Volume 186, Issue 2 pp. 307-317
Translational Research

Three novel structural variations at the major histocompatibility complex and IL12B predispose to psoriasis*

Q. Zhen

Q. Zhen

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

Contribution: Methodology (equal), Project administration (equal), Resources (lead), Validation (equal), Writing - review & editing (lead)

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Y. Zhang

Y. Zhang

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

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Y. Yu

Y. Yu

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

Contribution: Conceptualization (equal), Resources (equal), Validation (equal), Writing - review & editing (equal)

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H. Yang

H. Yang

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Contribution: Data curation (equal), Methodology (equal), Software (lead), Writing - original draft (equal)

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T. Zhang

T. Zhang

Department of Biology, University of Copenhagen, Copenhagen, Denmark

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X. Li

X. Li

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Contribution: Resources (equal)

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X. Mo

X. Mo

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Contribution: Software (equal), Validation (equal)

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B. Li

B. Li

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

The Comprehensive Lab, College of Basic, Anhui Medical University, Hefei, China

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J. Wu

J. Wu

Department of Dermatology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, China

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Y. Liang

Y. Liang

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Contribution: Formal analysis (equal), Software (equal)

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H. Ge

H. Ge

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

Contribution: Methodology (equal), Validation (equal)

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Q. Xu

Q. Xu

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

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W. Chen

W. Chen

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

Contribution: Methodology (equal), Validation (supporting)

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W. Qian

W. Qian

Institute of Dermatology, Guangzhou Medical University, Guangzhou, China

Contribution: Methodology (supporting), Validation (supporting)

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H. Xu

H. Xu

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

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G. Chen

G. Chen

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

Contribution: Methodology (supporting), Validation (supporting)

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B. Bai

B. Bai

Department of Dermatology at No.2 Hospital, Harbin Medical University, Harbin, Heilongjiang, China

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J. Zhang

J. Zhang

Department of Dermatology, The 195 Hospital of Chinese People’s Liberation Army, Xianning, Hubei, China

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Y. Lu

Y. Lu

Dermatology Department of the First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China

Contribution: Resources (equal)

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S. Chen

S. Chen

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

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H. Zhang

H. Zhang

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

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Y. Zhang

Y. Zhang

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

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X. Chen

X. Chen

Department of Dermatology at Chengdu Second People's Hospital, Sichuan, Chengdu, China

Contribution: Resources (equal)

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X. Li

X. Li

Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China

Contribution: Resources (equal)

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X. Jin

X. Jin

School of Medicine, South China University of Technology, Guangzhou, Guangdong, China

Contribution: Methodology (supporting), Software (supporting)

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X. Lin

X. Lin

Department of Neurology and Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China

Contribution: Resources (equal)

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L. Yong

L. Yong

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

Contribution: Methodology (supporting), Validation (supporting)

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M. Fang

M. Fang

Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen, Fujian, China

Contribution: Resources (equal)

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J. Zhao

J. Zhao

Department of Dermatology, People’s Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, Urumqi, China

Contribution: Resources (equal)

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Y. Lu

Y. Lu

Department of Dermatology at Chengdu Second People's Hospital, Sichuan, Chengdu, China

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S. Wu

S. Wu

Urology Institute of Shenzhen University, The Luohu Affiliated Hospital of Shenzhen University, Shenzhen, China

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D. Jiang

D. Jiang

Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen, Fujian, China

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J. Shi

J. Shi

Department of Dermatology at the Second Affiliated Hospital, Baotou Medical College, University of Science and Technology of The Inner Mongolia, Baotou, Inner Mongolia, China

Contribution: Resources (equal)

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H. Cao

H. Cao

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Contribution: Resources (equal)

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Y. Qiu

Y. Qiu

Department of Dermatology, Jining No. 1 People's Hospital, Shandong, China

Contribution: Resources (equal)

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S. Li

S. Li

Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China

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X. Kang

X. Kang

Department of Dermatology, People’s Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, Urumqi, China

Contribution: Resources (equal)

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J. Shen

J. Shen

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Contribution: Methodology (supporting), Software (supporting)

