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Ma Y, Liu Y, Zhong Y, Li X, Xu Y, Chen L, Gong L, Huang H, Chen X, He Y, Qiang L. Oroxylin A attenuates psoriasiform skin inflammation by direct targeting p62 (sequestosome 1) via suppressing M1 macrophage polarization. Br J Pharmacol 2024. [PMID: 39313956 DOI: 10.1111/bph.17349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 08/21/2024] [Accepted: 08/22/2024] [Indexed: 09/25/2024] Open
Abstract
BACKGROUND AND PURPOSE Psoriasis results from the interplay of innate and adaptive immunity in the skin. Oroxylin A (OA) has shown anti-inflammatory effects in various disorders. This study explores oroxylin A potential in treating psoriasis, particularly its impact on type I macrophage (Mφ1) polarization. EXPERIMENTAL APPROACH Oroxylin A-mediated therapeutic effects were evaluated using imiquimod-induced or IL-23-injected psoriatic mice models, followed by proteomics assays to predict potential signalling and targeting proteins. Immunofluorescence and immunoblot assays verified that oroxylin A suppresses NF-kB signalling in M1 macrophages. Co-immunoprecipitation and microscale thermophoresis (MST) assays further demonstrated that p62 (sequestosome 1) is the target protein for oroxylin A in macrophages. Oroxylin A-p62-mediated suppression of psoriasis was validated in an imiquimod-induced p62 conditional knockout (cKO) mice model. KEY RESULTS Oroxylin A demonstrated therapeutic efficacy in murine models induced by imiquimod or IL-23 by attenuating cutaneous inflammation and mitigating Mφ1 polarization via NF-κB signalling. Proteomics analysis suggested SQSTM1/p62 as a key target, confirmed to interact directly with oroxylin A. Oroxylin A disrupted the p62-PKCζ interaction by binding to PB1 domain of p62. Its anti-inflammatory effects were significantly reduced in macrophages from p62 cKO mice compared to the wild-type (WT) mice in psoriasis model, supporting oroxylin A role in suppressing Mφ1 polarization through its interaction with p62. CONCLUSION AND IMPLICATIONS Our findings demonstrated oroxylin A suppressed psoriasiform skin inflammation in mouse models by blocking the PKCζ-p62 interaction, subsequently inhibiting the activation of NF-κB p65 phosphorylation in macrophages.
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Affiliation(s)
- Yuxiang Ma
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Department of Pharmacology, Guilin Medical University, Guilin, China
| | - Yunyao Liu
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- 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
| | - You Zhong
- Zhuhai United Laboratories Co., Ltd., Zhuhai, Guangdong, China
| | - Xiangzheng Li
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yujiao Xu
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Leyi Chen
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Litong Gong
- Jiangsu Chia Tai-Tianqing Pharmaceutical Co., Ltd., Nanjing, China
| | - He Huang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Xu Chen
- 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
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China
| | - Yuan He
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Lei Qiang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- 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
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Chen W, Liang J, He S, Liang Q, Tian W, Lu A, Li D, Huang Z, Wu G. She-Chuang-Si-Wu-Tang Alleviates Inflammation and Itching Symptoms in a Psoriasis Mouse Model by Regulating the Th17/IL-17 Axis via the STAT3/MAPK Pathways. J Inflamm Res 2024; 17:5957-5975. [PMID: 39247836 PMCID: PMC11380483 DOI: 10.2147/jir.s472417] [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: 06/05/2024] [Accepted: 08/28/2024] [Indexed: 09/10/2024] Open
Abstract
Purpose Psoriasis is an immune-related disorder characterized by silver scales, epidermis thickness, and itching. She-Chuang-Si-Wu-Tang (SSWT), a traditional Chinese medicine decoction, has been used clinically for 400 years. Although it benefits psoriasis treatment, the mechanism of action is still unclear. This study explores SSWT's molecular mechanism in treating psoriasis through network pharmacology analysis and experiments. Methods We identified relevant SSWT and psoriasis targets using network pharmacology and conducted SSWT quality control with high-performance liquid chromatography (HPLC). A mouse model of psoriasis was established using imiquimod (IMQ), with the drug administered continuously for seven days, spanning an eight-day period. During the experiment, we observed spontaneous scratching behaviors and assessed the Psoriasis Area and Severity Index (PASI) scores. At the conclusion of the experiment, we examined skin tissue pathology under an optical microscope and measured epidermal thickness. Additionally, we used enzyme-linked immunosorbent assay (ELISA) and quantitative reverse transcription polymerase chain reaction (qRT-PCR) to measure interleukin (IL)-23, IL-17A, IL-17F, and interferon (IFN)-γ levels in the mice's serum and their mRNA expression in the skin. Western blot analysis was conducted to assess protein levels related to signaling pathways. Results Results indicate that SSWT may target IL-17 signaling pathways and T helper (Th) 17 cell differentiation, as predicted by network pharmacology. SSWT significantly improved the PASI and Baker scores, reduced epidermal thickness, and decreased spontaneous scratching in IMQ-induced mice. Additionally, SSWT treatment significantly lowered the concentrations of inflammatory factors in the serum and skin lesions, as well as mRNA expression levels, compared to the IMQ group. Furthermore, SSWT significantly inhibited the phosphorylation of both the signal transducer and activator of transcription 3 (STAT3) and mitogen-activated protein kinase (MAPK) pathways. Conclusion In summary, this study unveiled the potential anti-psoriatic mechanism of SSWT, offering new evidence for its clinical application.
