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Xu S, Wang D, Tan L, Lu J. The role of NLRP3 inflammasome in type 2 inflammation related diseases. Autoimmunity 2024; 57:2310269. [PMID: 38332696 DOI: 10.1080/08916934.2024.2310269] [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: 08/30/2023] [Accepted: 01/21/2024] [Indexed: 02/10/2024]
Abstract
Type 2 inflammation related diseases, such as atopic dermatitis, asthma, and allergic rhinitis, are diverse and affect multiple systems in the human body. It is common for individuals to have multiple co-existing type 2 inflammation related diseases, which can impose a significant financial and living burden on patients. However, the exact pathogenesis of these diseases is still unclear. The NLRP3 inflammasome is a protein complex composed of the NLRP3 protein, ASC, and Caspase-1, and is activated through various mechanisms, including the NF-κB pathway, ion channels, and lysosomal damage. The NLRP3 inflammasome plays a role in the immune response to pathogens and cellular damage. Recent studies have indicated a strong correlation between the abnormal activation of NLRP3 inflammasome and the onset of type 2 inflammation. Additionally, it has been demonstrated that suppressing NLRP3 expression effectively diminishes the inflammatory response, highlighting its promising therapeutic applications. Therefore, this article reviews the role of NLRP3 inflammasome in the development and therapy of multiple type 2 inflammation related diseases.
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Affiliation(s)
- Shenming Xu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
| | - Dan Wang
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
| | - Lina Tan
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
| | - Jianyun Lu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
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Li X, Lu C, Du W, Zou Q, Wang R, Hu C, Li Y, Zhang Y, Mao Z. Development of new dehydrocostuslactone derivatives for treatment of atopic dermatitis via inhibition of the NF-κB signaling pathway. RSC Med Chem 2024; 15:2773-2784. [PMID: 39149113 PMCID: PMC11324064 DOI: 10.1039/d4md00301b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Accepted: 06/24/2024] [Indexed: 08/17/2024] Open
Abstract
Atopic dermatitis (AD), a recurrent inflammatory systemic skin disease, is difficult to cure. In the present study, several ethylenediamine-derived dehydrocostuslactone (DHCL) derivatives were prepared to assess their in vitro and in vivo anti-inflammatory activities. The results indicated that DHCL derivatives inhibited NO generation with low cytotoxicity. In particular, compound 5d exhibited the best anti-inflammatory activity. Subsequent experiments revealed that 5d not only inhibited the LPS-induced inflammatory response in RAW264.7 cells via the MAPK-NF-κB signaling pathway inhibition but also significantly decreased Th2-type cytokine levels and inhibited the NF-κB signaling pathway activation in mice with MC903-induced AD. Therefore, DHCL derivatives may be considered as new agents for the treatment of AD.
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Affiliation(s)
- Xiaoyi Li
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Cheng Lu
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Wenxia Du
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Qiuping Zou
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Ruirui Wang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Chunyan Hu
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Yanping Li
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Yi Zhang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
| | - Zewei Mao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 PR China
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Lu HF, Zhou YC, Hu TY, Yang DH, Wang XJ, Luo DD, Qiu SQ, Cheng BH, Zeng XH. Unraveling the role of NLRP3 inflammasome in allergic inflammation: implications for novel therapies. Front Immunol 2024; 15:1435892. [PMID: 39131161 PMCID: PMC11310156 DOI: 10.3389/fimmu.2024.1435892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 07/15/2024] [Indexed: 08/13/2024] Open
Abstract
Allergic diseases like asthma, allergic rhinitis and dermatitis pose a significant global health burden, driving the search for novel therapies. The NLRP3 inflammasome, a key component of the innate immune system, is implicated in various inflammatory diseases. Upon exposure to allergens, NLRP3 undergoes a two-step activation process (priming and assembly) to form active inflammasomes. These inflammasomes trigger caspase-1 activation, leading to the cleavage of pro-inflammatory cytokines (IL-1β and IL-18) and GSDMD. This process induces pyroptosis and amplifies inflammation. Recent studies in humans and mice strongly suggest a link between the NLRP3 inflammasome, IL-1β, and IL-18, and the development of allergic diseases. However, further research is needed to fully understand NLRP3's specific mechanisms in allergies. This review aims to summarize the latest advances in NLRP3 activation and regulation. We will discuss small molecule drugs and natural products targeting NLRP3 as potential therapeutic strategies for allergic diseases.
