Muramyl dipeptide (MDP) is a synthetic immunoreactive peptide, consisting of N-acetyl muramic acid attached to a short amino acid chain of L-Ala-D-isoGln. Muramyl dipeptide is an inducer of bone formation through induction of Runx2. Muramyl dipeptide directly enhances osteoblast differentiation by up-regulating Runx2 gene expression through MAPK pathways. Muramyl dipeptide indirectly attenuates osteoclast differentiation through a decreased RANKL/OPG ratio[1].
MR2938 is a potent AChE inhibitor, with an IC50 of 5.04 μM. MR2938 also suppresses NO production obviously (IC50 = 3.29 μM). MR2938 suppresses the neuroinflammation through blocking MAPK/JNK and NF-κB signaling pathways. MR2938 can be used for Alzheimer’s disease (AD) research[1].
JNK-IN-11 (compound 1) is a potent JNK inhibitor with an IC50 value of 2.2, 21.4, 1.8 µM for JNK1, JNK2, JNK3, respectively. JNK-IN-11 has the potential for the research of alzheimer and parkinson disease[1].
Indirubin-3′-oxime (IDR3O), a synthetic derivative of indirubin, is a potent inhibitor of cyclin-dependent kinases (CDKs) and glycogen synthase kinase 3β (GSK3β). Indirubin-3′-oxime directly inhibits the activity of all three isoforms of JNK (JNK1, JNK2, and JNK3), with IC50s of 0.8 μM, 1.4 μM, and 1.0 μM, respectively. Indirubin-3′-oxime can enhance height growth via activation of Wnt/β-catenin signaling in chondrocytes[1][2][3].
Tomatidine acts as an anti-inflammatory agent by blocking NF-κB and JNK signaling.
SP600125 is a reversible and ATP-competitive JNK inhibitor with IC50s of 40, 40 and 90 nM for JNK1, JNK2 and JNK3, respectively.
BI-78D3 functions as a substrate competitive inhibitor of JNK, inhibit the JNK kinase activity (IC50=280 nM).
D-JNKI-1 is a specific inhibitor of JNK, and strongly interferes with JNK activation.
(E)-Osmundacetone is the isomer of Osmundacetone. Osmundacetone significantly suppresses the phosphorylation of MAPKs, including JNK, ERK, and p38 kinases. Osmundacetone has a neuroprotective effect against oxidative stress[1].
Urolithin B is one of the gut microbial metabolites of ellagitannins, and has anti-inflammatory and antioxidant effects. Urolithin B inhibits NF-κB activity by reducing the phosphorylation and degradation of IκBα, and suppresses the phosphorylation of JNK, ERK, and Akt, and enhances the phosphorylation of AMPK. Urolithin B is also a regulator of skeletal muscle mass[1][2].
Emodic acid (NSC624610) is an anthraquinone compound isolated from A. microcarpus, which can inhibit the proliferation of cancer cells by inhibiting the activity of NF-κB. Emodic acid can also inhibit the phosphorylation of p38, ERK and JNK, the secretion of tumor-promoting cytokines IL-1β and IL-6, and the expression of VEGF and MMP, thereby inhibiting the invasion and migration potential of cancer cells[1].
IQ-1 is a prospective inhibitor of NF-κB/activating protein 1 (AP-1) activity with an IC50 of 2.3±0.41 μM. IQ-1 has binding affinity (Kd values) in the nanomolar range for all three JNKs with Kds of 100 nM, 240 nM, and 360 nM for JNK3, JNK1, and JNK2, respectively.
Sugiol is an abietane diterpenoid, can be isolated from Calocedrus formosana bark. Sugiol has anti-inflammatory activity, could effectively reduce intracellular reactive oxygen species (ROS) production in lipopolysaccharide (LPS)-stimulated macrophages[1].
Esculentoside B (Phytolaccoside B) is a natural product from the roots of Phytolacca acinosa Roxb. Esculentoside B is neurotoxic to zebrafish larvae, and impairs their central nervous system development. Esculentoside B inhibits inflammatory response and has antifungal activity[1][2][3].
AS601245 is a JNK Inhibitor with IC50s of 150, 220, and 70 nM for three JNK human isoforms (hJNK1, hJNK2, and hJNK3), respectively.
JNK-IN-13 (compound 1) is a potent and selective JNK inhibitor with IC50s of 290 nM and 500 nM for JNK3 and JNK2, respectively[1].
