The Carcinogenicity Of Metals

This important text comprehensively examines each of the elements for which carcinogenicity has been established, providing detailed information on the carcinogenicity and toxicity and detailing the most up-to-date research in this area.

but also the possibility of intervention in specific stages. In Human behavior, including stress and other factors, plays an important role in neoplasia, although too little is known addition, variables which affect cancer development as well on the reasons for such development. Carcinogens, which as some endogenous factors can be better delineated help initiate the neoplastic process, may be either synthetic through such investigations. The topics of this volume encompass premalignant non or naturally-occurring. Cancer causation may be ascribed to invasive lesions, species-specific aspects of carcinogenicity, certain chemicals, physical agents, radioactive materials, viruses, parasites, the genetic make-up of the organism, and radiation, viruses, a quantum theory of carinogenesis, onco bacteria. Humans, eumetazoan animals and vascular plants genes, and selected environmental carcinogens. are susceptible to the first six groups of cancer causes, whe reas the last group, bacteria, seems to affect only vascular plants. Neoplastic development may begin with impairment ofJmdy defenses by a toxic material (carcinogen) which acts as an initiator, followed by promotion and progression to an overt neoplastic state. Investigation of these processes Series Editor Volume Editor allows not only a better insight into the mechanism of action Hans E. Kaiser Elizabeth K. Weisburger vii ACKNOWLEDGEMENT Inspiration and encouragement for this wide ranging project on cancer distribution and dissemination from a comparative biological and clinical point of view, was given by my late friend E. H. Krokowski.

This Scientific Publication reviews the information on cancer sites and mechanistic events for the more than 100 agents classified in Group 1 (carcinogenic to humans) by the IARC Monographs Program. This category of agents is diverse and includes chemicals and chemical mixtures; occupations; metals, dusts, and fibres; radiation; viruses and other biological agents; personal habits; and pharmaceuticals. For the Group 1 agents, there were cross-cutting questions about the relevance to humans of certain cancer sites or mechanistic pathways in animals. This publication is based on a systematic identification and comparison of the cancer sites observed in humans and those observed in experimental animals, and a compilation of mechanistic events for agents known to cause cancer in humans. Relevant information was analyzed on all the agents classified in Group 1 in Monographs up to and including Volume 109, most of which are reviewed in Volume 100A-F. A database of tumor sites seen in humans and animals was used to examine the degree of concordance by use of an anatomically based tumor classification scheme. The analysis of mechanistic aspects of the IARC Group 1 agents focused on 10 key characteristics of human carcinogens developed during the course of this work. Genotoxicity was the most prevalent mechanistic characteristic, consistent with the process of carcinogenesis necessarily involving genomic changes. The IARC concordance database represents a useful source of information for comparing animal and human data with respect to the tumors caused in different species. The results of the mechanistic analysis can provide a basis for future efforts to categorize mechanistic data for carcinogens through a systematic review process. These reviews and analyses were discussed during a two-part Workshop on Tumour Site Concordance and Mechanisms of Carcinogenesis convened by IARC. This Scientific Publication is the report of that Workshop and of subsequent work by the participants, both individually and collectively. This publication also presents a statement of consensus among the Workshop participants, which summarizes the main findings and their implications for human cancer risk assessment.

This book aims to present current state of understanding of the role of metals in human health and disease. As it will be difficult to cover all of the metals, about two scores of them, the authors will instead provide a detailed analysis of a select set of essential (Calcium, Magnesium, Selenium, Iron, copper and Zinc) and non-essential metals (Nickel, Chromium, Cadmium and Arsenic, Tungsten and Asbestos). Each chapter will have a dedicated section focusing on the binary role that some of these metals play, their carcinogenic and cancer therapeutics, by integrating epidemiological, experimental evidence with special emphasis and focus on molecular mechanisms involved in these processes. The biological analysis will also include emerging lines of evidence such as micro RNAS, kinase families, receptors, endoplasmic, mitochondrial players and epigenetics. As part of integrating the human, experimental and mechanistic data, as well as a detailed analysis into the modes of action for different cancer outcomes will be discussed in each chapter wherever deemed feasible. These approaches are ones in which no other book in this area has attempted to do.

Focuses on the state of scientific knowledge about the carcinogenicity of metals, their compounds and other inorganic substances. It provides a valuable guide for chemists involved in risk assessment, health and safety and toxicology.