L-Sulforaphane

L-Sulforaphane (CAS No.: 142825-10-3) is a naturally derived chiral isothiocyanate and the bioactive enantiomer of sulforaphane, originating from glucoraphanin abundant in cruciferous vegetables such as broccoli, and is widely utilized in cell biology, pharmacology, and drug discovery research. This compound functions as a potent activator of the Keap1/Nrf2/ARE signaling pathway by disrupting the interaction between Nrf2 and its cytoplasmic repressor Keap1, thereby promoting nuclear translocation of Nrf2 and transcriptional upregulation of phase II detoxifying and antioxidant enzymes, which contribute to cellular defense against oxidative stress and xenobiotic damage. In parallel, L-sulforaphane modulates additional signaling networks, including inhibition of NF-κB-mediated inflammatory pathways and regulation of AP-1 activity, resulting in broad anti-inflammatory and cytoprotective effects. It also exhibits epigenetic regulatory properties through inhibition of histone deacetylases, influencing gene expression patterns relevant to cancer progression, neurodegeneration, and metabolic disorders. In vitro studies typically demonstrate activity in the low micromolar range, consistent with its role in modulating redox-sensitive and transcriptional pathways. As a result, L-sulforaphane is extensively employed in mechanistic studies of tumor biology, antioxidant defense, inflammation, and immune responses, as well as in cellular and animal models investigating disease pathogenesis and therapeutic intervention, with experimental concentrations or dosing regimens adjusted according to specific study designs.