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-175764
    FIP22
    Inhibitor 98.53%
    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-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
  • HY-N12717
    Casuarinin
    Inhibitor 98.24%
    Casuarinin is an orally active antiproliferative, anti-inflammatory, antifungal, virucidal and gastroprotective agent. Casuarinin upregulates the expression of p21/WAF1, Fas/APO‑1, mFasL, sFasL and HSP‑70, arrests cell cycle, induces apoptosis and inhibits cancer cell proliferation. Casuarinin inhibits TNF‑α-induced phosphorylation of MAPK and activation of NF‑κB, downregulates the expression of iNOS, NF‑κB, COX‑2 and ICAM‑1, and reduces the production of proinflammatory mediators. Casuarinin attenuates ethanol-induced activation of caspase‑3 and elevation of TNF‑α, inhibits the growth of Candida albicans, and inhibits HSV‑2. Casuarinin can be used in research related to mammary adenocarcinoma, inflammatory skin diseases, gastric ulcers, candidiasis and herpes simplex virus infections.
    Casuarinin
  • HY-N5073
    Vitexin-4''-O-glucoside
    Inhibitor 99.86%
    Vitexin-4''-O-glucoside (4''-O-Glucosylvitexin) is an orally active natural flavonoid component with multiple pharmacological effects including antioxidation, anti-inflammation, cytoprotection and anti-apoptosis. Vitexin-4''-O-glucoside regulates the MAPK signaling pathway by downregulating the phosphorylation levels of JNK and p38, thereby blocking endoplasmic reticulum stress responses. Vitexin-4''-O-glucoside alleviates oxidative stress by reducing MDA content and upregulating the activities of SOD and CAT, attenuates inflammation by downregulating the expressions of inflammatory factors TNF-α, IL-1β and IL-6, and also reduces LDH release and inhibits caspase-3 activation. Vitexin-4''-O-glucoside effectively improves drug-induced acute liver injury and exerts significant protective effects against myocardial hypoxia/reoxygenation injury. Vitexin-4''-O-glucoside can be used in studies on acute liver injury, cardiovascular diseases and myocardial hypoxia-reoxygenation injury.
    Vitexin-4''-O-glucoside
  • 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 99.81%
    (+)-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-N4090
    Vicenin 3
    Inhibitor 99.90%
    Vicenin 3 is an angiotensin-converting enzyme (ACE) inhibitor (IC50 = 46.91 μM) that can be isolated from the aerial parts of Desmodium styracifolium. Vicenin 3 ameliorates IL-1β-induced extracellular matrix degradation in SW1353 chondrocytes by regulating the MAPK pathway. Vicenin 3 can be used for the study of osteoarthritis (OA) and hypertension.
    Vicenin 3
  • HY-W166297
    Esculin sesquihydrate
    Inhibitor 98.80%
    Esculin sesquihydrate, a fluorescent coumarin glucoside, is an active ingredient of ash bark. Esculin sesquihydrate ameliorates cognitive impairment in experimental diabetic nephropathy (DN), and exerts anti?oxidative stress and anti?inflammatory effects, via the MAPK signaling pathway.
    Esculin sesquihydrate
  • HY-N1195
    Sugiol
    Inhibitor 99.88%
    Sugiol is an abietane diterpenoid, can be isolated from Calocedrus formosana bark. Sugiol has anti-inflammatory activity, could effectively reduce intracellular reactive oxygen species (ROS) production in lipopolysaccharide (LPS)-stimulated macrophages.
    Sugiol
  • HY-N6576
    Hellebrigenin
    Inhibitor 99.69%
    Hellebrigenin is an inhibitor that selectively targets the MAPK signaling pathway (ERK, p38, JNK) and XIAP, and can inhibit Akt expression and phosphorylation. Hellebrigenin can activate endogenous apoptosis pathways (such as mitochondrial membrane potential disruption, Caspase family activation, PARP cleavage), downregulate anti-apoptotic proteins (Bcl-2, Bcl-xL) and upregulate pro-apoptotic proteins (Bax, Bak). Hellebrigenin can also induce DNA double-strand breaks to activate the ATM pathway. Hellebrigenin can inhibit tumor cell proliferation and clone formation, and is mainly used in the study of oral squamous cell carcinoma, liver cancer and other cancers.
    Hellebrigenin
  • HY-125980
    LX-3
    Inhibitor 98.08%
    LX-3 is a selective activator of the p38 MAPK signaling pathway and activates EGFP reporter genes that are silenced by DNA methylation, such as TNF, EGR1, LY6K, and ISG20.
