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ADH-1 suppresses N-cadherin-dependent pancreatic cancer progression

International Journal of Cancer, ISSN: 0020-7136, Vol: 122, Issue: 1, Page: 71-77
2008
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Article Description

Pancreatic cancer is one of the most aggressive malignant diseases. We recently reported that N-cadherin plays a key role in tumor progression and metastasis in pancreatic cancer. For this study, we sought to determine if an N-cadherin-blocking peptide (ADH-1) could prevent N-cadherin-mediated tumor progression in a mouse model for pancreatic cancer. The effect of ADH-1 on N-cadherin-mediated cell scattering and migration on collagen I was examined using pancreatic cancer cells. We also examined the influence of ADH-1 on cell apoptosis. Furthermore, in vivo animal studies were performed using orthotopic injection of N-cadherin overexpressing BxPC-3 cells with or without ADH-1 treatment. BxPC-3 and Capan-1 cells exhibited increased expression of N-cadherin in response to collagen I. This increase in N-cadherin promoted cell scattering and migration in response to collagen I. ADH-1 prevented these changes, but did not inhibit upregulation of N-cadherin. TUNEL assays and immunoblots for caspase-3 showed that ADH-1 induced apoptosis in a concentration dependent and N-cadherin dependent manner in pancreatic cancer cells. ADH-1 treatment resulted in significant reductions in tumor growth and lung metastasis in a mouse model for pancreatic cancer. The N-cadherin antagonist, ADH-1 has significant antitumor activity against N-cadherin-expressing cells using in vitro assays and in an orthotopic mouse model for pancreatic cancer, raising the possibility that N-cadherin antagonists have therapeutic potential for the treatment of pancreatic cancer in humans. © 2007 Wiley-Liss, Inc.

Bibliographic Details

Shintani, Yasushi; Fukumoto, Yuri; Chaika, Nina; Grandgenett, Paul M; Hollingsworth, Michael A; Wheelock, Margaret J; Johnson, Keith R

Wiley

Medicine; Biochemistry, Genetics and Molecular Biology

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