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-P10414A
    Klotho-derived peptide 1 hydrochloride
    Inhibitor 98.57%
    Klotho-derived peptide 1 (KP1 human) hydrochloride blocks TGF-β/TGF-β receptor 2 interaction, inhibits TGF-β-induced activation of Smad2/3 and mitogen-activated protein kinase (MAPK), and exhibits anti-fibrotic and kidney protective effects in mouse model.
    Klotho-derived peptide 1 hydrochloride
  • HY-159799
    p38α inhibitor 5
    Inhibitor 98.69%
    p38α inhibitor 5 (compound 1) is a PROTAC-type target protein ligand targeting p38 and can be used to synthesize NR-11c (HY-159798).
    p38α inhibitor 5
  • HY-118612
    RO3201195
    Inhibitor 99.77%
    RO3201195 (compound 1) is an inhibitor of p38 MAPK. RO3201195 inhibits WS cell proliferation with IC50 value of 190 nM.
    RO3201195
  • HY-N2908R
    Atraric acid (Standard)
    Inhibitor
    Atraric acid (Standard) is the analytical standard of Atraric acid. This product is intended for research and analytical applications. Atraric acid (Methyl atrarate) is a specific androgen receptor (AR) antagonist with anti-inflammatory and anticancer effects. Atraric acid represses the expression of the endogenous prostate specific antigen gene in both LNCaP and C4-2 cells. Atraric acid can also inhibit the synthesis of NO and cytokine, and suppress the MAPK-NFκB signaling pathway. Atraric acid can be used to research prostate diseases and inflammatory diseases[1][2].
    Atraric acid (Standard)
  • HY-120111A
    MW-150 hydrochloride
    Inhibitor
    MW-150 hydrochloride (MW01-18-150SRM hydrochloride) is a selective, CNS penetrant, and orally active inhibitor of p38α MAPK with a Ki of 101 nM. MW-150 hydrochloride (MW01-18-150SRM hydrochloride) inhibits the ability of the endogenous p38α MAPK to phosphorylate an endogenous substrate MK2 in activated glia.
    MW-150 hydrochloride
  • HY-120111B
    MW-150 dihydrochloride dihydrate
    Inhibitor
    MW-150 dihydrochloride dihydrate (MW01-18-150SRM dihydrochloride dihydrate) is a selective, CNS penetrant, and orally active inhibitor of p38α MAPK with a Ki of 101 nM. MW-150 dihydrochloride dihydrate (MW01-18-150SRM dihydrochloride dihydrate) inhibits the ability of the endogenous p38α MAPK to phosphorylate an endogenous substrate MK2 in activated glia.
    MW-150 dihydrochloride dihydrate
  • HY-13241A
    Ralimetinib
    Inhibitor
    Ralimetinib (LY2228820) is a potent and selective, ATP-competitive inhibitor of p38 MAPK α/β, with IC50s of 5.3 and 3.2 nM, respectively. Ralimetinib (LY2228820) selectively inhibits phosphorylation of MK2 (Thr334), with no effect on phosphorylation of p38α MAPK, JNK, ERK1/2, c-Jun, ATF2, or c-Myc.
    Ralimetinib
  • HY-10406A
    Talmapimod hydrochloride
    Inhibitor
    Talmapimod (SCIO-469) hydrochloride is an orally active, selective, and ATP-competitive p38α inhibitor with an IC50 of 9 nM. Talmapimod hydrochloride shows about 10-fold selectivity over p38β, and at least 2000-fold selectivity over a panel of 20 other kinases, including other MAPKs.
    Talmapimod hydrochloride
  • HY-14654A
    Aspirin lithium
    Activator
    Aspirin (Acetylsalicylic Acid) lithium is an orally active, potent and irreversible inhibitor of cyclooxygenase COX-1 and COX-2, with IC50 values of 5 and 210 μg/mL, respectively. Aspirin lithium induces apoptosis. Aspirin lithium inhibits the activation of NF-κB. Aspirin lithium also inhibits platelet prostaglandin synthetase, and can prevent coronary artery and cerebrovascular thrombosis.
    Aspirin lithium
  • HY-114038
    SB-747651A
    Inhibitor
    SB-747651A is an ATP-competitive mitogen- and stress-activated kinase 1 (MSK1) inhibitor with an IC50 of 11 nM. SB-747651A also inhibits PRK2, RSK1, p70S6K and ROCK-II. SB-747651A can be used for inflammation research.
