Specific increase in serum core-fucosylated haptoglobin in patients with chronic pancreatitis

Makiko Ueda, Yoshihiro Kamada, Shinji Takamatsu, Mayuka Shimomura, Tomohiro Maekawa, Tomoaki Sobajima, Hironobu Fujii, Kotarosumitomo Nakayama, Kimihiro Nishino, Makoto Yamada, Yuka Kobayashi, Takashi Kumada, Toshifumi Ito, Hidetoshi Eguchi, Hiroaki Nagano, Eiji Miyoshi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Background/Objectives Pancreatic ductal adenocarcinoma (PDAC) has the worst prognosis of all malignancies, and its diagnosis in early stages is the most important prognostic factor. Chronic pancreatitis (CP), a common background of PDAC occurrence, is morphologically defined as progressive pancreatic fibrosis and inflammation accompanied by pancreatic exocrine cell atrophy. We recently found that inflammation and fibrosis are independent characteristic histological changes in noncancerous lesions in PDAC patients despite the absence of a past history of clinical CP. Subclinical CP is an important background for PDAC occurrence. Therefore, there is an urgent need to develop a noninvasive and reliable biomarker for CP diagnosis. Methods Fifty-nine healthy volunteers (HV), 159 patients with CP, and 83 patients with PDAC were enrolled in this study. We measured serum total fucosylated haptoglobin (Fuc-Hpt) and core-Fuc-Hpt levels using lectin-antibody enzyme-linked immunosorbent assay kits that we developed. In these kits, total Fuc-Hpt and core-Fuc-Hpt were measured using Aleuria aurantia lectin and Pholiota squarrosa lectin, respectively. Results Serum Fuc-Hpt levels were significantly increased in CP patients compared to HV (P < 0.0001) and were further increased in PDAC patients (P < 0.0001). Interestingly, serum core-Fuc-Hpt levels were significantly higher in CP patients compared to HV (P < 0.0001) and PDAC patients (P < 0.0001). Multivariate analyses demonstrated that total serum core-Fuc-Hpt was an independent determinant for CP diagnosis, but Fuc-Hpt was not. Conclusions A dramatic change in oligosaccharides was observed in serum haptoglobin between CP and PDAC. Serum core-Fuc-Hpt may be a novel and useful biomarker for CP diagnosis.

Original languageEnglish
Pages (from-to)238-243
Number of pages6
JournalPancreatology
Volume16
Issue number2
DOIs
Publication statusPublished - Mar 1 2016

All Science Journal Classification (ASJC) codes

  • Endocrinology, Diabetes and Metabolism
  • Hepatology
  • Gastroenterology

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