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KMID : 0624620080410100685
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BMB Reports
2008 Volume.41 No. 10 p.685 ~ p.692
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Noninvasive molecular biomarkers for the detection of colorectal cancer
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Kim Hye-Jung
Yu Myeong-Hee
Kim Ho-Guen
Byun Jong-Hoe
Lee Cheol-Ju
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Abstract
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Colorectal cancer (CRC) is the third most common malignancy in the world. Because CRC develops slowly from removable precancerous lesions, detection of the disease at an early stage during regular health examinations can reduce both the incidence and mortality of the disease. Although sigmoidoscopy offers significant improvements in the detection rate of CRC, its diagnostic value is limited by its high costs and inconvenience. Therefore, there is a compelling need for the identification of noninvasive biomarkers that can enable earlier detection of CRC. Accordingly, many validation studies have been conducted to evaluate genetic, epigenetic or protein markers that can be detected in the stool or in serum. Currently, the fecal-occult blood test is the most widely used method of screening for CRC. However, advances in genomics and proteomics combined with developments in other relevant fields will lead to the discovery of novel non invasive biomarkers whose usefulness will be tested in larger validation studies. Here, noninvasive molecular biomarkers that are currently used in clinical settings and have the potential for use as CRC biomarkers are discussed.
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KEYWORD
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Biomarker, Colorectal cancer, Early detection, Fecal-occult blood test, Noninvasive marker, Proteomics
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