The phenomenon of multi-drug resistance in the treatment of malignant tumors.
نویسندگان
چکیده
Multi-drug resistance (MDR) is a condition when there is broad cross-resistance of cells to various agents which are different in structure and effect. Modern perceptions on mechanisms of MDR development in malignant tumors have been considered, in particular, in tre-ating breast cancer. Physiological functions and contribution to MDR development of ABC-transporter protein families have been described. The role of activation of glutathione system enzymes and apoptosis-regulating proteins in MDR formation has been shown.
منابع مشابه
مکانیسم مقاومت دارویی در سرطان
Some varieties of human cancers become resistant, or, are intrinsically resistant to treatment with conventional drug therapies. This phenomenon is due largely to over-expression of the ATP binding cassette, (ABC), super-family of membrane transporters. In this regard, 170 kDa plasma membrane ATP-dependent pump, known as P-glycoprotein are the most important. Other members of multi-drug resista...
متن کاملThe Role of Epigenetics in Cancer Drug Resistance
Cancer is caused by aberrant genetic and epigenetic changes in genes expression. DNA methylation, histone modification, and microRNAs gene deregulation are the most known epigenetic changes in different stages of cancer. Since every tumor has its own specific epigenome, any abnormal pattern is a potential biomarker for classification of different types of tumors. Despite, tumorigenesis, abnorma...
متن کاملMolecular Identification of Pathogenic Enterococci and Evaluation of Multi-drug Resistance in Enterococcus Species Isolated From Clinical samples of Some Hospitals in Tehran, Iran
Background: Multidrug-resistant (MDR) enterococci cause many problems for physicians and infection control specialists in the recent years. Hence, by the identification of antibiotic resistance patterns of enterococci in different geographical regions an appropriate strategy can be developed to prevent bacterial antibiotic resistance and provide effective treatment. The current study aimed at i...
متن کاملتأثیر آدنوزین ´5تری فسفات در القای آپوپتوز و مهار بیان ژن Survivin و واریانت پیرایشی ضد آپوپتوزی SUR-3B آن در سلول های K562
Introduction: Leukemia is a heterogeneous malignant disease in which progression at the level of CD34+ cells has a major impact in drug resistance and relapse. The multi-drug resistance gene product, P-glycoprotein is an inhibitor of apoptosis proteins (IAPs), such as Survivin that are expressed simultaneously with several putative drug resistance parameters in CD34+ leukemia cells. In fact, IA...
متن کاملRNAi Induced Inhibition of MRP1 Expression and Reversal of Drug Resistance in Human Promyelocytic HL60 Cell Line
Multidrug resistance (MDR) is a complex phenomenon in which many different genes regulating drug transport, cellular repair, detoxification and drug metabolism are involved. Nevertheless, in most drug resistant cell lines and cancer patients up-regulation of ABC-transporter genes such as MDR associated Protein (MRP1) gene could be at the basis of the drug resistance phenotype. We aimed to decre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Experimental oncology
دوره 36 3 شماره
صفحات -
تاریخ انتشار 2014