covers the major mechanisms and effects of toxic substances on the immune system, and on the regulation of gene expression. This includes the aims, opportunities, clinical applications, recent developments, and emerging and future trends. The book begins with a discussion of the systemic approach to toxicants, but also looks at current genomic tools used to assess immunotoxicity and systems biology methods used in immuno-toxicogenomics. Other topics include genomic expression profiling, gene expression as a tool to understand and predict immunotoxicity, immunotox-icogenomics as a screening tool, and the assessment and analysis of Immunotoxicogenomics data. This book provides a collaborative, multidisciplinary approach for researchers in the fields of toxicology, genetics, immunology, and others engaged in the study on the effects of toxic substances on immune responses.