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Affiliation(s)
- Hui-Fei Lu
- Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
| | - Yi-Chi Zhou
- Department of Gastroenterology, Beijing University of Chinese Medicine Shenzhen Hospital (Longgang), Shenzhen, China
| | - Tian-Yong Hu
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
| | - Dun-Hui Yang
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
| | - Xi-Jia Wang
- Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
| | - Dan-Dan Luo
- Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
| | - Shu-Qi Qiu
- Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
| | - Bao-Hui Cheng
- Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
| | - Xian-Hai Zeng
- Department of Otolaryngology, Longgang Otolaryngology Hospital & Shenzhen Otolaryngology Research, Shenzhen, China
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Yao Y, Wang Z, Li J, Peng A, Cao Y, Liang N, Zhang K. Pyroptosis and its role in autoimmune skin disease. Exp Dermatol 2024; 33:e15135. [PMID: 39021278 DOI: 10.1111/exd.15135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/04/2024] [Accepted: 06/24/2024] [Indexed: 07/20/2024]
Abstract
Autoimmune skin disease is a kind of heterogeneous disease with complicated pathogenesis. Many factors such as genetic, infectious, environmental and even psychological factors may interact together to trigger a synergistic effect for the development of abnormal innate and adaptive immune responses. Although the exact mechanisms remain unclear, recent evidence suggests that pyroptosis plays a pivotal role in the development of autoimmune skin disease. The feature of pyroptosis is the first formation of pores in cellular membranes, then cell rupture and the release of intracellular substances and pro-inflammatory cytokines, such as interleukin-1 beta (IL-1β) and IL-18. This hyperactive inflammatory programmed cell death damages the homeostasis of the immune system and advances autoimmunity. This review briefly summarises the molecular regulatory mechanisms of pyrin domain-containing protein 3 (NLRP3) inflammasome and gasdermin family, as well as the molecular mechanisms of pyroptosis, highlights the latest progress of pyroptosis in autoimmune skin disease, including systemic lupus erythematosus, psoriasis, atopic dermatitis and systemic scleroderma and attempts to identify its potential advantages as a therapeutic target or prognostic biomarker for these diseases.
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Affiliation(s)
- Yuanjun Yao
- Shanxi Key Laboratory of Stem Cells for Immunological Dermatosis, State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan Center Hospital, Taiyuan, China
| | - Zehong Wang
- Department of Laboratory Medicine, Medical Center Hospital of Qionglai City, Chengdu, China
| | - Junqin Li
- Shanxi Key Laboratory of Stem Cells for Immunological Dermatosis, State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan Center Hospital, Taiyuan, China
| | - Aihong Peng
- Shanxi Key Laboratory of Stem Cells for Immunological Dermatosis, State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan Center Hospital, Taiyuan, China
| | - Yue Cao
- Shanxi Key Laboratory of Stem Cells for Immunological Dermatosis, State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan Center Hospital, Taiyuan, China
| | - Nannan Liang
- Shanxi Key Laboratory of Stem Cells for Immunological Dermatosis, State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan Center Hospital, Taiyuan, China
| | - Kaiming Zhang
- Shanxi Key Laboratory of Stem Cells for Immunological Dermatosis, State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan Center Hospital, Taiyuan, China
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Zheng R, Ren Y, Liu X, He C, Liu H, Wang Y, Li J, Xia S, Liu Z, Ma Y, Wang D, Xu S, Wang G, Li N. Exogenous drug-induced mouse models of atopic dermatitis. Cytokine Growth Factor Rev 2024; 77:104-116. [PMID: 38272716 DOI: 10.1016/j.cytogfr.2024.01.003] [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: 01/02/2024] [Accepted: 01/09/2024] [Indexed: 01/27/2024]
Abstract
Atopic dermatitis (AD) is an inflammatory skin disease characterized by intense pruritus. AD is harmful to both children and adults, but its pathogenic mechanism has yet to be fully elucidated. The development of mouse models for AD has greatly contributed to its study and treatment. Among these models, the exogenous drug-induced mouse model has shown promising results and significant advantages. Until now, a large amount of AD-related research has utilized exogenous drug-induced mouse models, leading to notable advancements in research. This indicates the crucial significance of applying such models in AD research. These models exhibit diverse characteristics and are highly complex. They involve the use of various strains of mice, diverse types of inducers, and different modeling effects. However, there is currently a lack of comprehensive comparative studies on exogenous drug-induced AD mouse models, which hinders researchers' ability to choose among these models. This paper provides a comprehensive review of the features and mechanisms associated with various exogenous drug-induced mouse models, including the important role of each cytokine in AD development. It aims to assist researchers in quickly understanding models and selecting the most suitable one for further investigation.
