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-B0612AR
    Lercanidipine hydrochloride (Standard)
    Inhibitor
    Lercanidipine (hydrochloride) (Standard) is the analytical standard of Lercanidipine (hydrochloride). This product is intended for research and analytical applications. Lercanidipine is a third-generation, lipophilic, brain-penetrant, vascular-selective and orally active dihydropyridine-calcium channel blocker with a pIC50 of 7.74 (converts from μM). Lercanidipine has long lasting antihypertensive action as well as reno- and neuro-protective effect. Lercanidipine also shows anti-oxidant, anti-inflammatory and anti-apoptotic properties. Lercanidipine can be used in cardiovascular and neurological research.
    Lercanidipine hydrochloride (Standard)
  • HY-108642BR
    AMG-548 dihydrochloride (Standard)
    Inhibitor
    AMG-548 dihydrochloride (Standard) is the analytical standard of AMG-548 (dihydrochloride) (HY-108642B). This product is intended for research and analytical applications. AMG-548 dihydrochloride, 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 dihydrochloride is also extremely potent in the inhibition of whole blood LPS stimulated TNFα (IC50=3 nM). AMG-548 dihydrochloride inhibits Wnt signaling by directly inhibiting Casein Kinase 1 isoforms δ and ε.
    AMG-548 dihydrochloride (Standard)
  • HY-N9388R
    Andrograpanin (Standard)
    Inhibitor
    Andrograpanin (Standard) is the analytical standard of Andrograpanin. This product is intended for research and analytical applications. Andrograpanin, a bioactive compound from Andrographis paniculata, exhibits anti-inflammatory and anti-infectious properties.
    Andrograpanin (Standard)
  • HY-N0589R
    Dehydrodiisoeugenol (Standard)
    Inhibitor
    Dehydrodiisoeugenol (Standard) is the analytical standard of Dehydrodiisoeugenol (HY-N0589). This product is intended for research and analytical applications. Dehydrodiisoeugenol is an orally active anti-inflammatory and anti-tumor agent. Dehydrodiisoeugenol inhibits the proliferation of colorectal cancer cells, and induces apoptosis, autophagy, endoplasmic reticulum stress and cell cycle arrest. Dehydrodiisoeugenol also exerts anti-inflammatory effects by inhibiting the activation of NF-κB and the expression of COX-2. Dehydrodiisoeugenol can be used in the research related to colorectal cancer, inflammatory diseases and ulcerative colitis.
    Dehydrodiisoeugenol (Standard)
  • HY-160930
    TOP1288
    Inhibitor
    TOP1288 is a narrow spectrum kinase inhibitor for P38α, Src and Syk kinase, with IC50 of 116nM, 24nM and 659nM, respectively. TOP1288 inhibits inflammatory cytokine release from inflamed biopsies and myofibroblasts.
    TOP1288
  • HY-10404R
    Dilmapimod (Standard)
    Inhibitor
    Dilmapimod (Standard) is the analytical standard of Dilmapimod. This product is intended for research and analytical applications. Dilmapimod (SB-681323) is a potent p38 MAPK inhibitor that potentially suppresses inflammation in chronic obstructive pulmonary disease.
    Dilmapimod (Standard)
  • HY-172195
    FS-694
    Inhibitor
    FS-694, a chemical probe, is the inhibitor for p38α with an IC50 of 0.2 nM. FS-694 inhibits the TNFα release in human whole blood with an IC50 of 35.0 nM.
    FS-694
  • HY-110103R
    ML3403 (Standard)
    Inhibitor
    ML3403 (Standard) is the analytical standard of ML3403. This product is intended for research and analytical applications. ML3403 is a potent p38 MAPK inhibitor with an IC50 of 0.38 μM.
