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-B1104R
    Indoprofen (Standard)
    Inhibitor
    Indoprofen (Standard) is the analytical standard of Indoprofen. This product is intended for research and analytical applications. Indoprofen activates AKT-AMPK signaling pathway, inhibits NF-κB/MAPK signaling pathway. Indoprofen exhibits anti-inflammatory and immunomodulatory activities. Indoprofen is orally active.
    Indoprofen (Standard)
  • HY-103167
    CGH2466 dihydrochloride
    Inhibitor
    CGH 2466 dihydrochloride is an orally active adenosine A1, A2B and A3 receptor antagonist with the IC50 values of 19 nM, 21 nM, and 80 nM respectively. CGH 2466 dihydrochloride inhibits p38 MAPK (IC50 = 187~ 400 nM) and phosphodiesterase type 4D (IC50 = 22 nM). CGH 2466 dihydrochloride displays potent anti-inflammatory effects both in vitro and in vivo, and can be used for research on asthma and chronic obstructive pulmonary disease (COPD).
    CGH2466 dihydrochloride
  • HY-17007S2
    Saquinavir-13C6
    Inhibitor
    Saquinavir-13C6 (Ro 31-8959-13C6) is 13C labeled Saquinavir (HY-17007). Saquinavir (Ro 31-8959) is an orally active HIV protease inhibitor that can be used in the research of AIDS. Saquinavir also has anti-inflammatory activity and can induce apoptosis of human red blood cells.
    Saquinavir-<sup>13</sup>C<sub>6</sub>
  • HY-N1190
    DL-Syringaresinol
    Inhibitor
    DL-Syringaresinol ((±)-Syringaresinol), a lignin, inhibits UVA-induced upregulation of MMP-1 by suppressing MAPK/AP-1 signaling in human HaCaT keratinocytes and dermal fibroblasts (HDFs). DL-Syringaresinol has antiphotoaging properties against UVA-induced skin aging. DL-Syringaresinol exhibits weak antimycobacterial activity against Mycobacterium tuberculosis H37Rv.
    DL-Syringaresinol
  • HY-19399C
    Iroxanadine hydrobromide
    Activator
    Iroxanadine hydrobromide (BRX 005) is a vasculoprotector. Iroxanadine is a p38 kinase and HSP protein dual activator. Iroxanadine hydrobromide has the potential for atherosclerosis and vascular diseases research.
    Iroxanadine hydrobromide
  • HY-171296
    p38 Kinase inhibitor 8
    Inhibitor
    p38 Kinase inhibitor 8 (Compound CCLXXVIII) is the orally active inhibitor for p38β and JNK2α2 with IC50s of 6.3 nM and 53.6 nM. p38 Kinase inhibitor 8 exhibits anti-inflammatory effect in rats collagen-induced arthritis models.
    p38 Kinase inhibitor 8
  • HY-10405R
    Pamapimod (Standard)
    Inhibitor
    Pamapimod (Standard) is the analytical standard of Pamapimod. This product is intended for research and analytical applications. Pamapimod (Ro4402257) is a potent, selective and orally active p38 MAPK inhibitor with IC50s of 14 nM and 480 nM and Kis of 1.3 nM and 120 nM for p38α and p38β, respectively. Pamapimod has no activity against p38δ or p38γ isoforms. Pamapimod has the potential for rheumatoid arthritis and other autoimmune diseases treatment.
    Pamapimod (Standard)
  • HY-N15272
    Artocarpesin
    Inhibitor
    Artocarpesin is a flavonoid compound. Artocarpesin has inhibitory effects on methicillin-resistant Staphylococcus aureus (MRSA). Artocarpesin inhibits the production of NO, PGE2 and ROS by inhibiting COX-2 and iNOS expression, and plays an anti-inflammatory role. In addition, Artocarpesin inhibits platelet aggregation by inhibiting cyclic nucleotides and MAPKs, which can be used in the study of cardiovascular diseases.
    Artocarpesin
  • HY-100618R
    Hispidin (Standard)
    Inhibitor
    Hispidin (Standard) is the analytical standard of Hispidin. This product is intended for research and analytical applications. Hispidin, a PKC inhibitor and a phenolic compound can be found in Phellinus linteus, has been shown to possess strong anti-oxidant, anti-cancer, anti-diabetic, and anti-dementia properties[1][2][3][4][5][6][7].
    Hispidin (Standard)
  • HY-19399
    Iroxanadine
    Activator
    Iroxanadine (BRX 005) is a vasculoprotector. Iroxanadine is a p38 kinase and HSP protein dual activator. Iroxanadine has the potential for atherosclerosis and vascular diseases research.
    Iroxanadine
  • HY-10295AR
    SB 202190 hydrochloride (Standard)
    Inhibitor
    SB 202190 (hydrochloride) (Standard) is the analytical standard of SB 202190 (hydrochloride). This product is intended for research and analytical applications. SB 202190 hydrochloride is a selective p38 MAP kinase inhibitor with IC50s of 50 nM and 100 nM for p38α and p38β2, respectively. SB 202190 hydrochloride binds to the ATP pocket of the active recombinant human p38 kinase with a Kd of 38 nM. SB 202190 hydrochloride has anti-cancer activity. SB202190 hydrochloride induces autophagy.