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Affiliation(s)
- Rou Zheng
- Health Science Center, Ningbo University, Ningbo, China.
| | - Yan Ren
- Health Science Center, Ningbo University, Ningbo, China.
| | - Xinyue Liu
- Health Science Center, Ningbo University, Ningbo, China.
| | - Canxia He
- Health Science Center, Ningbo University, Ningbo, China.
| | - Hua Liu
- Health Science Center, Ningbo University, Ningbo, China.
| | - Yixuan Wang
- Health Science Center, Ningbo University, Ningbo, China.
| | - Jianing Li
- Health Science Center, Ningbo University, Ningbo, China.
| | - Shuya Xia
- Health Science Center, Ningbo University, Ningbo, China.
| | - Zhifang Liu
- Department of Dermatology, the First Affiliated Hospital of Ningbo University, Ningbo, China.
| | - Yizhao Ma
- Department of Dermatology, the First Affiliated Hospital of Ningbo University, Ningbo, China.
| | - Dianchen Wang
- Department of Dermatology, the First Affiliated Hospital of Ningbo University, Ningbo, China.
| | - Suling Xu
- Department of Dermatology, the First Affiliated Hospital of Ningbo University, Ningbo, China.
| | - Geng Wang
- Health Science Center, Ningbo University, Ningbo, China.
| | - Na Li
- Health Science Center, Ningbo University, Ningbo, China; Department of Dermatology, the First Affiliated Hospital of Ningbo University, Ningbo, China.
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Akhtar S, Alsayed RKME, Ahmad F, AlHammadi A, Al-Khawaga S, AlHarami SMAM, Alam MA, Al Naama KAHN, Buddenkotte J, Uddin S, Steinhoff M, Ahmad A. Epigenetic control of inflammation in Atopic Dermatitis. Semin Cell Dev Biol 2024; 154:199-207. [PMID: 37120405 DOI: 10.1016/j.semcdb.2023.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/12/2023] [Accepted: 04/16/2023] [Indexed: 05/01/2023]
Abstract
Atopic dermatitis (AD), also known as atopic eczema, is a common but also complex chronic, itchy skin condition with underlying inflammation of the skin. This skin ailment is prevalent worldwide and affects people of all ages, particularly children below five years of age. The itching and resulting rashes in AD patients are often the result of inflammatory signals, thus necessitating a closer look at the inflammation-regulating mechanisms for putative relief, care and therapy. Several chemical- as well as genetically-induced animal models have established the importance of targeting pro-inflammatory AD microenvironment. Epigenetic mechanisms are gaining attention towards a better understanding of the onset as well as the progression of inflammation. Several physiological processes with implications in pathophysiology of AD, such as, barrier dysfunction either due to reduced filaggrin / human β-defensins or altered microbiome, reprograming of Fc receptors with resulting overexpression of high affinity IgE receptors, elevated eosinophil numbers or the elevated IL-22 production by CD4 + T cells have underlying epigenetic mechanisms that include differential promoter methylation and/or regulation by non-coding RNAs. Reversing these epigenetic changes has been verified to reduce inflammatory burden through altered secretion of cytokines IL-6, IL-4, IL-13, IL-17, IL-22 etc, with benefit against AD progression in experimental models. A thorough understanding of epigenetic remodeling of inflammation in AD has the potential of opening avenues for novel diagnostic, prognostic and therapeutic options.
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Affiliation(s)
- Sabah Akhtar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar
| | - Reem Khaled M E Alsayed
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar
| | - Fareed Ahmad
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar
| | - Ayda AlHammadi
- Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar
| | - Sara Al-Khawaga
- Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar
| | | | - Majid Ali Alam
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar
| | | | - Joerg Buddenkotte
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Laboratory Animal Research Center, Qatar University, Doha 2713, Qatar
| | - Martin Steinhoff
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar; Weill Cornell Medicine-Qatar, Medical School, Doha 24144, Qatar; Dept. of Dermatology, Weill Cornell Medicine, New York 10065, NY, USA.
| | - Aamir Ahmad
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar; Department of Dermatology and Venereology, Rumailah Hospital, Hamad Medical Corporation, Doha 3050, Qatar.
