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Updated: Aug 24, 2026

Development and Maintenance of a Preclinical Patient Derived Tumor Xenograft Model for the Investigation of Novel Anti-Cancer Therapies
Published on: September 30, 2016
Effect of LY293111 in combination with gemcitabine in colonic cancer
Rene Hennig1, Xian-Zhong Ding, Wei-Gang Tong
1Department of Surgery and Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Tarry Building, 4-711, 303 East Chicago Ave, Chicago, IL 60611, USA.
Abstract:
New adjuvant therapies are needed for the treatment of stage III colon cancer. The essential fatty acids, linoleic and arachidonic acid enhance tumorigenesis through the cyclooxygenase and lipoxygenase pathways. Leukotriene B4 (LTB4) is a product of 5-lipoxygenase (5-LOX) which has tumor-promoting effects. The LTB4 receptor antagonist, LY293111 inhibited tumor growth and induced apoptosis in vitro. The effectiveness of LY293111, alone and in combination with gemcitabine was investigated in a heterotopic xenograft model in athymic mice using HT29 and LoVo human colonic cancer cells. The combined therapy markedly inhibited tumor growth and could warrant consideration as a new therapeutic option.
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