    ML3403 (Standard)
  • HY-N9164
    Hecubine
    Inhibitor
    Hecubine is a monoterpene indole alkaloid found in Ervatamia ocinalis. Hecubine activates TREM2 expression, reduces LPS (HY-D1056)-stimulated inammatory cytokines (TNF-αIL-6IL-1β) overexpression, as well as suppresses the levels of TLR4-, MyD88-, MAPK/PI3K/AKT- and NF-κB-related proteins. Hecubin also exhibits antioxidative effect, reduces ROS production and activates of the Nrf2/HO-1 pathway. Hecubine rescues LPS-induced behavioral deficits in zebrash larvae. Hecubine can be used for the research of neural inflammation-associated central nervous system diseases.
    Hecubine
  • HY-N7102R
    Ceftiofur (Standard)
    Inhibitor
    Ceftiofur (Standard) is the analytical standard of Ceftiofur (HY-N7102). This product is intended for research and analytical applications. Ceftiofur is a cell wall synthesis inhibitor that targets bacterial penicillin-binding proteins (PBPs) and has anti-inflammatory effects in endotoxemia. Ceftiofur exerts bactericidal effects by inhibiting the synthesis of bacterial cell wall peptidoglycan, leading to bacterial cell lysis. Ceftiofur also inhibits the activation of NF-κB and MAPKs, thereby reducing the secretion of pro-inflammatory cytokines such as TNF-α, IL-1β, and IL-6.
    Ceftiofur (Standard)
  • HY-112333
    SC-68376
    Inhibitor
    SC-68376 is a potent, reversible, ATP-competitive, and selective inhibitor of p38 MAP kinase inhibitor.
    SC-68376
  • HY-171254
    p38-α MAPK-IN-9
    Inhibitor
    p38-α MAPK-IN-9 (Compound 25a) is a p38-α MAPK inhibitor (Ki: 0.057 nM). p38-α MAPK-IN-9 inhibits LPS (HY-D1056) induced TNFα production in hPBMCs (IC50: 18 nM).
    p38-α MAPK-IN-9
  • HY-181079
    RANKL-IN-2
    Inhibitor
    RANKL-IN-2 is an orally active RANKL inhibitor with Kd values of 3.21 μM and 4.625 μM in the SPR and MST assays, respectively. RANKL-IN-2 binds to RANKL to interfere with RANKL-RANK interaction. RANKL-IN-2 suppresses osteoclastogenesis by inhibiting ROS, MAPK and NF-κB pathways. RANKL-IN-2 inhibits osteoclastogenesis via inhibition of RANKL-induced osteoclast formation, bone resorption, and osteoclast-specific gene and protein expressions in vitro.RANKL-IN-2 prevents bone loss in ovariectomized osteoporosis mice.RANKL-IN-2 can be used for the research of osteoporosis.
    RANKL-IN-2
  • HY-B0898S
    Ceftiofur-d3 sodium
    Inhibitor
    Ceftiofur-d3 sodium is deuterium labeled Ceftiofur sodium (HY-B0898). Ceftiofur sodium is a cell wall synthesis inhibitor that targets bacterial penicillin-binding proteins (PBPs) and has anti-inflammatory effects in endotoxemia. Ceftiofur sodium exerts bactericidal effects by inhibiting the synthesis of bacterial cell wall peptidoglycan, leading to bacterial cell lysis. Ceftiofur sodium also inhibits the activation of NF-κB and MAPKs, thereby reducing the secretion of pro-inflammatory cytokines such as TNF-α, IL-1β, and IL-6.
    Ceftiofur-d<sub>3</sub> sodium
  • HY-B0072S
    Tropisetron-d5
    Inhibitor
    Tropisetron-d5 (SDZ-ICS-930-d5 (free base)) is deuterium labeled Tropisetron. Tropisetron (SDZ-ICS-930 free base) is an orally active anti-inflammatory and antiemetic agent. Tropisetron is 5-HT3R antagonists with a Ki of 5.3 nM. Tropisetron is also a partial agonist of α7 nicotinic receptor (α7 nAChR) with an EC50 of 1.3 μM. In addition, Tropisetron has antitumor and neuroprotective effects.
