期刊
HYBRIDOMA
卷 19, 期 4, 页码 281-286出版社
MARY ANN LIEBERT INC PUBL
DOI: 10.1089/027245700429828
关键词
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资金
- NCI NIH HHS [CA69257] Funding Source: Medline
We have previously demonstrated a link between alpha 2,6-Sialyltransferase (alpha 2,6-ST; E.C. 2.4.99.1) expression and differentiation of colon tumors. So far, information is not available relative to the expression of alpha 2,6-ST in tumors and the survival of patients with colorectal cancer. We have examined the expression of alpha 2,6-ST in a variety of colorectal adenocarcinomas (n = 46) at different stages of differentiation (G(1) to G(3)) by immunoperoxidase assay using monoclonal antibody (MAb) 6B9, Clinical outcome of the patients in a 5-year follow-up study has been correlated with the expression of alpha 2,6-ST in tumors surgically removed from the same patients. No significant difference in the alpha 2,6-ST expression was noted when age, sex, and tumor locations (colon, rectum) were included as parameters. However, 52% of the moderate (G(2)) and well-differentiated (G(1)) adenocarcinomas showed stronger alpha 2,6-ST expression compared with poorly differentiated (G(3)) adenocarcinomas, Notably, absence to moderate levels of tumor alpha 2,6-ST expression was correlated with 100% survival in patients with stage I and II tumors compared with 64% survival in patients with strong tumor alpha 2,6-ST expression (p < 0.01), These studies suggest a negative correlation between the expression of alpha 2,6-ST in tumors and a good clinical outcome in colorectal cancer patients.
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