Abstract：
:Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal malignancies. The genomic landscape of the PDAC genome features four frequently mutated genes (KRAS, CDKN2A, TP53, and SMAD4) and dozens of candidate driver genes altered at low frequency, including potential clinical targets. Circulating cell-free DNA (cfDNA) is a promising resource to detect and monitor molecular characteristics of tumors. In the present study, we determined the mutational status of KRAS in plasma cfDNA using multiplex picoliter-droplet digital PCR in 259 patients with PDAC. We constructed a novel modified SureSelect-KAPA-Illumina platform and an original panel of 60 genes. We then performed targeted deep sequencing of cfDNA and matched germline DNA samples in 48 patients who had ≥1% mutant allele frequencies of KRAS in plasma cfDNA. Importantly, potentially targetable somatic mutations were identified in 14 of 48 patients (29.2%) examined by targeted deep sequencing of cfDNA. We also analyzed somatic copy number alterations based on the targeted sequencing data using our in-house algorithm, and potentially targetable amplifications were detected. Assessment of mutations and copy number alterations in plasma cfDNA may provide a prognostic and diagnostic tool to assist decisions regarding optimal therapeutic strategies for PDAC patients.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Takai E,Totoki Y,Nakamura H,Morizane C,Nara S,Hama N,Suzuki M,Furukawa E,Kato M,Hayashi H,Kohno T,Ueno H,Shimada K,Okusaka T,Nakagama H,Shibata T,Yachida Sdoi
10.1038/srep18425subject
Has Abstractpub_date
2015-12-16 00:00:00pages
18425issn
2045-2322pii
srep18425journal_volume
5pub_type
临床试验,杂志文章abstract：:Insufficient glenoid fixation is one of the main reasons for failure in total shoulder arthroplasty. This is predominantly caused by the inert nature of the ultra-high molecular weight polyethylene (UHMWPE) used in the glenoid component of the implant, which makes it difficult to adhesively bind to bone cement or bone...
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2015-08-04 00:00:00
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pub_type： 杂志文章
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更新日期：2016-01-29 00:00:00
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更新日期：2015-11-02 00:00:00
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pub_type： 杂志文章
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更新日期：2014-01-06 00:00:00
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pub_type： 杂志文章
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更新日期：2019-11-29 00:00:00
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pub_type： 杂志文章
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pub_type： 临床试验,杂志文章
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pub_type： 历史文章,杂志文章
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pub_type： 杂志文章
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更新日期：2016-04-26 00:00:00
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更新日期：2019-12-27 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2016-03-22 00:00:00
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