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Natural Compound-Driven Nano-Self-Assembly for Multimechanistic Transdermal Antiobesity Therapy

ACS Nano, vol. 20, pp. 5171–5188

Abstract

Obesity is a complex metabolic disorder characterized by excessive fat accumulation and chronic, low-grade inflammation, contributing to a range of associated diseases. Conventional treatments are often limited by poor targeting, low efficacy, and undesirable side effects. Natural compounds with anti-inflammatory and metabolic regulatory properties have attracted considerable attention due to their safety and multitarget mechanisms. Herein, we propose an effective antiobesity strategy involving the construction of a carrier-free nanodrug (CG NPs) via the self-assembly of two natural compounds, curcumin (Cur) and glycyrrhetinic acid (GA), both of which exhibit multiple antiobesity effects. To achieve efficient and targeted delivery, CG NPs are incorporated into a dissolvable microneedle coated with black phosphorus nanosheets (CG@BP/MN), forming a biocompatible transdermal platform. When combined with mild photothermal therapy, CG@BP/MN enables transdermal drug delivery to modulate subcutaneous fat, efficiently promoting white adipose tissue browning, enhancing lipolysis, and modulating macrophage polarization. Cur and GA act synergistically to regulate lipid metabolism, attenuate inflammation, and improve insulin sensitivity. In a diet-induced obesity mouse model, this therapeutic plan significantly reduces body weight, elevates energy expenditure, and prevents weight regain following treatment cessation. Overall, this therapeutic platform represents a safe, effective, and clinically promising approach to the long-term management of obesity.

Authors 15

  1. China Pharmaceutical University · National Medical Products Administration · Universitätsklinikum Aachen · State Key Laboratory of Natural Medicine · RWTH Aachen University

    Affiliation as printed

    China Pharmaceutical University

    Institute for Experimental Molecular Imaging, Uniklinik RWTH Aachen and Helmholtz Institute for Biomedical Engineering

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    RWTH Aachen University

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

  2. China Pharmaceutical University · National Medical Products Administration · State Key Laboratory of Natural Medicine

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

  3. China Pharmaceutical University · National Medical Products Administration · State Key Laboratory of Natural Medicine

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

  4. China Pharmaceutical University · National Medical Products Administration · State Key Laboratory of Natural Medicine

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

  5. University of Bonn

    Affiliation as printed

    Life & Medical Sciences Institute (LIMES)

    University of Bonn

  6. University of Bonn · University Hospital Bonn

    Affiliation as printed

    Institute of Pharmacology and Toxicology

    University Hospital, University of Bonn

  7. University of Bonn · University Hospital Bonn

    Affiliation as printed

    Institute of Pharmacology and Toxicology

    University Hospital, University of Bonn

  8. China Pharmaceutical University · National Medical Products Administration · State Key Laboratory of Natural Medicine

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

  9. Technische Universität Dresden

    Affiliation as printed

    Centre for Translational Bone, Joint and Soft Tissue Research

    TU Dresden

  10. Chemnitz University of Technology

    Affiliation as printed

    Research Center for Materials, Architectures, and Integration of Nanomembranes (Main)

    TU Chemnitz

  11. China Pharmaceutical University · National Medical Products Administration · State Key Laboratory of Natural Medicine

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

  12. China Pharmaceutical University · National Medical Products Administration · State Key Laboratory of Natural Medicine

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

  13. Tongtong Wang corresponding

    University of Bonn · University Hospital Bonn

    Affiliation as printed

    Institute of Pharmacology and Toxicology

    University Hospital, University of Bonn

  14. Jing Shang corresponding

    China Pharmaceutical University · National Medical Products Administration

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    School of Traditional Chinese Pharmacy

  15. Wei Wang corresponding

    China Pharmaceutical University · National Medical Products Administration · State Key Laboratory of Natural Medicine

    Affiliation as printed

    China Pharmaceutical University

    NMPA Key Laboratory for Research and Evaluation of Cosmetics

    State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy

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References 93