The landscape of immunocytochemistry has significantly evolved in past years. Once a laborious technique with limited application, the introduction of new detection systems and instrumentation has facilitated the widespread use of immunocytochemical methods. In the post-genomic era, the use of immunocytochemical methods has grown to include the identification of a broad spectrum of antigens including proteins, carbohydrates and lipids from virtually every organism. In Immunocytochemical Methods and Protocols, Third Edition, expert researchers explore the modern methods employed in the field today, now widely used to identify, in situ, various components of cells and tissues in both normal and pathological conditions, and to demonstrate the localization of subcellular components. Chapters provide methods that are designed to be general in their application and to appeal to investigators across all disciplines, including those in research and clinical settings. Composed in the highly successful Methods in Molecular Biologya series format, chapters contain a brief introduction, step-by-step methods, a list of necessary materials, and a Notes section which shares tips on troubleshooting and avoiding known pitfalls. Comprehensive and ground-breaking, Immunocytochemical Methods and Protocols, Third Edition, brings together a variety of methods that are normally limited to applications in a specific area, providing a unique and vital guide for researchers and clinicians alike.