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Mismatch Repair Deficiency in Gastrointestinal Tumors and Its Implications for Lynch Syndrome Screening Shigeki Sekine 1 1Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo Keyword: ミスマッチ修復 , Lynch症候群 , マイクロサテライト不安定性 , 免疫組織化学染色 , Lynch-like syndrome pp.1579-1587
Published Date 2023/12/25
DOI https://doi.org/10.11477/mf.1403203422
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 In addition to microsatellite instability testing, immunohistochemistry for mismatch repair proteins has recently become available for clinical use. While both these tests are highly sensitive and specific in detecting mismatch repair deficiency, each of them has specific characteristics that should be acknowledged for their appropriate use. These tests were primarily introduced for predicting responses to immune checkpoint inhibitors ; however, they also play a crucial role in Lynch syndrome screening. This study aimed to discuss the distinctive features of mismatch repair status tests, molecular backgrounds of mismatch repair deficiency in gastrointestinal tumors, and diagnostic approaches for Lynch syndrome.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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