نتایج جستجو برای: Rhodamine123
تعداد نتایج: 49 فیلتر نتایج به سال:
The purpose of this study was to clarify the effects of oxaliplatin on the function and expression of the multidrug efflux transporter P-glycoprotein/MDR1 in a porcine kidney epithelial cell line, LLC-PK1, as a renal tubular epithelial model. LLC-PK1 cells were pretreated with or without oxaliplatin for 48 h, and the growth inhibitory effects of a MDR1 substrate, paclitaxel, and the transport o...
Canine lymphoma is routinely treated with a doxorubicin-based multidrug chemotherapy protocol, and although treatment is initially successful, tumor recurrence is common and associated with therapy resistance. Active efflux of chemotherapeutic agents by transporter proteins of the ATP-Binding Cassette superfamily forms an effective cellular defense mechanism and a high expression of these trans...
This study investigated the effects of racemic methadone (MET) on P-glycoprotein (P-gp) activity in cell culture. MET showed no differential rates of passage between the basolateral to apical (B to A) and apical to basolateral (A to B) direction across Caco-2 cell monolayers in a transwell system. MET transport in either direction was not importantly influenced by the P-gp inhibitor verapamil. ...
The present study was undertaken to estimate the therapeutic benefit to down-regulate the Na(+)/H(+) exchanger 1 (NHE1) for reversing chemoresistance of BCR-ABL-positive leukemia patient cells and cell lines. As a result, after treatment with specific NHE1 inhibitor Cariporide or high K(+) buffer to decrease intracellular pH (pH(i)), cells from relapsed patients exhibited decreased Pgp level, e...
The effect of Wellsolve, a new solubilizing agent, on the function of intestinal membrane barrier and transporters including P-glycoprotein (P-gp) and peptide transporter (PEPT1) was examined by an in vitro diffusion chamber and an in situ closed loop method. The model drugs used in this study were 5(6)-carboxyfluorescein (CF), rhodamine123 (a P-glycoprotein substrate), cephalexin (a typical su...
OBJECTIVE To determine whether curcumin reverses the multidrug resistance of human colon cancer cells in vitro and in vivo. METHODS In a vincristine-resistant cell line of human colon cancer, the cell viability of curcumin-treated cells was determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Rhodamine123 efflux was evaluated to detect P-glycoprotein transp...
Pistagremic acid (PA) is a bioactive triterpenoid isolated from various parts of Pistacia integerrima plants. The aim of this research was to investigate PA for reversion of multidrug resistant (MDR) mediated by P-glycoprotein using rhodamine-123 exclusion study on a multidrug resistant human ABCB1 (ATP-binding cassette, sub-family B, member 1) gene-transfected mouse T-lymphoma cell line in vit...
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