Cytotoxic Drug Resistance Mechanisms

Author : Robert Brown,Uta Böger-Brown
Publisher : Springer Science & Business Media
Page : 241 pages
File Size : 52,9 Mb
Release : 2008-02-01
Category : Medical
ISBN : 9781592596874

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Cytotoxic Drug Resistance Mechanisms by Robert Brown,Uta Böger-Brown Pdf

There is now a range of cytotoxic drugs that have considerable clinical usefulness in producing responses in tumors and even, in a small proportion of cases, cure. However, the acquisition of drug resistance is a major clinical problem and is perhaps the main limiting factor in successful treatment of cancer. Thus, a tumor initially sensitive to chemotherapy will, in the majority of cases, eventually recur as a resistant tumor, which will then progress. Much of our understanding of drug resistance mechanisms comes from the study of tumor cell lines grown in tissue culture. We now understand many of the - lecular mechanisms that can lead to a cell acquiring resistance to antic- cer drugs; however, we still do not know which mechanism(s) are those most relevant to the problem of clinical drug resistance. Indeed, given that many of the cytotoxic anticancer drugs were discovered by random screening, it is - clear what features give a clinically useful anticancer drug a sufficient the- peutic index to be of value. The aim of Cytotoxic Drug Resistance Mechanisms is to provide pro- cols that are appropriate for examining the mechanisms of cellular resistance to anticancer cytotoxics in human tumor samples. Tumor cell lines have been enormously useful as experimental models of drug resistance mechanisms, however they have limitations and we need to address the relevance of such mechanisms in patients’ tumors. Examining drug resistance in tumors is much more problematic than in cell lines.

Author : Martin Clynes
Publisher : Springer Science & Business Media
Page : 343 pages
File Size : 48,9 Mb
Release : 2013-04-17
Category : Medical
ISBN : 9789401723749

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Multiple Drug Resistance in Cancer 2 by Martin Clynes Pdf

Resistance to chemotherapy, and especially multi-drug resistance, represents a significant barrier to the successful treatment of cancer. This multi-author volume brings together a wide range of up-to-date reviews on different aspects of our knowledge of drug-resistance mechanisms, written by experts in the different areas. Particular attention is paid to recently discovered mechanisms relating to oncogene expression and in particular to proteins involved in regulation and execution of apoptosis. Other important topics covered include DNA repair, topoisomerases, cell cycle control, oxygenation and vascularisation of tumours, LRP, intermediate filament proteins and low-level resistance. Recent developments in understanding the role of efflux pumps (P-170, MRP) in multi-drug resistance are also reviewed. This book will be useful to clinicians and scientists working in the areas of chemotherapy, drug resistance, DNA repair and apoptosis research.

Author : Kapil Mehta,Zahid H. Siddik
Publisher : Springer Science & Business Media
Page : 372 pages
File Size : 40,6 Mb
Release : 2009-06-12
Category : Medical
ISBN : 9780387894454

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Drug Resistance in Cancer Cells by Kapil Mehta,Zahid H. Siddik Pdf

It was estimated that in 2008, 1,437,180 patients would receive a new cancer diagnosisand 565,650individualswould die of cancer (Jemal et al. 2008).Since the vast majority of patients dying of cancer will have had anticancer therapy, both c- ventional chemotherapy and novel targeted therapy, it can be concluded that these patients are dying with drug resistant cancer. The term multidrug resistance is also apt – in that these patients die after having undergone multiple rounds of different and structurally unrelated cancer therapies. However, for some, the concept of m- tidrug resistance is a worn out idea, stemming from disappointment with the drug resistancereversalstrategiesthatwerecarriedoutinthe1990susingpumpinhibitors to block drug resistance mediated by P-glycoprotein, product of the MDR-1 gene. However, if one takes the larger de?nition – multidrug resistance as simultaneous resistance to multiple structurally unrelated anticancer therapies – its existence c- not be denied. The purpose of this book is to explore new concepts related to drug resistance in cancer, including resistance to the new molecularly targeted agents. Perhaps new terminology is needed for resistance that occurs following therapy with the targeted agents: Novel Targeted Agent Resistance (NTR). Alternatively, we can return to the original de?nition of multidrug resistance as simply the res- tance to multipleagents that occurs in the course of normalcancer progression.This resistance is likely to be mediated by many factors.