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Affiliation(s)
- Weixiong Chen
- College of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, People's Republic of China
| | - Jianqiang Liang
- Department of Dermatology, the First People's Hospital of Yulin, Yulin, Guangxi, 537000, People's Republic of China
| | - Shuang He
- College of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
- Key Laboratory for Complementary and Alternative Medicine Experimental Animal Models of Guangxi, Nanning, Guangxi, 530299, People's Republic of China
- Guangxi Key Laboratory of Translational Medicine for Treating High-Incidence Infectious Diseases with Integrative Medicine, Nanning, Guangxi, 530299, People's Republic of China
| | - Qingsong Liang
- College of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
- Key Laboratory for Complementary and Alternative Medicine Experimental Animal Models of Guangxi, Nanning, Guangxi, 530299, People's Republic of China
- Guangxi Key Laboratory of Translational Medicine for Treating High-Incidence Infectious Diseases with Integrative Medicine, Nanning, Guangxi, 530299, People's Republic of China
| | - Wenting Tian
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
| | - Aobo Lu
- College of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
| | - Demin Li
- College of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
| | - Zhicheng Huang
- College of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
| | - Guanyi Wu
- College of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, 530299, People's Republic of China
- Key Laboratory for Complementary and Alternative Medicine Experimental Animal Models of Guangxi, Nanning, Guangxi, 530299, People's Republic of China
- Guangxi Key Laboratory of Translational Medicine for Treating High-Incidence Infectious Diseases with Integrative Medicine, Nanning, Guangxi, 530299, People's Republic of China
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Yanping H, Ting G, Xinzhu Z, Yaya L, Yuna Z, Qing L, Xueli M, Jing C. Yinxie I Formula attenuates imiquimod-induced psoriasis-like skin inflammation via IL-23/IL-17 axis. Arch Dermatol Res 2024; 316:540. [PMID: 39158742 PMCID: PMC11333517 DOI: 10.1007/s00403-024-03288-3] [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: 07/12/2024] [Revised: 07/12/2024] [Accepted: 08/05/2024] [Indexed: 08/20/2024]
Abstract
Psoriasis is considered a chronic inflammatory skin disorder characterized by keratinocytes hyperproliferation. The IL-23/IL-17 immune pathway has been substantiated in numerous studies to be closely associated with psoriasis progression. Yinxie I Formula is a traditional Chinese medicine made from 9 herbal medicines, which has excellent clinical efficacy in psoriasis. However, to date, the mechanism of action of Yinxie I Formula against psoriasis remains unknown. In this perspective, we discuss the efficacy of Yinxie I Formula in mice with imiquimod (IMQ) induced psoriasis. Yinxie I Formula significantly reduced the area of skin lesions and the inflammatory response in mice with psoriasis. Furthermore, Yinxie I Formula alleviated the expression levels of inflammation-related genes IL-6, IL-17 A, IL-22, IL-23, TNF-α and IL-23, IL-18, IL-6 and IL-1β-related proteins and alleviated the abnormal surge of dendritic cells, macrophages and T cells in the skin and spleen. Meanwhile we found that Yinxie I Formula reduced the release of NO, TNF-α, IL-1β and IL-23 in lipopolysaccharide-induced mouse macrophage RAW264.7 cell line. The results suggest that the therapeutic mechanism of Yinxie I Formula may also be correlated with the STAT signaling pathway. We further analyzed the active ingredient of Yinxie I Formula, Buddleoside, which may be the main substance that exerts the therapeutic effect. In conclusion, we have investigated that Yinxie I Formula attenuates the IMQ-induced inflammatory response in psoriasis by inhibiting the IL-23/IL-17 axis, which lays the foundation for the antipsoriasis mechanism and provides a theoretical basis for the clinical promotion of Yinxie I Formula.
