Deficiencies in interferon-stimulated gene 15 (ISG15), a protein that normally regulates the immune response, causes mild but persistent inflammation. However, its absence also provides an unexpected advantage by increasing resistance to viral infections. Inspired by this condition and using mRNA technology, scientists at Columbia University and the Icahn School of Medicine at Mount Sinai have developed a broad-spectrum antiviral platform.
SHEN-211 is a selective 3-chymotrypsin-like protease (3CLpro) inhibitor that can protect against SARS-CoV-2. In previous work, SHEN-211 demonstrated high efficacy in inhibiting 3CLpro (IC50=24 nM) and exhibited broad-spectrum antiviral properties.
As of May 2023, the WHO recommends the use of a monovalent XBB.1 descendent lineage, such as omicron XBB.1.5, as the vaccine antigen for COVID-19 vaccines. However, BA.2.86 and its descendent lineages, such as JN.1, have emerged and rapidly spread worldwide.
Solid phase III efficacy results for Moderna Inc.’s seasonal influenza vaccine, mRNA-1010, may lead the company to resubmit a BLA for a flu/COVID-19 combo shot it has been developing. The top-line data showed Moderna’s flu vaccine produced a superior relative efficacy that was 26.6% higher than a comparator standard-dose seasonal influenza vaccine in people ages 50 and older.
Shemyakin Institute of Bioorganic Chemistry has synthesized perylenylethynylphenol derivatives acting as photosensitizers for photodynamic therapy reported to be useful for the treatment of SARS-CoV-2 infection (COVID-19).
Researchers from the Institute for Basic Science of Korea and collaborating institutions have designed a new class of peptide-based inhibitors targeting a crucial interface within the SARS-CoV-2 replication complex, offering a potential new avenue for antiviral therapy.
