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Abstract Title:

Resveratrol, a red wine polyphenol, suppresses pancreatic cancer by inhibiting leukotriene A₄hydrolase.

Abstract Source:

Cancer Res. 2010 Dec 1;70(23):9755-64. Epub 2010 Oct 15. PMID: 20952510

Abstract Author(s):

Naomi Oi, Chul-Ho Jeong, Janos Nadas, Yong-Yeon Cho, Angelo Pugliese, Ann M Bode, Zigang Dong

Article Affiliation:

The Hormel Institute, University of Minnesota, Austin, Minnesota 55912, USA.

Abstract:

The anticancer effects of red wine have attracted considerable attention. Resveratrol (3,5,4'-trihydroxy-trans -stilbene) is a well-known polyphenolic compound of red wine with cancer chemopreventive activity. However, the basis for this activity is unclear. We studied leukotriene A(4) hydrolase (LTA(4)H) as a relevant target in pancreatic cancer. LTA(4)H knockdown limited the formation of leukotriene B(4) (LTB(4)), the enzymatic product of LTA(4)H, and suppressed anchorage-independent growth of pancreatic cancer cells. An in silico shape similarity algorithm predicted that LTA(4)H might be a potential target of resveratrol. In support of this idea, we found that resveratrol directly bound to LTA(4)H in vitro and in cells and suppressed proliferation and anchorage-independent growth of pancreatic cancer by inhibiting LTB(4) production and expression of the LTB(4) receptor 1 (BLT(1)). Notably, resveratrol exerted relatively stronger inhibitory effects than bestatin, an established inhibitor of LTA(4)H activity, and the inhibitory effects of resveratrol were reduced in cells where LTA(4)H was suppressed by shRNA-mediated knockdown. Importantly, resveratrol inhibited tumor formation in a xenograft mouse model of human pancreatic cancer by inhibiting LTA(4)H activity. Our findings identify LTA(4)H as a functionally important target for mediating the anticancer properties of resveratrol.

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Sayer Ji
Founder of GreenMedInfo.com

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Easy Turmeric recipes + The Dark Side of Wheat

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