Predictors for High Microsatellite Instability in Patients with Colorectal Cancer Fulfilling the Revised Bethesda Guidelines
نویسندگان
چکیده
منابع مشابه
hMLH1 promoter methylation and BRAF mutations in high-frequency microsatellite instability colorectal cancers not fulfilling the revised Bethesda guidelines
PURPOSE Sporadic colorectal cancers with high-frequency microsatellite instability (MSI-H) are related to hypermethylation of mismatch repair (MMR) genes and a higher frequency of BRAF mutations than Lynch syndrome. We estimated the feasibility of hereditary colorectal cancer based on hMLH1 methylation and BRAF mutations. METHODS Between May 2005 and June 2011, we enrolled all 33 analyzed pat...
متن کاملRevised Bethesda Guidelines for hereditary nonpolyposis colorectal cancer (Lynch syndrome) and microsatellite instability.
Hereditary nonpolyposis colorectal cancer (HNPCC), also known as Lynch syndrome, is a common autosomal dominant syndrome characterized by early age at onset, neoplastic lesions, and microsatellite instability (MSI). Because cancers with MSI account for approximately 15% of all colorectal cancers and because of the need for a better understanding of the clinical and histologic manifestations of ...
متن کاملCOMMENTARY Revised Bethesda Guidelines for Hereditary Nonpolyposis Colorectal Cancer (Lynch Syndrome) and Microsatellite Instability
Asad Umar, C. Richard Boland, Jonathan P. Terdiman, Sapna Syngal, Albert de la Chapelle, Josef Rüschoff, Richard Fishel, Noralane M. Lindor, Lawrence J. Burgart, Richard Hamelin, Stanley R. Hamilton, Robert A. Hiatt, Jeremy Jass, Annika Lindblom, Henry T. Lynch, Paı̈vi Peltomaki, Scott D. Ramsey, Miguel A. Rodriguez-Bigas, Hans F. A. Vasen, Ernest T. Hawk, J. Carl Barrett, Andrew N. Freedman, Su...
متن کامل[Microsatellite instability among patients with colorectal cancer].
BACKGROUND In patients with colorectal carcinoma, insertions or deletions of short sequences of DNA, a phenomenon called microsatellite instability, are observed. AIM To look for microsatellite instability and mutations of MLH1 and MSH2 gene mutations in patients with colorectal carcinoma. MATERIAL AND METHODS Ten patients with sporadic colorectal carcinoma and 31 patients fulfilling criter...
متن کاملDetection of Microsatellite Instability by High-Resolution Melting Analysis in Colorectal Cancer
Background: Colorectal cancer (CRC) is the third most common cancer worldwide. microsatellite instability (MSI) is a molecular marker of a deficient mismatch repair system and happens in almost 15% of CRCs. Because of a wide frequency of MSI+ CRC in Iran compared to other parts of the world, the importance of screening for this type of cancer is highlighted. Methods: The most common MSI detecti...
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ژورنال
عنوان ژورنال: Anticancer Research
سال: 2018
ISSN: 0250-7005,1791-7530
DOI: 10.21873/anticanres.12800