Licarin A  (Synonyms: (+)-Licarin A)

Licarin A ((+)-Licarin A), a neolignan, significantly and dose-dependently reduces TNF-α production (IC₅₀=12.6 μM) in dinitrophenyl-human serum albumin (DNP-HSA)-stimulated RBL-2H3 cells. Anti-allergic effects. Licarin A reduces TNF-α and PGD2 production, and COX-2 expression^[1].

Licarin A is found in plants such as Aristolochia taliscana, Machilus thunbergii and Myristica fragrans, which are used as spices and in folk medicines for nervous and digestive disorders. Licarin A also exhibits anti-inflammatory effects^[1].
Licarin A (5-20 μM) reduces TNF-α and prostaglandin D2 (PGD2) secretion via the inhibition of PKCα/βII and p38 MAPK pathways. Licarin A treatment tends to reduce phosphorylated PKCα/βII and p38 MAPK protein levels^[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

326.39

Solid

C₂₀H₂₂O₄

51020-86-1

OC1=CC=C([[email protected]@H]2OC3=C(OC)C=C(/C=C/C)C=C3[[email protected]]2C)C=C1OC

Room temperature in continental US; may vary elsewhere.

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

• [1]. Takuya Matsui, et al. Licarin A Is a Candidate Compound for the Treatment of Immediate Hypersensitivity via Inhibition of Rat Mast Cell Line RBL-2H3 Cells. J Pharm Pharmacol. 2015 Dec;67(12):1723-32.  [Content Brief]