MDA5 multimerization on LINE RNA drives pathogenic extracellular immune complexes in autoimmunity
T. Hsu, Xi Wang, Jiayan Zhang, Yukari Isayama, Viktoria E. M. Schindler, Eveline Van Gompel, Hadil Maadadi, Celia Torres-Arancivia, Akiko Shimazaki-Takahashi, Nina Kurihara, Mariko Kondo, Marina Galesic, Antonella Notarnicola, Sharmin Sultana, A. Maeda, , Sun Hur
Patient-derived anti-MDA5 antibodies bind MDA5 filaments in two germline-encoded modes; only filament immune complexes activate innate immunity, with LINE-derived dsRNA scaffolding circulating filaments in patient plasma.
bioRxiv · Jul 31, 2026 · PreprintBiochemistry✦ In-depth digest