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A Blood-based Gene-expression Scoring System for Cancer Screening in Patients With Branch-duct Intraductal Papillary Mucinous Neoplasms.
Anticancer Research 2020 November
BACKGROUND: In patients with branch-duct intraductal papillary mucinous neoplasms (BD-IPMN), we aimed to develop a novel blood-based biomarker utilizing a gene-expression profile for the detection of pancreatic malignancies, such as IPMN-derived carcinoma (IPMC) or pancreatic ductal adenocarcinoma (PDAC).
PATIENTS AND METHODS: We enrolled 40 patients with pancreatic tumors (24 BD-IPMNs, four IPMCs and 12 PDACs) and identified the characteristic gene-expression profiles in pancreatic malignancies. Subsequently, we constructed a gene-expression scoring system for the proper diagnosis of pancreatic malignancies. The result was validated in 14 patients (five IPMNs, three IPMCs and six PDACs).
RESULTS: The scoring system utilizing the expression levels of 13 genes showed high diagnostic yield (sensitivity=94.0%, specificity=92.0% and area under the curve=0.94), which was confirmed in the validation set. Furthermore, its diagnostic yield was not reduced even in early-stage pancreatic malignancies (sensitivity=85.0%, specificity=93.0% and area under the curve=0.88).
CONCLUSION: We developed a blood-based gene expression scoring system for cancer screening in patients with BD-IPMNs.
PATIENTS AND METHODS: We enrolled 40 patients with pancreatic tumors (24 BD-IPMNs, four IPMCs and 12 PDACs) and identified the characteristic gene-expression profiles in pancreatic malignancies. Subsequently, we constructed a gene-expression scoring system for the proper diagnosis of pancreatic malignancies. The result was validated in 14 patients (five IPMNs, three IPMCs and six PDACs).
RESULTS: The scoring system utilizing the expression levels of 13 genes showed high diagnostic yield (sensitivity=94.0%, specificity=92.0% and area under the curve=0.94), which was confirmed in the validation set. Furthermore, its diagnostic yield was not reduced even in early-stage pancreatic malignancies (sensitivity=85.0%, specificity=93.0% and area under the curve=0.88).
CONCLUSION: We developed a blood-based gene expression scoring system for cancer screening in patients with BD-IPMNs.
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