erinacine A

**Erinacine A** is a naturally occurring diterpenoid isolated from the mycelium and fruiting bodies of the medicinal mushroom *Hericium erinaceus* (lion’s mane mushroom)[2][6]. It is best known for its **neuroprotective, neuroregenerative, antidepressant-like, anti-inflammatory, antioxidant, and anti-cancer properties**. Mechanistically, it promotes nerve growth factor (NGF) synthesis and has been shown to activate neurotrophic signaling (BDNF/TrkB/PI3K/Akt/GSK-3β), modulate monoamine neurotransmitter levels (dopamine, serotonin, norepinephrine), inhibit inflammatory mediators (NF-κB, IL-6, TNF-α, iNOS, MAPK), induce antioxidant pathways (Nrf2/HO-1/SOD1), and reduce amyloid-β accumulation associated with neurodegenerative processes[1][3][5][6].

Other names

(3aR,5aR,6S)-3a,5a-dimethyl-1-propan-2-yl-6-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]oxy-2,3,4,5,6,7-hexahydrocyclohepta[e]indene-8-carbaldehydecyathane diterpene(+)-Erinacin A