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Zeng J, Meng X, Zhou P, Yin Z, Xie Q, Zou H, Shen N, Ye Z, Tang Y. Interferon-α exacerbates neuropsychiatric phenotypes in lupus-prone mice. Arthritis Res Ther 2019; 21:205. [PMID: 31481114 PMCID: PMC6724270 DOI: 10.1186/s13075-019-1985-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 08/20/2019] [Indexed: 11/16/2022] Open
Abstract
Background Neuropsychiatric systemic lupus erythaematosus (NP-SLE) is one of the major manifestations of lupus. However, the mechanisms involved in NP-SLE are still largely unknown. The abnormal activation of the type I IFN signalling pathway is involved in SLE pathogenesis and is linked to NP-SLE, but the effect of IFN-α on NP-SLE encephalopathy has not been systematically studied. Methods An intravenous injection of Adv-IFN-α (10 mice, 10 × 109 vp) was administered to the IFN-α-treated group, and Adv-ctrl (10 mice, 10 × 109 vp) (ViGene Biosciences, China) was administered to the control group. Gene expression was determined by real-time quantitative polymerase chain reaction (RT-qPCR). Enzyme-linked immunosorbent assay (ELISA) was used to detect antibodies in the serum, and urinary protein levels were measured with a BCA Protein Assay kit. Haematoxylin-eosin (H&E) and periodic acid-Schiff (PAS)-light green staining were used for kidney histology. The elevated plus-maze test, novelty-suppressed feeding assay, open-field test, tail suspension test, social dominance tube test, three-chamber social interaction test, step-down passive avoidance test and novelty Y-maze task were used to assess behaviour. Results In this study, we performed a series of behavioural tests to assess the neuropsychiatric phenotypes of IFN-α-treated NZB/NZW F1 mice and found that these mice developed a series of mental disorders such as anxiety-like phenotypes, depression-like phenotypes, deficits in sociability and cognitive impairments, which mimic the neuropsychiatric manifestations of NP-SLE, with a consistent onset and progression. Conclusions Our research verified that IFN-α plays a critical role in NP-SLE and provides a comprehensive NP-SLE mouse model for dissecting the mechanisms of NP-SLE and developing novel therapies for intervention. Electronic supplementary material The online version of this article (10.1186/s13075-019-1985-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jing Zeng
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 145 Shan Dong Road (c), Shanghai, China
| | - Xinyu Meng
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 145 Shan Dong Road (c), Shanghai, China
| | - Ping Zhou
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 145 Shan Dong Road (c), Shanghai, China
| | - Zhihua Yin
- Shenzhen Futian Hospital for Rheumatic Diseases, 22 Nong Lin Road, Shenzhen, China
| | - Qinglian Xie
- Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, China
| | - Hong Zou
- Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, China
| | - Nan Shen
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 145 Shan Dong Road (c), Shanghai, China. .,Shenzhen Futian Hospital for Rheumatic Diseases, 22 Nong Lin Road, Shenzhen, China. .,Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, China. .,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, 2200 Lane 25 Xietu Road, Shanghai, China. .,Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, China. .,Center for Autoimmune Genomics and Etiology (CAGE), Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, USA.
| | - Zhizhong Ye
- Shenzhen Futian Hospital for Rheumatic Diseases, 22 Nong Lin Road, Shenzhen, China.
| | - Yuanjia Tang
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 145 Shan Dong Road (c), Shanghai, China. .,Shenzhen Futian Hospital for Rheumatic Diseases, 22 Nong Lin Road, Shenzhen, China.
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