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-170484
    KAI-11101
    		Inhibitor
    KAI-11101 is the inhibitor for dual leucine zipper kinase (DLK, MAP3K12) with a Ki of 0.7 nM. KAI-11101 inhibits Paclitaxel (HY-B0015)-induced cJun phosphorylation (IC50=95 nM) and thus inhibits the activation of MAPK pathway. KAI-11101 is blood brain barrier penetrable and can be further investigated for its neuroprotective property.
    KAI-11101
  • HY-178209
    p38 MAP Kinase-IN-3
    		Inhibitor
    p38 MAP Kinase-IN-3 is a p38 MAP kinase inhibitor (IC50 = 0.09 µM). p38 MAP Kinase-IN-3 can be used for research on metabolic conditions.
    p38 MAP Kinase-IN-3
  • HY-RS08106
    Mapk13 Rat Pre-designed siRNA Set A
    		Inhibitor

    Mapk13 Rat Pre-designed siRNA Set A contains three designed siRNAs for Mapk13 gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Mapk13 Rat Pre-designed siRNA Set A
  • HY-19345
    Vacquinol-1
    		Activator
    Vacquinol-1 (NSC13316) is a MKK4-specific activator that activates MAPK pathways. Vacquinol-1 specifically induces human glioblastoma cell (GC) death, attenuates tumor progression and prolongs survival in a glioblastoma multiforme (GBM) mouse model. Vacquinol-1 also induces apoptosis in hepatocellular carcinoma (HCC)cell.
    Vacquinol-1
  • HY-N10782
    Balanophonin
    		Inhibitor
    Balanophonin is an anti-inflammatory and anti-cancer agent. Balanophonin inhibits microglial activation and neurodegeneration via inhibiting activated microglia-induced apoptosis.
    Balanophonin
  • HY-122961
    Dehydromiltirone
    		Inhibitor
    Dehydromiltirone (1,2-Didehydromiltirone) is a diterpenoid quinone with an anti-inflammatory effect. Dehydromiltirone prevents liver injury by modifying the MAPK and NF-κB signaling pathways, reducing neuroinflammatory responses, and inhibiting platelet aggregation. Dehydromiltirone can be used for osteoporosis research.
    Dehydromiltirone
  • HY-172916
    LC-SF-14
    		Inhibitor
    LC-SF-14 is a selective dual inhibitor of SHP2 and FGFR (IC50 values are 71.6 and 8.9 nM, respectively). LC-SF-14 inhibits FGFR2-FRS2α-SHP2-MAPK signaling and ERK phosphorylation. LC-SF-14 inhibits the proliferation of KATOIII cancer cells (IC50: 9.2 nM). LC-SF-14 has antitumor activity in the SNU-16 xenograft mouse model. LC-SF-14 can be used in FGFR2-driven gastric cancer research.
    LC-SF-14
  • HY-N8453
    Macranthoin G
    		Inhibitor
    Macranthoin G is an inhibitor of p38 MAPK. Macranthoin G protects the cytotoxicity induced by Aβ or hydrogen peroxide in neuronal cells by downregulating p38 MAPK. Macranthoin G can used in study Alzheimer’s Disease.
    Macranthoin G
  • HY-N2393R
    Kukoamine B (Standard)
    		Inhibitor
    Kukoamine B (Standard) is the analytical standard of Kukoamine B. This product is intended for research and analytical applications. Kukoamine B, a spermine alkaloid, is a potent dual LPS and CpG DNA inhibitor with Kd values of 1.23 µM and 0.66 µM, respectively. Kukoamine B exerts anti-inflammatory, anti-diabetic, anti-oxidant, anti-osteoporotic and neuroprotective effects. Kukoamine B has the potential for the study of sepsis.
    Kukoamine B (Standard)
  • HY-115385R
    Lumichrome (Standard)
    		Inhibitor
    Lumichrome (Standard) is the analytical standard of Lumichrome. This product is intended for research and analytical applications. Lumichrome, a photodegradation product of Riboflavin, is an endogenous compound in humans. Lumichrome inhibits human lung cancer cell growth and induces apoptosis via a p53-dependent mechanism. Lumichrom is the inhibitor for AKT/β-catenin signaling pathway. Lumichrom is the inhibitor for AKT/β-catenin signaling pathway.
    Lumichrome (Standard)
  • HY-175431
    p38 MAPK-IN-8
    		Inhibitor
    p38 MAPK-IN-8 (Compound 8) is an orally active, potent and selective p38 mitogen-activated protein kinase (p38 MAPK) inhibitor. p38 MAPK-IN-8 is promising for research of inflammatory responses, autoimmune diseases, and cancer.
    p38 MAPK-IN-8
  • HY-176019
    Methylcarbamyl PAF C-8
    		Activator
    Methylcarbamyl PAF C-8 is resistant to the degradation function of platelet-activating factor acetylhydrolase (PAF-AH). It has a half-life of more than 100 minutes in platelet-poor plasma and possesses the activity of inducing platelet aggregation. In NRK-49 cells overexpressing the PAF receptor, Methylcarbamyl PAF C-8 can induce the expression of c-myc and c-fos, and activate mitogen-activated protein kinase (MAPK). Additionally, Methylcarbamyl PAF C-8 can induce cell cycle arrest in the G1 phase. Methylcarbamyl PAF C-8 holds promise for research in the fields of cardiovascular diseases and anti-cancer therapy.
    Methylcarbamyl PAF C-8
  • HY-E70759
    MKK6 SDTD Recombinant Human Active Protein Kinase
    The mitogen-activated protein kinase kinase 6 (MKK6) is one of the upstream activators of p38 MAPK. MKK6 activates myocardial cell NF-κB and inhibits apoptosis in a p38 MAPK-dependent manner. MKK6 SDTD is a mutant of MKK6. MKK6 SDTD Recombinant Human Active Protein Kinase is a recombinant MKK6 SDTD protein that can be used to study MKK6 SDTD-related functions.
    MKK6 SDTD Recombinant Human Active Protein Kinase
  • HY-P10414
    Klotho-derived peptide 1
    		Inhibitor
    Klotho-derived peptide 1 (KP1 human) blocks TGF-β/TGF-β receptor 2 interaction, inhibits TGF-β-induced activation of Smad2/3 and mitogen-activated protein kinase (MAPK), and exhibits anti-fibrotic and kidney protective effects in mouse model.
    Klotho-derived peptide 1
  • HY-174858
    dASK1-VHL
    		Inhibitor
    dASK1-VHL is an orally active PROTAC degrader targeting ASK1. dASK1-VHL can effectively bind VHL and promote the selective degradation of ASK1. dASK1-VHL effectively reduces ASK1 protein levels, inhibits the activation of p38 MAPK, and reduces liver lipid content. dASK1-VHL provides new ideas for the study of Metabolic dysfunction-associated steatohepatitis (MASH) (Pink: ASK1 ligand 1 (HY-174860); Blue: E3 ligand (S,R,S)-AHPC (HY-125845); Black: Linker, (S,R,S)-AHPC-CO-C2-PEG-NHCO-C2-COOH (HY-174861).
    dASK1-VHL
  • HY-175764
    FIP22
    		Inhibitor
    FIP22 is a potent and selective IRAK4 PROTAC degrader (HEK293T cells: DC50 = 3.2 nM; THP-1 cells: DC50 = 10.6 nM). FIP22 induces the ubiquitin-proteasome system by forming an IRAK4-FIP22-CRBN ternary complex (EC50 = 12.63 nM), thereby potently blocking IRAK4-mediated NF-κB and MAPK signaling pathways. FIP22 can be used for the study of atopic dermatitis (Pink: IRAK4 ligand (HY-175765); Blue: CRBN ligand (HY-W087383); Black: Linker (HY-46871)).
    FIP22
  • HY-N16118
    Asperosaponin V
    		Modulator
    Asperosaponin V is an indirect modulator of bone metabolism-related targets (e.g., PI3K/AKT, BMP-2/p38, and ERK 1/2 pathways). Asperosaponin V promotes marrow stromal cell proliferation and induces osteoblast differentiation. Asperosaponin V is promising for research of osteoporosis and fracture healing.
    Asperosaponin V
  • HY-174377
    PeS-9
    		Inhibitor

