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-N0498R
    Nitidine chloride (Standard)
    Inhibitor
    Nitidine (chloride) (Standard) is the analytical standard of Nitidine (chloride). This product is intended for research and analytical applications. Nitidine chloride, a potential anti-malarial lead compound derived from Zanthoxylum nitidum (Roxb) DC, exerts potent anticancer activity through diverse pathways, including inducing apoptosis, inhibiting STAT3 signaling cascade, DNA topoisomerase 1 and 2A, ERK and c-Src/FAK associated signaling pathway. Nitidine chloride inhibits LPS-induced inflammatory cytokines production via MAPK and NF-kB pathway.
    Nitidine chloride (Standard)
  • HY-N8593S
    Undecane-d24
    Inhibitor
    Undecane-d24 is the deuterium labeled Undecane (HY-N8593).Undecane is a potent cAMP agonist with anti-allergic and anti-inflammatory activities. Undecane inhibits degranulation and the secretion of histamine and TNF-α. Undecane reverses the increased levels of p38 phosphorylation, NF-κB transcriptional activity and target cytokine/chemokine genes, including thymus and activation-regulated chemokine (TARC), macrophage-derived chemokine (MDC) and interleukin-8 (IL-8). Undecane can be used for the study of skin inflammatory disorders, such as atopic dermatitis.
    Undecane-d<sub>24</sub>
  • HY-168841
    p38α-MK2-IN-1
    Inhibitor
    p38α-MK2-IN-1 (Compound 36) is a p38α-MK2 complex inhibitor (IC50: 5 nM). p38α-MK2-IN-1 has a robust inflammation inhibitory effect and joint repair ability.
    p38α-MK2-IN-1
  • HY-N17850
    5-Hydroxy-6,7-dimethoxyflavone
    Inhibitor
    5-Hydroxy-6,7-dimethoxyflavone is an orally active inhibitor of ferroptosis (Ferroptosis). 5-Hydroxy-6,7-dimethoxyflavone inhibits H1N1 virus-induced ferroptosis by upregulating the expression of SLC7A11 and GPX4. 5-Hydroxy-6,7-dimethoxyflavone alleviates inflammatory responses and inhibits apoptosis by suppressing the activation of the NF-κB and p38 MAPK signaling pathways. 5-Hydroxy-6,7-dimethoxyflavone can be used in studies related to H1N1 influenza virus infection.
    5-Hydroxy-6,7-dimethoxyflavone
  • HY-152087
    DCZ19931
    Inhibitor
    DCZ19931 is a potent multi-targeting kinase inhibitor. DCZ19931 has anti-angiogenic effects on ocular neovascularization. DCZ19931 also inhibits ERK1/2-MAPK and p38-MAPK signaling.
    DCZ19931
  • HY-183799
    GSI526
    Inhibitor
    GSI526 is a IRAK4 PROTAC degrader (DC50=40.17 nM, Dmax=97%; THP-1) based on the VHL ubiquitin-proteasome system. GSI526 inhibits IRAK4-mediated NF-κB and MAPK inflammatory signaling pathways, and induces IRAK4 degradation in myeloid cells. GSI526 is applicable to inflammation-related research.
    GSI526
  • HY-P2358A
    PSMα3 TFA
    Inhibitor
    PSMα3 TFA is an inhibitor of NF-κB p65 and p38 MAPK. PSMα3 TFA forms membrane pores and binds to residues of human insulin B chain to inhibit insulin aggregation. PSMα3 TFA forms α-type amyloid-like fibrils to exert cytotoxic effects, and acts as a functional amyloid virulence determinant of Staphylococcus aureus. PSMα3 TFA is applicable to research related to spondyloarthritis, rheumatoid arthritis, insulin-derived amyloidosis, and Staphylococcus aureus infection.
    PSMα3 TFA
  • HY-N3364
    Lucidone
    Inhibitor
    Lucidone, an anti-inflammatory agent that can be isolated from the fruit of Lindera erythrocarpa Makino. Lucidone inhibits LPS-induced NO and PGE2 production in RAW 264.7 mouse macrophages. Lucidone also decreases TNF-α secretion, iNOS and COX-2 expression. Lucidone prevents NF-κB translocation and inhibits JNK and p38MAPK signals. Lucidone also has inhibitory activity against Dengue virus (DENV) (EC50=25 μM).
