Proton Pump Inhibitor

Bafilomycin A1 (BafA1) is a specific and reversible inhibitor of vacuolar H⁺-ATPase (V-ATPase) with IC₅₀ values of 4-400 nmol/mg. Bafilomycin A1, a macrolide antibiotic, is also used as an autophagy inhibitor at the late stage. Bafilomycin A1 blocks autophagosome-lysosome fusion and inhibits acidification and protein degradation in lysosomes of cultured cells. Bafilomycin A1 induces apoptosis.

Concanamycin A (Folimycin; Antibiotic X 4357B) is a macrolide antibiotic, a vacuolar type H⁺-ATPase (V-ATPase) inhibitor. Concanamycin A is also an inhibitor of lysosomal acidification, can be used to T cell-mediated inflammation research^-.

Omeprazole (H 16868) is an orally active H⁺,K⁺-ATPase inhibitor and a proton pump inhibitor. Omeprazole competitively inhibits CYP2C19, CYP3A4, and CYP2C9 activity. Omeprazole inhibits gastric acid secretion and can be used for acid-related gastrointestinal disorders. Omeprazole inhibits pancreatic cancer cell proliferation, induces apoptosis, autophagosome accumulation (elevated LC3-I and LC3-II levels), oxidative stress, and cytogenetic imbalance, modulates lysosomal transport, reduces inflammatory cytokines. Omeprazole alters small intestinal morphology and magnesium absorption, and induces gastric mucosa morphologic changes. Omeprazole aslo has neuroprotective and antibacterial effects.

Abscisic acid ((S)-(+)-Abscisic acid), an orally active phytohormone in fruits and vegetables, is an endogenously produced mammalian hormone. Abscisic acid is a growth inhibitor and can regulate many aspects of plant growth and development. Abscisic acid inhibits proton pump (H⁺-ATPase) and leads to the plasma membrane depolarization in a Ca²⁺-dependent manner. Abscisic acid, a LANCL2 natural ligand, is a potent insulin-sensitizing compound and has the potential for pre-diabetes, type 2 diabetes and metabolic syndrome.

Lansoprazole (AG 1749) is an orally active proton pump inhibitor which prevents the stomach from producing acid. Lansoprazole (AG 1749) is a potent brain penetrant neutral sphingomyelinase (N-SMase) inhibitor (exosome inhibitor).

Concanamycin A (purity≥90%) (Antibiotic X 4357B) is a macrolide antibiotic, a vacuolar type H⁺-ATPase (V-ATPase) inhibitor. Concanamycin A (purity≥90%) is also an inhibitor of lysosomal acidification, can be used to T cell-mediated inflammation research^-.

A88696C is a gastric H⁺/K⁺ ATP-ase inhibitor with a pig IC₅₀ of 59 μM. A88696C inhibits gastric ATP-ase activity.

Zinc Pyrithione is an antifungal and antibacterial agent disrupting membrane transport by blocking the proton pump. Zinc Pyrithione is also a copper ionophore that delivers copper into cells and is a useful tool for studying cuproptosis.

2-PPA is a lysosomal potassium and proton channel TMEM175 pore blocker. 2-PPA binds at a TMEM175 pore site to occlude potassium and proton ion permeation pathways. 2-PPA increases lysosomal macromolecule catabolism, accelerates macropinocytosis. 2-PPA binds to hepatic protein in covalent. 2-PPA can be used for the research of Parkinson's disease.

Vonoprazan Fumarate (TAK-438), a proton pump inhibitor (PPI), is a potent and orally active potassium-competitive acid blocker (P-CAB), with antisecretory activity. Vonoprazan Fumarate inhibits H⁺,K⁺-ATPase activity in porcine gastric microsomes with an IC₅₀ of 19 nM at pH 6.5. Vonoprazan Fumarate is developed for the research of acid-related diseases, such as gastroesophageal reflux disease and peptic ulcer disease.

Chebulinic acid is a potent natural inhibitor of M. tuberculosis DNA gyrase, also can inhibit SMAD-3 phosphorylation, inhibit H+ K+-ATPase activity.

