p38 MAPK Inhibitor

PH-797804 is a ATP-competitive, selective p38α/p38β inhibitor (IC₅₀=26 nM and K_i=5.8 nM for p38α; K_i=40 nM for p38β) and does not inhibit JNK2.

VX-702 is a highly selective inhibitor of p38α MAPK, 14-fold higher potency against the p38α versus p38β.

Benzoylaconine (Benzoylaconitine) is an orally active monoester alkaloid found in the traditional Chinese medicine Aconitum carmichaelii. Benzoylaconine is an ACE2 agonist (EC₅₀: 1.5 μM) with antihypertensive and anti-heart failure effects. Benzoylaconine inhibits TLR-induced MAPK and NF-κB pathways to exert anti-inflammatory effects. Benzoylaconine upregulates the protein levels of P-gp, MRP2, and has anti-tumor effects.

Sappanone A is an orally active homoisoflavone found in sappan L. Sappanone A is a PDE4 and NF-κB inhibitor with anti-inflammatory and antioxidant effect. Sappanone A induces HO-1 expression through activation of Nrf2 pathway. Sappanone A also inhibits RANKL-induced osteoclastogenesis. Sappanone A has great potential in the research of inflammation-related and cardiovascular .

Vesencumab (MNRP-1685A) is IG1 antibody against neuropilin-1 (NRP-1). Vesencumab binds to NRP-1 and prevents the subsequent coupling of NRP-1 to VEGFR-2. Vesencumab has anti-angiogenic and anti-neoplastic activities. Vesencumab can be used in the research of metastatic solid tumors, including ovarian cancer.

Crocetin (Transcrocetin) is an aglycone of crocin. Crocetin is an orally active and brain-penetrant. Crocetin shows strong NMDA receptor affinity and channel opening activity. Crocetin can downregulate the proinflammatory cytokines and COX-2 exoression. Crocetin can inhibit apoptosis and activation of MAPK. Crocetin can delay delays brain and body aging. Crocetin can be used for the researches of cancer, neurological disease and inflammation, such as cervical cancer and ischemia.

Bakuchiol is a phytoestrogen that can be obtained from psoralen seeds. Bakuchiol has been proven to be a non-competitive inhibitor of multiple enzymes, including UDP-glucuronosyltransferase 2B7 (UGT2B7) and human carboxylesterase 2 (hCE2) , with IC₅₀s values of 40.9 μM and 7.28 μM, respectively. Bakuchiol exhibits significant research and application potential in areas such as anti-inflammatory, antibacterial, antitumor therapies, as well as drug metabolism regulation.

Cyclotraxin B is a BBB-penetrable and selective TrkB inhibitor. Cyclotraxin B inhibits BDNF-induced TrkB activity in a non-competitive manner, with an IC₅₀ of 0.30 nM. Cyclotraxin B has analgesic and anxiolytic effects.

Dehydrocostus Lactone ((-)-Dehydrocostus lactone) is a natural sesquiterpene that can be isolated from Saussurea lappa. Dehydrocostus Lactone has multiple activities such as anti-inflammatory, antibacterial, anti-tumor, and immunomodulatory effects. Dehydrocostus Lactone has an MIC of 2 µg/mL against Mycobacterium tuberculosis. Dehydrocostus Lactone can also inhibit the killing activity of cytotoxic T lymphocytes and induce apoptosis in tumor cells.

LC-2 is an orally active PROTAC-class degrader targeting KRAS^G12C and a MAPK inhibitor. LC-2 shows higher selectivity for KRAS^G12C than wild-type KRAS and other KRAS mutants. LC-2 covalently binds to KRAS^G12C via the MRTX849 (HY-130149) warhead, recruits the VHL E3 ligase to form a ternary complex, and induces ubiquitination and degradation of KRAS^G12C. Meanwhile, LC-2 inhibits the MAPK signaling pathway, reduces the phosphorylation levels of CRAF and AKT, thereby inducing apoptosis and suppressing cancer cell and tumor growth. LC-2 can be used for the research of KRAS^G12C-positive cancers, including non-small cell lung cancer and colorectal cancer.

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.

Eupalinolide B is a germ sesquiterpene. Eupalinolide B can be isolated from Eupatorium lindleyanum. Eupalinolide B induces Apoptosis, elevates ROS, promotes Autophagy. regulates GSK-3β/β-catenin, targets UBE2D3 and TAK1, activates ROS-ER-JNK, inhibits NF-κB and MAPKs. Eupalinolide B has anticancer activity against pancreatic cancer and liver cancer. Eupalinolide B relieves rheumatoid arthritis, acute lung injury, periodontitis, depression.

D-psicose is an orally active rare sugar. D-psicose inhibits p38-MAPK phosphorylation and MCP-1 expression. D-psicose inhibits the AGEs/RAGE/NF-κB pathway. D-psicose protects pancreatic β-islets, improves hyperglycemia and high-fat diet-induced non-alcoholic fatty liver disease.

