Molecular Formula | C20H19FN4O2S |
Molar Mass | 398.4539 |
Density | 1.402±0.06 g/cm3(Predicted) |
Boling Point | 652.9±55.0 °C(Predicted) |
Solubility | DMSO: ≥ 37 mg/mL |
Appearance | Form solid, color Pale yellow |
pKa | 12.59±0.40(Predicted) |
Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
Stability | Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20° for up to 1 month. |
Physical and Chemical Properties | Bioactive GSK583 is a highly effective and selective RIP2 kinase inhibitor with an IC50 of 5 nM. GSK583 also inhibited TNF-α and IL-6 production, with an IC50 value of about 200 nM in explant culture. |
1mg | 5mg | 10mg | |
---|---|---|---|
1 mM | 2.51 ml | 12.549 ml | 25.097 ml |
5 mM | 0.502 ml | 2.51 ml | 5.019 ml |
10 mM | 0.251 ml | 1.255 ml | 2.51 ml |
5 mM | 0.05 ml | 0.251 ml | 0.502 ml |
Solubility | Soluble in DMSO (up to at least 25 mg/ml). |
Target
Target Value
RIP2
(Cell-free assay) 5 nM
RIP3
(Cell-free assay) 16 nM
in vitro studies
GSK583 has a similar binding affinity for RIP3 kinase to RIP2 (RIP2 FP IC50 = 5 nM; RIP3 FP IC50 = 16 nM). Nevertheless, GSK583 at concentrations up to 10 μM had no inhibitory effect on RIP3-dependent necrotic cell death in cell experiments. GSK583 effectively and concentration-dependently inhibited MDP-stimulated tumor necrotizing TNFα production in primary human monocytes with IC50 = 8 nM. After treatment with 1 μM GSK583, when Toll-like receptor (TLR2, TLR4, TLR7) or cytokine receptor (IL-1R, TNFR) is activated, the pro-inflammatory factor signal is not inhibited, but once NOD1 and NOD2 receptors are activated, the pro-inflammatory factor signal is completely inhibited. Although GSK583 has good kinase selectivity, it can also inhibit hERG channels and Cyp3A4, which will affect its development as a candidate drug.
In vivo studies
GSK583 has low clearance rate, medium distribution volume and oral biological activity in rats and mice. Although GSK583 does not produce a human pharmacodynamic response within an acceptable concentration range, affecting its subsequent development as a drug candidate, its pharmacokinetics in mice and rats make it an effective preclinical in vivo research tool that plays a role in acute inflammatory models.