Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2067/48594
Titolo: Lignin Nanoparticles Deliver Novel Thymine Biomimetic Photo-Adducts with Antimelanoma Activity
Autori: Gabellone, Sofia
Piccinino, Davide
Filippi, Silvia
Castrignan√≤, Tiziana 
Zippilli, Claudia
Del Buono, Davide
Saladino, Raffaele 
Rivista: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 
Data pubblicazione: 2022
Abstract: 
We report here the synthesis of novel thymine biomimetic photo-adducts bearing an alkane spacer between nucleobases and characterized by antimelanoma activity against two mutated cancer cell lines overexpressing human Topoisomerase 1 (TOP1), namely SKMEL28 and RPMI7951. Among them, Dewar Valence photo-adducts showed a selectivity index higher than the corresponding pyrimidine-(6-4)-pyrimidone and cyclobutane counterpart and were characterized by the highest affinity towards TOP1/DNA complex as evaluated by molecular docking analysis. The antimelanoma activity of novel photo-adducts was retained after loading into UV photo-protective lignin nanoparticles as stabilizing agent and efficient drug delivery system. Overall, these results support a combined antimelanoma and UV sunscreen strategy involving the use of photo-protective lignin nanoparticles for the controlled release of thymine dimers on the skin followed by their sacrificial transformation into photo-adducts and successive inhibition of melanoma and alert of cellular UV machinery repair pathways.
URI: http://hdl.handle.net/2067/48594
ISSN: 1422-0067
DOI: 10.3390/ijms23020915
Diritti: Attribution 4.0 International
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