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학술저널
저자정보
AMATYA REEJU (경상국립대학교) 김도연 (인제대학교) 민경아 (인제대학교) 신명철 (경상국립대학교)
저널정보
한국약제학회 Journal of Pharmaceutical Investigation Journal of Pharmaceutical Investigation 제52권 제6호
발행연도
2022.11
수록면
775 - 785 (11page)
DOI
10.1007/s40005-022-00593-9

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Purpose A hydrogel containing dextran-coated iron oxide nanoparticles (DEX-IONP) was developed, and its applicability in topical photothermal therapy (PTT) of skin cancer was explored in vitro and in vivo. Methods DEX-IONP carbopol hydrogel was prepared by adopting the pH-triggered in situ gel-forming method. After preparation, physical characteristics and the photothermal activities of the DEX-IONP gel were evaluated in vitro in varying DEX-IONP concentrations. The photothermal activity was further examined in B16F10 s.c. tumor-bearing mice. Lastly, the efficacy of DEX-IONP gel-based topical PTT was evaluated in vivo. Results The prepared DEX-IONP gel retained high viscosity favorable to maintain at the applied site. In addition, the DEXIONP gel could induce effective heating by laser irradiation. The cellular and in vivo studies evidenced the applicability of DEX-IONP in topical PTT. Finally, the preliminary efficacy study results in the B16F10 s.c. mice model demonstrated that tumor volumes could be significantly reduced by the topical PTT with DEX-IONP gel. Notably, by a single PTT treatment with 100 μgFe/mL DEX-IONP gel and applying 0.5 W laser power for 10 min, the tumor growth could be significantly inhibited by 85%. Conclusion Overall, our results demonstrate that DEX-IONP gels may serve as an effective topical PTT agent.

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