Relationship of ornithine decarboxylase activity and human colon tumorigenesis.
Ornithine decarboxylase (ODC) activity was determined in tumorous lesions of the human colon, and the possibility of ODC acting as a marker of colon tumorigenesis investigated. In adenoma, ODC activity, in pmoles/h/mg protein, was 164 +/- 82 in tumorous tissue, which was higher than the 19.6 +/- 10.5 in macroscopically normal mucosa (control tissue) around the tumorous tissue, while 8.7 +/- 4.1 in normal colon mucosa. In carcinoma-in-adenoma and carcinoma, ODC activities in the control tissue were 15.3 +/- 11.9 and 27.5 +/- 15.0, respectively. The levels were respectively higher than in normal tissue. These results suggest ODC to be a potential indicator of colon tumorigenesis.
Takami
H
H
First Department of Surgery, Teikyo University School of Medicine, Tokyo.
Koudaira
H
H
Kodaira
S
S
D000230:Adenocarcinoma / Q000201:enzymology / Q000473:pathology; D000236:Adenoma / Q000201:enzymology / Q000473:pathology; D000368:Aged; D002277:Carcinoma / Q000201:enzymology / Q000473:pathology; D003106:Colon / Q000201:enzymology*; D003110:Colonic Neoplasms / Q000201:enzymology* / Q000473:pathology; D005260:Female; D006801:Humans; D007413:Intestinal Mucosa / Q000201:enzymology; D008297:Male; D008875:Middle Aged; D009955:Ornithine Decarboxylase / Q000378:metabolism* / Q000502:physiology
D009955:Ornithine Decarboxylase