1. Signaling Pathways
  2. MAPK/ERK Pathway
  3. p38 MAPK

p38 MAPK

The p38 MAPK family consists of highly conserved proline-directed serine-threonine protein kinases that are activated in response to a number many growth factors, cytokines, and chemotactic substances, such as vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), PDGF, TNF, interleukins, lipopolysaccharide (LPS) and formyl-methionyl-leucyl-phenylalanine (fMLP). It is well known that p38 is involved in inflammation, apoptosis, cardiomyocyte hypertrophy and cell differentiation.

The p38 MAPK family is composed of four proteins: p38α (encoded by the gene Mapk14), p38β (Mapk11), p38γ (Mapk12), and p38δ (Mapk13). Their coding genes have a distinct tissue distribution and they appear differentially expressed, being Mapk14 the most highly expressed. p38 MAPKs are substrates for three MAP2K (MKK6, MKK3, and MKK4). The contribution of each of these MAP2K to p38 MAPKs activation depends on the stimulus and the cell type. The MAP3Ks that lead to p38 MAPKs activation are ASK1, DLK1, TAK1, TAO1, TAO2, TPL2, MLK3, MEKK3, MEKK4, and ZAK1.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-B1014R
    Acenocoumarol (Standard)
    Inhibitor
    Acenocoumarol (Standard) is the analytical standard of Acenocoumarol. This product is intended for research and analytical applications. Acenocoumarol is an anticoagulant that functions as a Vitamin K antagonist. Acenocoumarol inhibits MAPK/ERK/JNK signaling pathway, reduces the nuclear translocation of NF-κB p65, activates Akt/GSK3β signaling pathway. Acenocoumarol induces apoptosis in cell A549, arrests cell cycle at S phase.
    Acenocoumarol (Standard)
  • HY-N19401
    Vescalagin
    Inhibitor
    Vescalagin is a hexahydroxyphenol. Vescalagin is isolable from Camu-camu (Myrciaria dubia) and immature wax apple fruits. Vescalagin exhibits inhibitory activity against a variety of enzymes, with a Ki value of 5.87 nM against AChE, 3.89 nM against BChE, 11.75 nM against hCA I, 16.23 nM against hCA II, and 16.08 nM against α-glucosidase. Vescalagin inhibits hCA I, hCA II and α-glucosidase in a non-competitive manner. Vescalagin downregulates JNK/p38 MAPK to protect pancreatic β-cells and improve insulin secretion in methylglyoxal-treated rats. Vescalagin reduces hyperglycemia and hypertriglyceridemia in rats fed a high-fructose diet. Vescalagin possesses anti-inflammatory and antioxidant properties.
    Vescalagin
  • HY-163030
    LasB-IN-1
    Inhibitor
    LasB-IN-1 (compound 5f) is a potent and orally active inhibitor of LasB (IC50 = 8.7 μM). LasB-IN-1 effectively attenuates elastase production and biofilm formation by P. aeruginosa while alleviating the inflammatory response through downregulating MAPK and NF-κB pathways. LasB-IN-1 is potential to be a novel anti-infective candidate against drug-resistant infections.
    LasB-IN-1
  • HY-N0253R
    Hederacoside C (Standard)
    Inhibitor
    Hederacoside C (Standard) is the analytical standard of Hederacoside C. This product is intended for research and analytical applications. Hederacoside C (Kalopanaxsaponin B) is an ingredient that can be obtained mainly from ivy leaves. Hederacoside C mediates inflammation by inhibiting activation of MAPK/NF-κB and its downstream signaling pathway. Hederacoside C has anti-inflammatory and antibacterial activity.
    Hederacoside C (Standard)
  • HY-129440R
    N-(p-Coumaroyl) Serotonin (Standard)
    Inhibitor
    N-(p-Coumaroyl) Serotonin (Standard) is the analytical standard of N-(p-Coumaroyl) Serotonin (HY-129440). This product is intended for research and analytical applications. N-(p-Coumaroyl) Serotonin is an orally active polyphenol found in safflower seeds with potent anti-inflammatory, antioxidant, and antitumor activities. N-(p-Coumaroyl) Serotonin suppresses NF‑κB, TLR4/MyD88 and MAPK signaling, activates NQO1/HO‑1 pathways, and inhibits pro‑inflammatory cytokines, iNOS and COX‑2 and ROS production. N-(p-Coumaroyl) Serotonin induces S‑phase arrest and apoptosis in glioblastoma cells, reduces atherosclerotic lesions, and alleviates renal and vascular injuries. N-(p-Coumaroyl) Serotonin acts as a vasodilator, regulates calcium dynamics. N-(p-Coumaroyl) Serotonin can be used for the research of neurodegenerative diseases, atherosclerosis, glioblastoma, and acute renal failure.