    LX-3
  • 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-N8593
    Undecane
    Inhibitor 99.66%
    Undecane is a potent cAMP agonist with anti-allergic and anti-inflammatory activities. Undecane inhibits degranulation and the secretion of histamine and TNF-α. Undecane reverses the increased levels of p38 phosphorylation, NF-κB transcriptional activity and target cytokine/chemokine genes, including thymus and activation-regulated chemokine (TARC), macrophage-derived chemokine (MDC) and interleukin-8 (IL-8). Undecane can be used for the study of skin inflammatory disorders, such as atopic dermatitis.
    Undecane
  • HY-148748G
    Butyzamide (GMP)
    Activator
    Butyzamide (GMP) is Butyzamide (HY-148748) produced by using GMP guidelines. GMP small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. Butyzamide is an orally active activator of Mpl, a thrombopoietin (TPO) receptor. Butyzamide increases the phosphorylation level of JAK2, STAT3, STAT5 and MAPK. Butyzamide increases the level of platelets in mouse xenotransplantation assay.
    Butyzamide (GMP)
  • HY-159799
    p38α inhibitor 5
    Inhibitor 98.69%
    p38α inhibitor 5 (compound 1) is a PROTAC-type target protein ligand targeting p38 and can be used to synthesize NR-11c (HY-159798).
    p38α inhibitor 5
  • HY-N0854
    Alisol F
    Inhibitor 99.89%
    Alisol F is a protostane-type triterpenoid with anti-inflammatory and anti-hepatitis B virus activities. Alisol F inhibits LPS (HY-D1056)-induced phosphorylation of ERK, JNK, p38, STAT3 and NF-κB (p65), suppresses the production of NO, IL-6, TNF-α and IL-1β, and also downregulates the levels of iNOS and COX-2. Alisol F reduces the serum alanine aminotransferase and aspartate aminotransferase levels in mice with acute liver injury and ameliorates their liver pathological damage.
    Alisol F
  • HY-18260S2
    Bisphenol A-13C12
    Bisphenol A-13C12 is the 13C-labeled Bisphenol A (HY-18260). Bisphenol A is a phenolic, organic synthetic compound widely used in the production of polycarbonate plastics and epoxy resins. Bisphenol A is a reproductive, developmental, and systemic toxicant, often classified as an endocrine-disrupting compound (EDC). Bisphenol A is associated with many diseases, including cancers, cardiovascular diseases, respiratory diseases, diabetes, kidney diseases, obesity, and reproductivedisorders.
    Bisphenol A-<sup>13</sup>C<sub>12</sub>
  • HY-111431AR
    p-Cresyl sulfate potassium (Standard)
    Activator
    p-Cresyl sulfate (potassium) (Standard) is the analytical standard of p-Cresyl sulfate (potassium). This product is intended for research and analytical applications. p-Cresyl sulfate (p-Tolyl sulfate) potassium is a uremic toxin, that can cause renal damage and dysfunction. p-Cresyl sulfate potassium shows antiproliferation activity. p-Cresyl sulfate potassium increases the protein expression of HIF-1α and VHL, decreases the protein expression of HIF-2α. p-Cresyl sulfate potassium induces epithelial-mesenchymal transition (EMT). p-Cresyl sulfate potassium activates the JNK and p38 MAPK signaling pathways.
    p-Cresyl sulfate potassium (Standard)
  • HY-P3012
    Cathepsin G
    Activator
    Cathepsin G is a pH-dependent serine protease. Cathepsin G hydrolyzes diverse synthetic and protein substrates and remodels extracellular matrix. Cathepsin G exerts immunomodulatory effects via recruiting phagocytes, enhancing T cell motility, activating ERK1/2 and p38 MAPK signaling, and mediating PKCζ membrane translocation. Cathepsin G regulates inflammatory responses by cleaving inflammatory mediators. Cathepsin G participates in vascular regulation by converting angiotensin I to angiotensin II. Cathepsin G induces PAR4-dependent platelet activation, facilitates platelet-neutrophil aggregation, and mediates VITT-related NETosis, thrombus formation. Cathepsin G can be used for the research of immune thrombotic thrombocytopenia, cardiovascular disease, and select autoimmune and inflammatory diseases.
    Cathepsin G
  • HY-N2911
    Auriculasin
    Activator 98.58%
    Auriculasin is an anticancer agent that inhibits VEGFR2, PI3K/AKT/mTOR, MAPK. Auriculasin can inhibit cell proliferation, induce cell apoptosis, and inhibit angiogenesis, and promotes mitochondrial oxidative stress and ferroptosis. Auriculasin is also active at the cannabinoid receptor CB1 with an IC50 of 8.92 μM. Auriculasin can be used in cancer research, especially related diseases such as prostate cancer and non-small cell lung cancer, as well as research on the development of anti-angiogenic drugs.
    Auriculasin
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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