cox-2,inos

N-tert-butyl-α-Phenylnitrone ((Z)-N-benzylidene-2-Methylpropan-2-aMine oxide) inhibits COX2 catalytic activity. N-tert-butyl-α-Phenylnitrone((Z)-N-benzylidene-2-Methylpropan-2-aMine oxide) possesses potent reactive oxygen species scavenging, anti-inflammatory, neuroprotective, anti-aging, and anti-diabetic activities, and can penetrate the blood-brain barrier.

Hederagenin (Hederagenol) is a triterpenoid saponin inhibiting LPS-stimulated expression of iNOS, COX-2, and NF-κB.

Ginsenoside C-K (Ginsenoside K) is a bacterial metabolite of G-Rb1 exhibiting anti-inflammatory effects by reducing iNOS and COX-2.

Cyclo(L-Pro-L-Val), a 2,5-diketopiperazine extracted from the fruits of Mycobacterium chiliolyticum AZ2 and Mycobacterium leprae, possesses anti-inflammatory activity and virulence activity against phytopathogenic microorganisms (e.g., R. fascians LMG 3605) and inhibits Gram-positive plant pathogens.Cyclo(L-Pro-L-Val) significantly inhibited IKKα phosphorylation and IκBα and NF-κB activation as well as iNOS and COX-2 activation in a concentration Cyclo(L-Pro-L-Val) significantly inhibited the phosphorylation of IKKα, IKKβ, IκBα, and NF-κB, as well as the activation of iNOS and COX-2 in a concentration-dependent manner, and is a potential therapeutic agent for the treatment of inflammation-related diseases.

Ergolide, a sesquiterpene lactone extracted from the dried flowers of Inula Britannica, effectively hinders the expression of inducible nitric oxide synthase and cyclo-oxygenase-2 in RAW 264.7 macrophages by deactivating NF-κB.

Cauloside C is a natural triterpenoid glycoside with anti-inflammatory activity, inhibiting iNOS and pro-inflammatory cytokines (e.g., TNF-α, IL-1β, IL-6, COX-2).

Sabialimon P (compound 16), with an IC50 of 18.12 μM, functions as a NO release inhibitor and exhibits anti-inflammatory properties. It effectively diminishes the secretion of TNF-α, iNOS, IL-6, and NF-κB, and suppresses the expression of COX-2 and NF-κB/p65 in LPS-induced RAW264.7 cells.

COX-2-IN-48 (5-25) serves as an inhibitor of COX-2, exhibiting an IC50 of 51.7 nM against human COX-2. It displays anti-inflammatory and analgesic effects in various rodent models through inhibition of the NF-κB pathway. COX-2-IN-48 (5-25) inhibits the degradation of IκB, phosphorylation and nuclear translocation of NF-κB p65, and the expression of COX-2 and iNOS.

Neuroprotective agent 5 (compound 28) acts as a brain-penetrating agent with anti-neuroinflammatory, antioxidant, and neuroprotective properties. It exhibits potent inhibition of nitric oxide (NO) with an EC50 of 0.49 μM and suppresses the release of pro-inflammatory mediators PGE2 and TNF-α. Additionally, it downregulates the expression of iNOS and COX-2 proteins, facilitating the polarization of BV-2 cells from a pro-inflammatory M1 phenotype to an anti-inflammatory M2 phenotype. Neuroprotective agent 5 also dose-dependently inhibits acetylcholinesterase (AChE) activity and the aggregation of Aβ42. This compound is useful for research into Alzheimer's disease.

Neral, a monoterpenoid compound, exhibits anti-inflammatory and anticancer activities. It inhibits TNF-α and IL-6, along with inflammatory mediators such as pro-IL-1β, iNOS, COX-2, and NLRP-3.

COX-2/15-LOX-IN-6 (Compound 5l) is a dual inhibitor of COX-2 and 15-LOX with IC50 values of 0.201 μM and 11.723 μM, respectively. In serum, it suppresses the expression of PGE, TNF-α, IL-6, and iNOS, and demonstrates anti-inflammatory activity in a carrageenan-induced rat edema model.

RGS10 modulator-1 (compound 15) is an effective regulator of RGS10. It significantly reverses IFNγ-induced expression of both RGS10 protein and mRNA, as well as COX-2 mRNA and iNOS expression triggered by IFNγ.

