نتایج جستجو برای: oct1
تعداد نتایج: 439 فیلتر نتایج به سال:
Purpose: Genes of androgen and estrogen signaling cells and stem cell–like cells play crucial roles in prostate cancer. This study aimed topredict clinical failure by identifying these prostate cancer-related genes. Experimental Design: We developed models to predict clinical failure using biopsy samples from a training set of 46 and an independent validation set of 30 patients with treatment-n...
Although data are available on the change of expression/activity of drug-metabolizing enzymes in liver cirrhosis patients, corresponding data on transporter protein expression are not available. Therefore, using quantitative targeted proteomics, we compared our previous data on noncirrhotic control livers (n = 36) with the protein expression of major hepatobiliary transporters, breast cancer re...
PURPOSE Genes of androgen and estrogen signaling cells and stem cell-like cells play crucial roles in prostate cancer. This study aimed to predict clinical failure by identifying these prostate cancer-related genes. EXPERIMENTAL DESIGN We developed models to predict clinical failure using biopsy samples from a training set of 46 and an independent validation set of 30 patients with treatment-...
BACKGROUND Significant under-prediction of in vivo clearance in rat was observed for a potent p21-activated kinase (PAK1) inhibitor, GNE1. OBJECTIVE Rate-determining (rapid uptake) and rate-limiting (slow excretion) steps in systemic clearance and elimination of GNE1, respectively, were evaluated to better understand the cause of the in vitro-in vivo (IVIV) disconnect. METHODS A series of i...
Cell sizes can differ vastly between cell types in individual metazoan organisms. In rat liver, spleen, and thymus, differences in average cell size roughly reflect differences in RNA:DNA ratios. For example, hepatocytes were found to have a cytoplasmic:nuclear volume ratio and an RNA:DNA ratio which were 34- and 21-fold higher, respectively, than those in thymocytes. RNA synthesis per DNA-equi...
Purpose Corneal epithelial (CE) homeostasis requires coordination between proliferation and differentiation. Here we examine the role of cell proliferation regulator Krüppel-like factor 5 (Klf5) in adult mouse CE homeostasis. Methods Klf5 was ablated in a spatiotemporally restricted manner by inducing Cre expression in 8-week-old ternary transgenic Klf5LoxP/LoxP/Krt12rtTA/rtTA/Tet-O-Cre (Klf5...
We tested the hypothesis that differential expression of liver plasma membrane transporters might account for variations in biliary lipid secretion rates between gallstone-susceptible C57L/J and gallstone-resistant AKR/J mice. Plasma membrane fractions and total RNA isolated from livers of mice fed with a control or lithogenic (15% fat/1.25% cholesterol/0.5% cholic acid) diet were used for meas...
BACKGROUND Organic cation transporters (OCTs) in the renal proximal tubule are important for the excretion of both exo- and endogenous compounds, and chronic kidney disease (CKD) alter the expression of OCT. Metformin is a well-known substrate for OCT, and recently, we demonstrated that positron emission tomography (PET) with 11C-labelled metformin ((11)C-metformin) is a promising approach to e...
Hepatic drug transporters are now recognized as major actors of hepatobiliary elimination of drugs. Characterization of their regulatory pathways is therefore an important issue. In this context, the present study was designed to analyze the potential regulation of human hepatic transporter expression by protein kinase C (PKC) activation. Treatment by the reference PKC activator phorbol 12-myri...
Sorafenib is an orally active tyrosine kinase inhibitor used in the treatment of renal and hepatocellular carcinoma. This study was designed to establish whether transport proteins are involved in the hepatic uptake of sorafenib and to determine the extent of biliary excretion of sorafenib and its metabolites in human hepatocytes. Initial uptake was assessed in freshly isolated, suspended human...
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