obstructive

IA-Alkyne (Iodoacetamide-alkyne) is a TRP channel (TRPC) agonist. IA-Alkyne can be used to develop an isotopically tagged probe for quantitative cysteine-reactivity profiling. It also has the potential for the study of respiratory infection.

Arformoterol Tartrate ((R,R)-Formoterol tartrate) is the tartrate salt of arformoterol. Arformoterol is a long-acting beta-2 adrenergic agonist with bronchodilator activity[2].

Talniflumate (Somalgen) is a calcium-activated chloride channel (hCLCA1/mCLCA3) blocker that reduces mucin synthesis and releases in animal models and cell culture. It possesses anti-inflammatory actions via inhibition of Cox (cyclooxygenase) and inhibits Cl-/HCO3- exchange activity. It also increases survival in a cystic fibrosis mouse model of the distal intestinal obstructive syndrome.

GSK256066 is a selective PDE4B(equal affinity to isoforms A-D) inhibitor with IC50 of 3.2 pM, >380, 000-fold selectivity versus PDE1/2/3/5/6 and >2500-fold selectivity against PDE4B versus PDE7.Phase 2.

Cilomilast (SB-207499) is a potent PDE4 inhibitor with an IC50 of approximately 110 nM, demonstrating anti-inflammatory activity and minimal central nervous system effects. Phase 3.

Theophylline (1,3-Dimethylxanthine) is a methyl xanthine derivative from tea with diuretic, smooth muscle relaxant, bronchial dilation, cardiac, and central nervous system stimulant activities. It inhibits the 3', 5'-cyclic nucleotide phosphodiesterase that degrades cyclic AMP, thus potentiating the actions of agents that act through adenylyl cyclases and cyclic AMP.

Ipratropium bromide monohydrate (Ipratropium bromide hydrate) is a muscarinic antagonist structurally related to ATROPINE but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic.

Theophylline monohydrate (Quibron) appears to inhibit phosphodiesterase and prostaglandin production, regulate calcium flux and intracellular calcium distribution, and antagonize adenosine. Theophylline monohydrate is a natural alkaloid derivative of xanthine isolated from the plants Camellia sinensis and Coffea arabica. Physiologically, this agent relaxes the bronchial smooth muscle, produces vasodilation (except in cerebral vessels), stimulates the CNS, stimulates the cardiac muscle, induces diuresis, and increases gastric acid secretion; it may also suppress inflammation and improve contractility of the diaphragm.

Pidotimod is a synthetic dipeptide with immunomodulatory properties.

Ipratropium Bromide (Sch 1000) is a synthetic anticholinergic agent that is used as an inhalant for treatment of acute bronchospasm due to chronic bronchitis and emphysema.

Enprofylline (Enprofilina), a bronchodilator, acts primarily as a competitive nonselective phosphodiesterase inhibitor. Enprofylline is used in asthma, chronic obstructive pulmonary disease, and in the management of sickle cell disease, diabetic neuropathy, and cerebrovascular insufficiency.

AZD-4818 (CCR1 antagonist) is a chemokine CCR1 antagonist for the treatment of chronic obstructive pulmonary disease.

Acanthoside B is a lignan with anti-inflammatory and anti-amnesic effects. Acanthoside B can be used for studies about Alzheimer's disease and lung inflammation.

Lipopolysaccharides (LPS), derived from Escherichia coli O55:B5, are essential components of the outer membrane of Gram-negative bacteria. Composed of lipid A, a core oligosaccharide, and an O-specific polysaccharide, LPS exhibits strong immunogenicity. It activates immune cells via the TLR4 receptor, induces chemotactic cell migration and cytokine secretion, and helps maintain the integrity of the bacterial outer membrane, protecting against bile salts and lipid-based antibiotics. LPS is commonly used to establish inflammatory models, including arthritis, chronic obstructive pulmonary disease (COPD), acute respiratory distress syndrome (ARDS), and gastrointestinal disease models.

(R)-MMP-408 is an isomer of MMP-408, which is an effective MMP-12 inhibitor with an IC₅₀ of 2 nM against human MMP-12. (R)-MMP 408 can influence the epithelial-mesenchymal transition (EMT) process in nasal epithelial cells and is suitable for use in research on chronic obstructive pulmonary disease (COPD) and chronic sinusitis.

Nerandomilast (BI 1015550) is an orally active PDE4B inhibitor with IC50 of 7.2 nM. BI 1015550 has potential applications in inflammation, allergic diseases, pulmonary fibrosis and chronic obstructive pulmonary disease (COPD) with a good safety profile.

PDE IV-IN-1 is a potent phosphodiesterase 4 (PDE4) inhibitor with anti-inflammatory activity for the treatment of asthma, chronic obstructive pulmonary disease and other inflammatory diseases, and is a potential compound for the study of depression.

IQB-782 is a mucolytic agent with mucolytic expectorant activity.IQB-782 inhibits thrombin-activating fibrinolytic inhibitor (TAFI), protects rats from tobacco smoke-induced respiratory obstruction, reduces the viscosity of gastric mucin suspensions in vitro, and may be useful in studies of obstructive lung disease.IQB-782 has been shown to reduce the viscosity of gastric mucin suspensions in vitro.

TD-5471 hydrochloride is a selective and potent long-acting human β2-adrenergic receptor agonist for the treatment of chronic obstructive pulmonary disease (COPD).

ZD-0892 is a selective and potent inhibitor of neutrophil elastase, targeting human neutrophil elastase and porcine pancreatic elastase with Kis of 6.7 nM and 200 nM, respectively.

Nemiralisib(GSK-2269557 free base) is an orally available, potent and specific PI3Kδ inhibitor with a pKi of 9.9.Nemiralisib is used for the treatment of respiratory diseases including chronic obstructive pulmonary disease.

SSR69071 is a potent, orally active, and selective inhibitor of neutrophil elastase, displaying higher affinity for human elastase (Ki = 0.0168 nM) compared to rat (Ki = 3 nM), mouse (Ki = 1.8 nM), and rabbit (Ki = 58 nM) elastases [2]. It reduces myocardial infarct size following ischemia-reperfusion injury [1] and has potential for treating chronic obstructive pulmonary diseases, asthma, emphysema, cystic fibrosis, and various inflammatory diseases.

ASM-024, a potent nicotinic receptor agonist, is a small molecule synthetic piperazine compound that promotes different targets and signaling pathways of β2-adrenergic receptors mediating smooth muscle relaxation, and is a potential compound for the treatment of asthma and chronic obstructive bronchitis with anti-inflammatory activity.

Bedoradrine sulfate (MN-221 sulfate) is a novel, highly selective β2-adrenoceptor agonist for the treatment of asthma and chronic obstructive pulmonary disease.