BPD is a COX-2 and TAK1-NF-κB inhibitor with an IC50 of 18.5 μM for COX-2. It suppresses the expression of iNOS, TNF-α, IL-6, and IL-1β at the transcriptional level. BPD possesses anti-inflammatory properties and can inhibit carrageenan-induced paw edema as well as LPS-induced septic death.

COX-2-IN-51 (E25) is a potent COX-2 inhibitor with an IC50 of 70.7 nM. It significantly suppresses LPS-induced release of NO and PGE2, the expression of COX-2 and iNOS, and the activation of the NF-κB pathway. Displaying anti-inflammatory and analgesic effects in various mouse models through NF-κB pathway inhibition, COX-2-IN-51 has lower gastrointestinal side effects compared to Indomethacin.

STAT1/3-IN-1 (Compound 6k) is an inhibitor of STAT1/3 phosphorylation. It prevents the phosphorylation and nuclear translocation of STAT1/3. Additionally, STAT1/3-IN-1 inhibits the inflammatory enzymes iNOS and COX-2. This compound exhibits anti-inflammatory properties by reducing pro-inflammatory cytokines, such as IL-1β, IL-6, and TNF-α, without significant cytotoxicity.

NLRP3-IN-69 (Compound 23) inhibits the activation of NF-κBp65 and the formation of the NLRP3 inflammasome. It suppresses the overexpression of IL-1β, iNOS, and COX-2 induced by LPS, and inhibits the production of NO (IC50=5.66 μM), thereby demonstrating anti-inflammatory activity.

Nitric oxide production-IN-11k is a compound that inhibits TLR4, JNK, and NF-κB signaling pathways. It suppresses nitric oxide (NO) production in LPS-stimulated RAW264.7 cells, with an IC₅₀ of 23.2 µM. By downregulating TLR4 expression and reducing the phosphorylation level of JNK, Nitric oxide production-IN-11k inhibits the activation of NF-κB, thereby blocking the transcription of inflammation-related genes. This leads to decreased expression of iNOS and COX-2, and consequently reduces the production of inflammatory mediators such as NO, PGE₂, and TNF-α, exerting anti-inflammatory effects. Nitric oxide production-IN-11k shows potential application value in the study of rheumatoid arthritis and other inflammatory diseases.

BS-153 is a novel synthetic oxazolidinone drug that exhibits anti-inflammatory effects by blocking the activation of the NF-κB/PKCθ pathway. It can suppress the expression levels of iNOS, COX-2, and pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6) in LPS-stimulated RAW264.7 cells.

iNOS/COX-2-IN-1 (Compound 12e) is an inhibitor of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS). By inhibiting the NF-κB and MAPKs signaling pathways, iNOS/COX-2-IN-1 exhibits anti-inflammatory effects.

Neuroprotective agent 11 (Compound 1a) is an orally active polyphenolic compound that offers significant protection against cerebral ischemia. Its primary activities include inhibiting neuronal inflammation and apoptosis, reducing cerebral infarct size, and improving behavioral symptoms in mice with cerebral ischemia. The mechanism involves downregulating inflammatory factors (iNOS, COX-2) and apoptotic proteins (cleaved-Caspase3, p53). Neuroprotective agent 11 is applicable for research in ischemia-related brain diseases, such as ischemic stroke.

Anti-inflammatory agent 109 (Compound 2m) is an anti-inflammatory compound. It directly interacts with p65, reducing the abnormal activation of the NF-κB pathway. This agent significantly inhibits the release of key pro-inflammatory mediators, such as IL-1β, COX-2, and iNOS. Additionally, Anti-inflammatory agent 109 offers substantial protection against LPS-induced acute liver injury in septic mice.

HDAC6-IN-71 (Compound 24) is an HDAC6 inhibitor with IC50 values of 13.68 nM for HDAC6 and 443.12 nM for HDAC1. It effectively suppresses NO production in mouse macrophages with an IC50 of 2.31 μM. By inhibiting the HDAC6-NF-κB signaling pathway, HDAC6-IN-71 reduces the phosphorylation levels of IκB-α and IKK-α/β, and inhibits the expression of downstream inflammatory proteins COX-2 and iNOS. Additionally, it significantly alleviates ulcerative colitis in mice.

Madecassic acid (L-fucopyranose) is extracted from the whole herb of Centella asiatica.

Dehydroevodiamine (DHED), a constituent of Evodia rutaecarpa, has various biological effects such as hypotensive, negative chronotropic, ion channel depressant, inhibition of nitric oxide production and cerebral blood flow enhancing activities.