Abstract:
:The chemopreventive effect of nitric oxide-releasing aspirin (NO-ASA) against gastrointestinal tumorigenesis was evaluated in Min (APC(Min/+)) mice. NO-ASA consists of a traditional ASA that bears covalently attached to it an NO-releasing moiety. Four groups (N=10) of six-week-old female C57BL/6J APC(Min/+) and the corresponding C57BL/6J(+/+) wild type mice were treated either with vehicle or NO-ASA 100 mg/kg/day intrarectally for 21 days. There were no signs of overt toxicity including gastrointestinal toxicity from NO-ASA. Vehicle treated Min mice had 24.7 +/- 3.8 tumors (mean +/- SEM) and NO-ASA treated Min mice had 10.1 +/- 1.4 tumors (59% reduction; P<0.001). Wild type mice showed no tumors. NO-ASA did not affect cell proliferation in small intestinal mucosa, determined by immunohistochemical staining for PCNA. Our findings establish the strong inhibitory effect of NO-ASA in intestinal carcinogenesis in the Min mouse and suggest that this agent merits further evaluation as a chemopreventive agent against colon cancer.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Williams JL,Kashfi K,Ouyang N,del Soldato P,Kopelovich L,Rigas Bdoi
10.1016/j.bbrc.2003.12.015subject
Has Abstractpub_date
2004-01-16 00:00:00pages
784-8issue
3eissn
0006-291Xissn
1090-2104pii
S0006291X03026032journal_volume
313pub_type
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