Humanizing a CD28 signaling domain affects CD8 activation, exhaustion and stem-like precursors
Alexander E. Brady, Shankar K. Revu, Dongwen Wu, Hannah Fisk, Khadija Kone, Alexandria Lydecker, Elliott J. Purser, Norah L. Smith, Zachary T. Hilt, Sarah Woodyear, Sarah Caddy, Sébastien Gingras, Brian D. Rudd, Mandy J. McGeachy
A single amino acid substitution in CD28 enhances signaling, leading to increased CD8 activation and Tpex generation during viral infection, while accelerating exhaustion in chronic infection.
bioRxiv · Mar 10, 2025 · PreprintImmunology