cyclin-d1

Salidroside is a bioactive phenolic glycoside compound isolated from Rhodiola rosea and is a prolyl endopeptidase inhibitor. Salidroside can alleviate cachexia symptoms in a tumor cachexia mouse model by activating mTOR signaling and protect dopaminergic neurons by enhancing PINK1 Parkin-mediated mitochondrial autophagy. Salidroside can also inhibit the growth of cancer cells by regulating the CDK4-cyclin D1 pathway to block the G1 phase and or regulating the Cdc2-cyclin B1 pathway to block the G2 phase.

Rubone (2'-Hydroxy-2,4,4',5,6'-pentamethoxychalcone), a natural product and a modulator of miR-34a (microRNA-34), upregulates miR-34a expression in a p53-dependent manner, which in turn downregulates the expression of downstream targets Bcl-2, cyclin-D1, CDK6, SIRT1, and FOXP1, thereby inhibiting tumor growth and reversal of hepatocellular carcinoma (HCC) and chemoresistance in prostate cancer.

Flavopiridol hydrochloride (MDL 107826A) is a synthetic N-methylpiperidinyl chlorophenyl flavone compound. As an inhibitor of cyclin-dependent kinase, alvocidib induces cell cycle arrest by preventing phosphorylation of cyclin-dependent kinases (CDKs) and by down-regulating cyclin D1 and D3 expression, resulting in G1 cell cycle arrest and apoptosis. This agent is also a competitive inhibitor of adenosine triphosphate activity.

Fascaplysin is a cyclin D kinase 4 cyclin D1 inhibitor (IC50 = 0.35 μM). Fascaplysin induces caspase mediated crosstalk between autophagy and apoptosis through the inhibition of PI3K AKT mTOR signaling cascade in human leukemia HL-60 cells.

1. Schisandrol B (Besigomsin) may exert neuroprotective effects by attenuating the microglia-mediated neuroinflammatory response via inhibiting the TLR4-mediated NF-κB and MAPKs signaling pathways. 2. Schisandrol B has anti-inflammatory property, potentially result from the inhibition of COX-2, iNOS, IL-6, TNF-α and NO through the down-regulation of RIP2 and NF-κB activation. 3. Schisandrol B induces marked protective effects against hepatic and renal injury induced by CCl(4) exposure through differential regulation of the MAPK signal transduction pathway. 4. Schisandrol B significantly inhibits cell proliferation in a dose-dependent manner, due to cell cycle arrest in the G1 phase with the downregulation of cyclin D1 expression and Retinoblastoma (RB) phosphorylation.

Eurycomalactone is a natural product isolated from Eurycoma longifolia Jack., acts as a potent NF-κB inhibitor( IC50 of 0.5 μM). Eurycomalactone inhibits protein synthesis, depletes cyclin D1, but does not affect TNFα-induced degradation of IκBα or the phosphorylation of IKKα β and IκBα.

Garcinone D shows significant cytotoxicity against the CEM-SS cell line, with IC(50) value of 3.2 microg ml; it exhibits dose-dependent enzyme-based microsomal aromatase inhibitory activity. Garcinone D inhibits p65 activation with IC50 values of 3.2 micr

Mahanine has effects on the activation of the apoptotic pathway in human leukemia U937 cells, causes the mitochondrial membranes to lose their permeability, resulting in caspase-3 activation and apoptosis. Mahanine can reverse an epigenetically silenced g