Journal
EUROPEAN JOURNAL OF CANCER
Volume 38, Issue 7, Pages 858-866Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0959-8049(02)00041-2
Keywords
colon; cancer; familial; sporadic; microsatellite instability; HNPCC
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Funding
- NCI NIH HHS [U01 CA097735, 1-U-01-CA74778] Funding Source: Medline
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Attempts to classify colorectal cancer into subtypes based upon molecular characterisation are overshadowed by the classical stepwise model in which the adenoma-carcinoma sequence serves as the morphological counterpart. Clarity is achieved when cancers showing DNA microsatellite instability (MSI) are distinguished as sporadic MSI-low (MSI-L), sporadic MSI-high (MSI-H) and hereditary non-polyposis colorectal cancer (HNPCC). Divergence of the 'methylator' pathway into MSI-L and MSI-H is at least partly determined by the respective silencing of MGMT and hMLH1. Multiple differences can be demonstrated between sporadic and familial (HNPCC) MSI-H colorectal cancer with respect to early mechanisms, evolution, molecular characterisation, demographics and morphology. By acknowledging the existence of multiple pathways, rapid advances in the fields of basic and translational research will occur and this will lead to improved strategies for the prevention, early detection and treatment of colorectal cancer. (C) 2002 Elsevier Science Ltd. All rights reserved.
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