Rodrigo Lázaro-Gorines, Patricia Pérez, Ignacio Heras-Murillo, Irene Adán-Barrientos, Guillermo Albericio, David Astorgano, Sara Flores, Joanna Luczkowiak, Nuria Labiod, Seandean L Harwood, Alejandro Segura-Tudela, Laura Rubio-Pérez, Yudhi Nugraha, Xiaoran Shang, Yuxing Li, Carlos Alfonso, Kaylin A Adipietro, Dinendra L Abeyawardhane, Rocío Navarro, Marta Compte, Wenbo Yu, Alexander D MacKerell, Laura Sanz, David J Weber, Francisco J Blanco, Mariano Esteban, Edwin Pozharski, Raquel Godoy-Ruiz, Inés G Muñoz, Rafael Delgado, David Sancho, Juan García-Arriaza, Luis Álvarez-Vallina
Administration of neutralizing antibodies (nAbs) has proved to be effective by providing immediate protection against SARS-CoV-2. However, dual strategies combining virus neutralization and immune response stimulation to enhance specific cytotoxic T cell responses, such as dendritic cell (DC) cross-priming, represent a promising field but have not yet been explored. Here, a broadly nAb, TNT , are first generated by grafting an anti-RBD biparatopic tandem nanobody onto a trimerbody scaffold. Cryo-EM data show that the TNT structure allows simultaneous binding to all six RBD epitopes, demonstrating a high-avidity neutralizing interaction...
October 20, 2023: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)