PMID- 22333441 OWN - NLM STAT- MEDLINE DCOM- 20120702 LR - 20211021 IS - 1471-230X (Electronic) IS - 1471-230X (Linking) VI - 12 DP - 2012 Feb 14 TI - Diagnostic accuracy of cyst fluid amphiregulin in pancreatic cysts. PG - 15 LID - 10.1186/1471-230X-12-15 [doi] AB - BACKGROUND: Accurate tests to diagnose adenocarcinoma and high-grade dysplasia among mucinous pancreatic cysts are clinically needed. This study evaluated the diagnostic utility of amphiregulin (AREG) as a pancreatic cyst fluid biomarker to differentiate non-mucinous, benign mucinous, and malignant mucinous cysts. METHODS: A single-center retrospective study to evaluate AREG levels in pancreatic cyst fluid by ELISA from 33 patients with a histological gold standard was performed. RESULTS: Among the cyst fluid samples, the median (IQR) AREG levels for non-mucinous (n = 6), benign mucinous (n = 15), and cancerous cysts (n = 15) were 85 pg/ml (47-168), 63 pg/ml (30-847), and 986 pg/ml (417-3160), respectively. A significant difference between benign mucinous and malignant mucinous cysts was observed (p = 0.025). AREG levels greater than 300 pg/ml possessed a diagnostic accuracy for cancer or high-grade dysplasia of 78% (sensitivity 83%, specificity 73%). CONCLUSION: Cyst fluid AREG levels are significantly higher in cancerous and high-grade dysplastic cysts compared to benign mucinous cysts. Thus AREG exhibits potential clinical utility in the evaluation of pancreatic cysts. FAU - Tun, May T AU - Tun MT AD - Department of Medicine, Stanford University, Stanford, CA 94305, USA. FAU - Pai, Reetesh K AU - Pai RK FAU - Kwok, Shirley AU - Kwok S FAU - Dong, Aiwen AU - Dong A FAU - Gupta, Aparna AU - Gupta A FAU - Visser, Brendan C AU - Visser BC FAU - Norton, Jeff A AU - Norton JA FAU - Poultsides, George A AU - Poultsides GA FAU - Banerjee, Subhas AU - Banerjee S FAU - Van Dam, Jacques AU - Van Dam J FAU - Chen, Ann M AU - Chen AM FAU - Friedland, Shai AU - Friedland S FAU - Scott, Brennan A AU - Scott BA FAU - Verma, Rahul AU - Verma R FAU - Lowe, Anson W AU - Lowe AW FAU - Park, Walter G AU - Park WG LA - eng GR - DK063624/DK/NIDDK NIH HHS/United States GR - DK56339/DK/NIDDK NIH HHS/United States PT - Evaluation Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20120214 PL - England TA - BMC Gastroenterol JT - BMC gastroenterology JID - 100968547 RN - 0 (AREG protein, human) RN - 0 (Amphiregulin) RN - 0 (Biomarkers) RN - 0 (EGF Family of Proteins) RN - 0 (Glycoproteins) RN - 0 (Intercellular Signaling Peptides and Proteins) SB - IM MH - Adenocarcinoma/*diagnosis/metabolism MH - Adult MH - Aged MH - Aged, 80 and over MH - Amphiregulin MH - Biomarkers/metabolism MH - Cyst Fluid/*metabolism MH - Diagnosis, Differential MH - EGF Family of Proteins MH - Female MH - Glycoproteins/*metabolism MH - Humans MH - Intercellular Signaling Peptides and Proteins/*metabolism MH - Male MH - Middle Aged MH - Pancreatic Cyst/*diagnosis/metabolism MH - Pancreatic Neoplasms/*diagnosis/metabolism MH - ROC Curve MH - Retrospective Studies MH - Sensitivity and Specificity PMC - PMC3305641 EDAT- 2012/02/16 06:00 MHDA- 2012/07/03 06:00 PMCR- 2012/02/14 CRDT- 2012/02/16 06:00 PHST- 2011/09/02 00:00 [received] PHST- 2012/02/14 00:00 [accepted] PHST- 2012/02/16 06:00 [entrez] PHST- 2012/02/16 06:00 [pubmed] PHST- 2012/07/03 06:00 [medline] PHST- 2012/02/14 00:00 [pmc-release] AID - 1471-230X-12-15 [pii] AID - 10.1186/1471-230X-12-15 [doi] PST - epublish SO - BMC Gastroenterol. 2012 Feb 14;12:15. doi: 10.1186/1471-230X-12-15.