ArticleJournal of enzyme inhibition and medicinal chemistry2026
Discovery of ALA-hydroxypyridinone hybrids: novel strategies for photodynamic therapy against superficial tumours.
Article in Journal of enzyme inhibition and medicinal chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Superficial tumours can be effectively treated with photodynamic therapy (PDT), which is characterised by its targeted approach and enhanced safety profile. 5-aminolevulinic acid (ALA), a precursor to the endogenous photosensitiser PpIX, has been widely utilised in PDT. However, its high hydrophilicity, poor permeability and stability, necessitates structural modifications to improve its drug-like properties and increase the PpIX yield. Hydroxypyridinone (HPO) iron chelators can synergistically enhance PpIX production when administered in conjunction with ALA, as well as inducing tumour cell death through iron chelation. Consequently, this study designed a series of novel ALA-HPO derivatives, functioning as dual prodrugs to elevate intracellular PpIX levels and enhance photodynamic anti-tumour effects. The optimised compound
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