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Affiliation(s)
- He Yanping
- Department of Dermatology, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China
| | - Gao Ting
- Department of Dermatology, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China
| | - Zhou Xinzhu
- Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China
| | - Lei Yaya
- Department of Dermatology, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China
| | - Zhao Yuna
- Department of Dermatology, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China
| | - Liu Qing
- Department of Dermatology, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China
| | - Ma Xueli
- Department of Dermatology, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China
| | - Chen Jing
- Department of Dermatology, General Hospital of Ningxia Medical University, No. 804 Shengli Street, Yinchuan, 750004, Ningxia Hui Autonomous Region, PR China.
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Yao M, Oduro PK, Akintibu AM, Yan H. Modulation of the vitamin D receptor by traditional Chinese medicines and bioactive compounds: potential therapeutic applications in VDR-dependent diseases. Front Pharmacol 2024; 15:1298181. [PMID: 38318147 PMCID: PMC10839104 DOI: 10.3389/fphar.2024.1298181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
The Vitamin D receptor (VDR) is a crucial nuclear receptor that plays a vital role in various physiological functions. To a larger extent, the genomic effects of VDR maintain general wellbeing, and its modulation holds implications for multiple diseases. Current evidence regarding using vitamin D or its synthetic analogs to treat non-communicable diseases is insufficient, though observational studies suggest potential benefits. Traditional Chinese medicines (TCMs) and bioactive compounds derived from natural sources have garnered increasing attention. Interestingly, TCM formulae and TCM-derived bioactive compounds have shown promise in modulating VDR activities. This review explores the intriguing potential of TCM and bioactive compounds in modulating VDR activity. We first emphasize the latest information on the genetic expression, function, and structure of VDR, providing a comprehensive understanding of this crucial receptor. Following this, we review several TCM formulae and herbs known to influence VDR alongside the mechanisms underpinning their action. Similarly, we also discuss TCM-based bioactive compounds that target VDR, offering insights into their roles and modes of action.
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Affiliation(s)
- Minghe Yao
- Henan University of Chinese Medicine, Zhengzhou, China
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Zhengzhou, China
| | - Patrick Kwabena Oduro
- Jacobs School of Medicine and Biomedical Sciences, The State University of New York, University at Buffalo, Buffalo, NY, United States
| | - Ayomide M. Akintibu
- School of Community Health and Policy, Morgan State University, Baltimore, MD, United States
| | - Haifeng Yan
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
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5
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Kang P, Chen J, Wang S, Zhang S, Li S, Guo S, Song P, Liu L, Wang G, Gao T, Zhang W, Li C. Advanced Glycation End Products-Induced Activation of Keratinocytes: A Mechanism Underlying Cutaneous Immune Response in Psoriasis. J Innate Immun 2023; 15:876-892. [PMID: 37989127 PMCID: PMC10715758 DOI: 10.1159/000534639] [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: 03/08/2023] [Accepted: 10/15/2023] [Indexed: 11/23/2023] Open
Abstract
Psoriasis is a common inflammatory skin disease, in which epidermal keratinocytes play a vital role in its pathogenesis by acting both as the responder and as the accelerator to the cutaneous psoriatic immune response. Advanced glycation end products (AGEs) are a class of proinflammatory metabolites that are commonly accumulating in cardiometabolic disorders. Recent studies have also observed the increased level of AGEs in the serum and skin of psoriasis patients, but the role of AGEs in psoriatic inflammation has not been well investigated. In the present study, we initially detected abnormal accumulation of AGEs in epidermal keratinocytes of psoriatic lesions collected from psoriasis patients. Furthermore, AGEs promoted the proliferation of keratinocytes via upregulated Keratin 17 (K17)-mediated p27KIP1 inhibition followed by accelerated cell cycle progression. More importantly, AGEs facilitated the production of interleukin-36 alpha (IL-36α) in keratinocytes, which could enhance T helper 17 (Th17) immune response. In addition, the induction of both K17 and IL-36α by AGEs in keratinocytes was dependent on the activation of signal transducer and activator of transcription 1/3 (STAT1/3) signaling pathways. At last, the effects of AGEs on keratinocytes were mediated by the receptor for AGEs (RAGE). Taken together, these findings support that AGEs potentiate the innate immune function of keratinocytes, which contributes to the formation of psoriatic inflammation. Our study implicates AGEs as a potential pathogenic link between psoriasis and cardiometabolic comorbidities.
