1
|
Sato S, Kato T, Abe K, Hanaoka T, Yano Y, Kurosaki A, Yasuda M, Sekino T, Fujiwara K, Hasegawa K. Pre-operative evaluation of circulating KL-6 levels as a biomarker for epithelial ovarian carcinoma and its correlation with tumor MUC1 expression. Oncol Lett 2017; 14:776-786. [PMID: 28693233 PMCID: PMC5494608 DOI: 10.3892/ol.2017.6254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 02/17/2017] [Indexed: 12/17/2022] Open
Abstract
Krebs von den Lungen-6 (KL-6), a mucinous sialylated sugar chain on human mucin-1 glycoprotein (MUC1), is a diagnostic marker for interstitial lung diseases. Furthermore, elevated serum KL-6 levels have been observed in certain malignant tumor types of epithelial origin. The expression of MUC1 has been observed in patients with epithelial ovarian cancer (EOC) and is considered a potential therapeutic target. In the present study, KL-6 serum levels were investigated in patients clinically suspected of having malignant ovarian tumors. A total of 219 patients were enrolled in the study, which analyzed their serum KL-6 levels in addition to tumor expression of MUC1 using immunohistochemistry. High serum KL-6 levels were predominantly observed in patients with EOC, and did not occur in patients with benign or borderline tumors. The level of serum KL-6 was highly correlated with tumor stage, grade and histological type, and demonstrated superior sensitivity for the detection of ovarian cancer compared with that of serum cancer antigen 125. High serum KL-6 was significantly associated with shorter progression-free survival. In addition, tumor MUC1 expression status was significantly correlated with serum KL-6 levels. These data suggest that serum KL-6 may be a useful, non-invasive biomarker surrogate for tumor MUC1 expression in future clinical trials of MUC1-targeted therapy.
Collapse
Affiliation(s)
- Sho Sato
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan.,Gynecologic Oncology Translational Research Unit, Project Research Division, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1298, Japan
| | - Tomomi Kato
- Department of Pathology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan
| | - Kenji Abe
- Department of Research and Development, Eidia Co., Ltd, Inashiki, Ibaraki 300-1155, Japan
| | - Tatsuya Hanaoka
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan.,Gynecologic Oncology Translational Research Unit, Project Research Division, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1298, Japan
| | - Yuri Yano
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan
| | - Akira Kurosaki
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan.,Gynecologic Oncology Translational Research Unit, Project Research Division, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1298, Japan
| | - Masanori Yasuda
- Department of Pathology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan
| | - Tetsuo Sekino
- Department of Research and Development, Eidia Co., Ltd, Inashiki, Ibaraki 300-1155, Japan
| | - Keiichi Fujiwara
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan.,Gynecologic Oncology Translational Research Unit, Project Research Division, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1298, Japan
| | - Kosei Hasegawa
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama 350-1298, Japan.,Gynecologic Oncology Translational Research Unit, Project Research Division, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1298, Japan
| |
Collapse
|