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H. Ma

H. Ma

Department of Dermatology, the 2nd Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China

Contribution: Resources (equal)

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S. Sun

S. Sun

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

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Y. Fan

Y. Fan

Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China

Contribution: Resources (equal)

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W. Chen

W. Chen

Department of Neurology and Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China

Contribution: Methodology (equal), Validation (supporting)

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M. Bai

M. Bai

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

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Q. Jiang

Q. Jiang

Donggang Center Hospital, Dandong, Liaoning, China

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W. Li

W. Li

Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, Shandong, China

Contribution: Resources (equal)

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C. Lv

C. Lv

Dalian Dermatosis Hospital, Dalian, Liaoning, China

Contribution: Resources (equal)

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S. Li

S. Li

Department of Dermatology at No.1 Hospital of Jilin University, Changchun, Jilin, China

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M. Chen

M. Chen

Dermatology Hospital, Peking Union Medical College, Beijing, China

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F. Li

F. Li

Department of Dermatology, The Second Hospital of Jilin University, Changchun, China

Contribution: Resources (equal)

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Y. Li

Y. Li

Department of Dermatology, The 195 Hospital of Chinese People’s Liberation Army, Xianning, Hubei, China

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L. Sun

Corresponding Author

L. Sun

Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, China

Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China

Anhui Provincial Institute of Translational Medicine, Hefei, China

Correspondence

Liangdan Sun.

Email: [email protected]

Contribution: Data curation (lead), Funding acquisition (lead), Project administration (lead), Resources (lead), Supervision (lead), Writing - review & editing (equal)

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First published: 09 September 2021
Citations: 4
Funding sources This study was supported by grants from the Program of National Science Fund for Excellent Young Scholars (81222022), the general programme of National Natural Science Foundation of China (81972927, 81773313, 31700794), clinical medicine discipline construction project of Anhui Medical University (2021lcxk008), the University Synergy Innovation Program of Anhui Province (GXXT-2020-064) and the Research Fund of Anhui Institute of Translational Medicine (ZHYX2020A005).
Conflicts of interest The authors declare they have no conflicts of interest.
§
Data availability Data from the 11M Capture cohort have been deposited in the CNGB Nucleotide Sequence Archive (CNSA; https://db.cngb.org/cnsa/) of the China National GenBank Database (CNGBdb) with accession code CNP0000412.
The first four authors contributed equally to this work.
*

Plain language summary available online

Summary

Background

Structural variations (SVs; defined as DNA variants ≥ 50 base pairs) have been associated with various complex human diseases. However, research to screen the whole genome for SVs predisposing to psoriasis is lacking.

Objectives

To investigate the association of SVs and psoriasis.

Methods

Using imputation, we performed a genome-wide screen of SVs on five independent cohorts with 45 386 participants from the Han Chinese population. Fine-mapping analysis, genetic interaction analysis and RNA expression analysis were conducted to explore the mechanism of SVs.

Results

In total, we obtained 4535 SVs and identified two novel deletions [esv3608550, odds ratio (OR) 2·73 (P < 2·00 × 10–308); esv3608542, OR 0·47 (P = 7·40 × 10–28)] at 6q21·33 (major histocompatibility complex), one novel Alu element insertion [esv3607339; OR 1·22 (P = 1·18 × 10–35)] at 5q33·3 (IL12B) and confirmed one previously reported deletion [esv3587563; OR 1·30 (P = 9·52 × 10–60)] at 1q21·2 (late cornified envelope) for psoriasis. Fine-mapping analysis including single-nucleotide polymorphisms (SNPs) and small insertions/deletions revealed that esv3608550 and esv3608542 were independently associated with psoriasis, and a novel independent SNP [rs9378188; OR, 1·65 (P = 3·46 × 10–38)] was identified at 6q21·33. By genetic interaction analysis and RNA expression analysis, we speculate that the association of two deletions at 6q21·33 with psoriasis might relate to their influence on the expression of HLA-C.

Conclusions

We have constructed the most comprehensive SV map for psoriasis thus far and enriched the genetic architecture and pathogenesis of psoriasis, and highlight the non-negligible impact of SVs on complex diseases.

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