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Affiliation(s)
- Pan Kang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jianru Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shiyu Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shaolong Zhang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuli Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Sen Guo
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Pu Song
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ling Liu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tianwen Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Weigang Zhang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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Xia T, Fu S, Yang R, Yang K, Lei W, Yang Y, Zhang Q, Zhao Y, Yu J, Yu L, Zhang T. Advances in the study of macrophage polarization in inflammatory immune skin diseases. J Inflamm (Lond) 2023; 20:33. [PMID: 37828492 PMCID: PMC10568804 DOI: 10.1186/s12950-023-00360-z] [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: 07/21/2023] [Accepted: 10/02/2023] [Indexed: 10/14/2023] Open
Abstract
When exposed to various microenvironmental stimuli, macrophages are highly plastic and primarily polarized into the pro-inflammatory M1-type and the anti-inflammatory M2-type, both of which perform almost entirely opposing functions. Due to this characteristic, macrophages perform different functions at different stages of immunity and inflammation. Inflammatory immune skin diseases usually show an imbalance in the M1/M2 macrophage ratio, and altering the macrophage polarization phenotype can either make the symptoms worse or better. Therefore, this review presents the mechanisms of macrophage polarization, inflammation-related signaling pathways (JAK/STAT, NF-κB, and PI3K/Akt), and the role of both in inflammatory immune skin diseases (psoriasis, AD, SLE, BD, etc.) to provide new directions for basic and clinical research of related diseases.
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Affiliation(s)
- Tingting Xia
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Shengping Fu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Ruilin Yang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Kang Yang
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Wei Lei
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Ying Yang
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qian Zhang
- Department of Human Anatomy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yujie Zhao
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jiang Yu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Limei Yu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.
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Jin Z, Huang Q, Peng J, Liu Z, Hu R, Wu J, Wang F. MiR-125a-3p alleviates hyperproliferation of keratinocytes and psoriasis-like inflammation by targeting TLR4/NF-κB pathway. Postepy Dermatol Alergol 2023; 40:447-461. [PMID: 37545827 PMCID: PMC10399661 DOI: 10.5114/ada.2023.129155] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 03/03/2023] [Indexed: 08/08/2023] Open
Abstract
Introduction Psoriasis is a chronic auto-inflammatory dermatosis characterized by hyperproliferation of keratinocytes. Emerging evidence has validated the dysregulated expression of microRNAs (miRNAs/miRs) in psoriasis patients. Aim To probe into the role and precise mechanism of miR-125a-3p in HaCaT cells and imiquimod (IMQ)-stimulated psoriasis-like mice. Material and methods In M5-treated HaCaT cells and IMQ-stimulated psoriasis-like mice, real-time quantitative polymerase chain reaction and western blot analysis were performed for detecting gene expression. Hematoxylin and eosin staining was used to evaluate pathological morphology of IMQ-induced psoriasis skin. The proliferation of keratinocytes was assessed using Cell Counting Kit-8 assay and Ki67 positive staining. The combination between miR-125a-3p and Toll-like receptor 4 (TLR4) was confirmed by luciferase reporter assay. Results Our study showed reduced miR-125a-3p expression in psoriasis patients, psoriasis-like inflammatory cell models, and IMQ-generated psoriasis-like mouse models. MiR-125a-3p repressed the activity of keratinocytes in vitro by suppressing cell proliferation, inhibiting the production of psoriasis-related genes and inflammatory genes, and inactivating the NF-κB and interleukin (IL)-1β pathways. Notably, the psoriasis-like inflammation was repressed by intradermal injection of agomiR-125a-3p in psoriatic mouse models in vivo. Mechanically, miR-125a-3p targeted and negatively regulated TLR4. Furthermore, the elevated expression of TLR4 reversed the influences of miR-125a-3p mimics on HaCaT cells. Conclusions Upregulation of miR-125a-3p protects keratinocytes against hyperproliferation and inflammatory damage by inhibiting TLR4, suggesting that the miR-125a-3p/TLR4 axis might become a novel target for the prevention of psoriasis.
