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

p38 MAPK

p38 MAPK

Related Products

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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-181809
    BLT1-IN-1
    		Inhibitor
    BLT1-IN-1 is an orally active and selective BLT1 inhibitor with an IC50 of 8.7 nM and a Kd of 121 nM. BLT1-IN-1 exerts protective effects against acute lung injury and sepsis in in vivo models. BLT1-IN-1 can be used in research related to acute lung injury and sepsis.
    BLT1-IN-1
  • HY-N0660R
    Jujuboside B (Standard)
    		Inhibitor
    Jujuboside B (Standard) is the analytical standard of Jujuboside B. This product is intended for research and analytical applications. Jujuboside B is a bioactive saponin component isolated from Ziziphi Spinosae Semen (sour jujube seed), with oral efficacy and blood-brain barrier permeability. Jujuboside B induces acute leukemia cell death and drives necroptosis apoptosis by activating the RIPK1/RIPK3/MLKL pathway. Jujuboside B upregulates the expression of NOXA, PARP and caspase-3, activates AMPK, inhibits the proliferation of breast cancer cells, and induces cell apoptosis and autophagy. Jujuboside B inhibits angiogenesis and tumor growth by blocking the VEGFR-2 signaling pathway. Jujuboside B alleviates liver injury in mice by regulating the Nrf2-STING signaling pathway. Jujuboside B alleviates liver injury by regulating anti-inflammatory responses and downregulating the expression of 11β-HSD2. Jujuboside B induces ferroptosis and overcomes radioresistance in non-small cell lung cancer via the PPARγ-ATF3-Gpx4 signaling pathway. Jujuboside B exerts inhibitory effects on platelet aggregation. Jujuboside B inhibits febrile seizures by suppressing the activity of AMPA receptors. Jujuboside B reverses chronic unpredictable mild stress-promoted tumor progression by blocking the PI3K/Akt and MAPK/ERK pathways and dephosphorylating CREB signaling. Jujuboside B is applicable to related studies on acute leukemia, breast cancer, PM2.5-induced lung injury, hepatotoxicity, liver injury, colorectal cancer, non-small cell lung cancer, thromboembolic diseases, cardiovascular diseases associated with high platelet aggregation, febrile seizures, and depressive-like phenotypes.
    Jujuboside B (Standard)
  • HY-178433
    BChE/p38-α MAPK-IN-2
    		Inhibitor
    BChE/p38-α MAPK-IN-2 is a BChE and p38-α MAPK dual inhibitor. BChE/p38-α MAPK-IN-2 inhibits hBChE with an IC50 of 5.1 nM, showing 1000-fold selectivity over hAChE. BChE/p38-α MAPK-IN-2 inhibits p38α MAPK with an IC50 of 8.12 μM. BChE/p38-α MAPK-IN-2 exhibits neuroprotective effect and can be used for the research of neurological disease, such as Alzheimer’s disease.
    BChE/p38-α MAPK-IN-2
  • HY-P991234
    COVA208
    		Inhibitor
    COVA208 is a bispecific FynomAb (a fusion protein of an antibody and a Fyn SH3-derived binding protein) that targets HER2. COVA208 induces the degradation of HER2, reduces the levels of HER2, HER3, and EGFR, thereby effectively blocking the downstream signaling pathways of HER2, including the HER3-PI3K-AKT and MAPK pathways, and simultaneously inducing apoptosis of tumor cells. COVA208 is promising for research of cancers, such as HER2-positive breast cancer, gastric cancer, and colorectal cancer.
    COVA208
  • HY-178166
    ETI41
    		Inhibitor
    ETI41 is an orally active, selective TLR inhibitor that targets the nucleoside-binding Site I on TLR7 (IC50 = 0.63 μM) and TLR9 (IC50 = 0.16 μM), sparing surface TLRs (including TLR1/TLR2, TLR2/TLR6, TLR4 and TLR5). ETI41 potently inhibits endosomal TLR-mediated pro-inflammatory signaling with nanomolar activity in cellular, biophysical and in vivo assays. ETI41 suppresses the expression of inflammation-associated genes and effectively ameliorates symptoms in mouse models of psoriasis, and systemic lupus erythematosus (SLE). ETI41 can be used for autoimmune and inflammatory diseases research.
    ETI41
  • HY-163880
    EGFR-IN-119
    		Inhibitor
    EGFR-IN-119 (Compound 5l) is an inhibitor for EGFR with an IC50 of 84.3 nM. EGFR-IN-119 inhibits the cytotoxicity in lung cancer cell A549 with an IC50 of 1.34 μM. EGFR-IN-119 downregulates the expressions of EGFR, KRAS, and MAP2K genes, exhibits antioxidant activity through reduction of reactive oxygen species (ROS), and hyperpolarizes the mitochondrial membrane potential.
    EGFR-IN-119
  • HY-171277
    Casein kinase 1δ-IN-27
    		Inhibitor
    Casein kinase 1δ-IN-27 (Compound 8) is the inhibitor for casein kinase 1 that inhibits CK1α, CK1δ, CK1ε, and p38α with IC50s of 22, 16.5, 9.41 and 14.8 nM, respectively. Casein kinase 1δ-IN-27 inhibits the DUX4 expression with an IC50 of 10 nM.
    Casein kinase 1δ-IN-27
  • HY-15472A
    PRX-08066 maleate
    		Inhibitor
    PRX-08066 maleate is a selective and orally active 5-hydroxytryptamine receptor 2B (5-HT2BR) antagonist with a Ki of 3.4 nM. PRX-08066 maleate inhibits the MAPK pathway, 5-HT release and fibrotic factor (TGFβ1, CTGF and FGF2) expression. PRX-08066 maleate inhibits the proliferation of KRJ-I cells and induces apoptosis (caspase-3 activation). PRX-08066 maleate inhibits pulmonary vascular remodeling. PRX-08066 maleate can be used of pulmonary Arterial Hypertension (PAH) and neuroendocrine tumor (NET).
    PRX-08066 maleate
  • HY-RS08105
    Mapk13 Mouse Pre-designed siRNA Set A
    		Inhibitor

