Biological Activity
HG-9-91-01 is a potent and highly selective salt-inducible kinase (SIKs) inhibitor with IC50s of 0.92 nM, 6.6 nM and 9.6 nM for SIK1, SIK2 and SIK3 respectively.
In Vitro
HG-9-91-01 inhibits a number of protein tyrosine kinases that possess a threonine residue at the gatekeeper site, such as Src family members (Src, Lck, and Yes), BTK, and the FGF and Ephrin receptors[1]. HG-9-91-01 demonstrates a strong correlation between the potency of SIK2 inhibition and enhanced IL-10 production. In agreement with these reports, pretreating BMDCs with HG-9-91-01, a recently described inhibitor of SIK1-3, along with several other kinases, results in concentration-dependent potentiation of zymosan-induced IL-10 production with an EC50 ~200 nM and a maximum effect similar to that observed with PGE2[2]. HG-9-91-01 has more than a 100-fold greater potency against SIKs than AMPK (IC50=4.5 μM) in a cell-free assay. HG-9-91-01 treatment dose dependently increased mRNA expression of Pck1 and G6pc and that effect is similar in cells treated with 4 μM HG-9-91-01 or 0.1 μM glucagon. Consistent with this observation, there is also a dose-dependent increase in glucose production following HG-9-91-01 treatment[3].
In Vivo
No in vivo data are provided in the current product source. Contact us for further information.
References & source
Published experimental findings depend on the model and assay conditions. They do not guarantee equivalent performance in every application. For laboratory research use only.