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Affiliation(s)
- Zhao Jin
- Department of Dermatology, Wuhan No. 1 Hospital, Wuhan, Hubei, China
| | - Qinsi Huang
- Department of Dermatology, Wuhan No. 1 Hospital, Wuhan, Hubei, China
| | - Jing Peng
- Department of Dermatology, Wuhan No. 1 Hospital, Wuhan, Hubei, China
| | - Zhong Liu
- Department of Dermatology, Wuhan No. 1 Hospital, Wuhan, Hubei, China
| | - Rongyi Hu
- Department of Dermatology, Wuhan No. 1 Hospital, Wuhan, Hubei, China
| | - Juan Wu
- Department of Dermatology, Wuhan No. 1 Hospital, Wuhan, Hubei, China
| | - Fei Wang
- Department of Chinese Medicine, Wuhan No. 1 Hospital, Wuhan, Hubei, China
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Naringin Prevents Cognitive Dysfunction in Aging Rats by Inhibiting Toll-Like Receptor 4 (TLR4)/NF- κB Pathway and Endoplasmic Reticulum Stress. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2023; 2023:2919811. [PMID: 36865741 PMCID: PMC9974290 DOI: 10.1155/2023/2919811] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/23/2022] [Accepted: 09/23/2022] [Indexed: 02/25/2023]
Abstract
Objective Naringin is a flavonoid derived from Chinese herbs. According to earlier studies, naringin may have the potential to alleviate aging-induced cognitive dysfunction. Therefore, this study attempted to explore the protective effect and underlying mechanism of naringin on aging rats with cognitive dysfunction. Methods After the construction of a model of aging rats with cognitive dysfunction through subcutaneous injection of D-galactose (D-gal; 150 mg/kg), intragastric administration of naringin (100 mg/kg) was performed for treatment. Behavioral tests, including Morris water maze test (MWM), novel object recognition test (NORT), and fear conditioning test, were used to measure the cognitive function; ELISA and biochemical tests were used to determine the levels of interleukin (IL)-1β, IL-6, monocyte chemoattractant protein-1 (MCP-1), brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), malondialdehyde (MDA), and glutathione peroxidase (GSH-Px) in the hippocampus of rats in each group, respectively; H&E staining was used to observe the pathological changes in the hippocampus; Western blot was used to examine the expression of toll-like receptor 4 (TLR4)/NF-κB pathway-related proteins and endoplasmic reticulum (ER) stress-related proteins in the hippocampus. Results The model was successfully constructed by subcutaneous injection of D-gal (150 mg/kg). The behavioral test results showed that naringin could ameliorate the cognitive dysfunction and alleviate the histopathological damage of hippocampus. Moreover, naringin significantly improve the inflammatory response (the levels of IL-1β, IL-6, and MCP-1 were decreased), oxidative stress response (MDA level was increased while GSH-Px activity was decreased), and ER stress (the expression of glucose-regulated protein 78 (GRP78), C/-EBP homologous protein (CHOP), and transcription factor 6 (ATF6) expression was downregulated), and increased the levels of neurotrophic factors BDNF and NGF in D-gal rats. Besides, further mechanistic studies revealed the downregulation of naringin on TLR4/NF-κB pathway activity. Conclusion Naringin may inhibit inflammatory response, oxidative stress, and ER stress by downregulating TLR4/NF-κB pathway activity, thereby improving cognitive dysfunction and alleviating histopathological damage of hippocampus in aging rats. Briefly, naringin is an effective drug for the treatment of cognitive dysfunction.
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Nguyen LTH. Signaling pathways and targets of natural products in psoriasis treatment. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/emed.2022.00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Aim: Psoriasis is a common chronic inflammatory skin disorder, which has adverse effects on patients’ quality of life. Natural products exhibit significant therapeutic capacities with small side effects and might be preferable alternative treatments for patients with psoriasis. This study summarizes the signaling pathways with the potential targets of natural products and their efficacy for psoriasis treatment.
Methods: The literature for this article was acquired from PubMed and Web of Science, from January 2010 to December 2020. The keywords for searching included “psoriasis” and “natural product”, “herbal medicine”, “herbal therapy”, “medicinal plant”, “medicinal herb” or “pharmaceutical plant”.
Results: Herbal extracts, natural compounds, and herbal prescriptions could regulate the signaling pathways to alleviate psoriasis symptoms, such as T helper 17 (Th17) differentiation, Janus kinase (JAK)/signal transducer and activator of transcription (STAT), nuclear factor-kappa B (NF-κB), mitogen‑activated protein kinase (MAPK), phosphatidylinositol 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR), and other signaling pathways, which are involved in the inflammatory response and keratinocyte hyperproliferation. The anti-psoriatic effect of natural products in clinical trials was summarized.
Conclusions: Natural products exerted the anti-psoriatic effect by targeting multiple signaling pathways, providing evidence for the investigation of novel drugs. Further experimental research should be performed to screen and characterize the therapeutic targets of natural products for application in psoriasis treatment.
