mrp4

Indican (Indoxyl-β-D-glucoside) is a natural protective compound that is used to protect the liver.

MK-571 sodium (L-660711 sodium salt) is a selective, orally active antagonist of the CysLT1 receptor. MK-571 sodium is a multidrug resistance protein-2 (ABCC2, Mrp2) inhibitor used to demonstrate the role of Mrp2 in the cellular efflux of drugs, xenobiotics, and their conjugates. MK-571 sodium can inhibit the synthesis of K-4′-O-GlcA (19.7 μM). MK571 dose-dependently inhibits the intracellular biosynthesis of all flavonol sulphates and glucuronides by Caco-2 cells. MK-571 sodium significantly inhibits phase-2 conjugation of kaempferol by cell-free extracts of Caco-2, and production of kaempferol-4′-O-glucuronide was competitively inhibited. In addition to inhibiting MRP2, MK571 is a potent inhibitor of enterocyte phase-2 conjugation.

Ceefourin 1 is a highly selective multidrug resistance protein 4 (MRP4) inhibitor.

PU 23 is an inhibitor of multidrug-resistant protein 4 (MRP4).

DM-4107 is a primary metabolite of Tolvaptan, primarily metabolized by the CYP3A4 enzyme in the liver. In SCHH cells, DM-4107 inhibits the human liver transport proteins NTCP, BSEP, MRP3, and MRP4, with IC50 values of 95.6, 119, 61.2, and 37.9 μM respectively, affecting bile acid transport. It is applicable for research on autosomal dominant polycystic kidney disease (ADPKD).

Estradiol 17-(β-D-glucuronide) (E217G) is an estrogen metabolite formed in the liver and subsequently excreted in bile.1It acts as a substrate of the multidrug resistance protein 2 (MRP2; Km= 75 μM), and through MRP2-mediated transport, functions as a cholestatic agent, decreasing bile flow.1,2In addition to binding to the MRP2 transport site, E217G has been shown to bind to an allosteric site that through positive cooperativity activates its own transportviaMRP2 and the transport of other MRP2 substrates, including the non-cholestatic estrogen metabolite, estradiol 3-(β-D-glucuronide) .2,3E217G has also been reported to be transported by MDR1, MRP1, MRP3, MRP4, MRP7, ABCG2 (a breast cancer resistance protein transporter), and the rat organic anion-transporting polypeptides 1-4.2 1.Loe, D.W., Almquist, K.C., Cole, S.P., et al.ATP-dependent 17β-estradiol 17-(β-D-glucuronide) transport by multidrug resistance protein (MRP). Inhibition by cholestatic steroidsThe Journal of Biological Chemisty271(16)9683-9689(1996) 2.Gerk, P.M., Li, W., and Vore, M.Estradiol 3-glucuronide is transported by the multidrug resistance-associated protein 2 but does not activate the allosteric site bound by estradiol 17-glucuronideDrug Metabolism and Disposition32(10)1139-1145(2004) 3.Gerk, P.M., Li, W., Megaraj, W., et al.Human multidrug resistance protein 2 transports the therapeutic bile salt tauroursodeoxycholateJournal of Pharmacology and Experimental Therapeutics320(2)893-899(2007)

BMS-986020 (AM152) is a selective LPA1 antagonist.

BMS-986020 sodium (AM152 sodium) is a high-affinity LPA1 (Lysophosphatidic Acid Receptor 1) antagonist for investigating idiopathic pulmonary fibrosis, slowing the rate of decline in forced vital capacity (FVC) and pulmonary function. BMS-986020 inhibits bile acid and phospholipid transporters (BSEP, MRP4, MDR3), altering bile homeostasis.