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Eur J Cancer. 1994;30A(8):1113-7.

c-myc mRNA overexpression is associated with lymph node metastasis in colorectal cancer.

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1
Department of Surgery I, Oita Medical University, Japan.

Abstract

To elucidate the relationship between oncogene overexpression and malignant potential of colorectal cancer, the expression of three genes, c-myc, c-fos and c-Ki-ras was examined. Northern blot hybridisation was performed on fresh tissues excised from 35 patients with primary colorectal cancer. Overexpression of c-myc mRNA was evident in 25 of the patients (71%). Tumours with c-myc overexpression had a significantly higher frequency of lymph node metastasis than did those without (68 versus 20%, P < 0.05). The survival rate tended to be poorer (P = 0.06) in patients with c-myc overexpression (79% for 3 years) than in those without it (100%). We found no significant relationship between overexpression of the other two genes and pathological features. These findings suggest that c-myc overexpression is one parameter which can be used to determine the malignant potential of colorectal cancer.

PMID:
7654441
[Indexed for MEDLINE]
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