Title : Transport of the dipeptidyl peptidase-4 inhibitor sitagliptin by human organic anion transporter 3, organic anion transporting polypeptide 4C1, and multidrug resistance P-glycoprotein.

Pub. Date : 2007 May

PMID : 17314201






4 Functional Relationships(s)
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1 In this report, we demonstrate that sitagliptin is transported by human organic anion transporter hOAT3 (Km=162 microM), organic anion transporting polypeptide OATP4C1, and multidrug resistance (MDR) P-glycoprotein (Pgp), but not by human organic cation transporter 2 hOCT2, hOAT1, oligopeptide transporter hPEPT1, OATP2B1, and the multidrug resistance proteins MRP2 and MRP4. Sitagliptin Phosphate ATP binding cassette subfamily B member 1 Homo sapiens
2 In this report, we demonstrate that sitagliptin is transported by human organic anion transporter hOAT3 (Km=162 microM), organic anion transporting polypeptide OATP4C1, and multidrug resistance (MDR) P-glycoprotein (Pgp), but not by human organic cation transporter 2 hOCT2, hOAT1, oligopeptide transporter hPEPT1, OATP2B1, and the multidrug resistance proteins MRP2 and MRP4. Sitagliptin Phosphate ATP binding cassette subfamily B member 1 Homo sapiens
3 Our studies suggested that hOAT3, OATP4C1, and MDR1 Pgp might play a role in transporting sitagliptin into and out of renal proximal tubule cells, respectively. Sitagliptin Phosphate ATP binding cassette subfamily B member 1 Homo sapiens
4 Cyclosporine A significantly inhibited Pgp-mediated transport of sitagliptin (IC50=1 microM). Sitagliptin Phosphate ATP binding cassette subfamily B member 1 Homo sapiens