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Zhong Y, Huang T, Li X, Luo P, Zhang B. GSDMD suppresses keratinocyte differentiation by inhibiting FLG expression and attenuating KCTD6-mediated HDAC1 degradation in atopic dermatitis. PeerJ 2024; 12:e16768. [PMID: 38250727 PMCID: PMC10798152 DOI: 10.7717/peerj.16768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/15/2023] [Indexed: 01/23/2024] Open
Abstract
Background Recent studies have shown that activated pyroptosis in atopic dermatitis (AD) switches inflammatory processes and causes abnormal cornification and epidermal barrier dysfunction. Little research has focused on the interaction mechanism between pyroptosis-related genes and human keratinocyte differentiation. Methods The AD dataset from the Gene Expression Omnibus (GEO) was used to identify differently expressed pyroptosis-related genes (DEPRGs). Hub genes were identified and an enrichment analysis was performed to select epithelial development-related genes. Lesions of AD patients were detected via immunohistochemistry (IHC) to verify the hub gene. Human keratinocytes cell lines, gasdermin D (GSDMD) overexpression, Caspase1 siRNA, Histone Deacetylase1 (HDAC1) siRNA, and HDAC1 overexpression vectors were used for gain-and-loss-of-function experiments. Regulation of cornification protein was determined by qPCR, western blot (WB), immunofluorescence (IF), dual-luciferase reporter assay, co-immunoprecipitation (Co-IP), and chromatin immunoprecipitation (ChIP). Results A total of 27 DEPRGs were identified between either atopic dermatitis non-lesional skin (ANL) and healthy control (HC) or atopic dermatitis lesional skin (AL) and HC. The enrichment analysis showed that these DEPRGs were primarily enriched in the inflammatory response and keratinocytes differentiation. Of the 10 hub genes identified via the protein-protein interaction network, only GSDMD was statistically and negatively associated with the expression of epithelial tight junction core genes. Furthermore, GSDMD was upregulated in AD lesions and inhibited human keratinocyte differentiation by reducing filaggrin (FLG) expression. Mechanistically, GSDMD activated by Caspase1 reduced FLG expression via HDAC1. HDAC1 decreased FLG expression by reducing histone acetylation at the FLG promoter. In addition, GSDMD blocked the interaction of Potassium Channel Tetramerization Domain Containing 6 (KCTD6) and HDAC1 to prohibit HDAC1 degradation. Conclusion This study revealed that GSDMD was upregulated in AD lesions and that GSDMD regulated keratinocytes via epigenetic modification, which might provide potential therapeutic targets for AD.
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Affiliation(s)
- Yi Zhong
- Department of Dermatology, Guangzhou Women and Children’s Medical Center, Guangzhou, China
| | - Taoyuan Huang
- Department of Dermatology, Dermatology Hospital of Southern Medical University, Guangzhou, China
| | - Xiaoli Li
- Department of Dermatology, Guangzhou Women and Children’s Medical Center, Guangzhou, China
| | - Peiyi Luo
- Department of Dermatology, Guangzhou Women and Children’s Medical Center, Guangzhou, China
| | - Bingjun Zhang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Li X, Feng L, Zhong T, Mo X, Wang D, Gu J, Chen D, Zeng X, Yan F. Gu-Ben-Hua-Shi (AESS) formula ameliorates atopic dermatitis via regulating NLRP3 signaling pathways. Saudi Pharm J 2023; 31:101792. [PMID: 37841059 PMCID: PMC10571024 DOI: 10.1016/j.jsps.2023.101792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 10/17/2023] Open
Abstract
Background Gu-ben-hua-shi (AESS) formula is a clinical experienced prescription from Guangdong Hospital of Traditional Chinese Medicine (TCM), which is used to treat atopic dermatitis (AD). Our previous work has shown that AESS has therapeutic effect on AD by regulating yes-associated protein (YAP). AESS formula has multi-component and multi-target characteristic, and need to be analyzed by systematic chemical profiling and network pharmacology technology, as well as verification of key signaling pathways. Therefore, this study aimed at investigating the efficacy and effect of AESS formula in the treatment of AD and its effect on NLRP3 signaling pathway. Methods The components of AESS formula were analyzed and identified by ultra high performance liquid chromatography/tandem mass spectrometry (UHPLC- MS/MS), and the potential mechanism of AESS formula in the treatment of AD was predicted by network pharmacology approach, with detected main components, and the potential components targeted NOD-like receptor thermal protein domain