Treatment of Hepatocellular Carcinoma Combining Sorafenib and Transarterial Locoregional Therapy: State of the Science |
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Authors: | Joshua L. Weintraub Riad Salem |
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Affiliation: | 1. Department of Radiology, Columbia University, New York, New York;2. Department of Radiology, Northwestern University Feinberg School of Medicine, 676 N. St. Clair St., Suite 800, Chicago, IL 60611 |
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Abstract: | The potential for increased efficacy with combined transarterial chemoembolization and sorafenib is a topic of increased interest to specialists who care for patients with unresectable hepatocellular carcinoma. There is strong scientific rationale for combination therapy: transarterial chemoembolization produces ischemia and stimulates hypoxia-inducible factor–1α, resulting in a local and systemic upregulation of vascular endothelial growth factor (VEGF), which can increase tumor angiogenesis. This upregulation can theoretically be counteracted with the multikinase inhibitor sorafenib, which is thought to act directly on platelet-derived growth factor, Raf kinase, and VEGF receptors. The potential of this approach has not yet been fully realized in clinical trials, and many unanswered questions remain. This review article discusses the state of the science of arterial locoregional therapies and sorafenib. |
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