IL Receptor

Diacerein is a potent IL-1 inhibitor that functions by reducing the production of IL-1 converting enzyme, thereby inhibiting the activation of IL-1β and its downstream signaling pathways. This compound exhibits significant anti-inflammatory and anti-rheumatic properties, making it useful for various research applications, including studies on osteoarthritis and the management of bronchospasm and airway inflammation in asthmatic models. Diacerein is recognized as a slow-acting drug for symptomatic relief of osteoarthritis, facilitating insights into long-term therapeutic strategies.

Epinastine is a selective histamine H1 receptor antagonist, known for its effectiveness as a mast cell stabilizer. It exhibits high affinity for neuronal octopamine receptors in various insects, demonstrating potential roles in modulating immune responses. Epinastine also inhibits pro-inflammatory cytokines such as TARC, IL-8, and IL-4, making it valuable for research into allergic diseases and anti-cancer immunity mechanisms. Its ability to reduce scratching behavior and vascular permeability further underscores its relevance in studying allergic and inflammatory conditions.

SDZ 224-015 is a potent inhibitor of the interleukin-1 beta (IL-1β) converting enzyme and caspase-1, demonstrating significant inhibitory activity. This compound exhibits anti-COVID-19 properties through its interaction with the main protease (Mpro), with an IC50 value of 30 nM. SDZ 224-015 is suitable for research applications focusing on inflammation, cytokine signaling, and viral pathogenesis.

Icotrokinra (JNJ-77242113) is an orally available and selective antagonist of the interleukin-23 (IL-23) receptor. It potently inhibits IL-23-induced STAT3 phosphorylation in peripheral blood mononuclear cells (IC₅₀ = 5.6 pM) and suppresses IL-23-induced interferon-γ (IFN-γ) production in natural killer (NK) cells (IC₅₀ = 18.4 pM). Icotrokinra also demonstrates anti-inflammatory activity in a rat TNBS-induced colitis model. It is a promising therapeutic candidate for the study and treatment of inflammatory conditions such as psoriasis, psoriatic arthritis, and inflammatory bowel disease (IBD).

Raleukin (AMG-719) is a recombinant, non-glycosylated human interleukin-1 receptor (IL-1R) antagonist. It functions by competitively inhibiting the binding of interleukin-1 (IL-1) to its receptor, thereby blocking IL-1–mediated pro-inflammatory signaling. As one of the first biological agents developed to inhibit IL-1 activity, Raleukin has potential applications in the treatment of inflammatory and autoimmune diseases.

LMT-28 is an orally active and the first synthetic interleukin-6 (IL-6) inhibitor that acts by directly binding to gp130, a key signal-transducing component of the IL-6 receptor complex. It selectively inhibits IL-6-induced phosphorylation of STAT3, JAK2, and gp130, exhibiting low toxicity. LMT-28 is a promising compound for research into IL-6-mediated inflammatory and autoimmune diseases.

6-Demethoxytangeretin is a flavonoid compound isolated from *Citrus reticulata* with demonstrated anti-inflammatory and anti-allergic properties. It inhibits IL-6 production and the expression of related genes in human mast cells by modulating the ALK and MAPK signaling pathways. Additionally, 6-Demethoxytangeretin enhances CRE-mediated transcription in hippocampal neurons, indicating potential neuroregulatory effects.

Lobeglitazone is a novel thiazolidinedione-class compound and an orally active dual agonist of peroxisome proliferator-activated receptors (PPARs), with EC₅₀ values of 137.4 nM for PPARγ and 546.3 nM for PPARα. In addition to its metabolic effects, Lobeglitazone functions as an inhibitor of multiple pro-inflammatory and pro-fibrotic signaling pathways, including ERK, JNK, Smad, and NF-κB. Lobeglitazone exhibits a broad range of pharmacological activities, including anti-inflammatory, anti-diabetic, anti-fibrotic, and anti-atherosclerotic effects. These properties make it a promising candidate for therapeutic research in metabolic syndrome, type 2 diabetes, cardiovascular disease, and fibrosis-related conditions.

