Gramine (Donaxine) is a natural alkaloid isolated from giant reed[2], acts as an active adiponectin receptor (AdipoR) agonist, with IC50s of 3.2 and 4.2 µM for AdipoR2 and AdipoR1, respectively[1]. Gramine is also a human and mouse β2-Adrenergic receptor (β2-AR) agonist[2]. Gramine (Donaxine) has anti-tumor, anti-viral and anti-inflammatory properties[1].
Gramine is an active adiponectin receptor (AdipoR) agonist, with IC50s of 3.2 and 4.2 µM for AdipoR2 and AdipoR1, respectively[1]. Gramine is a potential β2-AR agonist[2].Gramine (20 µM to 1.2 nM) dose-dependently inhibits the growth of AdipoR1/adipoR2-positive cancer cell lines (MDA-MB-231 and MCF-7 cells), with IC50s of 9.6±0.9 and 0.1±0.1 µM, respectively[1].
References:
[1]. Sun Y, et al. Identification of adiponectin receptor agonist utilizing a fluorescence polarization based high throughput assay. PLoS One. 2013 May 14;8(5):e63354.
[2]. Chikazawa M, et al. Identification of Functional Food Factors as β2-Adrenergic Receptor Agonists and Their Potential Roles in Skeletal Muscle. J Nutr Sci Vitaminol (Tokyo). 2018;64(1):68-74.