Author : Sameer Ullah Khan
Publisher : Springer Nature
Page : 392 pages
File Size : 42,8 Mb
Release : 2024-07-02
Category : Electronic
ISBN : 9789819716661

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Drug Resistance in Cancer: Mechanisms and Strategies by Sameer Ullah Khan Pdf

Author : Liman S. Torres
Publisher : Nova Publishers
Page : 242 pages
File Size : 45,8 Mb
Release : 2007
Category : Drug resistance in cancer cells
ISBN : 1600215726

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Cancer Drug Resistance Research Perspectives by Liman S. Torres Pdf

One of the main causes of failure in the treatment of cancer is the development of drug resistance by the cancer cells. The design of cancer chemotherapy has become increasingly sophisticated, yet there is no cancer treatment that is 100% effective against disseminated cancer. Resistance to treatment with anticancer drugs results from a variety of factors including individual variations in patients and somatic cell genetic differences in tumours, even those from the same tissue of origin. Frequently resistance is intrinsic to the cancer, but as therapy becomes more and more effective, acquired resistance has also become common. The most common reason for acquisition of resistance to a broad range of anticancer drugs is expression of one or more energy-dependent transporters that detect and eject anticancer drugs from cells, but other mechanisms of resistance including insensitivity to drug-induced apoptosis and induction of drug-detoxifying mechanisms probably play an important role in acquired anticancer drug resistance. Studies on mechanisms of cancer drug resistance have yielded important information about how to circumvent this resistance to improve cancer chemotherapy and have implications for pharmacokinetics of many commonly used drugs. This book presents new and important research in this field.

Author : Robert A. Parsons
Publisher : Nova Publishers
Page : 240 pages
File Size : 51,6 Mb
Release : 2007
Category : Medical
ISBN : 1600218229

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Progress in Cancer Drug Resistance Research by Robert A. Parsons Pdf

One of the main causes of failure in the treatment of cancer is the development of drug resistance by the cancer cells. The design of cancer chemotherapy has become increasingly sophisticated, yet there is no cancer treatment that is 100 percent effective against disseminated cancer. Resistance to treatment with anticancer drugs results from a variety of factors including individual variations in patients and somatic cell genetic differences in tumours, even those from the same tissue of origin. Frequently resistance is intrinsic to the cancer, but as therapy becomes more and more effective, acquired resistance has also become common.The most common reason for acquisition of resistance to a broad range of anticancer drugs is expression of one or more energy-dependent transporters that detect and eject anti-cancer drugs from cells, but other mechanisms of resistance including insensitivity to drug-induced apoptosis and induction of drug-detoxifying mechanisms probably play an important role in acquired anticancer drug resistance. Studies on mechanisms of cancer drug resistance have yielded important information on how to circumvent this resistance to improve cancer chemotherapy and have implications for pharmacokinetics of many commonly used drugs.

Author : Beverly A. Teicher
Publisher : Springer Science & Business Media
Page : 611 pages
File Size : 46,7 Mb
Release : 2007-11-09
Category : Medical
ISBN : 9781597450355

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Cancer Drug Resistance by Beverly A. Teicher Pdf

Leading experts summarize and synthesize the latest discoveries concerning the changes that occur in tumor cells as they develop resistance to anticancer drugs, and suggest new approaches to preventing and overcoming it. The authors review physiological resistance based upon tumor architecture, cellular resistance based on drug transport, epigenetic changes that neutralize or bypass drug cytotoxicity, and genetic changes that alter drug target molecules by decreasing or eliminating drug binding and efficacy. Highlights include new insights into resistance to antiangiogenic therapies, oncogenes and tumor suppressor genes in therapeutic resistance, cancer stem cells, and the development of more effective therapies. There are also new findings on tumor immune escape mechanisms, gene amplification in drug resistance, the molecular determinants of multidrug resistance, and resistance to taxanes and Herceptin.

