نتایج جستجو برای: oct1
تعداد نتایج: 439 فیلتر نتایج به سال:
In this study we report the cloning of four human OCT1 (hOCT1/SLC22A1) isoforms: a long form, hOCT1G/L554, and three shorter forms (hOCT1G/L506, hOCT1G483 and hOCT1G353). All four variants could be identified in the human glioma cell line SK-MG-1, whereas only two isoforms (hOCT1G/L554 and hOCT1G/L506) were found in human liver cDNA. The hOCT1G/L554 represents the full length hOCT1 since the se...
The homeostasis of endogeneous organic cations, such transported by rOCT1 (unpublished data). OCT1, as choline, monoamine neurotransmitters, nucleosides, OCT2 and OCT3 may also be inhibited by non-charged cationic drugs and cationic xenobiotics, is controlled compounds such as corticosteroids and by anions such by polyspecific cation transporters in small intestine, as probenecid or a-ketogluta...
BACKGROUND It has been proposed that serotonin (5-HT)-mediated constriction of the murine trachea is largely dependent on acetylcholine (ACh) released from the epithelium. We recently demonstrated that ACh can be released from non-neuronal cells by corticosteroid-sensitive polyspecific organic cation transporters (OCTs), which are also expressed by airway epithelial cells. Hence, the hypothesis...
1-(2-Methoxyethyl)-2-methyl-4,9-dioxo-3-(pyrazin-2-ylmethyl)-4,9-dihydro-1H-naphtho[2,3-d]imidazolium bromide (YM155 monobromide), a novel small molecule that downregulates survivin and exhibits potent antitumor activity, is hydrophilic and cationic. Although previous studies have shown that influx transporters play important roles in the uptake of YM155 into hepatocytes and possibly into cance...
Several xenobiotic (organic cation and anion) transporters have recently been identified, although their endogenous substrates, if such exist, remain unknown. When we initially identified NKT, also known as OAT1, the first member of the organic anion transporter (OAT) family (Lopez-Nieto CE, You G, Bush KT, Barros EJ, Beier DR, and Nigam SK. J Biol Chem 272: 6471-6478, 1997), we noted its expre...
Organic cation transporters (OCTs) are responsible for excretion of cationic substances into urine. Tissue OCT expression may be important for the disposition and excretion of xenobiotics. Therefore, OCT1, OCT2, OCT3, OCTN1, and OCTN2 mRNA levels were measured in adult rat tissues and rat kidney tissue at various stages of development from day 0 to 45. OCT1 mRNA expression was highest in kidney...
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