ArticleInternational journal of nanomedicine2025
Dissolvable Microneedle Administration Combined with Ultrasonic Cavitation Promotes Melanoma Penetrating Capability of Ce6.
Article in International journal of nanomedicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Microneedle-based theranostics for melanoma: Advances and outlook.Materials today. Bio · 2026Review
- Recent advances in dissolving microneedles for breast cancer immunotherapy: local delivery and tumor microenvironment remodeling.Frontiers in immunology · 2026Review
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Authors and funding
9 authors.
Funding
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Abstract
Purpose: Melanoma, a highly aggressive superficial malignancy with rising incidence and mortality, faces limited sonodynamic therapy (SDT) efficacy due to poor sonosensitizer accumulation and penetration. To overcome this, we employed chlorin e6 (Ce6), a high-ROS-yield sonosensitizer, and enhanced its tumor delivery using a synergistic microneedle (MN) and ultrasound (US) strategy. Methods: Using melanoma as an application scenario, a "stepwise drug delivery" system was developed. It consisted of dissolving MN encapsulating US-responsive nanoparticles (Ce6-PFP@PLGA, CPP) and termed CPP@MN. CPP@MN breaks through the stratum corneum to deliver CPP to tumors, followed by US-triggered cavitation that mediates perfluoropentane (PFP) phase transition to enhance the tumor-penetrating capability of chlorin e6 (Ce6). Delivery efficacy was validated using three experimental models: an in vitro agarose skin phantom, ex vivo pig skin, and in vivo tumors. Furthermore, the anti-tumor efficacy of US-combined CPP@MN was evaluated at the cellular level and in tumor-bearing mice. Results: According to the results, CPP@MN showed excellent transdermal performance, including rapid dissolution of sonosensitizer and sufficient mechanical strength. MN combined with US increased the tumor penetration depth of loading drug by 2.5-4 times across all experimental models. Ultrasonic cavitation promotes nanoparticle-derived Ce6 release and deeper tumor diffusion, resulting in specific anti-tumor efficacy. Conclusion: This innovative "stepwise drug delivery" system addresses persistent challenges in superficial tumor SDT, including inadequate sonosensitizer aggregation and poor tissue penetration, while establishing a multifunctional platform for spatiotemporally controlled drug release that sequentially overcomes the skin biological barriers.
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