Immune checkpoint receptors (LAG3, CD27) connect via PPI intermediates to Ca2+ and K+ channels, targetable by relatlimab (FDA-approved) and varlilumab (Phase 2). This work maps previously unknown links between CRC driver genes and ion channel regulation, with the ataluren-RPS21-KCNQ2 axis ready for pharmacological testing.
All four compounds successfully rescued p53 expression in H1299 R213X cells, outperforming Ataluren and matching G418 at significantly lower concentrations. The restored p53 exhibited nuclear localization upon genotoxic stress and induced transcription of canonical targets. These findings highlight the therapeutic potential of these compounds for treating TP53 nonsense mutations in cancer and lay the groundwork for the development of targeted nonsense mutation-specific treatment for a wide range of pathologies, including new emergent p53 related diseases.