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-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-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-171275
    p38 MAP Kinase-IN-1
    Inhibitor
    p38 MAP Kinase-IN-1 (Compound 4) is the inhibitor for p38, and can be used for inflammation and auto-immune responses related research.
    p38 MAP Kinase-IN-1
  • HY-119420
    Acetoxycycloheximide
    Activator
    Acetoxycycloheximide is an antibiotic with antitumor activity. Acetoxycycloheximide a protein synthesis inhibitor. Acetoxycycloheximide significantly induces activation of procaspase-3 and subsequent apoptosis mediated by the Cytochrome c from mitochondria via activation of JNK pathway. Acetoxycycloheximide triggers the downregulation of cell surface TNF-R1 via the activation of ERK and p38 MAPK, thereby preventing activation of the NF-κB signaling pathway by TNF-α. Acetoxycycloheximide is much more toxic to female rats than to males. Acetoxycycloheximide can be used for inflammatory and immune diseases and cancers research.
    Acetoxycycloheximide
  • HY-164530
    SKLB646
    Inhibitor
    SKLB646 is an orally active multi-target kinase inhibitor. SKLB646 shows significant inhibitory effects on SRC and VEGFR2 with IC50 values ??of 0.002 μmol/L and 0.012 μmol/L, respectively. SKLB646 also shows significant inhibitory effects on B-Raf and C-Raf with IC50 values ??of 0.022 μmol/L and 0.019 μmol/L, respectively. SKLB646 inhibits the activation of the SRC signaling pathway and blocks the MAPK signaling pathway by inhibiting Raf kinase. In addition, SKLB646 can inhibit the proliferation, migration and invasion of human umbilical vein endothelial cells (HUVEC) to inhibit tumor-induced angiopoietic formation. SKLB646 shows significant anti-proliferative and anti-survival activities against triple-negative breast cancer (TNBC) cell lines.
    SKLB646
  • HY-N2375R
    L-Quebrachitol (Standard)
    Activator
    L-Quebrachitol is a methoxy analog of inositol that can be isolated from plants. L-Quebrachitol has free-radical scavenging, gastroprotection, anti-platelet aggregation and anti-diabetic activity. L-Quebrachitol promotes osteoblastogenesis by uppregulation of BMP-2, runt-related transcription factor-2 (Runx2), MAPK (ERK, JNK, p38α), and Wnt/β-catenin signaling pathway.
    L-Quebrachitol (Standard)
  • HY-W654121
    p-Cresol sulfate-d4 potassium
    Activator
    p-Cresol sulfate-d4 (potassium) is deuterium labeled p-Cresyl sulfate (potassium). p-Cresyl sulfate potassium is a uremic toxin that binds to a prototype protein. p-Cresyl sulfate potassium activates the JNK and p38 MAPK signaling pathways. p-Cresyl sulfate potassium has pro-inflammatory activity.
    p-Cresol sulfate-d<sub>4</sub> potassium
  • HY-N2118R
    Bilobetin (Standard)
    Bilobetin (Standard) is the analytical standard of Bilobetin. This product is intended for research and analytical applications. Bilobetin, an active component of Ginkgo biloba, can reduce blood lipids and improve the effects of insulin. Bilobetin ameliorated insulin resistance, increased the hepatic uptake and oxidation of lipids, reduced very-low-density lipoprotein triglyceride secretion and blood triglyceride levels, enhanced the expression and activity of enzymes involved in β-oxidation and attenuated the accumulation of triglycerides and their metabolites in tissues. Bilobetin also increased the phosphorylation, nuclear translocation and activity of PPARα accompanied by elevated cAMP level and PKA activity.
    Bilobetin (Standard)
  • HY-137135
    Cantharidic acid
    Activator
    Cantharidic acid is a selective inhibitor for protein phosphatase 2 (PP2A) and protein phosphatase 1 (PP1). Cantharidic acid inhibits cell viability and arrest cell cycle at sub G1 phase, induces apoptosis in cells NPC-39 and HONE-1 through the upregulation of ERK1/2, p38, and JNK1/2 pathway.
    Cantharidic acid
  • HY-W004486R
    Gallic aldehyde (Standard)
    Inhibitor
    Gallic aldehyde (Standard) is an analytical standard of Gallic aldehyde (HY-W004486). This product is intended for research and analytical applications. Gallic aldehyde (3,4,5-Trihydroxybenzaldehyde) is a phenolic aldehyde. Gallic aldehyde can be isolated from Geum japonicum. Gallic aldehyde inhibits the gelatinolytic activity and expression of MMP-9. Gallic aldehyde also inhibits ERK1/2, p38, and JNK. Gallic aldehyde has potent anti-HSV-1 and antioxidant activities. Gallic aldehyde also exhibits antibacterial activity against Oenococcus oeni VF.
