Natural Products in Prostate Cancer: Crosstalk Among the Gut Microbiome, Androgen Receptor Signaling, and Epigenetic Regulation
Abstract
Prostate cancer remains one of the most biologically heterogeneous malignancies in men and continues to present major therapeutic challenges despite advances in androgen receptor-targeted therapy and molecular stratification. Increasing evidence suggests that prostate cancer progression is influenced not only by tumor-intrinsic genetic alterations but also by complex interactions involving androgen receptor signaling, inflammatory pathways, metabolic reprogramming, oxidative stress, epigenetic remodeling, immune dysregulation, and gut microbiome-associated signaling. Within this evolving systems-level framework, natural products have attracted increasing attention because of their ability to modulate multiple interconnected molecular pathways. This review examines the molecular basis of prostate cancer progression with particular emphasis on crosstalk among androgen receptor signaling, microbiome-associated regulation, epigenetic adaptation, inflammatory signaling, and tumor microenvironment remodeling. The emerging role of the gut microbiome in androgen metabolism, microbial metabolite production, immune regulation, and endocrine resistance is critically discussed, together with current evidence describing the biological effects of selected phytochemicals including curcumin, epigallocatechin-3-gallate, resveratrol, sulforaphane, quercetin, and genistein. These compounds may influence prostate cancer-associated pathways through modulation of inflammatory signaling, oxidative…
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