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Yamaoka Y, Sasai M, Suehiro Y, Hashimoto S, Goto A, Yamamoto N, Suzuki N, Higaki S, Fujii I, Suzuki C, Matsumoto T, Hoshida T, Koga M, Tsutsumi T, Lim LA, Matsubara Y, Tomochika S, Yoshida S, Hazama S, Yotsuyanagi H, Nagano H, Sakaida I, Takami T, Yamasaki T. Comparison of two primer-probe sets of Fusobacterium nucleatum using droplet digital polymerase chain reaction for the detection of colorectal neoplasia from faecal samples. Ann Clin Biochem 2022; 59:396-403. [PMID: 35821582 DOI: 10.1177/00045632221115559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Although faecal DNA testing of Fusobacterium nucleatum (Fn) is expected to be useful for colorectal neoplasia detection, there is no standardized quantification method of Fn. We performed this study to establish a possible standardized method. METHODS In this study, 322 participants including 71 subjects without colorectal neoplasia (control group), 31 patients with non-advanced colorectal adenoma, 93 patients with advanced colorectal adenoma, and 127 patients with colorectal cancer were enrolled. Faecal Fn were quantified by droplet digital PCR (ddPCR) using two PCR primer-probe sets reported previously that are tentatively named Fn1 and Fn2. Fn1 has been used in ddPCR by us and Fn2 has been widely used in quantitative real-time PCR. RESULTS The Fn copy number using Fn1 was five times higher than that using Fn2, with a linear relationship shown between them. Receiver operating characteristic curve analysis showed the area under the curve (AUC) to be almost the same between Fn1 and Fn2 in discriminating between the control group and the colorectal cancer group (AUC = 0.81 and 0.81, respectively), and between the control/non-advanced colorectal adenoma group and the advanced colorectal adenoma/colorectal cancer group (AUC = 0.74 and 0.74, respectively). CONCLUSIONS As the diagnostic performance was quite similar between Fn1 and Fn2, ddPCR-based Fn testing using Fn1 and Fn2 could be a possible standardized method for a colorectal neoplasia screening test, considering that Fn levels quantified by Fn1 are about five times higher than those by Fn2.
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Affiliation(s)
- Yuko Yamaoka
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Mai Sasai
- Division of Laboratory, Yamaguchi University Hospital, Ube, Japan.,Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yutaka Suehiro
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shinichi Hashimoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Atsushi Goto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Naoki Yamamoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Nobuaki Suzuki
- Department of Digestive Surgery and Surgical Oncology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shingo Higaki
- Department of Gastroenterology, St. Hill Hospital, Ube, Japan
| | | | | | - Toshihiko Matsumoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan.,Division of Laboratory, Yamaguchi University Hospital, Ube, Japan
| | - Tomomi Hoshida
- Division of Laboratory, Yamaguchi University Hospital, Ube, Japan
| | - Michiko Koga
- Division of Infectious Diseases, The Advanced Clinical Research Centre, The Institute of Medical Science, 26430The University of Tokyo, Tokyo, Japan
| | - Takeya Tsutsumi
- Division of Infectious Diseases, The Advanced Clinical Research Centre, The Institute of Medical Science, 26430The University of Tokyo, Tokyo, Japan
| | - Lay A Lim
- Department of General Medicine, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yasuo Matsubara
- Department of General Medicine, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Shinobu Tomochika
- Department of Digestive Surgery and Surgical Oncology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shin Yoshida
- Department of Digestive Surgery and Surgical Oncology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shoichi Hazama
- Department of Translational Research and Developmental Therapeutics Against Cancer, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Hiroshi Yotsuyanagi
- Division of Infectious Diseases, The Advanced Clinical Research Centre, The Institute of Medical Science, 26430The University of Tokyo, Tokyo, Japan
| | - Hiroaki Nagano
- Department of Digestive Surgery and Surgical Oncology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Isao Sakaida
- Department of Gastroenterology, St. Hill Hospital, Ube, Japan
| | - Taro Takami
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takahiro Yamasaki
- Division of Laboratory, Yamaguchi University Hospital, Ube, Japan.,Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan
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