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Affiliation(s)
- Ly Thi Huong Nguyen
- Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
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Lee SH, Kim HJ, Oh GS, Lee SB, Khadka D, Cao W, Choe SK, Shim H, Kim CD, Kwak TH, So HS. Augmentation of NAD + by Dunnione Ameliorates Imiquimod-Induced Psoriasis-Like Dermatitis in Mice. J Inflamm Res 2022; 15:4623-4636. [PMID: 35991005 PMCID: PMC9386739 DOI: 10.2147/jir.s372543] [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: 04/27/2022] [Accepted: 08/07/2022] [Indexed: 11/23/2022] Open
Abstract
Background Dunnione has anti-inflammatory properties arising from its ability to alter the ratio of NAD+/NADH through NAD(P)H quinone oxidoreductase 1 (NQO1) enzymatic action, followed by subsequent inhibition of NF-κB and inflammatory cytokines. Psoriasis is a chronic, inflammatory skin disorder in which the IL-23/Th17 axis plays an important role in inflammation. However, it is unclear whether modulation of NAD+ levels affects psoriasis, such as skin inflammation. Therefore, in this study, we investigated the effect of NAD+/NADH ratio modulation on imiquimod (IMQ)-induced, psoriasis-like skin inflammation in mice. Methods Psoriasis-like skin inflammation was generated by daily topical application of IMQ cream. The severity of dermatitis was assessed using the Psoriasis Area Severity Index (PASI) and histochemistry. Expression of inflammatory cytokines was detected by enzyme-linked immunosorbent assay and quantitative PCR. Acetylation of NF-κB p65 and STAT3 was determined by Western blotting. Results Dunnione improved IMQ-induced epidermal hyperplasia and inflammation, consistent with decreased levels of inflammatory cytokines (IL-17, IL-22, and IL-23) in skin lesions. Moreover, we found that an increase in the NAD+/NADH ratio by dunnione restored SIRT1 activity, thereby reduced imiquimod-induced STAT3 acetylation, which modulates the expression of psoriasis-promoting inflammatory cytokines, such as IL-17, IL-22, and IL-23. Conclusion Pharmacological modulation of cellular NAD+ levels could be a promising therapeutic approach for psoriasis-like skin disease.
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Affiliation(s)
- Seung Hoon Lee
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Hyung-Jin Kim
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Gi-Su Oh
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Su-Bin Lee
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Dipendra Khadka
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Wal Cao
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Seong-Kyu Choe
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Hyeok Shim
- Department of Hemato-Oncology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Chang-Deok Kim
- Department of Dermatology, College of Medicine, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Tae Hwan Kwak
- R&D Center, NADIANBIO Ltd, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Hong-Seob So
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Jeonbuk, 54538, Republic of Korea.,R&D Center, NADIANBIO Ltd, Iksan, Jeonbuk, 54538, Republic of Korea
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11
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Wang Z, Zhang HM, Guo YR, Li LL. Molecular mechanisms of Biyu decoction as treatment for psoriasis: A network pharmacology and molecular docking study. World J Clin Cases 2022; 10:7224-7241. [PMID: 36158000 PMCID: PMC9353920 DOI: 10.12998/wjcc.v10.i21.7224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/24/2022] [Accepted: 06/03/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The therapeutic effects of a combination of Chinese medicines called Biyu decoction have been clinically verified, although its molecular targets in psoriasis remain unknown.
AIM To explore the molecular mechanisms of Biyu decoction for psoriasis treatment.
METHODS In this network pharmacology and molecular docking study, the Traditional Chinese Medicine Systems Pharmacology database was searched for Biyu decoction active ingredients. GeneCards, Online Mendelian Inheritance in Man, PharmGkb, Therapeutic Target Database, and DrugBank databases were searched for psoriasis-related genes. The genes targeted by the decoction’s active ingredient and disease genes were intersected to obtain predictive targets of the drug during psoriasis treatment. Cytoscape 3.8.0 was used to construct a drug component/ target disease network. The The functional protein association networks database and Cytoscape were used to construct a protein-protein interaction network and streamline the core network. The Gene Ontology and Kyoto Encyclopedia of Genes and Genomes were used for pathway enrichment analysis. Molecular docking technology was used to verify the drug component/target disease network.
RESULTS We screened 117 major active ingredients, including quercetin, kaempferol, naringenin, and acetyl-shikonin, and identified 213 gene targets, such as MAPK3, JUN, FOS, MYC, MAPK8, STAT3, and NFKBIA. Using a molecular docking analysis, the main active ingredients demonstrated good binding to the core targets. The Gene Ontology analysis showed that these ingredients were significantly associated with biological activities, such as transcription factor DNA binding, RNA polymerase II-specific DNA binding of transcription factors, and cytokine receptor binding; responses to lipopolysaccharides, molecules of bacterial origin, and oxidative stress; and were mainly distributed in membrane rafts, microdomains, and regions. The Kyoto Encyclopedia of Genes and Genomes analysis showed that decoction ingredients act on Th17 cell differentiation, tumor necrosis factor and mitogen-activated protein signaling pathways, the interleukin-17 signaling pathway, and the PI3K-Akt signaling pathway.
