Magnoflorine

Magnoflorine is an alkaloid and a major constituent of S. acutum that has diverse biological activities.^1,2,3,4 It reduces hemolysis induced by lysophosphatidylcholine (LPC), but not NaCl, in a rat erythrocyte suspension when used at concentrations ranging from 0.01 to 10 μM.¹ Magnoflorine (10 μM) induces intracellular chloride influx in neuroblastoma cells, an effect that is reversed by the GABA_A receptor antagonist bicuculline (Item No. 11727).² It reduces TNF-α-induced NF-κB expression as well as production of IL-6 and IL-8 in BEAS-2B cells.³ In vivo, magnoflorine (20 mg/kg, i.p.) improves short- and long-term memory acquisition in a passive avoidance test in a mouse model of scopolamine-induced memory impairment.⁴

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1. Sakumoto, H., Yokota, Y., Ishibashi, G., et al. Sinomenine and magnoflorine, major constituents of Sinomeni caulis et rhizoma, show potent protective effects against membrane damage induced by lysophosphatidylcholine in rat erythrocytes. J. Nat. Med. 69(3), 441-448 (2015).

2. de la Peña, J.B.I., Lee, H.L., Yoon, S.Y., et al. The involvement of magnoflorine in the sedative and anxiolytic effects of Sinomeni Caulis et Rhizoma in mice. J. Nat. Med. 67(4), 814-821 (2013).

3. Sun, D., Zhou, M., Ying, X., et al. Identification of nuclear factor-κB inhibitors in the folk herb Rhizoma Menispermi via bioactivity-based ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry analysis. BMC Complement. Altern. Med. 14, 356 (2014).

4. Kukula-Koch, W., Kruk-Słomka, M., Stępnik, K., et al. The evaluation of pro-cognitive and antiamnestic properties of berberine and magnoflorine isolated from barberry species by centrifugal partition chromatography (CPC), in relation to QSAR modelling. Int. J. Mol. Sci. 18(12), E2511 (2017).