Title : Enhanced Permeability of Etoposide across Everted Sacs of Rat Small Intestine by Vitamin E-TPGS.

Pub. Date : 2013 Winter

PMID : 24250670






4 Functional Relationships(s)
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1 Etoposide, a widely used anticancer drug, exhibits low and variable oral bioavailability mainly because of being substrate for the efflux transporter, P-glycoprotein (P-gp). Etoposide ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus
2 Etoposide, a widely used anticancer drug, exhibits low and variable oral bioavailability mainly because of being substrate for the efflux transporter, P-glycoprotein (P-gp). Etoposide ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus
3 Therefore, the present study was aimed to investigate the effect of D-alpha-tocopherol polyethylene glycol 1000 succinate (TPGS) and PEG 400 as P-gp inhibitors on the intestinal absorption of etoposide. Etoposide ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus
4 The absorptive transport of etoposide was significantly enhanced (p < 0.001) in the presence of verapamil (100 mug/mL) and TPGS (over the concentration range of 0.002- 0.1 mg/mL), suggesting that the inhibition of P-gp located in the intestine may be involved in the enhancement of etoposide absorption. Etoposide ATP-binding cassette, subfamily B (MDR/TAP), member 1B Rattus norvegicus