Article Publish Status: FREE
Abstract Title:

Xanthohumol inhibits angiogenesis by suppressing nuclear factor-κB activation in pancreatic cancer.

Abstract Source:

Cancer Sci. 2017 Nov 9. Epub 2017 Nov 9. PMID: 29121426

Abstract Author(s):

Kenta Saito, Yoichi Matsuo, Hiroyuki Imafuji, Tomotaka Okubo, Yuzo Maeda, Takafumi Sato, Tomoya Shamoto, Ken Tsuboi, Mamoru Morimoto, Hiroki Takahashi, Hideyuki Ishiguro, Shuji Takiguchi

Article Affiliation:

Kenta Saito


Xantohumol, a prenylated chalcone from hops (Humulus lupulus L.), has been shown to inhibit proliferation in some cancers. However, little is known regarding the effects of xanthohumol in pancreatic cancer. We have previously reported that activation of the transcription factor nuclear factor-κB (NF-κB) plays a key role in angiogenesis in pancreatic cancer. In this study, we investigated whether xanthohumol inhibited angiogenesis by blocking NF-κB activation in pancreatic cancer in vitro and in vivo. We initially confirmed that xanthohumol significantly inhibited proliferation and NF-κB activation in pancreatic cancer cell lines. Next, we demonstrated that xanthohumol significantly suppressed the expression of vascular endothelial growth factor (VEGF) and interleukin-8 (IL-8) at both the mRNA and protein levels in pancreatic cancer cell lines. We also found that coculture with BxPC-3 cells significantly enhanced tube formation in human umbilical vein endothelial cells, and treatment with xanthohumol significantly blocked this effect. In vivo, the volume of BxPC-3 subcutaneous xenograft tumors was significantly reduced in mice treated with weekly intraperitoneal injections of xanthohumol. Immunohistochemistry revealed that xanthohumol inhibited Ki-67 expression, CD31-positive microvessel density, NF-κB p65 expression, and VEGF and IL-8 levels. Taken together, these results showed, for the first time, that xanthohumol inhibited angiogenesis by suppressing NF-κB activity in pancreatic cancer. Accordingly, xanthohumol may represent a novel therapeutic agent for the management of pancreatic cancer.

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