PMID- 25220535 OWN - NLM STAT- MEDLINE DCOM- 20150226 LR - 20220316 IS - 1349-7006 (Electronic) IS - 1347-9032 (Print) IS - 1347-9032 (Linking) VI - 105 IP - 11 DP - 2014 Nov TI - Serum chromogranin A is a useful marker for Japanese patients with pancreatic neuroendocrine tumors. PG - 1464-71 LID - 10.1111/cas.12533 [doi] AB - Although chromogranin A (CGA) is a useful marker for pancreatic neuroendocrine tumors (pNET) in the West, its usefulness in Japanese populations is unclear. To assess this, we evaluated the serum CGA levels in 189 patients with various pancreatic diseases, including proven pNET (n = 69), pancreatic cancer (PC) (n = 50), chronic pancreatitis (CP) (n = 50) and autoimmune pancreatitis (AIP) (n = 20), and 112 normal controls (controls) using an ELISA kit. The mean CGA level of patients with pNET was significantly higher than any of the other groups (407.8 +/- 984.6 ng/mL [pNET] vs 91.8 +/- 101.8 ng/mL [PC], 93.6 +/- 57.5 ng/mL [CP], 69.9 +/- 52.4 ng/mL [AIP] and 62.5 +/- 48.3 ng/mL [controls]). Limiting the analysis to patients not using proton pump inhibitors (PPI), the CGA level of patients with PC or CP was not significantly different compared with the controls. Discriminant analysis revealed that the best cut-off value of CGA to distinguish patients with pNET from the controls was 78.7 ng/mL, with a sensitivity and specificity of 53.6% and 78.6%, respectively. In patients with pNET, significant factors associating with elevated CGA levels were tumor classification, tumor size, and the presence of liver metastases in univariate analysis as well as PPI use and the presence of liver metastases in multivariate analysis. We show that CGA is a useful marker for diagnosing pNET in Japanese populations and for distinguishing patients with pNET from patients with other pancreatic diseases. The increased use of CGA in Japan will likely be a helpful tool in managing these patients, as found in the West. CI - (c) 2014 The Authors. Cancer Science published by Wiley Publishing Asia Pty Ltd on behalf of Japanese Cancer Association. FAU - Hijioka, Masayuki AU - Hijioka M AD - Department of Medicine and Bioreguratory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. FAU - Ito, Tetsuhide AU - Ito T FAU - Igarashi, Hisato AU - Igarashi H FAU - Fujimori, Nao AU - Fujimori N FAU - Lee, Lingaku AU - Lee L FAU - Nakamura, Taichi AU - Nakamura T FAU - Jensen, Robert T AU - Jensen RT FAU - Takayanagi, Ryoichi AU - Takayanagi R LA - eng PT - Journal Article DEP - 20141018 PL - England TA - Cancer Sci JT - Cancer science JID - 101168776 RN - 0 (Biomarkers, Tumor) RN - 0 (Chromogranin A) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/*blood MH - Chromogranin A/*blood MH - Female MH - Humans MH - Japan MH - Male MH - Middle Aged MH - Neoplasm Grading MH - Neoplasm Metastasis MH - Neuroendocrine Tumors/*blood/diagnosis MH - Odds Ratio MH - Pancreatic Neoplasms/*blood/diagnosis MH - Prognosis MH - ROC Curve MH - Reproducibility of Results MH - Tumor Burden MH - Young Adult PMC - PMC4462381 OTO - NOTNLM OT - Chromogranin A OT - Japan OT - pancreatic cancer OT - pancreatic neuroendocrine tumors OT - proton pump inhibitors EDAT- 2014/09/16 06:00 MHDA- 2015/02/27 06:00 PMCR- 2014/11/01 CRDT- 2014/09/16 06:00 PHST- 2014/05/15 00:00 [received] PHST- 2014/09/05 00:00 [revised] PHST- 2014/09/07 00:00 [accepted] PHST- 2014/09/16 06:00 [entrez] PHST- 2014/09/16 06:00 [pubmed] PHST- 2015/02/27 06:00 [medline] PHST- 2014/11/01 00:00 [pmc-release] AID - 10.1111/cas.12533 [doi] PST - ppublish SO - Cancer Sci. 2014 Nov;105(11):1464-71. doi: 10.1111/cas.12533. Epub 2014 Oct 18.