Carcinogens, Dna Damage And Cancer Risk: Mechanisms Of Chemical Carcinogenesis

Carcinogens, Dna Damage And Cancer Risk: Mechanisms Of Chemical Carcinogenesis PDF

Author: Miriam Christine Poirier

Publisher: World Scientific

Published: 2018-09-28

Total Pages: 392

ISBN-13: 981323721X

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As chemical exposures and cancer rates increase worldwide, there is a need for students, researchers, public health professionals, and physicians to understand the mechanisms connecting exposure with human cancer risk. This new book is an essential reference, as well as introduction to the field of chemical carcinogenesis, with particular focus on DNA damage as a critical link between exposure and disease, and emphasis on biomarkers associated with cancer risk in humans. In addition to DNA damage, related topics covered include metabolism of selected chemical carcinogens, exposure-induced epigenetic changes, cancer-associated mutations and reduction of DNA damage and cancer risk by chemoprevention. The book is designed to be a comprehensive guide to basic principles, a teaching tool for academics, and a map for the development of protective mechanisms to reduce human cancer risk.

Chemical Carcinogenesis

Chemical Carcinogenesis PDF

Author: Trevor M. Penning

Publisher: Springer Science & Business Media

Published: 2011-03-03

Total Pages: 447

ISBN-13: 1617379956

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This volume will provide a contemporary account of advances in chemical carcinogenesis. It will promote the view that it is chemical alteration of the DNA that is a route cause of many cancers. The multi-stage model of chemical carcinogenesis, exposure to major classes of human carcinogens and their mode-of-action will be a focal point. The balance between metabolic activation to form biological reactive intermediates and their detoxification, ensuing DNA-lesions and their repair will be profiled. It will describe the chemical changes that occur in DNA that result from endogenous insults including epigenetic changes that lead to gene silencing. It will describe major mechanisms of mutagenesis, affects on tumor suppressor genes and proto-oncogenes, and how cell-cycle check points can be by-passed by the "stealth-like" properties of chemical carcinogens. Environmental agents that can promote tumor formation will be discussed. The monograph will have wide appeal as a knowledge base for graduate students, post-doctoral fellows and faculty interested in this aspect of cancer causation and research.

Induced Effects Of Genotoxic Agents In Eukaryotic Cells

Induced Effects Of Genotoxic Agents In Eukaryotic Cells PDF

Author: Toby G Rossman

Publisher: CRC Press

Published: 2020-07-26

Total Pages: 188

ISBN-13: 1000162958

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This book provides an understanding of the consequences of induced proteins in the toxicological response of cells to chemical and radiation damage to DNA and will be helpful in creating proper mathematical models for extrapolation to low doses and assessing human exposure or cellular injury.

Mechanisms of DNA Damage and Repair

Mechanisms of DNA Damage and Repair PDF

Author: Michael G. Simic

Publisher: Springer

Published: 1986-06-30

Total Pages: 604

ISBN-13:

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This book is based on the papers presented at the conference on "Mecha nisms of DNA Damage and Repair: Implications for Carcinogenesis and Risk Assessment," held at the National Bureau of Standards on June 2-7, 1985, This volume deals with mechanisms of DNA damage and repair at the molecular level; consequences of unrepaired or misrepaired damage, with major emphasis on carcinogenesis; drugs which bind selectively to altered and potentially damaging DNA sequences; and potential utilization of DNA damage as an endpoint for assessing risks of UV light, ionizing radiations, chemicals, drugs, and hazardous agents in foods. Because the induction of mutations by radiation and genotoxic chemicals has been observed to follow one-hit kinetics in some instances, it is generally assumed that any level of exposure to a DNA-damaging agent may increase the risk of genetic disease or cancer in an exposed population. At the same time, however, there is evidence that although the DNA of living cells is continually damaged by natural background radiation, free radicals, and other naturally occurring processes, most of the damage is normally repaired.