    Tropisetron-d<sub>5</sub>
  • HY-10403R
    PH-797804 (Standard)
    Inhibitor
    PH-797804 (Standard) is the analytical standard of PH-797804 (HY-10403). This product is intended for research and analytical applications. PH-797804 is a ATP-competitive, selective p38α/p38β inhibitor (IC50=26 nM and Ki=5.8 nM for p38α; Ki=40 nM for p38β) and does not inhibit JNK2.
    PH-797804 (Standard)
  • HY-N0442R
    5-O-Methylvisammioside (Standard)
    Inhibitor
    5-O-Methylvisammioside (4'-O-β-D-Glucosyl-5-O-methylvisamminol) (Standard) is the analytical standard of 5-O-Methylvisammioside. This product is intended for research and analytical applications. 5-O-Methylvisammioside is an orally active natural chromone glycoside and multiple biological activities. 5-O-Methylvisammioside inhibits ferroptosis by activating the Nrf2/HO-1 signaling axis. 5-O-Methylvisammioside alleviates intestinal barrier damage by inhibiting the ROS/NF-κB/NLRP3 pathway. 5-O-Methylvisammioside exerts a protective effect against acute liver injury by reducing ALT/AST, decreasing inflammatory infiltration, and inhibiting IκB-α phosphorylation and NF-κB nuclear translocation. 5-O-Methylvisammioside blocks the HMGB1/RAGE/MEK/ERK signaling axis to exert anti-tumor and anti-angiogenic effects. 5-O-Methylvisammioside improves depression-like behaviors by inhibiting Src kinase and the NF-κB pathway.
    5-O-Methylvisammioside (Standard)
  • HY-49073
    p38 MAP Kinase Inhibitor Ⅵ
    Inhibitor 98.0%
    p38 MAP Kinase Inhibitor VI (compound c32) is a p38 MAPK inhibitor with an inhibition rate of 24%.
    p38 MAP Kinase Inhibitor Ⅵ
  • HY-N0631R
    Cornuside (Standard)
    Inhibitor
    Cornuside (Standard) is the analytical standard of Cornuside (HY-N0631). This product is intended for research and analytical applications. Cornuside is an iridoid glycoside with anti-allergic, anti-inflammatory, and neuroprotective activities. Cornuside exerts anti-allergic activity by downregulating the p38 MAPK, JNK, and NF-κB signaling pathways, and inhibits IgE-mediated histamine release from mast cells. Cornuside improves cognitive impairment in mice by inhibiting BACE1 activity (IC50 = 55.84 μg/mL) and enhancing ChAT activity. Cornuside inhibits LPS (HY-D1056)-induced inflammatory mediators, including iNOS, COX-2, PGE2, TNF-α, IL-6, and IL-1β, by suppressing NF-κB activation.
    Cornuside (Standard)
  • HY-N1431A
    Tabersonine hydrochloride
    Inhibitor 98.55%
    Tabersonine hydrochloride is a selective, orally active NLRP3 inhibitor. Tabersonine hydrochloride directly binds to the NACHT domain of NLRP3, inhibiting its ATPase activity and oligomerization, thereby blocking ASC spot formation and caspase-1 activation, and reducing the release of pro-inflammatory cytokines such as IL-1β. Tabersonine hydrochloride also inhibits K63-linked ubiquitination of TRAF6, blocking NF-κB, PI3K/Akt, and p38 MAPK signaling pathways. Tabersonine hydrochloride can inhibit inflammatory responses, induce apoptosis of liver cancer cells through mitochondrial pathways and death receptor pathways, reduce mitochondrial membrane potential, promote cytochrome c release, and activate caspase proteins. Tabersonine hydrochloride is mainly used in the study of NLRP3-driven inflammatory diseases (such as acute lung injury, sepsis, peritonitis) and tumors such as liver cancer.
    Tabersonine hydrochloride
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