Dumont E, Wibowo M, Roca-Sanjuán D, Garavelli M, Assfeld X, Monari A. Resolving the Benzophenone DNA-Photosensitization Mechanism at QM/MM Level.
J Phys Chem Lett 2015;
6:576-80. [PMID:
26262469 DOI:
10.1021/jz502562d]
[Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Benzophenone, the parent of the diarylketone family, is a versatile compound commonly used as a UV blocker. It may also trigger triplet-based DNA photosensitization. Therefore, benzophenone is involved in DNA photodamage induction. In the absence of experimentally resolved structure, the mechanism of DNA damage production remains elusive. Employing a hybrid quantum mechanics/molecular mechanics approach, here we address the spin transfer mechanism between this drug and proximal thymine, that is, the DNA nucleobase most prone to suffer triplet damages.
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