Neurotrophic isoindolinones from the fruiting bodies of Hericium erinaceus

Bioorg Med Chem Lett. 2021 Jan 1;31:127714. doi: 10.1016/j.bmcl.2020.127714. Epub 2020 Nov 25.

ABSTRACT

Four compounds, hericerin (1), isohericerinol A (2), N-de-phenylethyl isohericerin (3) and corallocin A (4) were isolated from the fruiting bodies of Hericium erinaceus, a lion’s mane mushroom (Hericiaceae). Among them, isohericerinol A (2) was newly reported in nature. Further investigation of the neurotrophic effect of isolated compounds demonstrated that isohericerinol A (2) strongly increased the nerve growth factor (NGF) production in C6 glioma cells followed by corallocin A (4) and hericerin (1). Increased NGF production by these compounds promoted the neurite outgrowth in N2a neuronal cells. Western blot analysis also showed the increased protein expression of NGF, brain-derived neurotrophic factor (BDNF) and synaptophysin (SYP) in C6-N2a cells. Taken together, our present study characterized the neurotrophic constituents of H. erinaceus, which may support the potential use of memory improvement.

PMID:33246107 | DOI:10.1016/j.bmcl.2020.127714