[D-Arg1,D-Phe5,D-Trp7,9,Leu11]-Substance P, a Substance P derivative, is a biased agonist toward neuropeptide and chemokine receptors. [D-Arg1,D-Phe5,D-Trp7,9,Leu11]-Substance P activates G12. [D-Arg1,D-Phe5,D-Trp7,9,Leu11]-Substance P binds to IL-8 and GRP receptors. [D-Arg1,D-Phe5,D-Trp7,9,Leu11]-Substance P inhibits ERK-2 activation, activates JNK activity. [D-Arg1,D-Phe5,D-Trp7,9,Leu11]-Substance P stimulates an increase in neutrophil migration and Ca2+ mobilization. [D-Arg1,D-Phe5,D-Trp7,9,Leu11]-Substance P is also a bombesin antagonist, and inhibits the growth of small cell lung cancer[1][2][3]
TCS JNK 5a is a potent JNK3 inhibitor with a pIC50 of 6.7. TCS JNK 5a also inhibits JNK2 with a pIC50 of 6.5.
(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].
SU3327 is a potent, selective and substrate-competitive JNK inhibitor with an IC50 of 0.7 μM. SU3327 also inhibits protein-protein interactions between JNK and JNK Interacting Protein (JIP) with an IC50 of 239 nM. SU3327 shows less active against p38α and Akt kinase[1][2].
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].
Isovitexin is a flavonoid isolated from rice hulls of Oryza sativa, possesses anti-inflammatory and anti-oxidant activities; Isovitexin acts like a JNK1/2 inhibitor and inhibits the activation of NF-κB.
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.
Bentamapimod (AS 602801) is an ATP-competitive JNK inhibitor with IC50 of 80 nM, 90 nM, and 230 nM for JNK1, JNK2, and JNK3, respectively.
TOPK-p38/JNK-IN-1 (Compound B12) is an orally active TOPK-p38/JNK signaling pathway inhibitor with the IC50 value of 2.14 µM for NO production. TOPK-p38/JNK-IN-1 shows anti-inflammatory activities. TOPK-p38/JNK-IN-1 also inhibits phosphorylate downstream related proteins and avoids degradation of TOPK[1].
LL-Z1640-4 is a potent p38/JNK signaling inhibitor. LL-Z1640-4 significantly diminishes p38 and JNK activation in HCC cells transfected with MLK4 siRNA. LL-Z1640-4 markedly attenuates ROS production induced by MLK4 knockdown. LL-Z1640-4 significantly reduces the apoptotic cells in HCC cells transfected with siMLK4[1][2].
DB07268 is a potent and selective JNK1 inhibitor with an IC50 value of 9 nM.
Novel antitumor agent, inducing PKR-mediated apoptosis and synergizing with IFN
Polyphyllin I is a bioactive constituent extracted from Paris polyphylla, has strong anti-tumor activity. Polyphyllin I is an activator of the JNK signaling pathway and is an inhibitor of PDK1/Akt/mTOR signaling. Polyphyllin I induces autophagy, G2/M phase arrest and apoptosis[1][2][3].
8-Hydroxyefavirenz (8-OH-EFV) is a primary metabolite of Efavirenz (HY-10572). 8-Hydroxyefavirenz induces apoptosis via a JNK- and BimEL-dependent mechanism in primary human hepatocytes. 8-Hydroxyefavirenz can be used in research of cancer[1].
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].
JNK3 inhibitor-4 is a potent inhibitor of JNK3 (IC50=1.0 nM) based on 2-aryl-1-pyrimidinyl-1H-imidazole-5-yl acetonitrile. JNK3 inhibitor-4 shows excellent selectivity over other protein kinases including isoforms JNK1 (IC50=143.9 nM) and JNK2 (IC50=298.2 nM)[1]. JNK3 inhibitor-4 has neuroprotective effect and predicated blood-brain barrier permeability[1].
Guggulsterone is a plant sterol derived from the gum resin of the tree Commiphora wightii. Guggulsterone inhibits the growth of a wide variety of tumor cells and induces apoptosis through down regulation of antiapoptotic gene products (IAP1, xIAP, Bfl-1/A1, Bcl-2, cFLIP and survivin), modulation of cell cycle proteins (cyclin D1 and c-Myc), activation of caspases and JNK, inhibition of Akt[1]. Guggulsterone, a farnesoid X receptor (FXR) antagonist, decreases CDCA-induced FXR activation with IC50s of 17 and 15 μM for Z- and E-Guggulsterone, respectively[2].
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].
MK2-IN-5 is a Mk2 pseudosubstrate (Ki= 8 μM). MK2-IN-5 targets the protein interaction domain in the MAPK pathway. MK2-IN-5 inhibits HSP25 and HSP27 phosphorylation[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].
OVA-E1 peptide TFA, is an antagonist variant of SIINFEKL [OVA (257-264). OVA-E1 peptide, activates the p38 and JNK cascades similarly in mutant and wild-type thymocytes[1].
Ginsenoside Re is an extract from Panax notoginseng. Ginsenoside Re decreases the β-amyloid protein (Aβ). Ginsenoside Re plays a role in antiinflammation through inhibition of JNK and NF-κB.
Sesaminol, isolated from Justicia orbiculata, has antioxidative activity, Sesaminol inhibits lipid peroxidation and shows neuroprotection effect. Sesaminol potently inhibits MAPK cascades by preventing phosphorylation of JNK, p38 MAPKs, and caspase-3 but not ERK-MAPK expression[1][2][3][4].
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].