associated protein (NLRP3) signaling pathway [Direct binding with NLRP3, apoptosis-associated speck-like protein (ASC) and Caspase-1] were assessed using molecular docking. AD-like symptoms were constructed by DNCB induced BALB/c mice. The effect of AESS formula on dorsal skin structure in AD-like mice was observed using H&E staining. Furthermore, the western blotting experiment explored the expression of the NLRP3 pathway protein. Results By UHPLC-MS/MS analysis, 91 compounds were detected in AESS formula, and 76 of them were identified, while by network pharmacological analysis, 1500 component targets were obtained, and 257 of them were obtained by intersection with eczema targets. Then one of the key pathways, nucleotide-binding oligomerization domain (NOD)-like signaling pathway was obtained by KEGG enrichment analysis. Molecular docking results showed 24 main components could effectively combine with ASC and Caspase-1 (≤-7 kcal/mol). The animal experiment results further showed that AESS formula alleviates symptoms in AD-like mice. ELISA kit results showed that the expression of IL-1β and IL-18 in serum was inhibited after AESS treatment. Additionally, western blotting analysis showed that the expressions of ASC, Caspase-1 and NLRP3 protein expression in the skin tissue of mice were down-regulated after AESS treatment. The experimental results show that AESS formula inhibited the expression of NLRP3 signaling pathway for the treatment of AD. Conclusions AESS formula can improve AD symptoms in mice by inhibiting the activation of NLRP3 inflammasome and the expression of the related downstream inflammatory cytokines.
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Affiliation(s)
- Xiong Li
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Luyao Feng
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 117000, China
| | - Tingjing Zhong
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Xiumei Mo
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong Province 510120, China
| | - Dong Wang
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 117000, China
| | - Jiangyong Gu
- The Research Centre of Integrative Medicine, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Dacan Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong Province 510120, China
| | - Xing Zeng
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Fenggen Yan
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong Province 510120, China
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Liu T, He Y, Liao Y. Esculentoside A ameliorates DNCB-induced atopic dermatitis by suppressing the ROS-NLRP3 axis via activating the Nrf2 pathway. Clin Exp Pharmacol Physiol 2023; 50:844-854. [PMID: 37439364 DOI: 10.1111/1440-1681.13809] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 07/14/2023]
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin condition with a high prevalence. Inflammation and oxidative stress are strongly associated with AD progression. Esculentoside A (EsA) inhibits inflammation and oxidative stress in various diseases. However, whether EsA mitigates AD by suppressing inflammation and oxidative stress remains unknown. A mouse model of AD was constructed by the induction of 1-chloro-2,4-dinitrochlorobenzene (DNCB). The mechanism of EsA and its effects on AD symptoms, pathology, inflammation and oxidative stress were investigated through histopathological staining, enzyme-linked immunosorbent assay, blood cells analysis, colorimetric measurement and western blot analysis. EsA improved the clinical symptoms and increased clinical skin scores in AD mice. Skin thickening of the epidermis and dermal tissues and the mast cell numbers in AD mice were reduced with the EsA treatment. EsA decreased the relative mRNA level of thymic stromal lymphopoietin, interleukin (IL)-4, IL-5 and IL-13; the serum concentrations of immunoglobulin E (IgE) and IL-6; and the numbers of white blood cells (WBC) and WBC subtypes, including basophil, lymphocytes, eosinophil, neutrophil and monocytes in DNCB-induced mice. DNCB caused higher levels of oxidative stress, which was reversed with the administration of EsA. Mechanically, EsA upregulated the expression of Nrf2 but downregulated the level of NLRP3 inflammasome in AD mice. The inhibitor of Nrf2 significantly recovered the EsA-induced changes in the NLRP3 inflammasome proteins in DNCB-treated mice. Therefore, EsA improved the clinical and pathological symptoms, inflammation and oxidative stress experienced by DNCB-induced mice and was involved in the inactivation of NLRP3 inflammasome by activating Nrf2.
