کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5525041 1546544 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of pathogenic retrotransposon insertions in cancer predisposition genes
ترجمه فارسی عنوان
شناسایی موارد تزریق رتروترانسپوزون های بیماریزا در ژن های مستعد ابتلا به سرطان
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی تحقیقات سرطان
چکیده انگلیسی


- NGS accelerates detection of RE insertions as part of a comprehensive testing strategy.
- 37 unique RE insertions were identified in 10 cancer predisposition genes, including 17 in BRCA2.
- Overall, 211 individuals who had hereditary cancer testing were found to carry an RE insertion.

Cancer risks have been previously reported for some retrotransposon element (RE) insertions; however, detection of these insertions is technically challenging and very few oncogenic RE insertions have been reported. Here we evaluate RE insertions identified during hereditary cancer genetic testing using a comprehensive testing strategy. Individuals who had single-syndrome or pan-cancer hereditary cancer genetic testing from February 2004 to March 2017 were included. RE insertions were identified using Sanger sequencing, Next Generation Sequencing, or multiplex quantitative PCR, and further characterized using targeted PCR and sequencing analysis. Personal cancer history, ancestry, and haplotype were evaluated. A total of 37 unique RE insertions were identified in 10 genes, affecting 211 individuals. BRCA2 accounted for 45.9% (17/37) of all unique RE insertions. Several RE insertions were detected with high frequency in populations of conserved ancestry wherein up to 100% of carriers shared a high degree of haplotype conservation, suggesting founder effects. Our comprehensive testing strategy resulted in a substantial increase in the number of reported oncogenic RE insertions, several of which may have possible founder effects. Collectively, these data show that the detection of RE insertions is an important component of hereditary cancer genetic testing and may be more prevalent than previously reported.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cancer Genetics - Volumes 216–217, October 2017, Pages 159-169
نویسندگان
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