Volume 62, Issue 7 pp. 991-1000
RESEARCH ARTICLE

A variant in CYP26B1 associated with esophageal squamous cell carcinoma risk by affecting retinoic acid metabolism

Siyuan Niu

Siyuan Niu

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

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Ke Shi

Ke Shi

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

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Xinying Yue

Xinying Yue

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

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Miaoxin Pan

Miaoxin Pan

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

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Lina Song

Lina Song

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

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Linglong Gu

Linglong Gu

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

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Yuqian Tan

Yuqian Tan

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

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Xiaoping Miao

Xiaoping Miao

Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan, China

Cancer Center, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China

Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China

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Jianbo Tian

Corresponding Author

Jianbo Tian

Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan, China

Cancer Center, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China

Correspondence Jianbo Tian, Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan, China.

Email: [email protected]

Jiang Chang, Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Email: [email protected]

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Jiang Chang

Corresponding Author

Jiang Chang

Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China

Correspondence Jianbo Tian, Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan, China.

Email: [email protected]

Jiang Chang, Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Email: [email protected]

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First published: 12 April 2023

Abstract

All-trans retinoic acid (ATRA) is the natural and synthetic analogue of vitamin A, playing an essential tumor suppressive role in multiple cancers including the esophageal squamous cell carcinoma (ESCC). Cytochrome P450 family 26 subfamily B member 1 (CYP26B1) exerts a critical regulator of ATRA levels through specific inactivation of ATRA to hydroxylated forms. Our previous exome-wide analyses revealed a rare missense variant in CYP26B1 significantly associated with ESCC risk in the Chinese population. However, it is still unclear whether there are common variants in CYP26B1 affect the susceptibility of ESCC and the tumor promotion role of CYP26B1 in vivo. In this research, we conducted a two-stage case-control study comprised of 5057 ESCC cases and 5397 controls, followed by a series of biochemical experiments to explore the function of CYP26B1 and its common variants in the tumorigenesis of ESCC. Intriguingly, we identified a missense variant rs2241057[A>G] in the fourth exon of CYP26B1 significantly associated with the ESCC risk (combined odds ratio = 1.28; 95% confidence interval = 1.15–1.42; p = 2.96 × 10−6). Through further functional analysis, we demonstrated that ESCC cells with the overexpression of rs2241057[G] had a significant lower level of retinoic acid, compared with the overexpression of rs2241057[A] or the control vector. In addition, the CYP26B1 overexpression and knock-out ESCC cells affected cell proliferation rate both in vitro and in vivo. These results highlighted the carcinogenicity of CYP26B1 related to the ATRA metabolism in ESCC risk.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflict of interest.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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