Author : Benjamin Bonavida
Publisher : Springer Science & Business Media
Page : 271 pages
File Size : 48,6 Mb
Release : 2013-07-04
Category : Medical
ISBN : 9781461470700

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Molecular Mechanisms of Tumor Cell Resistance to Chemotherapy by Benjamin Bonavida Pdf

​​​​​This volume gives the latest developments in on the mechanisms of cancer cell resistance to apoptotic stimuli, which eventually result in cancer progression and metastasis. One of the main challenges in cancer research is to develop new therapies to combat resistant tumors. The development of new effective therapies will be dependent on delineating the biochemical, molecular, and genetic mechanisms that regulate tumor cell resistance to cytotoxic drug-induced apoptosis. These mechanisms should reveal gene products that directly regulate resistance in order to develop new drugs that target these resistance factors and such new drugs may either be selective or common to various cancers. If successful, new drugs may not be toxic and may be used effectively in combination with subtoxic conventional drugs to achieve synergy and to reverse tumor cell resistance. The research developments presented in this book can be translated to produce better clinical responses to resistant tumors.

Author : Robert F. Ozols
Publisher : Springer Science & Business Media
Page : 314 pages
File Size : 43,7 Mb
Release : 2012-12-06
Category : Medical
ISBN : 9781461538721

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Molecular and Clinical Advances in Anticancer Drug Resistance by Robert F. Ozols Pdf

The importance of drug resistance in cancer chemotherapy cannot be over stated. The 500,000 patients who die every year from cancer in the United States have, in most cases, been treated with chemotherapy. Many of these patients responded initially to chemotherapy, but death resulted from the development of drug-resistant tumors. In the first volume in the series. Drug Resistance in Chemotherapy the results of comprehensive laboratory studies aimed at understanding the mechanisms for resistance to individual agents and to the development of broad cross-resistance were described. In the past 2 years there has been substantial progress in understanding the molecular biology associated with these mechanisms of drug resistance. For the first time we are starting to understand which mechanisms are playing an im portant role in human tumors, and even more importantly, clinical trials have recently been initiated in an effort to reverse specific forms of drug resistance. The purpose of this volume is to describe the new advances, both at the molecular level and in the clinic regarding mechanisms of drug resistance and potential ways this resistance can be circumvented. This volume is focused upon mechanisms of resistance associated with two major classes of anticancer drugs: alkylating agents (including cisplatin) and the natural products (e. g. , adriamycin and vinblastine). The first section of the book describes new insights into the genetic mechanisms associated with drug resistance.

Author : John A. Kellen
Publisher : Springer Science & Business Media
Page : 288 pages
File Size : 54,6 Mb
Release : 2012-12-06
Category : Medical
ISBN : 9781461598527

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Alternative Mechanisms of Multidrug Resistance in Cancer by John A. Kellen Pdf

Nullius in verba. . . Truth will be tested not by words. Horace (Epistles) Few read introductions except for book reviewers, who want to take a shortcut and avoid reading the book itself. However, tradition requires that the preface make public why the book was written at all (this is not supposed to include powerful reasons such as augmenting the ego of the editor and authors). Frequently, the inflationary tendency to publish in verbose length is in conflict with market forces and interest. No doubt, multidrug resistance is a "fashionable" topic, but there are many fashions displayed on the cat-walk of scientific literature. One can rationalize that the forces driving our concern with multi drug resistance reflect the frustration of pharmaceutical companies and oncologists alike: as soon as a new anticancer drug enters clinical trials, cancer cells start eluding extinction with their elaborate and successful mechanisms. Many grants have been awarded and spent, only to confirm the futility of our efforts to defeat this cellular Darwinism. Our medical and scientific training makes it hard, if not impossible, to accept that the survival of a malignant cell, alone or as part of a tissue, is part of the continuance of life. Since exposure to noxious and lethal substances is unavoidable, cells have been forced to develop a multitude of mechanisms to prevent entry or accelerate exit of such materials from intracellular space.

Author : Herbert M. Pinedo,Giuseppe Giaccone
Publisher : Cambridge University Press
Page : 344 pages
File Size : 46,7 Mb
Release : 1998-03-26
Category : Medical
ISBN : 0521473217

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Drug Resistance in the Treatment of Cancer by Herbert M. Pinedo,Giuseppe Giaccone Pdf

International authorities review the mechanisms and clinical implications of drug resistance in cancer.

