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Original Article

Artificial Liver Support: State of the Art

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Pages 101-114 | Published online: 08 Jul 2009
 

Abstract

Severe liver disease is very often life-threatening and dramatically diminishes quality of life. Liver support systems based on detoxification alone have proven ineffective because they cannot correct biochemical disorders. An effective artificial liver support system should be capable of carrying out the liver's essential processes, such as synthetic and metabolic functions, detoxification, and excretion. It should be capable of sustaining patients with fulminant hepatic failure, preparing patients for liver transplantation when a donor liver is not readily available (i.e., bridge to transplantation), and improving the survival and quality of life for patients for whom transplantation is not a therapeutic option. Recent advances in cell biology, tissue culture techniques, and biotechnology have led the way for the potential use of isolated hepatocytes in treating an array of liver disorders. Isolated hepatocytes may be transplanted to replace liver-specific deficiencies or as an important element of an auxiliary hybrid, bioartificial extracorporeal liver support device, which are important therapeutic applications for treating severe liver disease. Although several hepatocyte-based liver support systems have been proposed, there is no current consensus on its eventual design configuration. Furthermore, application of tissue engineering technology, based on cell-surface interaction studies proposed by our group and others, has enhanced interest in the development of highly efficient hybrid, bioartificial, liver support devices.

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