Aloisine A (RP107) is a a potent cyclin-dependent kinase (CDK) inhibitor with IC50s of 0.15 μM, 0.12 μM, 0.4 μM, 0.16 μM for CDK1/cyclin B, CDK2/cyclin A, CDK2/cyclin E, CDK5/p35, respectively. Aloisine A ininhibits GSK-3α (IC50=0.5 µM) and GSK-3β (IC50=1.5 µM). Aloisine A stimulates wild-type CFTR and mutated CFTR, with submicromolar affinity by a cAMP-independent mechanism. Aloisine A has the potential for CFTR-related diseases, including cystic fibrosis research[1][2].
Lucidone, an anti-inflammatory agent that can be isolated from the fruit of Lindera erythrocarpa Makino. Lucidone inhibits LPS-induced NO and PGE2 production in RAW 264.7 mouse macrophages. Lucidone also decreases TNF-α secretion, iNOS and COX-2 expression. Lucidone prevents NF-κB translocation and inhibits JNK and p38MAPK signals. Lucidone also has inhibitory activity against Dengue virus (DENV) (EC50=25 μM)[1][2].
YL5084, a covalent JNK inhibitor, exhibits selectivity for JNK2 and JNK3 over JNK1 with IC50s of 70 nM, 84 nM and 2173 nM, respectively. YL5084 exhibits JNK2-independent antiproliferative effects and induces apoptosis in a JNK2-independent manner[1].
AEG3482 is a potent antiapoptotic compound that inhibits Jun kinase (JNK) activity through induced expression of heat shock protein 70 (HSP70). AEG3482 directly binds HSP90, thereby facilitating HSF1-dependent expression of HSP70 and HSP25[1].
Ophiopogonin B induces the autophagy and apoptosis of colon cancer cells by activating JNK/c-Jun signaling pathway. Ophiopogonin B is a saponin compound isolated from Radix Ophiopogonjaponicus[1].
Salicortin, a phenolic glycoside, has been isolated from many plants such as Populus and Salix species. Salicortin inhibits osteoclast differentiation and bone resorption by down-regulating JNK and NF-κB/NFATc1 signaling pathways. Salicortin has anti-amnesic, anti-adipogenic, and immune-modulatory activity[1].
JNK3 inhibitor-2 is a potent and selective JNK3 inhibitor with IC50 values of >100, >100, 0.25 µM for JNK1, JNK2, JNK3, respectively. JNK3 inhibitor-2 shows DDR1 and EGFR (T790M, L858R) inhibition[1].
Esculentoside H (EsH) is a water-soluble saponin isolated and purified from the root extract of perennial plant Phytolacca esculenta[1]. Esculentoside H (EH) has anti-tumor activity, the mechanism is related to the capacity for TNFrelease[2].Esculentoside H (EsH) suppresses colon cancer cell migration through blockage of the JNK1/2 and NF-κB signaling-mediated matrix metalloproteinases-9 (MMP-9) expression[1].
IMM-H007 is a potent TGFβ1 (transforming growth factor β1) antagonist. IMM-H007 has protective effects in cardiovascular diseases via activation of AMPK (AMP-activated protein kinase). IMM-H007 negatively regulates endothelium inflammation through inactivating NF-κB and JNK/AP1 signaling. IMM-H007 inhibits ABCA1 degradation. IMM-H007 resolves hepatic steatosis in HFD-fed hamsters by the regulation of lipid metabolism. IMM-H007 can be used for the research of nonalcoholic fatty liver disease (NAFLD) and inflammatory atherosclerosis[1][2][3].
Actein is a triterpene glycoside isolated from the rhizomes of Cimicifuga foetida. Actein suppresses cell proliferation, induces autophagy and apoptosis through promoting ROS/JNK activation, and blunting AKT pathway in human bladder cancer. Actein has little toxicity in vivo[1][2].
CT1-3 is a potent anticancer agent. CT1-3 induces mitochondria-mediated apoptosis by regulating JNK/Bcl-2/Bax/XIAP pathway. CT1-3 suppresses the epithelial mesenchymal transition (EMT) potential of human cancer cells (HCCs) via regulating the E-cadherin/Snail axis, thus inhibits tumorigenesis. CT1-3 has a strong antitumor effect in mice model and exhibits no significant hepatic and renal toxicity[1].
JIP-1(153-163) (TI-JIP) is a peptide inhibitor of c-JNK, based on residues 153-163 of JNK-interacting protein-1 (JIP-1) (Modifications: Phe-11 = C-terminal amide)[1].
Isodorsmanin A is an anti-inflammatory agent. Isodorsmanin A suppresses the production of inflammatory mediators and proinflammatory cytokines. Isodorsmanin A inhibits the phosphorylation of JNK, MAPK[1].
JNK-IN-8 is a potent JNK inhibitor with IC50s of 4.7 nM, 18.7 nM, and 1 nM for JNK1, JNK2, and JNK3, respectively.