Kinase experiment:

To evaluate the effects of Ginsenoside Rc on kinase activity, immunoprecipitated TBK1, IKKε, and p38 are incubated in reaction buffer in the presence or absence of Ginsenoside Rc. The reactions are initiated by the addition of Mg-ATP. After a 30 min incubation at 30℃, the reactions are stopped by the addition of sample buffer and the samples are boiled. Kinase activity is assessed by immunoblotting with antibodies against the phospho-forms of IKKε, IRF-3, and ATF-2[2].

Ginsenoside Rc, one of major Ginsenosides from Panax ginseng, enhances GABA receptorA (GABAA)-mediated ion channel currents (IGABA). Ginsenoside Rc inhibits the expression of TNF-α and IL-1β.

Ginsenoside Rc, one of major Ginsenosides from Panax ginseng, enhances γ-aminobutyric acid (GABA) receptorA (GABAA)-mediated ion channel currents. Ginsenoside Rc enhances GABA-mediated ion currents in oocytes expressing the GABAA receptor[1]. Ginsenoside Rc significantly inhibits the expression of macrophage-derived cytokines, such as TNF-α and IL-1β. Ginsenoside Rc also markedly suppresses the activation of TANK-binding kinase 1/IκB kinase ε/interferon regulatory factor-3 and p38/ATF-2 signaling in activated RAW264.7 macrophages, human synovial cells, and HEK293 cells. Ginsenoside Rc exerts its anti-inflammatory actions by suppressing TANK-binding kinase 1/IκB kinase ε/interferon regulatory factor-3 and p38/ATF-2 signaling. Ginsenoside Rc suppresses the nuclear translocation of phospho-ATF-2 and phospho-FRA-1, whereas the translocation of p65 at its peak time points (30 and 60 min) is not decreased by Ginsenoside Rc treatment. Ginsenoside Rc regulates the expression of the proinflammatory cytokine TNF-α, which is produced by macrophages, by suppressing AP-1 activation[2].

References:
[1]. Lee BH, et al. Effects of Ginsenoside Metabolites on GABAA Receptor-Mediated Ion Currents. J Ginseng Res. 2012 Jan;36(1):55-60.
[2]. Yu T, et al. Ginsenoside Rc from Panax ginseng exerts anti-inflammatory activity by targeting TANK-bindingkinase 1/interferon regulatory factor-3 and p38/ATF-2. J Ginseng Res. 2017 Apr;41(2):127-133.