    Mapk13 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Mapk13 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Mapk13 Mouse Pre-designed siRNA Set A
  • HY-N0566R
    23-Hydroxybetulinic acid (Standard)
    		Inhibitor
    23-Hydroxybetulinic acid (Standard) is the analytical standard of 23-Hydroxybetulinic acid (HY-N0566). This product is intended for research and analytical applications. 23-Hydroxybetulinic acid (Anemosapogenin) is an orally active triterpenoid with broad-spectrum anticancer activity. 23-Hydroxybetulinic acid reduces the levels of Bcl-2 and survivin, elevates the level of Bax, promotes the cleavage/activation of caspase-3 and caspase-9, and induces apoptosis via the endogenous mitochondrial pathway involving cytochrome C release and mitochondrial membrane potential disruption. 23-Hydroxybetulinic acid arrests the cell cycle at S and G1 phases, inhibits cancer cell proliferation, blocks the MAPK signaling pathway, regulates MMP2, and induces autophagic apoptosis by upregulating beclin-1. 23-Hydroxybetulinic acid inhibits the activity and efflux function of P-gp, increases the intracellular accumulation of chemotherapeutic drugs, and synergistically enhances cytotoxicity with Doxorubicin (HY-15142). 23-Hydroxybetulinic acid inhibits the phosphorylation and nuclear translocation of STAT6, blocks M2 macrophage polarization, and reduces M2 macrophage-mediated apoptosis resistance of colon cancer cells. 23-Hydroxybetulinic acid can be used in related studies on chronic myeloid leukemia, hepatocellular carcinoma, sarcoma 180, multidrug-resistant breast cancer, leukemia, Doxorubicin-induced cardiotoxicity, and colorectal cancer.
    23-Hydroxybetulinic acid (Standard)
  • HY-119731
    Antidesmone
    		Inhibitor
    Antidesmone is a isoquinoline alkaloid that can be isolated from Antidesma membranaceum. Antidesmone can prevent acute lung injury in vivo via inhibiting MAPK and NF-κb activities.
    Antidesmone
  • HY-182818
    SH494
    		Inhibitor
    SH494 is a p38 MAPK inhibitor and Nrf2 pathway activator. SH494 inhibits RANKL-induced phosphorylation of p38 and disrupts the MAPK cascade associated with osteoclastogenesis. SH494 activates the Nrf2 pathway, upregulates downstream target genes and induces the expression of cytoprotective enzymes. SH494 reduces intracellular ROS accumulation and restores mitochondrial membrane potential (ΔΨm) to normal. SH494 decreases osteoclast activity and alleviates osteoporosis symptoms in ovariectomized mice. SH494 can be used for research on osteoporosis.
    SH494
  • HY-183252
    ICA-1S
    		Inhibitor
    ICA-1S is a specific PKC-ι inhibitor. ICA-1S can inhibit MAPK/JNK signaling pathway and downregulate the levels of c-Jun and TNF-α. ICA-1S inhibits the proliferation of breast cancer cells. ICA-1S induces apoptosis of breast cancer cells. ICA-1S can be used in breast cancer-related research.
    ICA-1S
  • HY-130133
    DHW-221
    		Inhibitor
