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Artocarpin: Multi-Targeted Mechanisms Against UV-Induced Skin Aging and Its Skin Penetration Enhancement Strategies
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Artocarpin: Multi-Targeted Mechanisms Against UV-Induced Skin Aging and Its Skin Penetration Enhancement Strategies
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Journal Article
Artocarpin: Multi-Targeted Mechanisms Against UV-Induced Skin Aging and Its Skin Penetration Enhancement Strategies
2026
Overview
Artocarpin, a prenylated flavonoid isolated from Artocarpus altilis heartwood, has emerged as a promising multi-targeted bioactive compound for combating UV-induced skin aging. This review provides a comprehensive overview of the molecular mechanisms and photoprotective efficacy of artocarpin across in vitro, in vivo and clinical study, based on the peer-reviewed literature published between 2012 and 2025, retrieved from PubMed, Scopus, and Web of Science. Delivery strategies designed to overcome the inherent physicochemical limitations of artocarpin on skin penetration are also discussed. Artocarpin demonstrates antioxidant effects through both direct free radical scavenging and activation of the Nrf2-ARE pathway, providing sustained cellular defense. Its anti-inflammatory properties target multiple signaling cascades, including the NF-κB and MAPK pathways, effectively mitigating UV-induced inflammatory response. The compound maintains dermal matrix homeostasis by inhibiting matrix metalloproteinase-1 (MMP-1) expression while preserving collagen synthesis and fibroblast mechanical function. Additionally, artocarpin exhibits selective apoptosis modulation, being cytoprotective in normal keratinocytes while acting as pro-apoptotic in damaged or abnormal cells, thereby supporting tissue homeostasis. It also inhibits melanogenesis through anti-inflammatory mechanisms rather than direct tyrosinase inhibition. Furthermore, artocarpin has been shown to induce autophagic cell death in certain cell lines; however, its role in UV-induced skin damages remains to be clarified. Despite these promising biological activities, the poor water solubility (<0.1 mg/mL) and high lipophilicity (log P ≈ 5) of artocarpin significantly limit its skin penetration. Lipid-based delivery systems, including liposomes, transfersomes, ethosomes, and nanostructured lipid carriers (NLCs), are presented as effective strategies to enhance transepidermal delivery, with each system offering distinct mechanistic advantages. Further investigations should prioritize the safety of artocarpin within each delivery system, as well as the synergistic co-encapsulation with complementary natural antioxidants to simultaneously target multiple mechanisms involved in UV-induced skin damage, thereby broadening its application in the cosmeceutical industry.
