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Ever since arbovirus infections became known and their relative importance assessed, experiments were designed to elucidate the mode of transmission and the most important natural hosts responsible for perpetuating the infection in nature. Human infections and the disease in wild rodents, birds, and domestic animals were studied in relation to viremia and distribution of the infectious agent in the organism. With increasing epidemiological studies it became apparent that the neural manifestations of the disease are very uncommon, confined only to a small percentage of individuals of the most susceptible species. Various factors have been proposed to explain why in certain instances the virus becomes establish ed in the central nervous system and causes a serious or lethal disease. For example, differences in the virulence of the virus strains, varying susceptibility of individuals of one species, or intercurrent circumstances facilitating access of the virus to the central nervous system were alleged. Also, various possible routes of entry of the virus into the brain and spinal cord have been considered.
Continuous cell lines derived from human cancers are the mostwidely used resource in laboratory-based cancer research. The first 3 volumes of this series on Human Cell Culture are devoted to these cancer cell lines. The chapters in these first 3 volumes have a common aim. Their purpose is to address 3 questions offundamental importance to the relevanceof human cancer cell lines as model systems of each type of cancer: 1. Do the cell lines available accurately represent the clinical presentation? 2. Do the cell lines accurately represent the histopathology of the original tumors? 3. Do the cell lines accurately represent the molecular genetics of this type of cancer? The cancer cell lines ava...
Teil II des Verhandlungsberichtes enthält die Vorträge und Diskussionen der Jahesversmmlung 1990. Er spiegelt die Ergebnisse in den verschiedenen Gebieten klinischer und theoretischer Forschung in der Hals-Nasen-Ohren-Heilkunde wider.
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