COX Inhibitor

Indomethacin (Indometacin) sodium hydrateis a orally active and BBB-permeable COX1/2 inhibitor with IC₅₀ values of 18 nM and 26 nM for COX-1 and COX-2, respectively. Indomethacin sodium hydrateis has anticancer activity and anti-infective activity. Indomethacin sodium hydrateis can be used for cancer, inflammation and viral infection research.

Rofecoxib is a potent, specific and orally active COX-2 inhibitor, with IC₅₀s of 26 and 18 nM for human COX-2 in human osteosarcoma cells and Chinese hamster ovary cells, with a 1000-fold selectivity for COX-2 over human COX-1 (IC₅₀ > 50 μM in U937 cells and > 15 μM in Chinese hamster ovary cells).

Nimesulide is a selective COX-2 inhibitor, with IC₅₀s of 70 nM-70 μM in a time-dependent manner, but it shows no effect on COX-1 (IC₅₀ >100 μM). Nimesulide has potent anti-inflammatory, analgesic and antipyretic properties.

Terameprocol is an inhibitor targeting the Sp1 transcription factor, which can selectively inhibit the transcription of Sp1-dependent genes. Terameprocol exerts its effects by inhibiting Sp1-mediated gene transcription, such as reducing the expression of genes like CDC2, survivin and HMGB1, thereby arresting the cell cycle, inducing apoptosis, and suppressing the inflammatory response. Terameprocol exhibits anti-proliferative, pro-apoptotic, and anti-inflammatory activities and is currently mainly used in the research of diseases such as cancer and pulmonary arterial hypertension[1][2][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.

Sodium thiosulfate (Sodium hyposulfite) is an antioxidant. Sodium thiosulfate inhibits the expression of p-GSK-3β and β-catenin proteins, reduces IL-1β, COX-2, and Iba-1, and inhibits NFκB activation. Sodium thiosulfate promotes angiogenesis, inhibits inflammation, and improves acute lung injury. Sodium thiosulfate also exhibits anti-cancer activity against melanoma. Sodium thiosulfate also exerts renal protective effects. Sodium thiosulfate can be used in the research of osteoarthritis, brain inflammation, cancer (such as breast cancer, melanoma), and kidney disease.

γ-Tocopherol (D-γ-Tocopherol) is a potent cyclooxygenase (COX) inhibitor. γ-Tocopherol is a naturally occurring form of Vitamin E in many plant seeds, such as corn oil and soybeans. γ-Tocopherol possesses antiinflammatory properties and anti-cancer activity.

Ibuprofen-d₃ is a deuterium labeled Ibuprofen. Ibuprofen is a COX-1 and COX-2 inhibitor with IC50s of 13 μM and 370 μM.

Oxaprozin is an orally active and potent COX inhibitor, with IC₅₀ values of 2.2 μM for human platelet COX-1 and and 36 μM for IL-1-stimulated human synovial cell COX-2, respectively. Oxaprozin also inhibits the activation of NF-κB. Oxaprozin induces cell apoptosis. Oxaprozin shows anti-inflammatory activity. Oxaprozin-mediated inhibition of the Akt/IKK/NF-κB pathway contributes to its anti-inflammatory properties.

Fenofibric acid, an active metabolite of fenofibrate, is a PPAR activitor, with EC₅₀s of 22.4 μM, 1.47 μM, and 1.06 μM for PPARα, PPARγ and PPARδ, respectively; Fenofibric acid also inhibits COX-2 enzyme activity, with an IC₅₀ of 48 nM.

STAT1/3-IN-1 is a potent STAT1/3 inhibitor with potent anti-inflammatory effect. STAT1/3-IN-1 inhibits phosphorylation and nuclear translocation of STAT1/3 to modulate microglial inflammation, reduces LPS (HY-D1056)-induced pro-inflammatory cytokines (NO, IL-1β, IL-6, and TNF-α) and inflammatory mediators (iNOS, COX-2). STAT1/3-IN-1 exhibits low toxicity in mice. STAT1/3-IN-1 can be used for the research of neuroinflammation.

Naproxen sodium is a COX-1 and COX-2 inhibitor with IC₅₀s of 8.72 and 5.15 μM, respectively in cell assay.

Psoralidin is a dual inhibitor of COX-2 and 5-LOX, regulates ionizing radiation (IR)-induced pulmonary inflammation.Anti-cancer, anti-bacterial, and anti-inflammatory properties. Psoralidin significantly downregulates NOTCH1 signaling. Psoralidin also greatly induces ROS generation.

Salicin is a natural COX inhibitor.

Hydronidone is an orally active pyridine derivative. Hydronidone is an inhibitor of phosphodiesterase-4 (PDE4) and cyclo-oxygenase (COX) as well as TGF-β. Hydronidone induces mitochondrial dysfunction and triggers apoptosis. Hydronidone can be used for liver fibrosis, anti-inflammation and anti-cancer study.

Isofraxidin, a coumarin component from Acanthopanax senticosus, inhibits MMP-7 expression and cell invasion of human hepatoma cells. Isofraxidin inhibits the phosphorylation of ERK1/2 in hepatoma cells. Isofraxidin attenuates the expression of iNOS and COX-2, Isofraxidinalso inhibits TLR4/myeloid differentiation protein-2 (MD-2) complex formation.

Gamma-Mangostin is a novel competitive 5-hydroxytryptamine 2A (5-HT2A) receptor antagonist and potent epoxidase 2 (COX-2) inhibitor, as well as a transthyroxin protein (TTR) profibrosis inhibitor. Gamma-Mangostin binds to the thyroxine (T4)-binding sites and stabilized the TTR tetramer. Gamma-Mangostin inhibits [3^H] spiperone binding to cultured rat aortic myocytes (IC₅₀=3.5 nM) and reduces The perfusion pressure response of rat coronary artery to 5-HT2A (IC₅₀=0.32 μM). Gamma-Mangostin has anti-inflammatory, antibacterial, antioxidant and anticancer activities, and can be used in the study of metabolic disorders such as diabetes.

Ethyl Caffeate is a natural phenolic compound isolated from Bidens pilosa. Ethyl caffeate suppresses NF-κB activation and its downstream inflammatory mediators, inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and prostaglandin E₂ (PGE₂) in vitro or in mouse skin.

Methotrexate hydrate (Amethopterin hydrate; CL14377 hydrate; WR19039 hydrate) is an orally active antifolate (Antifolate). Methotrexate hydrate inhibits dihydrofolate reductase (DHFR), blocks tetrahydrofolate production, suppresses purine/pyrimidine synthesis and transmethylation, and causes intracellular accumulation of AICAR. Methotrexate hydrate promotes extracellular adenosine release, regulates the cytokine network, and inhibits the alarmin function of HMGB1. Methotrexate hydrate induces apoptosis and cytotoxicity, upregulates the expression of iNOS and COX-2, suppresses hippocampal neurogenesis, and induces pulmonary fibrosis. Methotrexate hydrate is used in the research of various immune and inflammation-related diseases such as arthritis, psoriasis, systemic lupus erythematosus, as well as pulmonary fibrosis and breast cancer.