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

p38 MAPK

p38 MAPK

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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.

p38 MAPK Isoform Specific Products:

p38 MAPK Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N12466
    3′-O-Demethyl-4′-N-demethyl-4′-N-acetyl-4′-epi-staurosporine
    		Inhibitor
    3′-O-Demethyl-4′-N-demethyl-4′-N-acetyl-4′-epi-staurosporine (Compound 7) is an inhibitor of protein kinases, with IC50s of 0.092, 0.26, 0.77 μM for PKC-α, ROCK, ASK1. 3′-O-Demethyl-4′-N-demethyl-4′-N-acetyl-4′-epi-staurosporine shows potent cytotoxicity against PC-3 cancer cells with an IC50 value of 0.16 μM.
    3′-O-Demethyl-4′-N-demethyl-4′-N-acetyl-4′-epi-staurosporine
  • HY-N2693
    6,8-Diprenylorobol
    		Inhibitor
    6,8-Diprenylorobol, a prenylated isoflavone, is a nature product that could be isolated from the leaves of Cudrania tricuspidata. 6,8-Diprenylorobol antiproliferative effect and induces apoptosis through activation of p53 and generation of ROS.
    6,8-Diprenylorobol
  • HY-134000
    Emodic acid
    		Inhibitor
    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.
    Emodic acid
  • HY-P10072
    MK2-IN-5
    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.
    MK2-IN-5
  • HY-N10009
    Cudraflavone B
    		Activator
    Cudraflavone B is a prenylated flavonoid with anti-inflammatory and anti-tumor properties. Cudraflavone B is also a dual inhibitor of COX-1 and COX-2. Cudraflavone B blocks the translocation of nuclear factor κB (NF-κB) from the cytoplasm to the nucleus in macrophages. Thus, Cudraflavone B inhibits tumor necrosis factor α (TNFα) gene expression and secretion. Cudraflavone B also triggers the mitochondrial apoptotic pathway, activates NF-κB, the MAPK p38, and ERK, and induced the expression of SIRT1. Thus Cudraflavone B inhibits the growth of human oral squamous cell carcinoma cells.
    Cudraflavone B
  • HY-149496
    Akt/NF-κB/MAPK-IN-1
    		Inhibitor
    Akt/NF-κB/MAPK-IN-1 (compound 2m) is a potent and orally active inhibitor against NO (IC50=7.70 μM) with no significant toxicity. Akt/NF-κB/MAPK-IN-1 shows anti-inflammatory activity by inhibiting Akt/NF-κB and MAPK signaling pathways.
    Akt/NF-κB/MAPK-IN-1
  • HY-W166297
    Esculin sesquihydrate
    		Inhibitor 98.80%
    Esculin sesquihydrate, a fluorescent coumarin glucoside, is an active ingredient of ash bark. Esculin sesquihydrate ameliorates cognitive impairment in experimental diabetic nephropathy (DN), and exerts anti?oxidative stress and anti?inflammatory effects, via the MAPK signaling pathway.
    Esculin sesquihydrate
  • HY-14412
    p38α inhibitor 4
    		p53 Inhibitor
    p38α inhibitor 4 (compound 10) is a selective and allosteric p38α inhibitor with an IC50 value of 1.2 μM. p38α inhibitor 4 exhibits no activity against p38β, p38γ, and p38δ.
    p38α inhibitor 4
  • HY-139844
    Anti-inflammatory agent 7
    		Inhibitor
    Anti-inflammatory agent 7 inhibits proinflammatory cytokines by blocking the NF-κB/MAPK signaling pathway in LPS-treated RAW 264.7 cells as well as mice.
    Anti-inflammatory agent 7
  • HY-171290
    Casein kinase 1δ-IN-31
    		Inhibitor
    Casein kinase 1δ-IN-31 (Compound 16) is the inhibitor for casein kinase (CK) that inhibits CK1α, CK1δ, and p38α with IC50s of 196, 17, and 18 nM, respectively. Casein kinase 1δ-IN-31 inhibits Double Homeobox 4 (DUX4) with IC50 of 1200 nM.
    Casein kinase 1δ-IN-31
  • HY-A0012R
    Darifenacin (hydrobromide) (Standard)
    		Inhibitor
    Darifenacin (hydrobromide) (Standard) is the analytical standard of Darifenacin (hydrobromide). This product is intended for research and analytical applications. Darifenacin (hydrobromide) is a selective and orally active M3 muscarinic receptor (M3R) antagonist with a pKi of 8.9. Darifenacin (hydrobromide) binds >20-fold more specifically to M3R than to other muscarinic receptors. Darifenacin (hydrobromide) can be used in the study of urinary incontinence and other symptoms of overactive bladder. Darifenacin (hydrobromide) inhibits tumor growth in colorectal cancer cells and has anti-tumor effects.
    Darifenacin (hydrobromide) (Standard)
  • HY-171300
    p38α inhibitor 8
    		Inhibitor
    p38α inhibitor 8 (Compound 1) exhibits inhibitory activity against p38α MAPK and CK1δ with IC50 of 0.21 µM and 0.202 µM[1]>.
    p38α inhibitor 8
  • HY-RS08100
    Mapk11 Rat Pre-designed siRNA Set A
    		Inhibitor

