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JOURNAL ARTICLE

Impact of perioperative high mobility group box chromosomal protein 1 expression on long-term outcomes in patients with esophageal squamous cell carcinoma

Hironori Tsujimoto, Hiroyuki Horiguchi, Risa Takahata, Satoshi Ono, Yoshihisa Yaguchi, Shinsuke Nomura, Nozomi Ito, Manabu Harada, Hiromi Nagata, Yusuke Ishibashi, Keita Kouzu, Satoshi Tsuchiya, Yujiro Itazaki, Seiichiro Fujishima, Yoji Kishi, Hideki Ueno
Journal of Gastroenterology and Hepatology 2019 September 9
31498489

BACKGROUND: High mobility group box chromosomal protein-1 (HMGB-1) is a potential late mediator of sepsis and a possible risk factor for postoperative pulmonary complications after esophagectomy. This study aimed to determine the relationship between HMGB-1 and clinicopathological factors and long-term prognosis after esophagectomy for esophageal cancer.

METHODS: We measured perioperative serum HMGB-1 levels using enzyme-linked immunosorbent assay, and HMGB-1 protein by immunohistochemistry expression in resected specimens.

RESULTS: Postoperative serum HMGB-1 levels were significantly higher than preoperative levels. Preoperative serum HMGB-1 levels were significantly higher in patients with more intraoperative bleeding, longer intensive care unit stays, and postoperative pneumonia. Postoperative serum HMGB-1 levels were significantly higher in older patients and those with longer operation time and more intraoperative bleeding. There were significant differences in long-term outcomes according to postoperative but not preoperative serum HMGB-1 levels. Multivariate analysis demonstrated that advanced pathological stage, postoperative pulmonary complications, and higher postoperative serum HMGB-1 levels were independently associated with relapse-free survival (RFS) and overall survival (OS). Preoperative serum HMGB-1 levels were significantly higher in patients with high HMGB-1 expression than those with low HMGB-1 expression by immunohistochemistry, whereas such statistical differences were not observed in postoperative serum HMGB-1. There were no differences in RFS and OS according to HMGB-1 expression by immunohistochemistry. Serum HMGB-1 levels were significantly increased after esophagectomy for esophageal cancer.

CONCLUSION: Elevated postoperative serum HMGB-1, which was associated not only with poor long-term but also short-term outcomes such as postoperative complications, might serve as a potential marker for prognosis in esophageal cancer.

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