    N-(p-Coumaroyl) Serotonin (Standard)
  • HY-10405S
    Pamapimod-d4
    Inhibitor
    Pamapimod-d4 (Ro4402257-d4) is the deuterium labeled Pamapimod. Pamapimod (Ro4402257) is a potent, selective and orally active p38 MAPK inhibitor with IC50s of 14 nM and 480 nM and Kis of 1.3 nM and 120 nM for p38α and p38β, respectively. Pamapimod has no activity against p38δ or p38γ isoforms. Pamapimod has the potential for rheumatoid arthritis and other autoimmune diseases treatment.
    Pamapimod-d<sub>4</sub>
  • HY-N1500R
    Pulegone (Standard)
    Inhibitor
    Pulegone (Standard) is the analytical standard of Pulegone (HY-N1500). This product is intended for research and analytical applications. Pulegone is a monoterpene ketone compound widely present in the essential oils of many plants. Pulegone can also be used as a bird repellent. Pulegone has multiple activities such as anti-inflammatory, antibacterial, antifungal, and anti-hyperalgesic effects. Pulegone is particularly effective against bacteria of the Salmonella species.
    Pulegone (Standard)
  • HY-103566R
    LY456236 (Standard)
    Inhibitor
    LY456236 (Standard) is the analytical standard of LY456236 (HY-103566). This product is intended for research and analytical applications. LY456236 is a selective, non-competitive and orally active antagonist of glutamate receptor 1 (mGlu1), which can inhibit phosphatidylinositol hydrolysis with an IC50 of 0.145 μM. LY456236 can also inhibit EGFR, with an IC50 of 0.918 μM. LY456236 has anticonvulsant effects and blocks cell proliferation by inhibiting the MAPK pathway, reversing the anti-apoptotic effect of DHPG (HY-12598A). LY456236 can be used in epilepsy research.
    LY456236 (Standard)
  • HY-18909
    Multi-kinase-IN-11
    Inhibitor
    Multi-kinase-IN-11 (Compound 1a) is a DFG-out conformation-targeted multi-kinase inhibitor, including SRC, LCK, ABL, PYK2, CSK, HCK, P38 and C-KIT. Multi-kinase-IN-11 serves as a scaffold for the preparation of fluorescently labeled binding probes and affinity matrices.
    Multi-kinase-IN-11
  • HY-N4189
    Isocucurbitacin B
    Inhibitor 98.98%
    Isocucurbitacin B is a natural terpenoid compound found in Pedicellus Melo. Isocucurbitacin B can inhibit the PI3K/AKT, MAPK, and STAT3 signaling pathways and downregulate CAV1 expression. Isocucurbitacin B can inhbit cancer cell proliferation, migration and invision. Isocucurbitacin B can induce apoptosis and cause G2/M phase arrest. Isocucurbitacin B can decrease intracellular cholesterol and PH levels and increase intracellular calcium levels. Isocucurbitacin B can be used for the research of cancer, such as glioma[1][2].

    Isocucurbitacin B
  • HY-W715812
    Bromuconazole
    Inhibitor
    Bromuconazole is a triazole fungicide with oral efficacy and blood-brain barrier permeability. Bromuconazole protects crops from various fungal contaminations. Bromuconazole exhibits cytotoxicity against a variety of cancer cells, induces G0/G1 cell cycle arrest and inhibits DNA synthesis in cancer cells, and triggers cytoskeletal structural disorder, genotoxic damage, apoptotic (apoptosis) cell death, and mitochondrial membrane depolarization. Bromuconazole activates caspase-3, induces excessive production of ROS, p53 and Bax, lipid peroxidation, increased activities of SOD and CAT, and downregulates Bcl-2. By upregulating p-ERK1/2 and p-JNK, Bromuconazole disrupts the MAPK signaling pathway, impairs the cellular stress response of human trophoblast cells and endometrial cells, and damages the implantation process. Bromuconazole is applicable to research related to glioma, colon cancer, reproductive injury (implantation dysfunction), and cardiac dysfunction.
    Bromuconazole
  • HY-18306R
    SB 242235 (Standard)
    Inhibitor
    SB 242235 (Standard) is the analytical standard of SB 242235. This product is intended for research and analytical applications. SB-242235 is a potent and selective p38 MAP kinase inhibitor, with an IC50 of 1.0 μM in primary human chondrocytes.
