Verbascoside (Synonyms: Acteoside, NSC 603831)

Cell experiment:

The lymphocytic mouse leukemia L1210 cells (ATCC, CCL 219) are plated sparsely at 104 cells per well in 24-well cluster plates in Dulbecco’s modified Eagle medium containing 10% fetal calf serum, 4 mM glutamine, 100 U/mL penicillin, 100 µg/mL streptomycin sulfate, and Verbascoside (solubilized in DMSO). After a 2-day incubation period at 37°C in a humidified atmosphere (5% CO2 in air), growth is monitored by counting cell numbers in a Coulter-counter. IC50 values are calculated on the basis of the linear regression lines established for each compound tested[1].

Animal experiment:

Rats[2]To induce atopic dermatitis (AD)-like symptoms, 2,4-dinitrochlorobenzene (DNCB) is used. Briefly, the dorsal hair of the mice is removed using an electronic clipper 2 days before DNCB treatment. An application of 200 µL of 1% DNCB (in acetone:olive oil = 4:1) is made to the shaved dorsal skin for sensitization. The repeated challenge is performed on the same site with 0.2% DNCB once every 3 days for about 2 weeks. The mice are divided into 4 groups (n = 6 per group): (1) vehicle-treated controls, (2) DNCB-treated only, (3) 1% Verbascoside (in acetone:olive oil 4:1)-treated only, and (4) DNCB + 1% Verbascoside-treated group[2].

References:

[1]. Herbert JM, et al. Verbascoside isolated from Lantana camara, an inhibitor of protein kinase C. J Nat Prod. 1991 Nov-Dec;54(6):1595-600.
[2]. Li Y, et al. Verbascoside Alleviates Atopic Dermatitis-Like Symptoms in Mice via Its Potent Anti-Inflammatory Effect. Int Arch Allergy Immunol. 2018;175(4):220-230.
[3]. Amin B, et al. The Effect of Verbascoside in Neuropathic Pain Induced by Chronic Constriction Injury in Rats. Phytother Res. 2016 Jan;30(1):128-35.