Metadichol Stimulates Gene Expression Across Mammalian Species: Dose Response Characterization and Implications for Restoring Vitamin C Biosynthesis

Background: The Gulo gene encodes L-gulonolactone oxidase, the terminal enzyme in the vitamin C biosynthesis pathway that is nonfunctional in humans and some other mammals. Metadichol, a nanoemulsion of long-chain alcohols, has demonstrated various biological activities. This study investigated the modulatory effects of Metadichol on Gulo gene expression across multiple mammalian species.Methods: Four mammalian cell lines representing different species were evaluated: rat (L6), mouse (C2C12), bovine (BT), and swine (ST) cells. Cells were treated with Metadichol at concentrations of 1 pg/ml, 100 pg/ml, one ng/ml, and 100 ng/ml for 24 hours. Total RNA was extracted using TRIzol reagent, and quantitative real-time PCR (qPCR) analysis was performed using species-specific Gulo gene primers. Gene expression was normalized to GAPDH and analyzed using the 2^-ΔΔCq method.Results: Metadichol treatment resulted in species-specific and dose-dependent upregulation of Gulo gene expression. Rat cells showed the highest response with 3.34-fold upregulation at 100 pg/ml, while showing downregulation at higher concentrations. Mouse cells demonstrated 2.01-fold upregulation at 100 pg/ml and 1.28-fold at 100 ng/ml. Bovine cells exhibited moderate upregulation of 1.61-fold and 1.21-fold at 100 pg/ml and 100 ng/ml, respectively. Swine cells showed optimal response at the lowest concentration (1 pg/ml) with 1.93-fold upregulation.Conclusions: Metadichol effectively stimulates Gulo gene expression across mammalian species in a dose- and species-dependent manner, with optimal concentrations varying between species. These findings suggest potential therapeutic applications for Metadichol in modulating vitamin C biosynthesis pathways and warrant further investigation into its mechanisms of action and clinical implications.