    DHW-221 is a potent orally active dual PI3K/mTOR inhibitor, exhibiting low nanomolar potency against all four Class I PI3K isoforms and mTOR (PI3Kα, IC50 = 0.50 nM; PI3Kβ, IC50 = 1.9 nM; PI3Kγ, IC50 = 1.8 nM; PI3Kδ, IC50 = 0.74 nM; mTOR, IC50 = 3.9 nM). DHW-221 exerts antitumor effects by blocking the PI3K/Akt/mTOR pathway and inducing mitochondrial apoptosis and paraptosis (via Endoplasmic Reticulum (ER) stress and MAPK signaling) and arrests cell cycle, thereby inhibiting cell migration, invasion and angiogenesis. DHW-221 inhibits tumor growth in both the A549/Taxol (HY-B0015) and the HCC827 xenograft mouse models. DHW-221 can be used for non-small cell lung cancer (NSCLC), colon and breast cancer research.
    DHW-221
  • HY-146032
    p38-α MAPK-IN-4
    		Inhibitor
    p38-α MAPK-IN-4 (Compound 69) is a selective p38α MAPK inhibitor with an IC50 of 1.5 µM. p38-α MAPK-IN-4 rapidly and strongly prevents the development of mechanical allodynia (MA) in vivo.
    p38-α MAPK-IN-4
  • HY-17598R
    Rafoxanide (Standard)
    		Inhibitor
    Rafoxanide (Standard) is the analytical standard of Rafoxanide. This product is intended for research and analytical applications. Rafoxanide is a poent, orally active halogenated salicylaniline agent with antiparasitic activity. Rafoxanide interferes with energy metabolism in trematodes by uncoupling oxidative phosphorylation. Rafoxanide is also found to be a potent inhibitor of the BRAF V600E mutant protein, which is important in colorectal cancer. Rafoxanide can be used for the control of infestation with Hemonchus species or Fasciola species in sheep and cattle as well as Oestrus ovis in sheep. Rafoxanide can also be used for cancer research.
    Rafoxanide (Standard)
  • HY-12145
    CP-99994 hydrochloride
    		Inhibitor
    CP-99994 hydrochloride is a Tachykinin neurokinin 1 (NK-1) receptor antagonist with a Ki of 0.25 nM. CP-99994 hydrochloride prevents colorectal sensitization in the context of visceral hypersensitivity. CP-99994 hydrochloride reduces colorectal hypersensitivity induced by acetic acid injections in a model of bladder-colon cross-sensitization. CP-99994 hydrochloride attenuates the neuroglial interactions and MAPK-p38 phosphorylation associated with visceral hypersensitivity.
    CP-99994 hydrochloride
  • HY-176127
    JX10
    		Inhibitor
    JX10 is a senomorphic agent. JX10 suppresses the expression of p38 MAPK and NF-κB. JX10 exhibits competent antiaging effects in C. elegans, senescent cells, and aged mice.
    JX10
  • HY-18882
    p38α-IN-11
    		Inhibitor
    P38α-IN-11 (Compound 16c) is a p38α inhibitor with a KD value of 586 nM. P38α-IN-11 can be used for research on cervical cancer.
    p38α-IN-11
  • HY-103566A
    LY456236 free base
    		Inhibitor
    LY456236 free base 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 free base can also inhibit EGFR, with an IC50 of 0.918 μM. LY456236 free base blocks cell proliferation by inhibiting the MAPK pathway, reversing the anti-apoptotic effect of DHPG (HY-12598A). LY456236 free base can be used in epilepsy research.
    LY456236 free base
Cat. No. Product Name / Synonyms Species Source
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p38 MAPK Isoform Comparison

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