CONCLUSION Biyu decoction may be effective against psoriasis through multi-component, multi-target, and multi-channel synergy.
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Affiliation(s)
- Zi Wang
- Department of Dermatology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Hao-Min Zhang
- Department of Dermatology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yuan-Rui Guo
- Department of Dermatology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Ling-Ling Li
- Department of Dermatology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
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12
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Kordulewska N, Topa J, Cieślińska A, Jarmołowska B. Osthole Regulates Secretion of Pro-Inflammatory Cytokines and Expression of TLR2 and NF-κB in Normal Human Keratinocytes and Fibroblasts. J Inflamm Res 2022; 15:1501-1519. [PMID: 35261546 PMCID: PMC8898189 DOI: 10.2147/jir.s349216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/20/2022] [Indexed: 12/13/2022] Open
Affiliation(s)
- Natalia Kordulewska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Olsztyn, Poland
- Correspondence: Natalia Kordulewska, Tel + 48 89 523 37 63, Fax + 48 89 535 20 15, Email
| | - Justyna Topa
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, Medical University of Gdańsk, Gdańsk, Poland
| | - Anna Cieślińska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Olsztyn, Poland
| | - Beata Jarmołowska
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, Olsztyn, Poland
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Ye Y, Wang P, Zhou F. miR-489-3p inhibits TLR4/NF-κB signaling to prevent inflammation in psoriasis. Exp Ther Med 2021; 22:744. [PMID: 34055060 PMCID: PMC8138277 DOI: 10.3892/etm.2021.10176] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 03/08/2021] [Indexed: 02/07/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease whose etiology has not yet been determined. MicroRNAs (miRs) regulate the early stages of psoriasis and are targets for therapeutic intervention. The present study aimed to investigate the functional role of miR-489-3p in psoriasis. The present study first assessed the expression levels of miR-489-3p and Toll-like receptor (TLR)4 mRNA using reverse transcription-quantitative PCR, and also detected the protein expression levels of TLR4 and NF-κB via western blot analysis. TargetScan and miRDB target gene prediction tools were used to confirm the regulation of Toll-like receptor (TLR)4 by miR-489-3p. Moreover, a Cell Counting Kit (CCK)-8 assay was conducted to evaluate cell viability, while cell cycle and colony formation assays were performed to evaluate cell proliferation. Human keratinocytes (HaCaT) were co-transfected with TLR4-small interfering RNA and miR-489-3p-inhibitor plasmids, and analysis of cell proliferation and inflammatory cytokine secretion was performed using CCK-8 assay and ELISA. It was found that miR-489-3p expression was downregulated in patients with psoriasis. Bioinformatics analysis identified that TLR4 was a direct target of miR-489-3p. This was confirmed via luciferase reporter assays in HaCaT cells. The overexpression of miR-489-3p inhibited the TLR4/NF-κB signaling pathway and reduced cell proliferation. TLR4 silencing alleviated the effects of miR-489-3p, and enhanced cell proliferation and inflammatory cytokine secretion. Taken together, these data suggested that miR-489-3p may be a key effector of psoriasis, which promotes inflammatory responses by direct targeting of TLR4. miR-489-3p therefore represents a promising prognostic biomarker and therapeutic target for psoriasis treatment.
