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Mechanisms of Multidrug Resistance in Cancer Chemotherapy
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Journal Article
Mechanisms of Multidrug Resistance in Cancer Chemotherapy
2020
Overview
Cancer is one of the main causes of death worldwide. Despite the significant development of methods of cancer healing during the past decades, chemotherapy still remains the main method for cancer treatment. Depending on the mechanism of action, commonly used chemotherapeutic agents can be divided into several classes (antimetabolites, alkylating agents, mitotic spindle inhibitors, topoisomerase inhibitors, and others). Multidrug resistance (MDR) is responsible for over 90% of deaths in cancer patients receiving traditional chemotherapeutics or novel targeted drugs. The mechanisms of MDR include elevated metabolism of xenobiotics, enhanced efflux of drugs, growth factors, increased DNA repair capacity, and genetic factors (gene mutations, amplifications, and epigenetic alterations). Rapidly increasing numbers of biomedical studies are focused on designing chemotherapeutics that are able to evade or reverse MDR. The aim of this review is not only to demonstrate the latest data on the mechanisms of cellular resistance to anticancer agents currently used in clinical treatment but also to present the mechanisms of action of novel potential antitumor drugs which have been designed to overcome these resistance mechanisms. Better understanding of the mechanisms of MDR and targets of novel chemotherapy agents should provide guidance for future research concerning new effective strategies in cancer treatment.
Publisher
MDPI AG,MDPI
Subject
/ Antineoplastic Agents - classification
/ Antineoplastic Agents - pharmacology
/ Antineoplastic Agents - therapeutic use
/ DNA
/ Drug Resistance, Multiple - drug effects
/ Drug Resistance, Multiple - genetics
/ Drug Resistance, Neoplasm - drug effects
/ Drug Resistance, Neoplasm - genetics
/ Enzymes
/ Gene Expression Regulation, Neoplastic - drug effects
/ Gene Expression Regulation, Neoplastic - genetics
/ Humans
/ Kinases
/ Leukemia
/ Multidrug resistant organisms
/ Prostate
/ Review
/ Tumors
