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Chen X, Deng G, Chen K, Chen Y, Ye W, Sun P. Targeting the NLRP3 inflammasome in psoriasis. Int J Dermatol 2024; 63:844-851. [PMID: 38345734 DOI: 10.1111/ijd.17073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 07/05/2024]
Abstract
The NLRP3 inflammasome, a complex consisting of the nucleotide-binding oligomerization domain, leucine-rich repeat, and pyrin domain-containing protein 3, has emerged as a critical mediator of pathological inflammation and a significant therapeutic target for various inflammatory diseases. Psoriasis, a chronic inflammatory skin condition without a definitive cure, has shown promising results in animal models through the inhibition of the NLRP3 inflammasome. This review aims to explore the development of the NLRP3 inflammasome in psoriasis and the molecular mechanisms responsible for its inhibition by natural products and small molecules currently being developed for psoriasis treatment. Furthermore, we are examining clinical trials using agents that block the NLRP3 pathway for the treatment of psoriasis. This study is timely to provide a new perspective on managing psoriasis.
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Affiliation(s)
- Xiuhui Chen
- Key Laboratory of Precision Pharmacy and Pharmaceutical Basic Research, Dongguan, China
- Department of Pharmacy, Dongguan Eighth People's Hospital, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, China
| | - Guoliang Deng
- Key Laboratory of Precision Pharmacy and Pharmaceutical Basic Research, Dongguan, China
- Department of Pharmacy, Dongguan Eighth People's Hospital, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, China
| | - Kaifeng Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yanhong Chen
- Department of Pharmacy, Baoan Central Hospital of Shenzhen, Shenzhen, China
| | - Weijun Ye
- Key Laboratory of Precision Pharmacy and Pharmaceutical Basic Research, Dongguan, China
- Department of Pharmacy, Dongguan Eighth People's Hospital, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, China
| | - Ping Sun
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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Zuo Z, He S, Qiu Y, Guo R, He Y, Jiao C, Xia Y, Liu W, Luan C, Guo W. Salvianolic acid A prevents UV-induced skin damage by inhibiting the cGAS-STING pathway. Int Immunopharmacol 2024; 132:111971. [PMID: 38565040 DOI: 10.1016/j.intimp.2024.111971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
DNA damage resulting from UV irradiation on the skin has been extensively documented in numerous studies. In our prior investigations, we demonstrated that UVB-induced DNA breakage from keratinocytes can activate the cGAS-STING pathway in macrophages. The cGAS-STING signaling pathway serves as the principal effector for detecting and responding to abnormal double-stranded DNA in the cytoplasm. Expanding on our previous findings, we have further validated that STING knockout significantly diminishes UVB-induced skin damage, emphasizing the critical role of cGAS-STING activation in this context. Salvianolic acid A, a principal active constituent of Salvia miltiorrhiza Burge, has been extensively studied for its therapeutic effects in conditions such as coronary heart disease, angina pectoris, and diabetic peripheral neuropathy. However, its effect on cGAS-STING pathway and its ability to alleviate skin damage have not been previously reported. In a co-culture system, supernatant from UVB-treated keratinocytes induced IRF3 activation in macrophages, and this activation was inhibited by salvianolic acid A. Our investigation, employing photodamage and photoaging models, establishes that salvianolic acid A effectively mitigates UV-induced epidermal thickening and collagen degeneration. Treatment with salvianolic acid A significantly reduced skin damage, epidermal thickness increase, and keratinocyte hyperproliferation compared to the untreated photo-damage and photoaging model groups. In summary, salvianolic acid A emerges as a promising candidate for preventing UV-induced skin damage by inhibiting cGAS-STING activation. This research enhances our understanding of the intricate mechanisms underlying skin photodamage and provides a potential avenue for the development of therapeutic interventions.
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Affiliation(s)
- Zhenqi Zuo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Shengwei He
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Yinqi Qiu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Runying Guo
- Dongguan Eastern Central Hospital, The Sixth Affiliated hospital of Jinan University, China
| | - Yingxue He
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Chenyang Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Yugui Xia
- Institute of Artificial Intelligence Biomedicine, Nanjing University, Nanjing, China. 10th Xinghuo Road, Jiangbei New District, Nanjing, China
| | - Wen Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China
| | - Chao Luan
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
| | - Wenjie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Nanjing, China.
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Hong DK, Choi MR, Hwang YL, Lee JK, Lee Y, Seo YJ, Kim S, Lee YH, Kim CD, Lee JH. Potential Role of Cytosolic RNA Sensor MDA5 as an Inhibitor for Keratinocyte Differentiation in the Pathogenesis of Psoriasis. Ann Dermatol 2021; 33:339-344. [PMID: 34341635 PMCID: PMC8273324 DOI: 10.5021/ad.2021.33.4.339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 10/21/2020] [Accepted: 12/01/2020] [Indexed: 11/14/2022] Open
Abstract
Background Psoriasis is a chronic inflammatory skin disease. The etiology of psoriasis is not fully understood, but the genetic background is considered to be the most important factor. To date, many psoriasis-related genes have been discovered, but the role of many important genes has not been well understood. Objective The purpose of this study is to uncover possible roles of MDA5 in psoriasis. Methods Expression of MDA5 was investigated using immunohistochemistry. Then, MDA5 was overexpressed in keratinocytes using a recombinant adenovirus. Results As a result of immunohistochemical staining, the expression of MDA5 was significantly increased in the epidermis of psoriasis compared to normal skin. Similarly, the expression of MDA5 was increased in imiquimod-induced psoriasiform dermatitis model. In cultured keratinocytes, toll-like receptor 3 agonist poly(I:C) induced expression of MDA5 at both mRNA and protein levels. When MDA5 was overexpressed using a recombinant adenovirus, poly(I:C)-induced cytokine expression was significantly increased. Finally, MDA5 overexpression significantly inhibited calcium-induced differentiation of keratinocytes. Conclusion These results suggest that MDA5 increases in psoriasis and negatively regulates keratinocyte differentiation.
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Affiliation(s)
- Dong-Kyun Hong
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Mi-Ra Choi
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Yul-Lye Hwang
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jae Kyung Lee
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young Lee
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young-Joon Seo
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Sooil Kim
- Department of Anatomy, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young-Ho Lee
- Department of Anatomy, Chungnam National University School of Medicine, Daejeon, Korea
| | - Chang-Deok Kim
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jeung-Hoon Lee
- Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
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