategies due to the emergence of resistance and the high variability of the virus. One of the potential targets to watch in this disease is hemagglutinin (HA).

A study from Weill Cornell Medicine and The Jackson Laboratory has described the epigenetic mark SARS-CoV-2 left on immune system stem cells in the most severe cases of COVID-19 early in the pandemic, before the development of vaccines. In their work published in Cell on Aug. 18, 2023, the researchers presented a new methodology to analyze the epigenetic changes in monocytes and circulating hematopoietic stem and progenitor cells (HSPCs) that give rise to monocytes. That allowed corresponding author Steven Josefowicz and his colleagues to see if there were already changes induced by COVID-19 before HSPCs differentiated into monocytes.

How severe a viral infection is depends on how much the virus is replicating, damaging cells as it does so, and on the response of the immune system. Or so one would think. “Some of the most severe cases of COVID-19 are happening in the absence of replicating virus,” Joseph Guarnieri told BioWorld. In work published in Science Translational Medicine on Aug. 9, 2023, Guarnieri and his colleagues have described how those severe cases unfold, even as there is no replicating virus to be found.

Lemonex Inc. announced that the IND application for its mRNA vaccine candidate LEM-mR203 has been approved by the Korean Ministry of Food and Drug Safety (MFDS) on July 21, 2023. The company plans to evaluate LEM-mR203 as potential treatment for COVID-19, with the planned phase I clinical trial being designed to assess its safety and immunogenicity in healthy adults at Seoul National University Hospital, Korea.