Integrating structure-activity relationships, computational approaches, and experimental validation to unlock the...

Indole-3-carbinol (I3C) a bioactive compound derived from cruciferous vegetables, has garnered significant attention for its role in cancer prevention and its broad-spectrum biological activities, including anti-inflammatory properties and the modulation of critical signaling pathways. This review explores the structure-activity relationship (SAR) of I3C and its derivatives, emphasizing their molecular mechanisms and therapeutic potential. Key cellular targets, such as estrogen receptors, and pathways, including NF-κB, Wnt/β-catenin, and PI3K/Akt, are highlighted for their roles in apoptosis, autophagy, and the disruption of mitogenic signaling. The SAR analysis reveals the influence of molecular modifications, particularly in dimeric forms like diindolylmethane (DIM) on pharmacokinetics and bioactivity. Computational approaches, including molecular docking, molecular dynamics simulations, and density functional theory (DFT) provide insights into ligand-receptor interactions, binding energetics, and electronic properties, facilitating biological activity predictions. Experimental evidence from in vitro assays and synergistic studies underscores the cytotoxic efficacy and combinatorial benefits of I3C with conventional chemotherapeutics. Challenges in clinical translation, such as bioavailability and targeted delivery, are addressed, highlighting the potential of integrating computational and experimental findings to develop novel I3C-based therapeutics. This comprehensive analysis positions I3C as a promising scaffold for designing effective agents against cancer and other diseases.