    PeS-9 is an Androgen Receptor (AR) degrader that induces androgen receptor degradation PeS-9 induces mitochondrial and ER stress by promoting cytotoxic ROS production, leading to the release of mitochondrial cytochrome C and AIF. PeS-9 subsequently activates caspases-9 and -3, causing DNA fragmentation and apoptotic cell death. PeS-9 has anticancer activity against prostate cancer and exerts in vivo antitumor and antimetastatic activity with minor side effects. PeS-9 can be used for the study of targeting monotherapy against GLUT-1-overexpressing tumors.
    PeS-9
  • HY-172803
    Ferroptosis inducer-7
    		Activator
    Ferroptosis inducer-7 is an orally active and selective ferroptosis inducer via inositol 1,4,5-trisphosphate receptor (IP3R)/calcium release-activated calcium channel protein (ORAI). Ferroptosis inducer-7 exhibits a notable effect in alleviating anemia symptoms, suppressing bone marrow CTLs activation, and improving hematopoietic function in immune-mediated bone marrow failure. Ferroptosis inducer-7 can be studied in research for aplastic anemia.
    Ferroptosis inducer-7
  • HY-P3918
    EGF-R (661-681) T669 Peptide
    EGF-R (661-681) T669 Peptide is a MAPK substrate that can used to measure MAPK catalytic activity.
    EGF-R (661-681) T669 Peptide
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
p38 MAPK Isoform Comparison

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