Abstract
The SARS-CoV-2 pandemic and particularly the emerging variants have deepened the need for widely available therapeutic options. We have demonstrated that hexamer-enhancing mutations in the Fc region of anti-SARS-CoV IgG antibodies lead to a noticeable improvement in IC 50 in both pseudo and live virus neutralization assay compared to parental molecules. We also show that hexamer-enhancing mutants improve C1q binding to target surface. To our knowledge, this is the first time this format has been explored for application in viral neutralization and the studies provide proof-of-concept for the use of hexamer-enhanced IgG1 molecules as potential anti-viral therapeutics.
Keywords: C1q binding; SARS-CoV; complement; hexamer-enhancing IgG1 mutations; viral neutralization.
【저자키워드】 SARS-CoV, complement, viral neutralization, C1q binding, hexamer-enhancing IgG1 mutations, 【초록키워드】 Mutation, neutralization, knowledge, SARS-CoV-2 pandemic, variant, complement, Anti-viral, IgG antibody, Viral, Neutralization assay, viral neutralization, mutant, IgG1, Live virus, C1q binding, therapeutic options, lead, Fc region, IMPROVE, in viral, demonstrated, parental, C1q, 【제목키워드】 Capacity, CoV,