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Wang Y, Wang J, Zheng W, Zhang J, Wang J, Jin T, Tao P, Wang Y, Liu C, Huang J, Lee PY, Yu X, Zhou Q. Identification of an IL-1 receptor mutation driving autoinflammation directs IL-1-targeted drug design. Immunity 2023:S1074-7613(23)00231-5. [PMID: 37315560 DOI: 10.1016/j.immuni.2023.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/27/2023] [Accepted: 05/17/2023] [Indexed: 06/16/2023]
Abstract
The interleukin 1 (IL-1) pathway signals through IL-1 receptor type 1 (IL-1R1) and emerges as a central mediator for systemic inflammation. Aberrant IL-1 signaling leads to a range of autoinflammatory diseases. Here, we identified a de novo missense variant in IL-1R1 (p.Lys131Glu) in a patient with chronic recurrent multifocal osteomyelitis (CRMO). Patient PBMCs showed strong inflammatory signatures, particularly in monocytes and neutrophils. The p.Lys131Glu substitution affected a critical positively charged amino acid, which disrupted the binding of the antagonist ligand, IL-1Ra, but not IL-1α or IL-1β. This resulted in unopposed IL-1 signaling. Mice with a homologous mutation exhibited similar hyperinflammation and greater susceptibility to collagen antibody-induced arthritis, accompanied with pathological osteoclastogenesis. Leveraging the biology of the mutation, we designed an IL-1 therapeutic, which traps IL-1β and IL-1α, but not IL-1Ra. Collectively, this work provides molecular insights and a potential drug for improved potency and specificity in treating IL-1-driven diseases.
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Affiliation(s)
- Yusha Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China; Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China
| | - Jun Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Wenjie Zheng
- Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Jiahui Zhang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jinbo Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Taijie Jin
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Panfeng Tao
- Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China
| | - Yibo Wang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Chenlu Liu
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Jiqian Huang
- Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Xiaomin Yu
- Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China; Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University, Hangzhou 311121, Zhejiang, China; Kidney Disease Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang, China.
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, Zhejiang, China; Liangzhu Laboratory, Zhejiang University, Hangzhou 311121, Zhejiang, China.
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