Author : Rishabha Malviya,Arun Kumar Singh,Deepika Yadav
Publisher : John Wiley & Sons
Page : 228 pages
File Size : 49,7 Mb
Release : 2023-07-18
Category : Medical
ISBN : 9781394209842

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Multi-Drug Resistance in Cancer by Rishabha Malviya,Arun Kumar Singh,Deepika Yadav Pdf

MULTI-DRUG RESISTANCE IN CANCER The book details the mechanisms underlying multi-drug cellular resistance and the targets of novel chemotherapeutic agents. Cancer is a major killer all over the world. Even with all the progress made, chemotherapy is still the mainstay of modern cancer treatment. The progression of the cellular defeat of numerous independent anticancer drugs in terms of their chemical structure is a major barrier to successful chemotherapy. Multi-drug resistance (MDR) is a term for the fact that most cancer patients exhibit this phenomenon. According to the numbers, drug resistance carries the blame for 90% of cancer patient deaths. Refractory cancer and tumor recurrence are common outcomes of prolonged chemotherapy. Because of the prevalence of drug-resistance mutations, the difficulty of treating tumors increases and the therapeutic efficacy of drugs decreases. Multi-Drug Resistance in Cancer: Mechanism and Treatment Strategies contains nine chapters that cover topics such as: studying the mechanics of resistance to drugs by autophagy; studies to delineate the role of efflux transporters; expression of drug transporters; resistance to targeted therapies in breast cancer; advances in metallodrug driven combination treatment for cancer; and use of natural agents for the overcoming of cancer drug resistance. The book aims to provide the latest data on the mechanisms of cellular resistance to anticancer agents currently used in clinical treatment. It provides a better understanding of the mechanisms of MDR and targets of novel chemotherapy agents which should guide future research concerning new effective strategies in cancer treatment. Audience This book is written for pharmaceutical and biomedical scientists and researchers at both the bench and in the clinic who are interested in the mechanisms and strategies for overcoming cancer’s multi-drug resistance.

Author : James H. Goldie,Andrew J. Coldman
Publisher : Cambridge University Press
Page : 257 pages
File Size : 52,7 Mb
Release : 1998-10-08
Category : Medical
ISBN : 9780521482738

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Drug Resistance in Cancer by James H. Goldie,Andrew J. Coldman Pdf

An accessible and sophisticated account of the biological mechanisms of drug resistance in cancer and their mathematical modelling.

Author : William N. Hait
Publisher : Springer Science & Business Media
Page : 421 pages
File Size : 51,7 Mb
Release : 2012-12-06
Category : Medical
ISBN : 9781461312673

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Drug Resistance by William N. Hait Pdf

Resistance to treatment represents the final common outcome for far too many patients with cancer. Even our most promising new drugs fall victim to drug resistance. Hormones and newer biological therapies, though safe and active, also lose their activity over time. In this volume of Drug Resistance, leading investigators in the field have reviewed the most basic mechanisms of drug resistance, and have proposed ways to modulate resistance. This comprehensive volume should be of value for basic and clinical scientists who wish to delve more deeply into this intriguing problem in the laboratory and devastating problem in the clinic.

Author : Paul V. Woolley,Kenneth D. Tew
Publisher : Elsevier
Page : 417 pages
File Size : 55,6 Mb
Release : 2013-10-22
Category : Medical
ISBN : 9781483220758

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Mechanisms of Drug Resistance in Neoplastic Cells by Paul V. Woolley,Kenneth D. Tew Pdf

Bristol-Myers Cancer Symposia, Volume 9: Mechanisms of Drug Resistance in Neoplastic Cells provides information on both basic scientific and clinical studies on the causes and implications of tumor cell resistance to common antineoplastic agents. The book describes the colon cancer as a model for resistance to antineoplastic drugs; mathematical modeling of drug resistance; and the mechanism of induced gene amplification in mammalian cells. The text also discusses the cellular concomitants of multidrug resistance; resistance to alkylating agents; and the phosphoprotein and protein kinase C changes in human multidrug-resistant cancer cells. Novel drugs that affect glutathione metabolism; the regulation of genes encoding drug-metabolizing enzymes in normal and preneoplastic tissues; and the relevance of glutathione S-transferases to anticancer drug resistance are also considered. The book further tackles the cellular resistance to cyclophosphamide; the preclinical and clinical experiences with drug combinations designed to inhibit DNA repair in resistant human tumor cells; and the modification of the cytotoxicity of DNA-directed chemotherapeutic agents by polyamine depletion. The text also demonstrates multidrug resistance and the circumvention of resistance. Oncologists, molecular biologists, biochemists, geneticists, and pharmacologists will find the book invaluable.