Anti-inflammatory agent 35 (compound 5a27) is an orally active curcumin analogue that exhibits potent anti-inflammatory activity. It exerts its effects by blocking mitogen-activated protein kinase (MAPK) signaling and inhibiting the nuclear translocation of the NF-κB subunit p65, thereby suppressing key inflammatory pathways. Additionally, compound 5a27 reduces neutrophil infiltration and the production of pro-inflammatory cytokines. In vivo, it significantly attenuates lipopolysaccharide (LPS)-induced acute lung injury (ALI), highlighting its potential as a therapeutic candidate for inflammatory and respiratory disorders.

Lysophosphatidylcholines (LPCs) are orally active lysolipids and key components of oxidized low-density lipoprotein (oxLDL). They are bioactive molecules known to induce cellular injury, promote the production of pro-inflammatory cytokines such as interleukin-1β (IL-1β), and trigger apoptosis. LPCs play a significant role in the pathophysiology of various inflammatory conditions and have been implicated in the progression of sepsis by amplifying inflammatory responses. Due to these properties, LPCs are actively studied in the context of inflammation, cardiovascular disease, and sepsis-related research.

Immuno modulator-1 is a potent inhibitor of TNFα and IL-2, displaying IC50 values of 4.7 nM and 26 nM, respectively, in human peripheral blood mononuclear cells (hPBMC). This compound is valuable for investigating immune response modulation and inflammatory pathways. Additionally, Immuno modulator-1 demonstrates a hERG potassium channel blocking effect, exhibiting a 20% inhibitory percentage at a concentration of 3 μM, making it relevant for studies involving cardiac safety profiles.

IL13Rα2 D1 is a potent inhibitor of the IL-13/IL13Rα2 signaling pathway. It effectively suppresses IL-13-induced cellular processes, including adhesion, migration, invasion, and proliferation. Additionally, IL13Rα2 D1 inhibits the phosphorylation of key signaling proteins such as FAK, Src, AKT, and ERK1/2, as well as the expression of matrix metalloproteinases (MMPs). This compound is valuable for research focused on cancer biology, particularly in the context of colorectal cancer.

(R)-5,7-Dimethoxyflavanone acts as an inhibitor of nitric oxide (NO), tumor necrosis factor-alpha (TNF-α), and interleukin-12 (IL-12), demonstrating significant anti-inflammatory properties. In biological assays, this compound exhibits potent antimutagenic activity, effectively reducing MeIQ-induced mutagenesis in the Ames test using S. typhimurium strains TA100 and TA98. Its capacity to modulate inflammatory mediators makes it a valuable tool in research focused on inflammation and mutagenesis.

IRBP (651-670) human, mouse is an epitope derived from the conserved region of interphotoreceptor retinoid binding protein (IRBP), functioning primarily as a uveitis-inducing agent. This specific fragment has been shown to elevate levels of pro-inflammatory cytokines, including IL-1β, IL-6, TNFα, IL-17A, and IL-17F, within ocular tissues. Due to its conservation across human, mouse, and bovine species, IRBP (651-670) is valuable in the study of experimental autoimmune uveitis and related inflammatory processes in ocular research.

Xelafaslatide is a Fas receptor antagonist that effectively inhibits Fas receptor signaling, thereby blocking downstream apoptosis and inflammatory pathways. This compound demonstrates significant potential in suppressing neuroinflammation and microglial activation in glaucoma models, offering protection to retinal ganglion cells and preventing axonal degeneration. Xelafaslatide is relevant for research focused on glaucoma and related neurodegenerative conditions.

Dazupegleukin is an interleukin-2 derivative that functions primarily as an immunomodulator. It exhibits antineoplastic properties, making it a valuable candidate for research focused on cancer immunotherapy. The compound can enhance T-cell proliferation and activation, thus playing a significant role in studies aimed at understanding and manipulating immune responses against tumors. Its applications extend to exploring novel therapeutic strategies in oncology.