PKCδ Inhibitor

Go 6983 is a pan-PKC inhibitor against for PKCα, PKCβ, PKCγ, PKCδ and PKCζ with IC₅₀ of 7 nM, 7 nM, 6 nM, 10 nM and 60 nM, respectively.

Midostaurin (PKC412; CGP 41251) is an orally active, reversible multi-targeted protein kinase inhibitor. Midostaurin inhibits PKCα/β/γ, Syk, Flk-1, Akt, PKA, c-Kit, c-Fgr, c-Src, FLT3, PDFRβ and VEGFR1/2 with IC₅₀s ranging from 22-500 nM. Midostaurin also upregulates endothelial nitric oxide synthase (eNOS) gene expression. Midostaurin shows powerful anticancer effects.

Rottlerin, a natural product purified from Mallotus Philippinensis, is a specific PKC inhibitor, with IC₅₀ values for PKCδ of 3-6 μM, PKCα,β,γ of 30-42 μM, PKCε,η,ζ of 80-100 μM. Rottlerin acts as a direct mitochondrial uncoupler, and stimulates autophagy by targeting a signaling cascade upstream of mTORC1. Rottlerin induces apoptosis via caspase 3 activation. Rottlerin inhibits HIV-1 integration and Rabies virus (RABV) infection.

Sotrastaurin (AEB071) is a potent and orally-active pan-PKC inhibitor, with K_is of 0.22 nM, 0.64 nM, 0.95 nM, 1.8 nM, 2.1 nM and 3.2 nM for PKCθ, PKCβ, PKCα, PKCη, PKCδ and PKCε, respectively.

Bisindolylmaleimide III hydrochloride is a protein kinase C (PKC) inhibitor with IC₅₀ values of 0.26, 5.7, and 6 μM against PKCα, PKCδ, and PKCμ, respectively. Bisindolylmaleimide III hydrochloride also exhibits inhibitory activity against other off-targets, with IC₅₀ values of 0.17, 1, and 2 μM against SLK, adenosine kinase (AK), and CDK2, respectively; its K_i for NQO2 is 16.5 μM. Bisindolylmaleimide III hydrochloride selectively binds to activated Rsk1 following EGF stimulation, and serves as a tool for detecting the activation status of intracellular Rsk1 and PKCα, as well as for functional analysis of SLK. Bisindolylmaleimide III hydrochloride can be used in studies of signal transduction and colorectal cancer.

Ruboxistaurin (LY333531) is an orally active, selective PKC beta inhibitor (K_i=2 nM). Ruboxistaurin exhibits ATP dependent competitive inhibition of PKC beta I with an IC₅₀ of 4.7 nM. Ruboxistaurin inhibits PKC beta II with an IC₅₀ of 5.9 nM.

BJE6-106 (B106) is a potent, selective 3^rd generation PKCδ inhibitor with an IC₅₀ of 0.05 μM and targets selectivity over classical PKC isozyme PKCα (IC₅₀=50 μM). BJE6-106 (B106) induces caspase-dependent apoptosis. BJE6-106 (B106) possesses tumor-specific effect.

JW480 is a selective KIAA1363/AADACL1 inhibitor with oral activity, featuring IC₅₀ values of 12 nM against human KIAA1363, 20 nM against mouse KIAA1363. JW480 blocks lipid deacetylase activity to restrain HAG metabolism and lowers retinyl ester hydrolase function in hepatic stellate cells. JW480 reduces MAGE lipid levels and inhibits migration, invasion, survival and tumor growth of prostate cancer cells. JW480 lowers PKCδ phosphorylation, facilitates HAGP accumulation, diminishes platelet aggregation, dense granule secretion and Ca²⁺ flux, delays arterial thrombosis and prolongs tail bleeding time in rats. JW480 can be used for the study of prostate cancer and thrombosis.

VTX-27 is a selective protein kinase C θ (PKC θ) inhibitor, with K_is of 0.08 nM and 16 nM for PKC θ and PKC δ.

