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-172871
    Anti-inflammatory agent 102
    Anti-inflammatory agent 102 (Compound 11a) is an orally active anti-inflammatory agent. Anti-inflammatory agent 102 exerts its anti-inflammatory effect by blocking the activation of the ASK1/p38 MAPKs/NF-κB signaling pathway. Anti-inflammatory agent 102 has significant anti-inflammatory activity and can inhibit the release of NO, ROS, and inflammatory factors (such as IL-6, TNF-α, IL-1β). Anti-inflammatory agent 102 can be used in the study of inflammatory diseases such as ulcerative colitis (UC).
    Anti-inflammatory agent 102
  • 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-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
    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-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-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-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
  • HY-115605
    CN009543V
    		Activator
    CN009543V is an epidermal growth factor receptor (EGFR) agonist. CN009543V enhances tyrosine phosphorylation of EGFR at Tyr1068 and Tyr1173, thereby activating the MAPK/ERK cascade. CN009543V inhibits the activity of PTP-1B in MDA MB468 cells. CN009543V can be used in cancer research.
    CN009543V
  • HY-17003R
    Saquinavir mesylate (Standard)
    		Inhibitor
    Saquinavir mesylate (Standard) (Ro 31-8959/003 (Standard)) is the analytical standard of Saquinavir mesylate (HY-17003). This product is intended for research and analytical applications. Saquinavir (Ro 31-8959) mesylate is an orally active HIV protease inhibitor that can be used in the research of AIDS. Saquinavir mesylate also has anti-inflammatory activity and can induce apoptosis of human red blood cells.
    Saquinavir mesylate (Standard)
  • HY-10320G
    Doramapimod (GMP)
    		Inhibitor
    Doramapimod GMP (BIRB 796 GMP) is an orally active inhibitor for p38 MAPK, with IC50s of 38, 65, 200 and 520 nM, for p38α, p38β, p38γ, p38δ. Doramapimod exhibits cytotoxicity and antitumor activity against multiple myeloma, synergizes with multidrug resistance protein 1 (ABCB1) and aurora kinase inhibitor VX680, promoting their antitumor efficacy against oral epidermoid carcinoma and cervical cancer. Doramapimod also exhibits anti-inflammatory activity.
    Doramapimod (GMP)
  • HY-N0168AR
    (Rac)-Hesperetin (Standard)
    		Activator
    (Rac)-Hesperetin (Standard) is the analytical standard of (Rac)-Hesperetin. This product is intended for research and analytical applications. (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 (Standard)
  • HY-10261AR
    Afatinib dimaleate (Standard)
    		Inhibitor
    Afatinib (dimaleate) (Standard) is the analytical standard of Afatinib (dimaleate). This product is intended for research and analytical applications. Afatinib (BIBW 2992) dimaleate 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 dimaleate can be used for the research of esophageal squamous cell carcinoma (ESCC), non-small cell lung cancer (NSCLC) and gastric cancer.
    Afatinib dimaleate (Standard)
  • HY-N1506R
    Ganodermanontriol (Standard)
    		Modulator
    Karbutilate (Standard) is the analytical standard of Karbutilate. This product is intended for research and analytical applications. Karbutilate (NIA-11092) is a nonselective soil-active herbicide which is used to kill one-leaf pinyon saplings.
    Ganodermanontriol (Standard)
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
p38 MAPK Isoform Comparison

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