    Lucidone
  • HY-181031
    FGFR-IN-24
    Inhibitor
    FGFR-IN-24 (Compound 8r) is a FGFR inhibitor. FGFR-IN-24 potently inhibits FGFR1/2/3 with IC50 values of 10.0, 6.9, and 30.2 nM, respectively. FGFR-IN-24 exhibits superior inhibitory activity toward FGFR1V561M, FGFR2V564F, and FGFR2N549K mutations with IC50 values of 6.8, 0.7, and 0.8 nM, respectively. FGFR-IN-24 induces Apoptosis. FGFR-IN-24 efficiently suppresses the phosphorylation of FGFR2 and its downstream signaling mediators (AKT and MAPK). FGFR-IN-24 demonstrates favorable antitumor efficacy in an RT112/84 bladder cancer xenograft model.
    FGFR-IN-24
  • HY-B0736
    Sertaconazole
    Activator 99.42%
    Sertaconazole (FI7056 free base) is a broad-spectrum topical antifungal agent, exhibits anti-inflammatory activity via activation of a p38-COX-2-PGE2 pathway. Sertaconazole is also a microtubule inhibitor, shows antiproliferative effect, induces apoptosis and autophagy, and can also inhibit the migration of cells.
    Sertaconazole
  • HY-116295A
    MRS2690 disodium
    Activator
    MRS2690 disodium is a selective P2Y14 receptor agonist. MRS2690 disodium inhibits adenylyl cyclase activity, thereby reducing intracellular cAMP levels and mediating concentration-dependent vasoconstriction of porcine coronary arteries. MRS2690 disodium induces intracellular calcium mobilization, activates P38 and stimulates [35S]GTPγS binding to RBL-2H3 cell membranes. MRS2690 enhances antigen (NP-BSA)-, C3a-induced β-hexosaminidase (β-Hex) release. MRS2690 disodium can be used for ischemic heart disease.
    MRS2690 disodium
  • HY-149921
    Antiangiogenic agent 3
    Inhibitor
    Antiangiogenic agent 3 (compound 3) is a potent antiangiogenic agent. Antiangiogenic agent 3 is an inhibitor of human umbilical vein endothelial cells (HUVEC). Antiangiogenic agent 3 inhibits HUVEC migration and chemotactic motilities. Antiangiogenic agent 3 also decreases the gene expression of Src, cdc42, and MAPK.
    Antiangiogenic agent 3
  • HY-120485
    Raxofelast
    Inhibitor
    Raxofelast (IRFI-016) is an antioxidant agent in various models of ischemia-reperfusion injury. Raxofelast has antiproliferative activity in H2O2-stimulated rat aortic smooth muscle cells. Raxofelast attenuates the activation of mitogen-activating protein kinase (MAPK), ERK kinase 1, 2 (MEK1,2) and protein kinase C (PKC) without affecting Ras expression.
    Raxofelast
  • HY-N0735R
    Phellodendrine chloride (Standard)
    Inhibitor
    Phellodendrine chloride (Standard) is the analytical standard of Phellodendrine chloride (HY-N0735). Phellodendrine chloride is an orally active plant alkaloid. Phellodendrine chloride inhibits the proliferation of KRAS-mutated pancreatic cancer cells by suppressing macropinocytosis and glutamine metabolism, inducing ROS accumulation and mitochondrial apoptosis. Phellodendrine chloride promotes autophagy by activating the AMPK/mTOR pathway, alleviating intestinal damage in ulcerative colitis. Phellodendrine chloride can alleviate gouty arthritis by inhibiting the IL-6/STAT3 signaling pathway. Phellodendrine chloride suppresses allergic reactions by altering the conformation of MRGPRB3/MRGPRX2 protein, thereby inhibiting the activation of PKC and subsequent downstream MAPK and NF-κB signaling. Phellodendrine chloride inhibits the AKT/NF-κB pathway and down-regulates the expression of COX-2, thereby protecting zebrafish embryos from oxidative stress. Phellodendrine chloride has an anti-major depressive disorder (MDD) effect by down-regulating CHRM1, HTR1A, and the PI3K/Akt signaling pathway.
