نتایج جستجو برای: پروتئین mdr1
تعداد نتایج: 20326 فیلتر نتایج به سال:
زمینه و هدف: دلیل اصلی عدم مو فقیت شیمی درمانی ، مقاومت دارویی چند گانه می باشد. مهمترین علت مقاومت دارویی ،پمپهای وابسته به atp مانند mdr1 هستند که باعث خروج دارو از سلول ها می شوند.ژن mdr1 بسیار پلی مورفیک می باشد و به نظر می رسد این پلی مورفیسم ها بر روی بیان ژن و در نتیجه پاسخ به درمان موثر است.هدف از این مطالعه بررسی پلی مورفیسم c1236tژن mdr1 و ارتباط آن با پاسخ به درمان درکودکان مبتلا به ...
background: chemotherapy plays a very important role in the treatment of leukemia but the resistance properties of the lymphoblasts limit the effect of chemotherapy. one of the main mechanisms of resistance to chemotherapy is the increased expression of mdr1 gene. the aim of this study was to explore the effect of resveratrol on the expression of mdr1 gene in leukemic lymphoblast of new cases o...
Colon cancer is one of the most common cancers in the world. Overexpression of MDR1 mRNA and P-gp is associated with the classic multidrug resistance of colon cancer cells. In our previous study, we reported on the transient specific reversal of MDR1/P-gp-dependent multi-drug resistance by RNA interference (RNAi) in colon cancer cells. In this study, RNAi targeting the MDR1 gene stably reversed...
Paraquat is a fatal herbicide following acute exposure. Previous studies have suggested that multidrug resistance protein 1 (MDR1) might help remove paraquat from the lungs and the kidney. MDR1 single-nucleotide polymorphisms (SNPs) are involved in the pharmacokinetics of many drugs. The purpose of this study was to determine whether MDR1 SNPs were associated with the mortality in paraquat into...
Steiger, Scott, MS., May 2013, Major Medicinal Chemistry 4-Isoxazolyl-1,4-dihydropyrirines bind the multidrug-resistance transporter Chairperson: Nicholas R. Natale The development of multidrug resistance in tumor cells has been recognized as a major obstacle to successful cancer treatment. Tumor cells in vitro and in vivo can develop multidrug resistance (MDR) to the lethal effects of a variet...
Overexpression of the multidrug efflux pump MDR1 is one mechanism by which the pathogenic yeast Candida albicans develops resistance to the antifungal drug fluconazole. The constitutive upregulation of MDR1 in fluconazole-resistant, clinical C. albicans isolates is caused by gain-of-function mutations in the zinc cluster transcription factor Mrr1. It has been suggested that Mrr1 activates MDR1 ...
The purpose of this study was to quantitate the expression of human MDR1 mRNA levels in normal endometrium and in endometrial carcinoma and to determine the association of MDR1 levels with prognostic indicators. Endometrial samples from 43 postmenopausal patients with endometrial carcinoma and 38 patients (controls) with benign disease undergoing hysterectomy were snap-frozen. MDR1 levels were ...
Little is known about the prognostic role of multidrug resistance (MDR) in adults with newly diagnosed acute lymphoblastic leukemia (ALL). In the context of the GIMEMA ALL0496 protocol, we evaluated the impact of MDR1 (protein expression and function) on the achievement of complete remission (CR) and clinical outcome. Flow cytometric analysis of MDR1 expression (D) and function (rhodamine-123 e...
In this study five macrolide antibiotics (azithromycin, erythromycin, clarithromycin, roxithromycin and telithromycin) were compared based on their ability to interact with human MDR1 (ABCB1, P-glycoprotein), studied from two main aspects: by determining the influence of macrolide antibiotics on MDR1 function, as well as the influence of MDR1 on macrolide accumulation in MES-SA/Dx5 cells overex...
Overexpression of P-glycoprotein, the product of the multidrug resistance-1 (MDR1) gene, is associated with treatment failure in some hematopoietic tumors. Although expression of P-glycoprotein in normal hematopoietic cells is tightly regulated during hematopoietic differentiation, its aberrant overexpression in hematopoietic malignancies occurs at the transcriptional level. We have demonstrate...
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