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Affiliation(s)
- Tao Liu
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yuanmin He
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yongmei Liao
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, China
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Ardizzone A, Repici A, Capra AP, De Gaetano F, Bova V, Casili G, Campolo M, Esposito E. Efficacy of the Radical Scavenger, Tempol, to Reduce Inflammation and Oxidative Stress in a Murine Model of Atopic Dermatitis. Antioxidants (Basel) 2023; 12:1278. [PMID: 37372008 DOI: 10.3390/antiox12061278] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/11/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Atopic dermatitis (AD) is the most common chronically relapsing inflammatory skin disease, predominantly common in children; it is characterized by an eczematous pattern generally referable to skin dryness and itchy papules that become excoriated and lichenified in the more advanced stages of the disease. Although the pathophysiology of AD is not completely understood, numerous studies have demonstrated the complex interaction between genetic, immunological, and environmental factors, which acts to disrupt skin barrier function. Free radicals play a key role by directly damaging skin structure, inducing inflammation and weakening of the skin barrier. Tempol (4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl) is a membrane-permeable radical scavenger, known to be a stable nitroxide, which exhibits excellent antioxidant effects in several human disorders, such as osteoarthritis and inflammatory bowel diseases. Considering the few existing studies on dermatological pathologies, this study aimed to evaluate tempol, in a cream formulation, in a murine model of AD. Dermatitis was induced in mice via dorsal skin application of 0.5% Oxazolone, three times a week for two weeks. After induction, mice were treated with tempol-based cream for another two weeks at three different doses of 0.5%, 1% and 2%. Our results demonstrated the ability of tempol, at the highest percentages, to counteract AD by reducing the histological damage, decreasing mast cell infiltration, and improving the skin barrier properties, by restoring the tight junction (TJs) and filaggrin. Moreover, tempol, at 1% and 2%, was able to modulate inflammation by reducing the nuclear factor kappa-light-chain-enhancer of the activated B cell (NF-κB) pathway, as well as tumor necrosis factor (TNF)-α and interleukin (IL)-1β expression. Topical treatment also attenuated oxidative stress by modulating nuclear factor erythroid 2-related factor 2 (Nrf2), manganese superoxide dismutase (MnSOD), and heme oxygenase I (HO-1) expression levels. The obtained results demonstrate the numerous advantages provided by the topical administration of a tempol-based cream formulation, in reducing inflammation and oxidative stress through modulation of the NF-κB/Nrf2 signaling pathways. Therefore, tempol could represent an alternative anti-atopic approach to treating AD, thereby improving skin barrier function.
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Affiliation(s)
- Alessio Ardizzone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
| | - Alberto Repici
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
| | - Anna Paola Capra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
| | - Federica De Gaetano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
| | - Valentina Bova
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
| | - Giovanna Casili
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
| | - Michela Campolo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 98166 Messina, Italy
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Bai X, Rao X, Wang Y, Shen H, Jin X. A homogeneous Lonicera japonica polysaccharide alleviates atopic dermatitis by promoting Nrf2 activation and NLRP3 inflammasome degradation via p62. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116344. [PMID: 36889421 DOI: 10.1016/j.jep.2023.116344] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/18/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lonicera japonica Thunb. is a traditional medicinal herb with a long history owing to its widespread use in Asia for the treatment of several inflammatory diseases including allergic dermatitis; however, its active components and mechanism of action have not been fully elucidated. AIM OF THE STUDY In this study, a homogeneous polysaccharide with strong anti-inflammatory effects was extracted from the traditional Chinese medicine Lonicera japonica. The mechanism by which the polysaccharide WLJP-025p regulates p62 to activate Nrf2, promote NLRP3 inflammasome degradation, and improve AD was investigated. MATERIALS AND METHODS An AD model was established using DNCB, and saline was used as a control. The WLJP-L and WLJP-H groups were administered 30 and 60 mg/kg WLJP-025p during the model challenge period, respectively. The therapeutic effect of WLJP-025p was evaluated by determining the skin thickness, performing HE and toluidine blue staining, detecting TSLP via IHC, and determining serum IgE and IL-17 levels. Th17 differentiation was detected using flow cytometry. IF and WB were performed to evaluate the expression levels of c-Fos, p-p65, NLRP3 inflammatory bodies, autophagy pathway, ubiquitination, and Nrf2 proteins. RESULTS WLJP-025p significantly inhibited DNCB-induced skin hyperplasia and pathological abnormalities and increased TSLP levels in mice. The differentiation of Th17 in the spleen, IL-17 release, p-c-Fos, p-p65 protein expression, and NLRP3 inflammasome activation in the skin tissues were reduced. Furthermore, p62 expression, p62 Ser403 phosphorylation, and ubiquitinated proteins were increased. CONCLUSIONS WLJP-025p improved AD in mice by upregulating p62 to activate Nrf2 and promote the ubiquitination and degradation of NLRP3.
