Dehydrocorydaline

Cell experiment:

Briefly, MCF-7 cells (1×104 cells/well) are seeded in 96-well plates and treated with different concentrations of dehydrocorydaline (0-200 μM) for 24 h. The cell viability is determined. To explore the role of caspase-8 in dehydrocorydaline induced cytotoxicity, a caspase-8 inhibitor Z-IETD-FMK (10 μM) is co-incubated with 200 μM dehydrocorydaline.

Animal experiment:

Briefly, the mice are placed individually in glass beakers and are allowed to acclimate for 30 min before the test. The vehicle or Dehydrocorydaline (3.6, 6 or 10 mg/kg) are injected (10 ml/kg, i.p.) 15 min prior to the formalin injection. Morphine (10 mg/kg) or diclofenac sodium (20 mg/kg) are injected 15 and 30 min, respectively, prior to the formalin injection as positive controls. Then, 25 μL of a 5% formalin solution is injected into the plantar surface of the right hind paw of each mouse. Immediately after the formalin injection, the mice are placed individually in the beakers, and a mirror is placed under the beaker to allow clear observation of the paws of the animals. The time that the animals spent on biting/licking the injected paw is measured with a stopwatch every 5 min and considered as indication of nociception.

References:

[1]. Yoo M, et al. Dehydrocorydaline promotes myogenic differentiation via p38 MAPK activation. Mol Med Rep. 2016 Oct;14(4):3029-36.
[2]. Yin ZY, et al. Antinociceptive effects of dehydrocorydaline in mouse models of inflammatory pain involve the opioid receptor and inflammatory cytokines. Sci Rep. 2016 Jun 7;6:27129
[3]. Xu Z, et al. Dehydrocorydaline inhibits breast cancer cells proliferation by inducing apoptosis in MCF-7 cells. Am J Chin Med. 2012;40(1):177-85.