2. Signaling Pathways
  3. MAPK/ERK Pathway
  4. p38 MAPK

p38 MAPK

p38 MAPK

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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 Isoform Specific Products:

p38 MAPK Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-148065
    FMF-06-098-1
    		Inhibitor 98.77%
    FMF-06-098-1 is a multi-target kinase PROTAC degrader. FMF-06-098-1 can be used to target degradation kinases which degrades AAK1, AΒL2, AURKA, AURKB, BUBIB, CDC7, CDK1, CDK12, CDK13, CDK2, CDK4, CDk6, CDK7, CDK9, CHEK1, CSNKID, EPHA1, PER, FGFR1, GAK, IRAK4, ITK, LIMK2, MAP4K2, MAP4K3, MAPK6, MAPK7, MARK4, MELK, PKN3, PLK4, PRKAA1, PTK2, PTK6, RPS6KA4, S1K2, STK35, TNK2, UHMK1, ULK1, and WEE1 (Pink: target protein ligand (HY-169396); Blue: VHL ligand (HY-112078); Black: Linker (HY-124380)).
    FMF-06-098-1
  • HY-145564A
    Emprumapimod hydrochloride
    		Inhibitor ≥98.0%
    Emprumapimod (PF-07265803) hydrochloride is an orally active and selective inhibitor of p38α MAPK. Emprumapimod hydrochloride can be used for the research of dilated cardiomyopathy and acute inflammatory pain.
    Emprumapimod hydrochloride
  • HY-W007355S1
    Skatole-d8
    		Activator 98.50%
    Skatole-d8 is the deuterium labeled Skatole. Skatole is produced by intestinal bacteria, regulates intestinal epithelial cellular functions through activating aryl hydrocarbon receptors and p38.
    Skatole-d<sub>8</sub>
  • HY-N8251
    Cyclocurcumin
    		Inhibitor 99.48%
    Cyclocurcumin is a potent p38α inhibitor. Cyclocurcumin shows antirheumatic, antivasoconstrictive and antioxidant activities.
    Cyclocurcumin
  • HY-N0208
    Kaempferol-3-O-glucorhamnoside
    		Inhibitor 99.64%
    Kaempferol-3-O-glucorhamnoside, a flavonoid derived from plant Thesium chinense Turcz, inhibits inflammatory responses via MAPK and NF-κB pathways in vitro and in vivo.
    Kaempferol-3-O-glucorhamnoside
  • HY-111954
    (+)-Erinacin A
    		Inhibitor 99.97%
    (+)-Erinacin A (Erinacine A) is a cyanoditerpenoid isolated from Hericium erinaceus with anticancer, anti-inflammatory and neuroprotective activities. (+)-Erinacin A can induce cancer cell death by activating extrinsic and intrinsic apoptosis pathways. (+)-Erinacin A can also inhibit the expression of NO synthase (iNOS) and the production of nitrotyrosine to exert inflammatory and neuroprotective effects, thereby reducing ischemic brain damage.
    (+)-Erinacin A
  • HY-N10303
    Withangulatin A
    		Inhibitor 99.76%
    Withangulatin A is the inhibitor for COX-2. Withangulatin A inhibits MAPK, NF-κB, Akt/mTOR/p70S6K pathway, exhibits antitumor, anti-inflammatory and trypanocidal activities.
    Withangulatin A
  • HY-138875
    Tetraacetylphytosphingosine
    		Inhibitor 99.90%
    Tetraacetylphytosphingosine is a sphingolipid metabolite produced by phytosphingosine acetylation. Tetraacetylphytosphingosine exerts its inhibitory action on angiogenesis through the inhibition of MAPK activation and intracellular calcium increase. Tetraacetylphytosphingosine induces apoptosis in HaCaT cells.
    Tetraacetylphytosphingosine
  • HY-RS08108
    Mapk14 Mouse Pre-designed siRNA Set A
    		Inhibitor