    SB 202190 hydrochloride (Standard)
  • HY-125068
    RPR203494
    Inhibitor
    RPR203494 is a potent inhibitor against CYP isozymes. RPR203494 shows inhibition against p38 kinase with an IC50 value of 9 nM and an EC50 value of 60 nM. RPR203494 demonstrates an inhibition of hepatic Cytochrome P450. RPR203494 is promising for research of rheumatoid arthritis (RA).
    RPR203494
  • HY-105935R
    Keracyanin chloride (Standard)
    Inhibitor
    Keracyanin (chloride) (Standard) is the analytical standard of Keracyanin (chloride). This product is intended for research and analytical applications. Keracyanin chloride inhibits NF-κB/FAK/MAPK signaling pathway. Keracyanin chloride exhibits antioxidant, anti-inflammatory and hypoglycemic effects, and is orally active.
    Keracyanin chloride (Standard)
  • HY-N1181R
    Tamarixetin (Standard)
    Inhibitor
    Tamarixetin (Standard) is the analytical standard of Tamarixetin. This product is intended for research and analytical applications. Tamarixetin (4'-O-Methyl Quercetin) is an orally active natural flavonoid derivative of quercetin and caseinolytic protease p (ClpP) inhibitor with anti-inflammatory, antioxidant and antitumor effects. Tamarixetin inhibits the hydrolytic activity of ClpP to the fluorescent substrate Suc-LY-AMC with an IC50 of 49.73 μM, which can be used for the study of Staphylococcus aureus infection. Tamarixetin inhibits tumor cell growth, induces apoptosis, and cell cycle arrest. Tamarixetin prevents cardiac hypertrophy by inhibiting the NFAT and AKT pathways.
    Tamarixetin (Standard)
  • HY-N5083R
    Saponarin (Standard)
    Inhibitor
    Saponarin (Standard) is the analytical standard of Saponarin (HY-N5083). This product is intended for research and analytical applications. Saponarin is an orally active flavonoid compound. Saponarin can be isolated from Gypsophila trichotoma. Saponarin inhibits ERK/p38, NF-κB and MAPK phosphorylation and activates AMPK. Saponarin reduces IL-1β and COX-2. Saponarin has antioxidant, anti-inflammatory, hepatoprotective, hypoglycemic and hypotensive effects. Saponarin improves sleep disorders.
    Saponarin (Standard)
  • HY-N7046S
    Silybin B-d3
    Inhibitor
    Silybin B-d3 (Silibinin B-d3) is a deuterated Silybin B (HY-N7046). Silybin B (Silibinin B) is an orally active amyloid-β aggregation inhibitor and ATR pathway activator, that can cross the blood-brain barrier. Silybin B inhibits Aβ fibril formation and promotes amorphous aggregate formation, while activating the ATR-mediated DNA damage repair pathway and inhibiting JNK/p38 MAPK signaling. Silybin B can reduce Cisplatin (HY-17394)-induced neuronal DNA damage and apoptosis. Silybin B has anti-oxidative stress, cell cycle regulation and neuroprotective activities. Silybin B is mainly used in the study of Alzheimer's disease and Cisplatin chemotherapy-related neurotoxicity.
    Silybin B-d<sub>3</sub>
  • HY-10402R
    Losmapimod (Standard)
    Inhibitor
    Losmapimod (Standard) is the analytical standard of Losmapimod. This product is intended for research and analytical applications. Losmapimod (GSK-AHAB) is a selective, potent, and orally active p38 MAPK inhibitor with pKis of 8.1 and 7.6 for p38α and p38β, respectively.
    Losmapimod (Standard)
  • HY-N15347
    Talaromyketide B
    Inhibitor
    Talaromyketide B is a polyketide compound with anti-inflammatory activity, discovered in the soil bacterium Talaromyces sp. KYS-41. Talaromyketide B inhibits the activation of the NF-κB and MAPK signaling pathways and dose-dependently suppresses pro-inflammatory cytokines, such as IL-1β, IL-6, IL-10, and TNF-α, as well as the transcriptional activity of inflammatory mediators, including iNOS and COX-2. Talaromyketide B holds potential for research in the fields of immunity and inflammatory diseases.
    Talaromyketide B
  • HY-N12898
    (Z)-Tetradec-7-en-1-ol
    Activator
    (Z)-Tetradec-7-en-1-ol is an activator for mitogen-activated protein kinase (MAP kinase).
    (Z)-Tetradec-7-en-1-ol
  • HY-10401R
    VX-702 (Standard)
    Inhibitor
    VX-702 (Standard) is the analytical standard of VX-702. This product is intended for research and analytical applications. VX-702 is a highly selective inhibitor of p38α MAPK, 14-fold higher potency against the p38α versus p38β.
    VX-702 (Standard)
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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