(R)-Lansoprazole is the R enantiomer of Lansoprazole, Lansoprazole (AG 1749) is an orally active proton pump inhibitor which prevents the stomach from producing acid. Lansoprazole (AG 1749) is a potent brain penetrant neutral sphingomyelinase (N-SMase) inhibitor (exosome inhibitor).

Tenatoprazole (TU-199) is an orally active imidazopyridine-based proton pump inhibitor with a prolonged plasma half-life. Tenatoprazole inhibits hog gastric H⁺/K⁺-ATPase activity with an IC₅₀ of 6.2 μM. Tenatoprazole blocks the interaction of ubiquitin with the ESCRT-1 factor Tsg101, inhibits production of several enveloped viruses, including EBV.

Omeprazole (H 16868) sodium is an orally active H⁺,K⁺-ATPase inhibitor and a proton pump inhibitor. Omeprazole sodium competitively inhibits CYP2C19, CYP3A4, and CYP2C9 activity. Omeprazole sodium inhibits gastric acid secretion and can be used for acid-related gastrointestinal disorders. Omeprazole sodium inhibits pancreatic cancer cell proliferation, induces apoptosis, autophagosome accumulation (elevated LC3-I and LC3-II levels), oxidative stress, and cytogenetic imbalance, modulates lysosomal transport, reduces inflammatory cytokines. Omeprazole sodium alters small intestinal morphology and magnesium absorption, and induces gastric mucosa morphologic changes. Omeprazole sodium aslo has neuroprotective and antibacterial effects.

Esomeprazole ((S)-Omeprazole) is a potent and orally active proton pump inhibitor and reduces acid secretion through inhibition of the H⁺, K⁺-ATPase in gastric parietal cells. Esomeprazole has the potential for symptomatic gastroesophageal reflux disease research.

Pantoprazole sodium (BY10232 sodium) is an orally active and potent proton pump inhibitor (PPI). Pantoprazole sodium, a substituted benzimidazole, is a potent H⁺/K⁺-ATPase inhibitor with an IC₅₀ of 6.8 μM. Pantoprazole sodium improves pH stability and has anti-secretory, anti-ulcer activities. Pantoprazole sodium significantly increased tumor growth delay combined with Doxorubicin (HY-15142).

Rabeprazole (LY307640) is a second-generation proton pump inhibitor (PPI) that irreversibly inactivates gastric H⁺/K⁺-ATPase. Rabeprazole induces apoptosis. Rabeprazole acts as an uridine nucleoside ribohydrolase (UNH) inhibitor with an IC₅₀ of 0.3 μM. Rabeprazole can be used for the research of gastric ulcerations and gastroesophageal reflux.

Thonzonium bromide is an antibacterial agent that is structurally similar to Farnesol (HY-Y0248A). Thonzonium bromide is also a monocationic surface-active agent, which inhibits RANKL-induced osteoclast formation and bone resorption in vitro and prevents LPS-induced bone loss in vivo. Thonzonium bromide inhibits proton transport in a dose-dependent manner (EC₅₀=69 μM).

Pantoprazole (BY10232) is an orally active and potent proton pump inhibitor (PPI). Pantoprazole, a substituted benzimidazole, is a potent H⁺/K⁺-ATPase inhibitor with an IC₅₀ of 6.8 μM. Pantoprazole improves pH stability and has anti-secretory, anti-ulcer activities. Pantoprazole significantly increased tumor growth delay combined with Doxorubicin (HY-15142).

Ilaprazole (IY-81149) is an orally active proton pump inhibitor. Ilaprazole irreversibly inhibits H⁺/K⁺-ATPase in a dose-dependent manner with an IC₅₀ of pump inhibitory activity of 6 μM in rabbit parietal cell preparation. Ilaprazole is used for the research of gastric ulcers. Ilaprazole is also a potent TOPK (T-lymphokine-activated killer cell-originated protein kinase) inhibitor.