Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinoma
Expression of regenerating islet-derived protein 4 (REG4), a secretory protein involved in cell differentiation and proliferation, is upregulated in inflammatory bowel diseases and in many gastrointestinal malignancies. The prognostic significance of its expression in pancreatic ductal adenocarcinom...
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| Language: | English |
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SAGE Publishing
2018-03-01
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| Series: | Tumor Biology |
| Online Access: | https://doi.org/10.1177/1010428318761494 |
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| author | Kapo Saukkonen Jaana Hagström Harri Mustonen Laura Lehtinen Olli Carpen Leif C Andersson Hanna Seppänen Caj Haglund |
| author_facet | Kapo Saukkonen Jaana Hagström Harri Mustonen Laura Lehtinen Olli Carpen Leif C Andersson Hanna Seppänen Caj Haglund |
| author_sort | Kapo Saukkonen |
| collection | DOAJ |
| description | Expression of regenerating islet-derived protein 4 (REG4), a secretory protein involved in cell differentiation and proliferation, is upregulated in inflammatory bowel diseases and in many gastrointestinal malignancies. The prognostic significance of its expression in pancreatic ductal adenocarcinoma is unknown. Our aim was to investigate tumor tissue and serum REG4 expression in pancreatic ductal adenocarcinoma patients. We also evaluated as a control the diagnostic value of serum REG4 level in patients with chronic pancreatitis. Immunohistochemical expression of REG4 was evaluated in 154 surgical specimens and serum REG4 level in 130 samples from pancreatic ductal adenocarcinoma patients treated at Helsinki University Hospital, Finland, in 2000–2011. REG4 tissue and serum expression was assessed in relation to clinicopathological parameters and patient survival. A chronic pancreatitis control group comprised 34 patients who underwent pancreatic resection because of suspicion of malignancy. Significant survival differences were detectable in subgroups: in tumor stages IA–IIA, high serum REG4 level predicted worse survival (p=0.046). In patients with grade I tumor, positive tissue REG4 expression predicted better survival (p=0.006). In multivariate analysis, neither tissue nor serum REG4 expression was independent prognostic factors. Serum REG4 levels were higher in pancreatic ductal adenocarcinoma than in chronic pancreatitis (p=0.002), with diagnostic sensitivity of 45% and specificity of 91%. In logistic regression analysis, a multivariate model with REG4, CA19-9, and age provided sensitivity of 82% and specificity of 79%. REG4 tissue expression is a prognostic marker in subgroups of pancreatic ductal adenocarcinoma patients. Serum REG4 level might be useful in differential diagnosis between pancreatic ductal adenocarcinoma and chronic pancreatitis. |
| format | Article |
| id | doaj-art-8a7fef02c14441bfa889d04231e9c663 |
| institution | Kabale University |
| issn | 1423-0380 |
| language | English |
| publishDate | 2018-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Tumor Biology |
| spelling | doaj-art-8a7fef02c14441bfa889d04231e9c6632025-08-20T03:35:23ZengSAGE PublishingTumor Biology1423-03802018-03-014010.1177/1010428318761494Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinomaKapo Saukkonen0Jaana Hagström1Harri Mustonen2Laura Lehtinen3Olli Carpen4Leif C Andersson5Hanna Seppänen6Caj Haglund7Translational Cancer Biology Research Program, Research Programs Unit, University of Helsinki, Helsinki, FinlandDepartment of Pathology, Haartman Institute and HUSLAB, University of Helsinki and Helsinki University Hospital, Helsinki, FinlandDepartment of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, FinlandDepartment of Pathology, University of Turku and Turku University Hospital, Turku, FinlandGenome Scale Biology Research Program, Research Programs Unit, University of Helsinki, Helsinki, FinlandDepartment of Pathology, Haartman Institute and HUSLAB, University of Helsinki and Helsinki University Hospital, Helsinki, FinlandDepartment of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, FinlandTranslational Cancer Biology Research Program, Research Programs Unit, University of Helsinki, Helsinki, FinlandExpression of regenerating islet-derived protein 4 (REG4), a secretory protein involved in cell differentiation and proliferation, is upregulated in inflammatory bowel diseases and in many gastrointestinal malignancies. The prognostic significance of its expression in pancreatic ductal adenocarcinoma is unknown. Our aim was to investigate tumor tissue and serum REG4 expression in pancreatic ductal adenocarcinoma patients. We also evaluated as a control the diagnostic value of serum REG4 level in patients with chronic pancreatitis. Immunohistochemical expression of REG4 was evaluated in 154 surgical specimens and serum REG4 level in 130 samples from pancreatic ductal adenocarcinoma patients treated at Helsinki University Hospital, Finland, in 2000–2011. REG4 tissue and serum expression was assessed in relation to clinicopathological parameters and patient survival. A chronic pancreatitis control group comprised 34 patients who underwent pancreatic resection because of suspicion of malignancy. Significant survival differences were detectable in subgroups: in tumor stages IA–IIA, high serum REG4 level predicted worse survival (p=0.046). In patients with grade I tumor, positive tissue REG4 expression predicted better survival (p=0.006). In multivariate analysis, neither tissue nor serum REG4 expression was independent prognostic factors. Serum REG4 levels were higher in pancreatic ductal adenocarcinoma than in chronic pancreatitis (p=0.002), with diagnostic sensitivity of 45% and specificity of 91%. In logistic regression analysis, a multivariate model with REG4, CA19-9, and age provided sensitivity of 82% and specificity of 79%. REG4 tissue expression is a prognostic marker in subgroups of pancreatic ductal adenocarcinoma patients. Serum REG4 level might be useful in differential diagnosis between pancreatic ductal adenocarcinoma and chronic pancreatitis.https://doi.org/10.1177/1010428318761494 |
| spellingShingle | Kapo Saukkonen Jaana Hagström Harri Mustonen Laura Lehtinen Olli Carpen Leif C Andersson Hanna Seppänen Caj Haglund Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinoma Tumor Biology |
| title | Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinoma |
| title_full | Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinoma |
| title_fullStr | Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinoma |
| title_full_unstemmed | Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinoma |
| title_short | Prognostic and diagnostic value of REG4 serum and tissue expression in pancreatic ductal adenocarcinoma |
| title_sort | prognostic and diagnostic value of reg4 serum and tissue expression in pancreatic ductal adenocarcinoma |
| url | https://doi.org/10.1177/1010428318761494 |
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