Celecoxib Treatment Alters the Gene Expression Profile of Normal Colonic Mucosa
1382 Celecoxib Treatment Alters the Gene Expression Profile of Normal Colonic Mucosa Oleg K. Glebov,1 Luz M. Rodriguez,1 Patrick Lynch,4 Sherri Patterson,4 Henry Lynch,5 Kenneth Nakahara,1 Jean Jenkins,1 Janet Cliatt,1 Casey-Jo Humbyrd,1 John DeNobile,3 Peter Soballe,3 Steven Gallinger,6 Aby Buchbinder,7 Gary Gordon,8 Ernest Hawk,2 and Ilan R. Kirsch1 1Genetics Branch, Center for Cancer Research; 2Division of Cancer Prevention, National Cancer Institute; 3Surgery Department, National Naval Medical Center, Bethesda, Maryland; 4University of Texas M.D. Anderson Cancer Center, Houston, Texas; 5Creighton University, Omaha, Nebraska; 6University of Toronto, Toronto, Ontario, Canada; 7Pharmacia, Peapack, New Jersey; and 8Ovation Pharma, Lincolnshire, Illinois Abstract A clinical trial was recently conducted to evaluate the safety Twenty-three of 25 pairs of colon biopsies taken before and efficacy of a selective inhibitor of cyclooxygenase-2 and after celecoxib treatment can be classified correctly (celecoxib) in hereditary nonpolyposis colon cancer by the pattern of gene expression in a leave-one-out patients. In a randomized, placebo-controlled phase I/II cross-validation. Immune response, particularly T- and B- multicenter trial, hereditary nonpolyposis colon cancer lymphocyte activation and early steps of inflammatory patients and gene carriers received either celecoxib at one reaction, cell signaling and cell adhesion, response to stress, of two doses or placebo. The goal was to evaluate the effects transforming growth factor-B signaling, and regulation of of these treatment arms on a number of endoscopic and apoptosis, are the main biological processes targeted by tissue-based biomarker end points after 12 months of celecoxib as shown by overrepresentation analysis of the treatment.
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