AUTHOR=Gómez-Melero Sara , Hassouneh Fakhri , Vallejo-Bermúdez Isabel M. , Agüera-Morales Eduardo , Solana Rafael , Caballero-Villarraso Javier TITLE=Tandem CAR-T cell therapy: recent advances and current challenges JOURNAL=Frontiers in Immunology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1546172 DOI=10.3389/fimmu.2025.1546172 ISSN=1664-3224