Isorhamnetin: Reviewing Recent Developments in Anticancer Mechanisms and Nanoformulation-Driven Delivery
Abstract
Natural compounds, particularly flavonoids, have emerged as promising anticancer agents due to their various biological activities and no or negligible toxicity towards healthy tissues. Among these, isorhamnetin, a methylated flavonoid, has gained significant attention for its potential to target multiple cancer hallmarks. This review comprehensively explores the mechanisms by which isorhamnetin exerts its anticancer effects, including cell cycle regulation, apoptosis, suppression of metastasis and angiogenesis, and modulation of oxidative stress and inflammation. Notably, isorhamnetin arrests cancer cell proliferation by regulating cyclins, and CDKs induce apoptosis via caspase activation and mitochondrial dysfunction. It inhibits metastatic progression by downregulating MMPs, VEGF, and epithelial-mesenchymal transition (EMT) markers. Furthermore, its antioxidant and anti-inflammatory properties mitigate reactive oxygen species (ROS) and pro-inflammatory cytokines, restricting cancer progression and modulating tumor microenvironments. Combining isorhamnetin with other treatments was also discussed to overcome multidrug resistance. Importantly, this review integrates the recent literature (2022-2024) and highlights isorhamnetin's roles in modulating cancer-specific signaling pathways, immune evasion, tumor microenvironment dynamics, and combination therapies. We also discuss nanoformulation-based strategies that significantly enhance isorhamnetin's delivery and…
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