Exocyclic DNA Adducts in Mutagenesis and Carcinogenesis

Exocyclic DNA Adducts in Mutagenesis and Carcinogenesis PDF

Author: H. Bartsch

Publisher:

Published: 1999

Total Pages: 392

ISBN-13:

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The use of exocyclic adducts as biomarkers offers a promising tool in studies of cancer etiology and prevention, particularly for human neoplasias in which the causative factors and mechanisms are still poorly understood. Presentations at an international conference, which resulted in this volume, comprise a comprehensive treatise on the current state of the art and scientific information on exocyclic DNA adducts. The volume includes sections on ultra sensitive detection methods, formation from exogenous and endogenous sources, DNA repair, physical chemical approaches to structural elucidation, and use as biomarkers and their role in mutagenesis and carcinogenesis.

Technologies for Detection of DNA Damage and Mutations

Technologies for Detection of DNA Damage and Mutations PDF

Author: G.P. Pfeifer

Publisher: Springer Science & Business Media

Published: 1996-07-31

Total Pages: 476

ISBN-13: 9780306452376

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''Useful and timely.'' ---Mutagenesis ''Of considerable value.'' ---Journal of Medical Genetics ''Quite readable....a comprehensive overview....perfectly covers the needs of those researchers who have to decide on the best strategy to identify damage or mutations at the molecular level.'' ---Trends in Cell Biology ''The formats of the presentations are uniform and ample and up-to-date references are provided at the end of each chapter...will be welcomed by postgraduate researchers of all ages and should retain its usefulness for a long time.'' ---Endeavour, 21(4), 1997 This important resource thoroughly reviews a wide range of techniques used in mutagenesis research-ranging from established techniques to recently developed methodologies-based on the polymerase chain reaction. DNA damage analysis, DNA repair assays, and mutation detection are a few of the techniques featured. Chapters present detailed experimental protocols benefiting researchers and students in the fields of toxicology, biotechniques, molecular biology, photobiology, medical genetics, and oncology.

The Chemical Biology of DNA Damage

The Chemical Biology of DNA Damage PDF

Author: Nicholas E. Geacintov

Publisher: John Wiley & Sons

Published: 2011-08-04

Total Pages: 446

ISBN-13: 3527642110

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Bringing the power of biochemical analysis to toxicology, this modern reference explains genotoxicity at the molecular level, showing the links between a DNA lesion and the resulting cellular or organismic response. Clearly divided into two main sections, Part 1 focuses on selected examples of important DNA lesions and their biological impact, while the second part covers current advances in assessing and predicting the genotoxic effects of chemicals, taking into account the biological responses mediated by the DNA repair, replication and transcription machineries. A ready reference for biochemists, toxicologists, molecular and cell biologists, and geneticists seeking a better understanding of the impact of chemicals on human health.

DNA Damage and Repair in Human Tissues

DNA Damage and Repair in Human Tissues PDF

Author: Betsy M. Sutherland

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 456

ISBN-13: 146130637X

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Physical and chemical agents in the environment damage the DNA of humans, and pose a major threat to human health today, and to the genetic integrity of human populations. Although studies on isolated DNA in vitro, on prokaryotes, on mammalian cells in culture, and on laboratory animals have provided essential background information, it is now possible to study DNA damage and repair in human tissues directly. New techniques of high sensitivity, especially those not requiring radioactive labeling have made possible quantitation of DNA damage and repair, as well as detection of residual, unrepaired DNA lesions . In recent years, several investigators have taken up the challenge of studying damage and repair responses in humans, and we have chosen that work as the special focus of this Symposium. Major advances in under standing damage and responses in human skin, in blood cells and in human internal organs indicate three major themes. First, DNA damage levels in human tissues depend not only on the initial exposures, but also on the capapacity of that tissue for repair of the specific lesion type. Second, repair in human tissues may differ quantitatively and qualitatively from that in human cells in culture.