    Mapk14 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Mapk14 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Mapk14 Mouse Pre-designed siRNA Set A
    Mapk14 Mouse Pre-designed siRNA Set A
  • HY-N10913
    Chloranthalactone B
    		Inhibitor
    Chloranthalactone B, a lindenane-type sesquiterpenoid, is a nature product that could be isolated from Chinese medicinal herb Sarcandra glabra. Chloranthalactone B inhibits the production of inflammatory mediators by inhibiting the AP-1 and p38 MAPK pathways.
    Chloranthalactone B
  • HY-N0168AS1
    (Rac)-Hesperetin-13C,d3
    		Activator 99.3%
    (Rac)-Hesperetin-13C,d3 is the 13C- and 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-<sup>13</sup>C,d<sub>3</sub>
  • HY-B0026
    Ceftiofur hydrochloride
    		Inhibitor 98.43%
    Ceftiofur hydrochloride is a cell wall synthesis inhibitor that targets bacterial penicillin-binding proteins (PBPs) and has anti-inflammatory effects in endotoxemia. Ceftiofur hydrochloride exerts bactericidal effects by inhibiting the synthesis of bacterial cell wall peptidoglycan, leading to bacterial cell lysis. Ceftiofur hydrochloride 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 hydrochloride
  • HY-120349
    LL-Z1640-4
    		Inhibitor 99.0%
    LL-Z1640-4 is a potent p38/JNK signaling inhibitor. LL-Z1640-4 significantly diminishes p38 and JNK activation in HCC cells transfected with MLK4 siRNA. LL-Z1640-4 markedly attenuates ROS production induced by MLK4 knockdown. LL-Z1640-4 significantly reduces the apoptotic cells in HCC cells transfected with siMLK4.
    LL-Z1640-4
  • HY-P10954
    Link N peptide
    		Activator 99.62%
    Link N peptide is a proteoglycan aggregates activator in the extracellular matrix. Link N peptide can selectively activate the p38 mitogen-activated protein kinase (MAPK) pathway to promote the expression of type I and II collagens in human intervertebral disc cells. Link N peptide is promising for research of intervertebral disc degeneration-related diseases.
    Link N peptide
  • HY-N1365R
    Isoscopoletin (Standard)
    		Inhibitor
    Isoscopoletin (Standard) is the analytical standard of Isoscopoletin. This product is intended for research and analytical applications. Isoscopoletin (6-Hydroxy-7-methoxycoumarin) is an active constituent in Artemisia argyi leaves. Isoscopoletin shows substantial inhibition against cell proliferation, with IC50s of 4.0 μM and 1.6 μM for human CCRF-CEM leukaemia cells and multidrug resistant subline CEM/ADR5000, respectively. Isoscopoletin (6-Hydroxy-7-methoxycoumarin) possesses inhibitory activity against HBV replication. Isoscopoletin exhibits anti-inflammatory activity through inhibition of MAPK/NF-κB/STAT/AKT signaling pathway.
    Isoscopoletin (Standard)
  • HY-18754A
    FR 167653
    		Inhibitor 99.87%
    FR 167653 (FR 167653 sulfate), an orally active and selective p38 MAPK inhibitor, is a potent suppressor of TNF-α and IL-1β production via specific inhibition of p38 MAPK activity. FR 167653 (FR 167653 sulfate) is effective in treating inflammation, relieving trauma and ischemia-reperfusion injury in vivo.
    FR 167653
  • HY-159798
    NR-11c
    		Inhibitor 99.75%
    NR-11c is a selective and potent p38α PROTAC degrader. NR-11c effectively degrades p38α in a variety of tumor cells. When administered intraperitoneally or intravenously to mice, NR-11c primarily acts in the liver. NR-11c can be used in cancer research. (Pink: p38α inhibitor 5 (HY-159799); Black: linker (HY-159800); Blue: VHL E3 ligase ligand (HY-112078)).
    NR-11c
  • HY-171178
    DK2403
    		98.24%
    DK2403 (compound 25) is a MAP2K7 inhibitor (IC50= 0.01 μM). DK2403 can effectively inhibit MAP2K7 without significantly disrupting the larger kinase group and can be used to study childhood T-cell acute lymphoblastic leukemia.
    DK2403
  • HY-N2423
    Sinigrin hydrate
    		Inhibitor 99.77%
    Sinigrin (Allyl-glucosinolate) hydrate is an orally active glucosinolate found in cruciferous plants. Sinigrin hydrate possesses multiple activities such as anti-cancer, antibacterial, antifungal, anti-inflammatory, antioxidant, and inhibition of fat synthesis. Sinigrin hydrate can be used in the research of tumors, inflammatory, and metabolic diseases.
    Sinigrin hydrate
  • HY-18862
    PF-03715455
    		Inhibitor 98.44%
    PF-03715455 is a potent inhaled p38 MAPK inhibitor. PF-03715455 shows some selectivity for p38α over p38β with respective IC50 values of 0.88 and 23 nM. PF-03715455 potently inhibits LPS-induced TNFα production in human whole blood (IC50=1.7 nM). PF-03715455 has potential for the treatment of COPD (chronic obstructive pulmonary disease).
    PF-03715455
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
p38 MAPK Isoform Comparison

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