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Affiliation(s)
- Xinyu Bai
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, Jilin Province, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China.
| | - Xiuming Rao
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China.
| | - Yuqi Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China.
| | - Hengyan Shen
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563000, China.
| | - Xuejun Jin
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, Jilin Province, China.
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Fan M, Wedamulla NE, Choi YJ, Zhang Q, Bae SM, Kim EK. Tenebrio molitor Larva Trypsin Hydrolysate Ameliorates Atopic Dermatitis in C57BL/6 Mice by Targeting the TLR-Mediated MyD88-Dependent MAPK Signaling Pathway. Nutrients 2022; 15:nu15010093. [PMID: 36615751 PMCID: PMC9824148 DOI: 10.3390/nu15010093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Atopic dermatitis (AD) is a widely researched chronic inflammatory skin disease with a complex etiology. The increased prevalence of AD necessitates exploration of natural sources as potential therapeutic agents with limited side effects. In the current study, a 1-chloro-2,4-dinitrobenzene (DNCB)-induced AD mouse model was used to examine the anti-AD effects of Tenebrio molitor trypsin hydrolysate (TMTH) and its underlying molecular mechanism. DNCB-treated mice were treated with TMTH (1 and 10 mg/kg), and prednisolone (3 mg/kg) was used as the positive control. Serum and skin tissue samples were collected for subsequent analyses. The expression levels of proteins linked to the myeloid differentiation primary response 88 (MyD88)-dependent mitogen-activated protein kinase (MAPK) signaling pathway and serum IgE levels were estimated via Western blotting technique and ELISA (enzyme-linked immunosorbent assay), respectively. Inflammatory cell infiltration and thickening of the dorsal skin were measured using toluidine blue and hematoxylin and eosin staining, respectively. Oral administration of TMTH significantly reduced mast cell infiltration and dermal and epidermal thickness. Moreover, TMTH treatment reduced serum IgE levels. Western blotting confirmed that TMTH treatment suppressed the MyD88-dependent MAPK signaling pathway. Therefore, TMTH substantially inhibited AD-like skin lesion formation via immunomodulation, showing considerable potential for AD treatment.
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Affiliation(s)
- Meiqi Fan
- Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University, Chungju 27478, Republic of Korea
| | - Nishala Erandi Wedamulla
- Department of Food Science and Nutrition, College of Health Science, Dong-A University, Busan 49315, Republic of Korea
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Dong-A University, Busan 49315, Republic of Korea
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
- Department of Export Agriculture, Faculty of Animal Science and Export Agriculture, Uva Wellassa University, Badulla 90000, Sri Lanka
| | - Young-Jin Choi
- Department of Food Science and Nutrition, College of Health Science, Dong-A University, Busan 49315, Republic of Korea
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Dong-A University, Busan 49315, Republic of Korea
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Qun Zhang
- Department of Food Science and Nutrition, College of Health Science, Dong-A University, Busan 49315, Republic of Korea
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Sung Mun Bae
- Gyeongnam Agricultural Research and Extension Services, Jinju 52733, Republic of Korea
- Correspondence: (S.M.B.); (E.-K.K.)
| | - Eun-Kyung Kim
- Department of Food Science and Nutrition, College of Health Science, Dong-A University, Busan 49315, Republic of Korea
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Dong-A University, Busan 49315, Republic of Korea
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
- Center for Food & Bio Innovation, Dong-A University, Busan 49315, Republic of Korea
- Correspondence: (S.M.B.); (E.-K.K.)
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