    Gallic aldehyde (Standard)
  • HY-N2180R
    (+)-Eudesmin (Standard)
    Activator
    Pinoresinol dimethyl ether (Standard) is the analytical standard of Pinoresinol dimethyl ether (HY-N2180). This product is intended for research and analytical applications. Pinoresinol dimethyl ether ((+)-Eudesmin) is a non-phenolic furanoid lignin. Pinoresinol dimethyl ether can be isolated from Magnolia biondii. Pinoresinol dimethyl ether activates MAPK, PKC, and PKA upstream pathways and inhibits NO levels. Pinoresinol dimethyl ether has neuroprotective activity.
    (+)-Eudesmin (Standard)
  • HY-B1204S1
    Histamine-d4
    Activator
    Histamine-d4 (Ergamine-d4) is deuterium labeled Histamine (HY-B1204). Histamine is the agonist for histamine receptor and a vasodilator. Histamine is an organic nitrogen compound that participates in local immune responses, regulates intestinal physiological functions, and acts as a neurotransmitter. Histamine affects p38 MAPK/Akt signaling pathway, exhibits antitumor, antioxidant and anti-inflammatory activities. Histamine can be used in the research of acute myeloid leukemia, malignant melanoma, and renal cell carcinoma.
    Histamine-d<sub>4</sub>
  • HY-N0721R
    Neoandrographolide (Standard)
    Inhibitor
    Neoandrographolide (Standard) is the analytical standard of Neoandrographolide. This product is intended for research and analytical applications. Neoandrographolide is a diterpenoid compound isolated from Andrographis paniculata. Neoandrographolide inhibits osteoclasts differentiation and bone resorption through inhibition of MAPK/NF-κB/PI3K/AKT/GSK3β/PPAR/CAMK signaling pathway. Neoandrographolide inhibits apoptosis in rat embryonic ventricular cardiomyocytes. Neoandrographolide inhibits iNOS and the generation of ROS, activates eNOS, exhibiting anti-inflammatory and hypolipidemic activity.
    Neoandrographolide (Standard)
  • HY-169685
    p38 MAPK-IN-6
    Inhibitor
    p38 MAPK-IN-6 (compound c47) is a p38 MAPK inhibitor. p38 MAPK-IN-6 shows 14% inhibition at 10 μM.
    p38 MAPK-IN-6
  • HY-100278
    AKP-001
    Inhibitor
    AKP-001 is an inhibitor of p38 mitogen-activated protein kinase (p38 MAPK). AKP-001 can inhibit the production of inflammatory cytokines and can be used for research in rheumatoid arthritis and inflammatory bowel disease.
    AKP-001
  • HY-108635R
    C16-PAF (Standard)
    Activator
    C16-PAF (Standard) is the analytical standard of C16-PAF. This product is intended for research and analytical applications. C16-PAF (PAF (C16)), a phospholipid mediator, is a platelet-activating factor and ligand for PAF G-protein-coupled receptor (PAFR). C16-PAF exhibits anti-apoptotic effect and inhibits caspase-dependent death by activating the PAFR. C16-PAF is a potent MAPK and MEK/ERK activator. C16-PAF induces increased vascular permeability.
    C16-PAF (Standard)
  • HY-10261BR
    (E/Z)-Afatinib (Standard)
    Inhibitor
    (E/Z)-Afatinib (Standard) is the analytical standard of (E/Z)-Afatinib. This product is intended for research and analytical applications. (E/Z)-Afatinib ((E/Z)-BIBW 2992) is the mixture of (E)-Afatinib and (Z)-Afatinib. Afatinib (HY-10261) is an irreversible inhibitor of EGFR, by irreversibly binding to their ATP binding site to block activation of EGFR, HER2, HER4, and EGFRvIII. Afatinib used in co-administration with Temozolomide (HY-17364), potently targeting to EGFRvIII-cMet signaling in glioblastoma cells.
    (E/Z)-Afatinib (Standard)
  • HY-10256R
    Adezmapimod (Standard)
    Inhibitor
    Adezmapimod (Standard) is the analytical standard of Adezmapimod. This product is intended for research and analytical applications. Adezmapimod (SB 203580) is a selective and ATP-competitive p38 MAPK inhibitor with IC50s of 50 nM and 500 nM for SAPK2a/p38 and SAPK2b/p38β2, respectively. Adezmapimod inhibits LCK, GSK3β and PKBα with IC50s of 100-500-fold higher than that for SAPK2a/p38. Adezmapimod can inhibit p38 MAPK and lead to the inhibition of downstream HSP27 phosphorylation. Adezmapimod does not disrupt JNK activity and is an autophagy and mitophagy activator.
    Adezmapimod (Standard)
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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