ArticleResearch square2025
Repurposing a Detrimental Antibody Epitope as Targeted Therapeutics for Sepsis and Rheumatoid Arthritis.
Article in Research square, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Sepsis and rheumatoid arthritis (RA) are distinct yet mechanistically related conditions commonly driven by dysregulated inflammatory responses. Here, we explored the counterintuitive hypothesis that an epitope from a deleterious anti-tetranectin (TN) antibody (mAb9) could hold unforeseen therapeutic potential. By mapping mAb9's epitope to P2 (residue 55-70), a region crucial for TN's protective functions, we developed P2-1, a water-soluble derivative as a targeted therapy. P2-1 significantly improved survival and reduced systemic inflammation in a sepsis model, and attenuated arthritis severity and pain sensitivity in a RA model, even with therapeutic administration after disease onset. Mechanistically, P2-1 exhibited high-affinity binding to high mobility group box 1 (HMGB1) and selectively suppressed HMGB1-induced
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