Nanoparticle uses the body's own copper to fight tumors
Jiang M, Pu F, Shu Y, Xu G, Zhu J
Biomedical Research
This is a biomedical cancer therapy study with no connection to plants, gardens, or plant science.
Researchers designed a nanoparticle that carries both a specialized DNA enzyme and a drug precursor into cancer cells. Once inside, the tumor's own chemical environment releases both pieces, letting the cell's natural copper drive a reaction that builds the active drug only where it's needed, sparing healthy cells elsewhere in the body.
Key Findings
The nanoplatform (COF-P@C-A) delivers both a DNAzyme catalyst (CLICK-17) and prodrugs together in a single particle, avoiding the need for separate, staggered dosing.
High intracellular glutathione and acidic pH inside tumor cells trigger degradation of the carrier, simultaneously freeing the catalyst and prodrug while consuming excess glutathione to free up usable copper.
The system uses the cell's own endogenous copper to drive a click chemistry reaction (CuAAC) for localized drug synthesis, eliminating the need for external copper supplements or reductants.
chevron_right Technical Summary
Scientists built a tiny particle that uses copper already inside cancer cells to trigger a chemical reaction that assembles a cancer drug right at the tumor, reducing damage to healthy tissue.
Abstract Preview
Original paper
COF@DNAzyme Empowering Endogenous Copper for One-Stitch Bioorthogonal Catalysis-Based Anticancer Therapy.
Bioorthogonal chemistry, particularly the copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction, holds great promise for in situ prodrug activation to minimize systemic toxicity in disease t...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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