DFT Structural and UV-Vis Spectral Insights into Photosensitivity of Vandetanib: A Dual EGFR/SARS-CoV-2 Mpro Inhibitor.

ABSTRACT: Background: Vandetanib is a clinically approved epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) used in the treatment of medullary thyroid cancer. Recent studies have also suggested potential activity against the SARS-CoV-2 main protease (Mpro), indicating dual therapeutic relevance. However, its clinical use is limited by photosensitivity side effects, the molecular basis of which remains poorly understood. This study aims to elucidate the conformational, spectroscopic, and electronic properties of vandetanib underlying its photoreactivity. Methods: Density functional theory (DFT) was employed to explore vandetanib's conformational landscape, electronic structure, and spectroscopic behavior. Low-energy conformers were identified and compared with expe

SUBMITTER: Wang F 

PROVIDER: S-EPMC12472933 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature