Studies from University of Wisconsin, Department of Surgery yield new information about cancer therapy
2007 NOV 19 -- A new study, 'Suberoyl bishydroxamic acid inhibits cellular proliferation by inducing cell cycle arrest in carcinoid cancer cells,' is now available. According to a study from the United States, "Carcinoid cancers arise from the neuroendocrine cell system of the gastrointestinal tract, lungs, and other organs. Hepatic metastases are common, and patients often suffer from endocrinopathies secondary to tumor secretion of various hormones and peptides." "As complete surgical resection is often not possible because of widespread disease, new therapeutic and palliative treatments are needed. In this study, we characterized the effects of suberoyl bishydroxamic acid (SBHA), a histone deacetylase inhibitor, on the growth and neuroendocrine phenotype of carcinoid cancer cells. SBHA treatment of human gastrointestinal and pulmonary carcinoid cancer cells resulted in a dose-dependent inhibition of cell proliferation. Western blot analysis showed a decrease in cyclin D1 and an increase in p21 and p27, indicating that the mechanism of this growth inhibition is cell cycle arrest. Furthermore, SBHA treatment suppressed two neuroendocrine tumor markers, chromogranin A and achaete-scute complex-like 1. These changes in the growth and neuroendocrine phenotype of carcinoid cells were associated with activation of the Notch1 signaling cascade," wrote D.Y. Greenblatt and colleagues, University of Wisconsin, Department of Surgery. The researchers concluded: "We conclude that SBHA shows promise as a potential anticancer agent for the treatment of patients with advanced carcinoid tumor disease." Greenblatt and colleagues published their study in the Journal of Gastrointestinal Surgery (Suberoyl bishydroxamic acid inhibits cellular proliferation by inducing cell cycle arrest in carcinoid cancer cells. Journal of Gastrointestinal Surgery, 2007;11(11):1515-20; discussion 1520). For more information, contact D.Y. Greenblatt, University of Wisconsin, University of Wisconsin, Dept. of Surgery, Madison, WI 53792 USA.. Publisher contact information for the Journal of Gastrointestinal Surgery is: Elsevier Science Inc., 360 Park Avenue South, New York, NY 10010-1710, USA. Keywords: United States, Madison, Cancer Therapy, Cancer, Carcinoid, Gastroenterology, Gastrointestinal Surgery, Oncology, Therapy, Treatment. This article was prepared by Biotech Business Week editors from staff and other reports. Copyright 2007, Biotech Business Week via NewsRx.com.
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