Description: <p><b>Vanillic Acid</b> - 4-Hydroxy-3-Methoxybenzoic Acid</p>
<p><b>Type:</b> Phenolic acid / hydroxybenzoic acid derivative</p>
<p><b>Sources:</b> Vanillic acid occurs naturally in numerous plants and foods and is also produced through metabolism of other phenolic compounds including vanillin and ferulic-acid-related compounds.</p>
<p><b>Function:</b> Vanillic acid is a naturally occurring phenolic acid with antioxidant, anti-inflammatory, metabolic, and antiproliferative activities. It can influence oxidative stress, mitochondrial function, apoptosis, cell-cycle regulation, inflammatory signaling, and pathways including NF-κB, PI3K/AKT/mTOR, JAK/STAT, and MAPK signaling.</p>
<p><b>Cancer:</b> Preclinical studies demonstrate antiproliferative, pro-apoptotic, anti-invasive, anti-migratory, and anti-angiogenic effects. Reported mechanisms include inhibition of NF-κB, PI3K/AKT/mTOR and JAK/STAT signaling, reduction of VEGF, MMP-2 and MMP-9, cell-cycle arrest, and modulation of mitochondrial apoptosis and oxidative stress. Clinical anticancer efficacy has not been established.</p>
<p><b>Alzheimer's Disease:</b> Preliminary and indirect evidence suggests potential neuroprotective relevance through antioxidant, anti-inflammatory, mitochondrial, and anti-apoptotic mechanisms. Vanillic acid occurs among bioactive constituents of medicinal plants investigated in Alzheimer's disease models, but direct evidence for vanillic acid as an Alzheimer's treatment remains limited.</p>