Front Matter

Cold Spring Harbor Laboratory selected the theme of Metabolism and Disease for the historic 76th Symposium in the series. The decision to focus the 2011 Symposium on this topic reflects the growing convergence of lines of research in fields ranging from cancer biology to aging, demonstrating that key metabolic pathways regulate energy homeostasis in cells, organs, and whole organisms, and that many human diseases share profound dysfunction in metabolism at a molecular level. Previous Symposia that have been devoted in all or in part to metabolism and its dysfunction include Biological Oxidations (1939), The Mammalian Fetus: Physiological Aspects of Development (1954), Cellular Regulatory Mechanisms (1961), The Cardiovascular System (2002), and Clocks and Rhythms (2007). A key theme of early 20th-century investigation, cellular bioenergetics, yielded a vast body of biochemical knowledge about key energy transformation processes such as oxidative phosphorylation and glycosylation. In contrast, the molecular biology revolution of the last half century has focused largely on how cells and organisms process information stored in nucleic acid and how these mechanisms are regulated during fundamental processes, such as cell division and development, or adapt and respond to external conditions. Tremendous light has been shed on processes such as DNA replication, transcription, RNA processing, and protein translation and, more recently, on signaling cascades, developmental lineages, and disease progression (e.g., oncogenesis). Much of this work has been done with little regard for the metabolic state of the cell, which could be safely ignored while the reductionist approach yielded such powerful results. But energy consumption at the cellular and organismal level is once again becoming a major theme of modern research, because imbalances in these processes are increasingly understood to be major contributory factors in many diseases that significantly impact society, including obesity, cardiovascular disease, diabetes, metabolic disorders, and cancer. Moreover, energy homeostasis appears to have a significant impact on the aging process itself. The Symposium aimed to integrate a very broad field of investigative effort, bringing together advances in our understanding of energy intake, consumption, and storage (diet, exercise, and fat), oxygen regulation and hypoxia, circadian rhythms, and life span/aging. The Symposium explored metabolism at molecular (gene expression, posttranslational modifications, protein turnover, cofactors and integrators, hormones, and signals), organellar (mitochondria), cellular, organ system (cardiovascular, bone), and organismal (timing and life span) scales. Diseases impacted by metabolic imbalance or dysregulation that were covered in detail included diabetes, obesity, metabolic syndrome, and cancer. New and emerging technologies were presented for simultaneous monitoring of hundreds of metabolites that allow for sophisticated sampling of the metabolic state of cells. Because the Symposium covered such a broad field, by necessity much excellent work could not be included, and instead, the Proceedings should be viewed as a necessarily eclectic collection of some of the most interesting and stimulating work that came to the organizers’ attention during the 18 months before the meeting.

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