Cooperative effects of matrix metalloproteinase and cyclooxygenase-2 inhibition on intestinal adenoma reduction

被引:28
作者
Wagenaar-Miller, RA
Hanley, G
Shattuck-Brandt, R
DuBois, RN
Bell, RL
Matrisian, LM
Morgan, DW
机构
[1] Vanderbilt Univ, Dept Canc Biol, Nashville, TN 37232 USA
[2] Vanderbilt Univ, Dept Med, Nashville, TN 37232 USA
[3] TAP Pharmaceut Prod Inc, Lake Forest, IL 60045 USA
[4] Abbott Labs, Abbott Pk, IL 60064 USA
[5] Vanderbilt Univ, Div Anim Care, Nashville, TN 37232 USA
关键词
matrix metalloproteinase; cyclooxygenase-2; multiple intestinal neoplasia; colon cancer;
D O I
10.1038/sj.bjc.6600867
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Matrix metalloproteinases (MMPs) and cyclooxygenase-2 (COX-2) are expressed in both sporadic and familial adenomatous colonic polyps and tumours and have been independently shown to play causal roles in intestinal tumour formation in mouse models of colon cancer. The apparent roles of these enzymes in intestinal tumorigenesis led us to examine, in the Min mouse model of colon cancer, if selective COX-2 and MMP inhibitors provide additive or synergistic therapeutic benefits in intestinal tumour prevention. The broad-spectrum MMP inhibitor (A-177430; MMPI) and the selective COX-2 inhibitor (A-285969; COX-21) both showed dose-dependent inhibition of the number of adenomas in Min mice. Using suboptimal doses, the MMPI reduced tumour multiplicity by 32%, the COX-21 by 48% and, both agents in combination resulted in a 67% decrease compared to control demonstrating a cooperative effect on intestinal tumorigenesis. Apoptosis, proliferation, and angiogenesis were assayed in tumors from each treatment group. These agents in combination allowed for a lowered dosage to be administered to achieve significant biological effects. Clinically, this could potentially reduce side effects associated with currently used MMP and COX-2 inhibitors. Together, these compounds could represent an easily tolerated chemopreventive approach.
引用
收藏
页码:1445 / 1452
页数:8
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