Abstract:
:Several retrospective studies have shown that a high level of microsatellite instability (MSI-H) is an important prognostic factor of a more favorable outcome in stage II and III colorectal cancer (CRC) patients. In this study, three commonly used polymerase chain reaction (PCR)-based MSI analysis techniques were compared (polyacrylamide gel electrophoresis followed by silver-staining [SSPAGE], fluorescence capillary electrophoresis [FCE], and denaturing high-performance liquid chromatography [DHPLC]) on a limited group of CRC patients, to identify the most optimal detection technique. Pathology blocks of 26 CRC patients were subjected to microdissection and the Bethesda reference panel was used for MSI analysis. Considering the samples analyzed by both SSPAGE and FCE, 8.7% were MSI-H, 8.7% were MSI-L, and 82.6% were MSS using SSPAGE. FCE resulted in 16% MSI-H, 4% MSI-L, and 80% MSS. Due to difficulties in analyzing the dinucleotide markers on DHPLC, we only analyzed the mononucleotide markers with this technique. The results were 100% concordant to those obtained by FCE. SSPAGE is time consuming, subjective, and less user-friendly and interpretable. DHPLC was not feasible due to interpretation difficulties for the dinucleotide markers. We recommend the use of FCE to analyze MSI status. This technique is sensitive, reproducible, user-friendly and leads to easy interpretation and high-throughput.
journal_name
J Clin Lab Analjournal_title
Journal of clinical laboratory analysisauthors
Deschoolmeester V,Baay M,Wuyts W,Van Marck E,Pelckmans P,Lardon F,Vermorken JBdoi
10.1002/jcla.20097subject
Has Abstractpub_date
2006-01-01 00:00:00pages
52-61issue
2eissn
0887-8013issn
1098-2825journal_volume
20pub_type
杂志文章abstract::Gross cystic breast disease (GCBD) is the most common benign disease of the human female breast, and patients with GCBD have an increased risk of breast cancer. The aim of this study was to evaluate the distribution inside apocrine cells and in breast cyst fluids aspirated from gross cysts of prostate-specific antigen...
journal_title:Journal of clinical laboratory analysis
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abstract:BACKGROUND:Delta neutrophil index (DNI) is a new inflammatory marker and the present study aimed to evaluate the predictive value of the DNI for the presence of a perforation in elderly with acute appendicitis. METHODS:This retrospective observational study was conducted on 108 consecutive elderly patients (≥65 years ...
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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更新日期:1999-01-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1033
更新日期:2001-01-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
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更新日期:2011-01-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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journal_title:Journal of clinical laboratory analysis
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