ArticleDrug delivery and translational research2026
Biguanide‑modified ursolic acid as a multifunctional lipid‑mimetic carrier of DOX liposome for synergistic chemotherapy.
Article in Drug delivery and translational research, 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
Doxorubicin (DOX) therapy is constrained by limited tumor accumulation, inefficient intracellular delivery, and dose-dependent systemic toxicity. Ursolic acid can potentiate DOX activity, but its poor compatibility with liposomal assembly complicates stable co-loading. We synthesized a biguanide-modified UA derivative (UAB) as an amphiphilic lipid-mimetic component and fabricated hyaluronic acid (HA)-modified liposomes co-encapsulating DOX and UAB (HA-DOX@UAB Lips). The optimized formulation showed high encapsulation efficiencies for both agents, a uniform nanoscale size distribution, and pH-dependent DOX release. In BGC-823 gastric cancer cells, HA-DOX@UAB Lips produced the highest intracellular DOX-associated fluorescence, synergistic cytotoxicity, the greatest inhibition of clonogenic growth and wound closure, and the strongest apoptosis-associated response among the tested formulations. In H22 hepatocellular carcinoma-bearing mice used as a non-gastric proof-of-concept model, HA-DOX@UAB Lips produced the greatest tumor suppression without overt short-term organ injury. These findings support UAB as a multifunctional lipid-mimetic component and bioactive partner for DOX co-delivery. Further studies in dedicated gastric cancer models and receptor-specific experiments are required to establish gastric-cancer-specific efficacy and the contribution of CD44 to cellular uptake.
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