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.

p38 MAPK Related Products (228):

Cat. No. Product Name Effect Purity
  • HY-10256
    Adezmapimod Inhibitor 99.96%
    Adezmapimod (SB 203580) is a selective and ATP-competitive p38 MAPK inhibitor with IC50s of 50 nM and 500 nM for SAPK2a/p38 and SAPK2b/p38β2, respectively. Adezmapimod inhibits LCK, GSK3β and PKBα with IC50s of 100-500-fold higher than that for SAPK2a/p38. Adezmapimod does not disrupt JNK activity and is an autophagy and mitophagy activator[1].
  • HY-10320
    Doramapimod Inhibitor 99.98%
    Doramapimod (BIRB 796) is an orally active, highly potent p38 MAPK inhibitor, which has an IC50 for p38α=38 nM, for p38β=65 nM, for p38γ=200 nM, and for p38δ=520 nM. Doramapimod has picomolar affinity for p38 kinase (Kd=0.1 nM). Doramapimod also inhibits B-Raf with an IC50 of 83 nM[1][2].
  • HY-10261
    Afatinib Inhibitor 99.93%
    Afatinib (BIBW 2992) is an orally active, potent and irreversible dual specificity inhibitor of ErbB family (EGFR and HER2), with IC50 values of 0.5 nM, 0.4 nM, 10 nM and 14 nM for EGFRwt, EGFRL858R, EGFRL858R/T790M and HER2, respectively. Afatinib can be used for the research of esophageal squamous cell carcinoma (ESCC), non-small cell lung cancer (NSCLC) and gastric cancer[1][2][3][4].
  • HY-10295
    SB 202190 Inhibitor 99.89%
    SB 202190 is a selective p38 MAP kinase inhibitor with IC50s of 50 nM and 100 nM for p38α and p38β2, respectively. SB 202190 binds to the ATP pocket of the active recombinant human p38 kinase with a Kd of 38 nM. SB 202190 has anti-cancer activity and rescued memory deficits[1][2]. SB202190 induces autophagy[3].
  • HY-14654
    Aspirin Activator
    Aspirin (Acetylsalicylic Acid) 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 induces apoptosis. Aspirin inhibits the activation of NF-κB. Aspirin also inhibits platelet prostaglandin synthetase, and can prevent coronary artery and cerebrovascular thrombosis[1][2][3][4][5][6].
  • HY-163429
    J-1149 Inhibitor
    J-1149 is a potent ALK5 inhibitor, with an IC50 value of 0.017 μM. J-1149 also shows weak p38α MAP kinase inhibitory activity, with an IC50 value of 0.435 μM. J-1149 can be used for liver fibrosis research[1].
  • HY-120225
    NJK14047 Inhibitor
    NJK14047 inhibits p38 MAPK and the differentation of naive T-cells to Th1 and Th17 cells. NJK14047 ameliorates the collage-induced rheumatoid arthritis and Imiquimod (HY-B0180)-induced psoriasis in mice[1].
  • HY-110262
    MSC 2032964A Inhibitor
    MSC 2032964A is an orally active, selective inhibitor for apoptosis signal-regulating kinase 1(ASK1) with IC50 of 96 nM. MSC 2032964A preserves the visual responses in EAE mice model and exhibits potency in ameliorating the neuroinflammation[1].
  • HY-11087
    SD 0006 Inhibitor 98.73%
    SD 0006 (SD-06) is an orally active, selective, ATP-competitive and potent diaryl pyrazole inhibitor of p38α MAP kinase, with an IC50 of 110 nM for p38α[1][2].
  • 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[1].
  • 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[1].
  • HY-N2406
    Dihydrocaffeic acid Inhibitor 99.38%
    Dihydrocaffeic acid is a microbial metabolite of flavonoids, reduces phosphorylation of MAPK p38 and prevent UVB-induced skin damage. Antioxidant potential and anti-inflammatory activity[1].
  • HY-U00324
    p38 MAPK-IN-2 Inhibitor
    p38 MAPK-IN-2 is an inhibitor of p38 kinase.
  • HY-137506
    XST-14 Inhibitor 99.69%
    XST-14 is a potent, competitive and highly selective ULK1 inhibitor with an IC50 of 26.6 nM. XST-14 induces autophagy inhibition by reducing the phosphorylation of the ULK1 downstream substrate. XST-14 induces apoptosis in hepatocellular carcinoma (HCC) cells and has antitumor effects[1].
  • 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.
  • HY-107427
    PF-3644022 Inhibitor
    PF-3644022 is a potent, selective, orally active and ATP-competitive MAPKAPK2 (MK2) inhibitor with an IC50 of 5.2 nM and a Ki of 3 nM. PF-3644022 also inhibits MK3 and p38 regulated/activated kinase (PRAK) with IC50s of 53 nM and 5.0 nM, respectively. PF-3644022 potently inhibits TNFα production and has anti-inflammatory effect[1].
  • 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.
  • HY-N0168S
    Hesperetin-d3
    Hesperetin-d3 is the deuterium labeled Hesperetin[1]. Hesperetin is a natural flavanone, and acts as a potent and broad-spectrum inhibitor against human UGT activity. Hesperetin regulates apoptosis[2][3].
  • HY-138936
    SSK1 Activator 99.02%
    SSK1, a senescence-specific killing compound, is a β-galactosidase-targeted proagent attenuates inflammation. SSK1 is activated by lysosomal β-galactosidase and selectively killed senescent cells through the activation of p38 MAPK and induction of apoptosis[1].
  • HY-19399B
    Iroxanadine sulfate Activator
    Iroxanadine ((-)-BRX 005) sulfate is a potent activator of p38 kinase, and an enhancer of stress-responsive heat shock protein (Hsp) expression. Iroxanadine sulfate also is a vasculoprotector against atherosclerosis. Iroxanadine sulfate may improve survival of vascular endothelial cells (ECs) following ischemia/reperfusion stress[1].