    Mapk11 Rat Pre-designed siRNA Set A contains three designed siRNAs for Mapk11 gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Mapk11 Rat Pre-designed siRNA Set A
    Mapk11 Rat Pre-designed siRNA Set A
  • HY-120225
    NJK14047
    		Inhibitor
    NJK14047 inhibits p38 MAPK and the differentation of naive T-cells to Th1 and Th17 cells. NJK14047 ameliorates the collage-induced rheumatoid arthritis and Imiquimod (HY-B0180)-induced psoriasis in mice.
    NJK14047
  • HY-RS08101
    MAPK12 Human Pre-designed siRNA Set A
    		Inhibitor

    MAPK12 Human Pre-designed siRNA Set A contains three designed siRNAs for MAPK12 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
    MAPK12 Human Pre-designed siRNA Set A
    MAPK12 Human Pre-designed siRNA Set A
  • HY-162170
    Anti-inflammatory agent 72
    		Inhibitor
    Anti-inflammatory agent 72 (compound 5) is a novel resveratrol derivative hybrid with benzoylhydrazine. Anti-inflammatory agent 72 shows anti-inflammatory and antioxidant activities by activating Nrf2 and inhibiting NF-κB p65/iNOS and MAPKs signaling pathways.
    Anti-inflammatory agent 72
  • HY-155942
    B-Raf IN 19
    		Inhibitor
    B-Raf IN 19 (compound 31) is a BRAF inhibitor that inhibits BRAF(WT) and BRAF(V600E) (IC50: 0.57 μM and 0.28 μM, respectively). B-Raf IN 19 inhibits MAPK signaling in melanoma cells.
    B-Raf IN 19
  • HY-N13121
    Daphnegiravone D
    		Inhibitor
    Daphnegiravone D (compound 70) is an HDAC6 inhibitor with anti-hepatocellular carcinoma activity. Daphnegiravone D can induce apoptosis and selectively inhibit the proliferation of liver cancer cells through the p38 and JNK MAPK pathways.
    Daphnegiravone D
  • HY-171301
    p38α MAPK/CK1δ inhibitor-1
    		Inhibitor
    p38α MAPK/CK1δ inhibitor-1 (Compound 3) exhibits inhibitory activity against p38α MAPK and CK1δ with IC50s of 0.185 µM and 0.089 µM.
    p38α MAPK/CK1δ inhibitor-1
  • HY-171297
    p38-α MAPK-IN-10
    		Inhibitor
    p38-α MAPK-IN-10 (Compound 6) is the inhibitor for p38α with an IC50 of 4 nM.
    p38-α MAPK-IN-10
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
p38 MAPK Isoform Comparison

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