    SB-747651A
  • HY-N0168AS
    (Rac)-Hesperetin-d3
    Activator
    (Rac)-Hesperetin-d3 is the deuterium labeled (Rac)-Hesperetin. (Rac)-Hesperetin is the racemate of Hesperetin. Hesperetin is a natural flavanone, and acts as a potent and broad-spectrum inhibitor against human UGT activity. Hesperetin induces apoptosis via p38 MAPK activation.
    (Rac)-Hesperetin-d<sub>3</sub>
  • HY-W097625
    6-Methoxyflavone
    Inhibitor 99.87%
    6-Methoxyflavone is a methoxyflavone that can be isolated from Pimelea simplex F. Muell. and P. decora Domin.. 6-Methoxyflavone exhibits anti-inflammatory effects and neuropathic pain relieving properties in chemotherapy-induced peripheral neuropathy (CIPN). 6-Methoxyflavone can be used in the research of nephritis.
    6-Methoxyflavone
  • HY-W745090
    Isomaltulose monohydrate
    Inhibitor
    Isomaltulose monohydrate is a fMLP inhibitor and also inhibits Src kinase, ERK1/2, p38 and AKT phosphorylation signals in immune regulation. Isomaltulose monohydrate can interfere with the interaction between the βγ subunit of the fMLP receptor Gi protein and its downstream molecules, thereby inhibiting fMLP-induced respiratory burst. Isomaltulose monohydrate inhibits fMLP (0.1 μM)-induced superoxide anion production (IC50: 1.98 μM) , cathepsin G release (IC< sub>50: 2.76 μM) and chemotaxis. Isomaltulose monohydrate can improve excessive activation of neutrophils and reduce inflammation or tissue damage. A series of derivatives of Isomaltulose monohydrate are found to have inhibitory effects on FSGS-related TRPC6 functional mutants.
    Isomaltulose monohydrate
  • HY-163115
    2-Oleoxyphenethyl phosphocholin
    Inhibitor
    2-Oleoxyphenethyl phosphocholin (compound 1b) is a p38 MAPK inhibitor with anticancer activity. 2-Oleoxyphenethyl phosphocholin may bind to the p38 MAPK lipid-binding pocket and has broad-spectrum anti-tumor and lipid-modulating activities.
    2-Oleoxyphenethyl  phosphocholin
  • HY-14654B
    Aspirin DL-lysine
    Activator
    Aspirin DL-lysine (ASA DL-lysine) is a lysine-containing aspirin derivative. Aspirin DL-lysine inhibits cyclooxygenase (COX) in platelets, blocks the synthesis of thromboxane A2 (TXA2), and thus inhibits platelet aggregation and activation. Aspirin DL-lysine can be used to study thrombin generation in patients with unstable angina pectoris.
    Aspirin DL-lysine
  • HY-169100
    Antiproliferative agent-57
    Antiproliferative agent-57 (compound M2) is a tumor angiogenesis inhibitor. Antiproliferative agent-57 inhibits the secretion of VEGF in SiHa cells under hypoxic conditions (IC50=0.68 μM) without inducing cytotoxicity. Antiproliferative agent-57 can modulate the PI3K/AKT/mTOR and MAPK signaling pathways in tumor cells to inhibit the expression of HIF-1α and VEGF in tumor tissues.
    Antiproliferative agent-57
  • HY-RS08104
    MAPK13 Human Pre-designed siRNA Set A
    Inhibitor

    MAPK13 Human Pre-designed siRNA Set A contains three designed siRNAs for MAPK13 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.

    MAPK13 Human Pre-designed siRNA Set A
    MAPK13 Human Pre-designed siRNA Set A
  • 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-142963
    TLR4/NF-κB/MAPK-IN-1
    TLR4/NF-κB/MAPK-IN-1 is a new type of antineuroinflammatory agent by suppressing TLR4/NF-kB/MAPK pathways.
    TLR4/NF-κB/MAPK-IN-1
  • HY-173344
    DB-10
    DB-10 is a pro-agent of 3-nbutylphthalide (NBP) (HY-B0647). DB-10 has significantly high uptake ability via pyrilamine cationic transporters in the temperature and energy dependent manner in cells. DB-10 improves the survival rate of cells. DB-10 could rapidly convert into active original agent and increase the accumulation in the brain in vivo. DB-10 can be used for ischemic stroke study.
    DB-10
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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