RG100204 is a selective, orally available inhibitor of the aquaporin AQP9. RG100204 directly inhibits AQP9 channel function, preventing the transmembrane transport of water, glycerol, and H²O². RG100204 reduces the activation of the NLRP3 inflammasome and p38 MAPK signaling pathways, thereby alleviating inflammation and pyroptosis. RG100204 reduces multi-organ dysfunction in a mouse sepsis model and shows glucose-regulating effects in diabetic db/db mice.

SB 239063 is a potent, selective and orally active p38 MAPK inhibitor, exhibits an IC₅₀ of 44 nM for recombinant purified human p38α, with equipotent inhibitory activity against p38α and p38β. SB 239063 has no effect on p38γ or p38δ. With anti-asthma activity and also be used to enhance memory which is impaired due to aging or medical conditions, such as, AD. SB 239063 can penetrate the blood brain barrier (BBB).

Angelicin is a furanocoumarin compound that functions as an inhibitor of NF-κB and MAPK signaling pathways, exhibiting anti-inflammatory, antiviral, and antitumor activities. It suppresses the lytic replication of γ-herpesviruses, such as MHV-68, early during viral infection, potentially inhibiting RTA gene expression (IC₅₀=28.95 μM). Angelicin also mitigates inflammation by inhibiting the phosphorylation and nuclear translocation of NF-κB, and the phosphorylation of p38 and JNK. Furthermore, it induces apoptosis in neuroblastoma cells by downregulating anti-apoptotic proteins like Bcl-2, Bcl-xL, and Mcl-1, while activating caspase-9 and caspase-3.

Curcumenol ((+)-Curcumenol) is a natural compound with oral efficacy, exhibiting an IC₅₀ of 12.6 μM and a K_i of 10.8 μM against human CYP3A4. Curcumenol inhibits TNFα-induced phosphorylation/degradation of IκBα, phosphorylation/nuclear translocation of NF-κB p65, as well as the upregulation of MMP3, MMP9, MMP13, TRAF3, IL1RL1, TNFα and IL-1β. Curcumenol suppresses LPS-induced phosphorylation of Akt and p38 MAPK, as well as the production of pro-inflammatory mediators/proteins, and downregulates the SLC7A11/NF-κB/TGF-β pathway. Curcumenol binds to and inhibits the activation of Fyn and Lyn, blocks the function of downstream FcεRI signaling components, and reduces the release of allergic mediators/cytokines. Curcumenol upregulates the expression of KDM6B, and promotes chondrocyte proliferation and cartilage repair. Curcumenol induces ferroptosis and apoptosis, regulates the EMT process, and inhibits tumor growth and metastasis of triple-negative breast cancer. Curcumenol possesses anti-inflammatory, neuroprotective, antioxidant, antitumor, antiviral and hepatoprotective activities. Curcumenol can be used in research related to intervertebral disc degeneration, cancer, inflammation, central nervous system neurodegenerative diseases, allergic reactions and knee osteoarthritis.

Pexmetinib (ARRY-614) is an orally active dual Tie-2 and p38 MAPK inhibitor. Pexmetinib binds to Tie-2 and p38 MAPK in a "DFG-out" conformation, attenuates the phosphorylation of p38, inhibits STAT3 activation, reduces the promoter-binding activity of NFATc1, and decreases the expression of MMPs. Pexmetinib inhibits leukemia cell proliferation, abrogates TNF-α-mediated myelosuppression of healthy hematopoietic stem cells, stimulates hematopoiesis in primary myelodysplastic syndrome (MDS) samples, inhibits RANKL-induced osteoclast formation and bone resorption, and suppresses migration, invasion and induced osteolysis of breast cancer cells. Pexmetinib can be used in research related to myelodysplastic syndrome, acute myeloid leukemia and breast cancer-induced osteolysis.

Teneligliptin (MP-513) hydrobromide hydrate is an orally active and selective dipeptidyl peptidase 4 (DPP-4) inhibitor (IC₅₀s: 0.37 and 0.29 nM for the human and rat DPP-4, respectively). Teneligliptin hydrobromide hydrate improves blood glucose levels and can be used in researches related to type 2 diabetes mellitus.

Mianserin hydrochloride (Org GB 94) is an orally active H1 receptor antagonist. Mianserin hydrochloride can activate κ-opioid receptor and octopamine receptor. Mianserin hydrochloride increases ERK1/2 and CREB phosphorylation, and antagonizes full κ-opioid agonist and Dynorphin A (HY-P1333)-induced MAPK phosphorylation. Mianserin hydrochloride modulates social and exploratory behaviour, raises electroconvulsive thresholds. Mianserin hydrochloride can be used for the research of neurological disease, such as depression and epilepsy.