    Phellodendrine chloride (Standard)
  • HY-172409
    CB1R antagonist 2
    Inhibitor
    CB1R antagonist 2 (Compound 11g) is the antagonist for cannabinoid receptor 1 (CB1R), that inhibits MAPK/NF-κB signaling pathway and exhibits anti-inflammatory activity. CB1R antagonist 2 inhibits LPS (HY-D1056)-induced IL-6, IL-1β and TNF-α expressions in RAW264.7. CB1R antagonist 2 ameliorates OVA-induced allergic rhinitis in mouse models.
    CB1R antagonist 2
  • HY-N2423B
    (E/Z)-Sinigrin free base
    Inhibitor
    (E/Z)-Sinigrin ((E/Z)-Allyl-glucosinolate; (E/Z)-2-Propenyl-glucosinolate) free base is an orally active aliphatic thioglucoside anti-leukemia compound. Allyl isothiocyanate, produced by the hydrolysis of (E/Z)-sinigrin free base by myrosinase, has an IC50 of 2.71 μM against HL60 leukemia cells. The hydrolysis products of (E/Z)-sinigrin free base can further activate apoptosis pathways, inhibit NF-κB and MAPK signaling pathways, and induce phase II metabolic enzyme activity, thus exhibiting anti-cancer, anti-inflammatory, antibacterial, antioxidant, and wound healing activities. (E/Z)-Sinigrin free base can be used in research on cancer, inflammation-related diseases (such as atherosclerosis), and infectious diseases. (E/Z)-Sinigrin free base can be naturally extracted from the seeds of Brassica nigra, Brassica juncea, and other Brassicaceae plants such as broccoli and Brussels sprouts. Methyl pechueloate is a guaiane-type sesquiterpene ester compound and a potential precursor of xerantholide. It is useful in the structural elucidation and biosynthetic pathway studies of sesquiterpenoids. Methyl pechueloate can be naturally extracted from the aerial parts of Pechuel-Loeschea leibnitziae (Kuntze) O. Hoffm.
    (E/Z)-Sinigrin free base
  • HY-177155
    p38α-IN-10
    Inhibitor
    P38α-IN-10 (Compound 8) is an orally active inhibitor of p38α, with an IC₅₀ of 230 nM. P38α-IN-10 has an inhibitory effect on TNF production induced by LPS (HY-D1056). P38α-IN-10 can be used for the study of diseases such as rheumatoid arthritis and septic shock.
    p38α-IN-10
  • HY-180324
    Candidone
    Inhibitor
    Candidone is a type of flavanone phenolic compound with anti-cancer and antibacterial activities. Candidone inhibits the proliferation of hepatoblastoma and cholangiocarcinoma cells and induces their apoptosis by up-regulating p21, Bax, and caspase 3/9, and down-regulating Bcl-2 and survivin. It reduces the metastatic ability of cancer cells by inhibiting the expression of phosphorylated p38 and matrix metalloproteinase MMP-9. Candidone has inhibitory effects on multidrug-resistant bacterial strains. Candidone binds to the base pairs of DNA in a groove-binding manner, thereby slightly altering the conformation of DNA.
    Candidone
  • HY-W018197R
    2-Phenylacetamide (Standard)
    Inhibitor
    2-Phenylacetamide (Standard) is the analytical standard of 2-Phenylacetamide. This product is intended for research and analytical applications. 2-Phenylacetamide is a estrogen-like compound that can be isolated from Lepidium apetalum seeds. 2-Phenylacetamide inhibits p38 MAPK signaling pathway, exhibits anti-inflammatory, antioxidant, anti-hypertensive, and anti-fibrosis effects. 2-Phenylacetamide is orally active.
    2-Phenylacetamide (Standard)
  • HY-108642A
    AMG-548 hydrochloride
    Inhibitor
    AMG-548 hydrochloride, an orally active and selective p38α inhibitor (Ki=0.5 nM), shows slightly selective over p38β (Ki=36 nM) and >1000 fold selective against p38γ and p38δ. AMG-548 hydrochloride is also extremely potent in the inhibition of whole blood LPS stimulated TNFα (IC50=3 nM). AMG-548 hydrochloride inhibits Wnt signaling by directly inhibiting Casein kinase 1 isoforms δ and ε.
    AMG-548 hydrochloride
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