Galanin is up-regulated in colon adenocarcinoma.

Galanin is up-regulated in colon adenocarcinoma. Research Abstract Details 

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Galanin is up-regulated in colon adenocarcinoma. Abstract Text:

Kye Young Kim,Mee K Kee,Seon Ah Chong,Myeong Jin Nam,Kye Young Kim,Mee K Kee,Seon Ah Chong,Myeong Jin Nam,

The early diagnosis of colorectal cancer and the early detection of recurrence are central to effective treatment, as prognosis is directly related to the stage of the disease. When colorectal cancer is diagnosed at an early, localized stage, 5-year survival is 90%. There is substantial interest in the identification of circulating human tumor-derived proteins in serum for the purposes of early cancer diagnosis. We have implemented an approach based on the analysis of microarray data for the identification of tumor proteins that may have utility as biomarkers in colon cancer. Expression analysis of microarray data obtained from a variety of 290 tumors and normal tissues revealed that galanin was maximally expressed in colon cancer. These findings were corroborated by real-time quantitative PCR, in which the colon cancer cell lines LOVO, HCT15, SW480, and SW620 cell showed significantly higher levels of galanin expression than did noncolon cancer cell lines. To evaluate galanin as a potential biomarker of colon cancer, a preliminary "training" set of serum from 40 healthy donors and 55 colon cancer patients was analyzed by ELISA. The data pattern was confirmed by an independent set of 90 masked serum samples: 24 from healthy donors and 66 from colon cancer patients. This result yielded a sensitivity of 69.7% [95% confidence interval (95% CI), 57.1-80.4], specificity of 75.0% (95% CI, 53.3-90.2), and positive predictive value of 88.5% (95% CI, 76.6-95.7). The galanin expression level was significantly increased with tumor size and tumor stage. These findings justify a prospective assessment of serum galanin protein as a screening tool for colon cancer. (Cancer Epidemiol Biomarkers Prev 2007;16(11):2373-8).

Galanin is up-regulated in colon adenocarcinoma. Publishing Authors By Initials

KY Kim,MK Kee,SA Chong,MJ Nam,KY Kim,MK Kee,SA Chong,MJ Nam,

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Galanin is up-regulated in colon adenocarcinoma. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Cancer epidemiology, biomarkers & prevention : a p

VOLUME: 16

Page Numbers: 2373-8

Journal Abbreviation: Cancer Epidemiol. Biomarkers P

ISSN: 1055-9965

DAY: 16

MONTH: Nov

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: Department of Biological Science, Gachon University of Medicine and Science, 534-2 Yeonsu-dong Yeonsu-gu, Incheon 406-799, Korea. genetx@hanmail.net.

Country: United States

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MEDLINETA: Cancer Epidemiol Biomarkers Pr

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