    SB 242235 (Standard)
  • HY-183531
    p38 MAP Kinase-IN-4
    Inhibitor
    p38 MAP Kinase-IN-4 is a p38α MAPK inhibitor with an IC50 of 40.5 nM. p38 MAP Kinase-IN-4 is applicable to inflammation-related research.
    p38 MAP Kinase-IN-4
  • HY-113402B
    Gamma-glutamylcysteine ammonium
    Inhibitor
    Gamma-glutamylcysteine ammonium (γ-Glu-Cys ammonium) is an orally active, blood-brain barrier permeable dipeptide. Gamma-glutamylcysteine ammonium activates AMPK, SIRT1, IL-4/STAT6, AC/cAMP/PI3K, IGF-1R/IRS1/PI3K, and Nrf2 signaling pathways; it inhibits NF-κB, JAK1/STAT1/3, MAPKs, cadmium-induced p38 MAPK, JNK, and PI3K/Akt signaling pathways. Gamma-glutamylcysteine ammonium regulates macrophage polarization, modulates the trafficking of CD36 and GLUT4, induces glutathione synthesis, improves metabolic dysfunction, reduces lipid deposition, ameliorates glucose homeostasis, inhibits apoptosis (Apoptosis), stabilizes mitochondria, suppresses lipid peroxidation, iron accumulation and ferroptosis (Ferroptosis), reduces ds-HMGB1 levels, reverses mechanical hyperalgesia, and alleviates hepatic lipid droplet formation. Gamma-glutamylcysteine ammonium is applicable to research related to inflammatory bowel disease, type 2 diabetes, cadmium-induced neurotoxicity, Alzheimer's disease, cerebral ischemia/reperfusion injury, neuropathy, and alcoholic liver disease.
    Gamma-glutamylcysteine ammonium
  • HY-12511R
    SKF-86002 (Standard)
    Inhibitor
    SKF-86002 (Standard) is the analytical standard of SKF-86002. This product is intended for research and analytical applications. SKF-86002 is an orally active p38 MAPK inhibitor, with anti-inflammatory, anti-arthritic and analgesic activities. SKF-86002 inhibits lipopolysaccharide (LPS)-stimulate human monocyte IL-1 and TNF-α production (IC50 = 1 μM). SKF-86002 inhibits lipoxygenase- and cyclooxygenase-mediated metabolism of arachidonic acid.
    SKF-86002 (Standard)
  • HY-N2179R
    Hypaphorine (Standard)
    Inhibitor
    Hypaphorine is an indole found in Caragana korshinskii. Hypaphorine has neurological and glucose-lowering effects. Hypaphorine prevents Lipopolysaccharides (LPS) (HY-D1056)-mediated acute lung injury (ALI) and proinflammatory response via inactivating the p38/JNK signaling pathway by upregulating DUSP1.
    Hypaphorine (Standard)
  • HY-179252
    PMK1-IN-1
    Inhibitor
    PMK1-IN-1 (compound H17) is a potent PMK1 inhibitor. PMK1-IN-1 shows superior inhibitory effects against M. oryzae by targeting the pathogenicity MAPK MoPMk1, with an IC50 of 0.42 μM. PMK1-IN-1 exhibits effects in vivo similar to those of Carbendazim (HY-13582). PMK1-IN-1 can be used for rice blast disease research.
    PMK1-IN-1
  • HY-15505R
    RWJ-67657 (Standard)
    Inhibitor
    RWJ-67657 (Standard) is the analytical standard of RWJ-67657. This product is intended for research and analytical applications. RWJ-67657 (JNJ 3026582) is an orally active and selective p38α and p38β MAPK inhibitor with IC50s of 1 and 11 μM, respectively. RWJ-67657 displays no activity at p38γ and p38δ, and exhibits cardio protective effect. Anti-inflammatory and anti-tumor activity.
    RWJ-67657 (Standard)
  • HY-176228
    WEIZ-WX-04-008
    Inhibitor
    WEIZ-WX-04-008 (Compound 1) is a covalent Lysine-targeting MKK7 inhibitor with IC50 of 738 nM.
    WEIZ-WX-04-008
  • HY-183530
    p38 MAPK-IN-11
    Inhibitor
    p38 MAPK-IN-11 is a CSBP (p38 MAPK) kinase inhibitor with IC50 values of 0.15 μM (binding activity) and 0.21 μM (inhibitory activity). p38 MAPK-IN-11 shows weak inhibitory activity against PKCα kinase, with an IC50 of 7.6 μM. p38 MAPK-IN-11 inhibits the production of IL-1. p38 MAPK-IN-11 also acts as a β-lactam antibiotic potentiator, but has no antibacterial activity itself.
    p38 MAPK-IN-11
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