Ruboxistaurin (LY333531) hydrochloride is an orally active, selective PKC beta inhibitor (K_i=2 nM). Ruboxistaurin hydrochloride exhibits ATP dependent competitive inhibition of PKC beta I with an IC₅₀ of 4.7 nM. Ruboxistaurin hydrochloride inhibits PKC beta II with an IC₅₀ of 5.9 nM.

Maackiain (DL-Maackiain) is an orally active multi-target inhibitor with anti-tumor activity and neuroprotective effects. Maackiain activates the AMPK, NLRP3 and Nrf2/HO-1 pathways, and inhibits key targets such as NF-κB, mTOR, MAO-B, NFATc1 and PKCδ, thereby precisely regulating processes including apoptosis, autophagy and pyroptosis. Maackiain also effectively inhibits microglial activation, osteoclast formation, and proliferation and invasion of tumor cells, and protects dopaminergic neurons from damage. Maackiain is applicable to the research of various diseases such as Alzheimer's disease, osteoporosis, sepsis and dengue fever。

Delcasertib (KAI-9803) hydrochloride is a potent and selective δ-protein kinase C (δPKC) inhibitor. Delcasertib (KAI-9803) hydrochloride could ameliorate injury associated with ischemia and reperfusion in animal models of acute myocardial infarction (MI).

PKC-theta inhibitor 1 is an orally active and selective ATP-competitive inhibitor of Protein Kinase Cθ (PKCθ), with a K_i value of 6 nM. PKC-theta inhibitor 1 inhibits T-cell-mediated inflammatory responses by suppressing the release of proinflammatory cytokines (IL-2 IC₅₀ = 0.21 μM in anti-CD3/CD28-stimulated PBMCs; IL-17 IC₅₀ = 1 μM in CD3/CD28-stimulated Th17 cells) PKC-theta inhibitor 1 significantly reduces symptoms in mice with ongoing experimental autoimmune encephalomyelitis (EAE). PKC-theta inhibitor 1 can be used for the study of T-cell-mediated inflammatory diseases such as multiple sclerosis.

Bisindolylmaleimide III is a protein kinase C (PKC) inhibitor with IC₅₀ values of 0.26, 5.7, and 6 μM against PKCα, PKCδ, and PKCμ, respectively. Bisindolylmaleimide III also exhibits inhibitory activity against other off-targets, with IC₅₀ values of 0.17, 1, and 2 μM against SLK, adenosine kinase (AK), and CDK2, respectively; its K_i for NQO2 is 16.5 μM. Bisindolylmaleimide III selectively binds to activated Rsk1 following EGF stimulation, and serves as a tool for detecting the activation status of intracellular Rsk1 and PKCα, as well as for functional analysis of SLK. Bisindolylmaleimide III can be used in studies of signal transduction and colorectal cancer.

Ruboxistaurin (LY333531) mesylate is an orally active, selective and ATP competitive PKCβ inhibitor with IC₅₀ values of 4.7 and 5.9 nM for PKCβI and PKCβII, respectively. Ruboxistaurin mesylate can be used for the research of eye disorders, heart failure and diabetes.

Delcasertib (KAI-9803) is a potent and selective δ-protein kinase C (δPKC) inhibitor. Delcasertib (KAI-9803) could ameliorate injury associated with ischemia and reperfusion in animal models of acute myocardial infarction (MI).

PF-04577806 is a potent, selective and ATP competitive PKC inhibitor. PF-04577806 shows potent inhibitory activity towards PKCα, PKCβI, PKCβII, PKCγ, and PKCθ with IC₅₀s of 2.4 nM, 8.1 nM, 6.9 nM, 45.9 nM, and 29.5 nM, respectively. PF-04577806 can reverse retinal vascular leakage in diabetic rats.

AS2521780 is a novel PKCθ selective inhibitor with an IC₅₀ of 0.48 nM.

Balanol (Ophiocordin; Azepinostatin) is a potent and ATP competitive PKC/PKA inhibitor against human PKC isozymes α, β-I, β-II, γ, δ, ε, η (IC₅₀s=4-9 nM) and ζ (IC₅₀=150 nM). Balanol also blocks the phosphorylation of cyclic AMP response element-binding protein (CREB) and myristoylated alanine-rich C kinase substrate (MARCKS). Balanol can be isolated from the fungus Verticillium balanoides.