Ornithine decarboxylase and polyamines in colorectal neoplasia and mucosa.
Cancer Epidemiol Biomarkers Prev
; 2(4): 369-74, 1993.
Article
em En
| MEDLINE
| ID: mdl-8348060
ABSTRACT
Ornithine decarboxylase (ODC) and polyamines are intimately involved in normal cellular proliferation and are likely to play a role in carcinogenesis. ODC activity and polyamine content were measured in tissue samples obtained during colonoscopy from 48 benign neoplastic polyps (20 tubular adenomas; 28 villous adenomas), 18 cancers (including 5 malignant polyps), and adjacent mucosa. ODC activity in polyp and cancer tissue specimens was higher than in adjacent mucosa in 75 and 83% of pairs, respectively. Similarly, putrescine, spermidine, and spermine contents were higher in the majority of polyps and cancers compared to adjacent mucosa. ODC activity and polyamine content in colonic mucosa from 10 patients without a history of colorectal neoplasia were not different from adjacent mucosal values in the patients with neoplasia. In conclusion, ODC and polyamines are elevated in the majority of colorectal neoplasms, but amounts in normal mucosa do not differentiate between patients with cancer, benign neoplastic polyps, and normal subjects.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ornitina Descarboxilase
/
Poliaminas
/
Neoplasias Retais
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Neoplasias do Colo
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Mucosa Intestinal
Limite:
Aged
/
Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
1993
Tipo de documento:
Article