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Affiliation(s)
- Yujian Ye
- Department of Dermatology, The Third People's Hospital of Hangzhou, Hangzhou, Zhejiang 310009, P.R. China
| | - Ping Wang
- Department of Dermatology, The Third People's Hospital of Hangzhou, Hangzhou, Zhejiang 310009, P.R. China
| | - Fangmei Zhou
- College of Medical Technology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
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Gao Y, Sun W, Cha X, Wang H. 'Psoriasis 1' reduces T‑lymphocyte‑mediated inflammation in patients with psoriasis by inhibiting vitamin D receptor‑mediated STAT4 inactivation. Int J Mol Med 2020; 46:1538-1550. [PMID: 32945358 PMCID: PMC7447312 DOI: 10.3892/ijmm.2020.4695] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 06/15/2020] [Indexed: 12/25/2022] Open
Abstract
Psoriasis is an immune-mediated dermatosis characterized by T-lymphocyte-mediated epidermal hyperplasia, for which there are currently no effective clinical treatments. 'Psoriasis 1' is a Chinese herbal medicine formulation that has been recently used extensively in China for treating patients with psoriasis. However, the molecular mechanism of action of this potent formulation has not yet been fully elucidated. In the present study, the effects of 'Psoriasis 1' on T ymphocytes in patients with psoriasis were investigated and the underlying molecular mechanism was discussed. Blood samples were collected from 40 patients with psoriasis. ELISA was employed to assess the levels of tumour necrosis factor-α, interferon-γ, interleukin (IL)-2, IL-6, transforming growth factor-β, IL-4, IL-12, IL-23 and vitamin D (VD). Western blot and quantitative PCR analyses were used to investigate the expression levels of VD receptor (VDR) and signal transducer and activator of transcription (STAT)4 in T lymphocytes. 'Psoriasis 1' was observed to significantly increase CD4+ T cells. It also notably upregulated the mRNA and protein expression of VDR, and downregulated the mRNA and protein expression of STAT4. Moreover, the suppression of VDR was found to aggravate the inflammatory response, which was reversed by 'Psoriasis 1.' Thus, this formulation reportedly decreased the inflammation mediated by T lymphocytes in patients with psoriasis through inhibiting VDR-mediated STAT4 inactivation.
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Affiliation(s)
- Yang Gao
- Division of Rheumatology, Guang An Men Hospital, China Academy of Chinese Medical Science, Beijing 100053, P.R. China
| | - Wen Sun
- Department of Dermatology, The First People's Hospital of Jingmen, Jingmen, Hubei 448000, P.R. China
| | - Xushan Cha
- Department of Dermatology, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Hailong Wang
- Division of Rheumatology, Guang An Men Hospital, China Academy of Chinese Medical Science, Beijing 100053, P.R. China
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15
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Investigation on the Mechanism of Qubi Formula in Treating Psoriasis Based on Network Pharmacology. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:4683254. [PMID: 32655662 PMCID: PMC7327573 DOI: 10.1155/2020/4683254] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/18/2020] [Accepted: 05/23/2020] [Indexed: 02/07/2023]
Abstract
Objective To elucidate the pharmacological mechanisms of Qubi Formula (QBF), a traditional Chinese medicine (TCM) formula which has been demonstrated as an effective therapy for psoriasis in China. Methods The Traditional Chinese Medicine Systems Pharmacology (TCMSP) database, BATMAN-TCM database, and literature search were used to excavate the pharmacologically active ingredients of QBF and to predict the potential targets. Psoriasis-related targets were obtained from Therapeutic Target Database (TTD), DrugBank database (DBD), MalaCards database, and DisGeNET database. Then, we established the network concerning the interactions of potential targets of QBF with well-known psoriasis-related targets by using protein-protein interaction (PPI) data in String database. Afterwards, topological parameters (including DNMC, Degree, Closeness, and Betweenness) were calculated to excavate the core targets of Qubi Formula in treating psoriasis (main targets in the PPI network). Cytoscape was used to construct the ingredients-targets core network for Qubi Formula in treating psoriasis, and ClueGO was used to perform GO-BP and KEGG pathway enrichment analysis on these core targets. Results The ingredient-target-disease core network of QBF in treating psoriasis was screened to contain 175 active ingredients, which corresponded to 27 core targets. Additionally, enrichment analysis suggested that targets of QBF in treating psoriasis were mainly clustered into multiple biological processes (associated with nuclear translocation of proteins, cellular response to multiple stimuli (immunoinflammatory factors, oxidative stress, and nutrient substance), lymphocyte activation, regulation of cyclase activity, cell-cell adhesion, and cell death) and related pathways (VEGF, JAK-STAT, TLRs, NF-κB, and lymphocyte differentiation-related pathways), indicating the underlying mechanisms of QBF on psoriasis. Conclusion In this work, we have successfully illuminated that Qubi Formula could relieve a wide variety of pathological factors (such as inflammatory infiltration and abnormal angiogenesis) of psoriasis in a "multicompound, multitarget, and multipathway" manner by using network pharmacology. Moreover, our present outcomes might shed light on the further clinical application of QBF on psoriasis treatment.
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16
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Wu X, Deng X, Wang J, Li Q. Baicalin Inhibits Cell Proliferation and Inflammatory Cytokines Induced by Tumor Necrosis Factor α (TNF-α) in Human Immortalized Keratinocytes (HaCaT) Human Keratinocytes by Inhibiting the STAT3/Nuclear Factor kappa B (NF-κB) Signaling Pathway. Med Sci Monit 2020; 26:e919392. [PMID: 32321906 PMCID: PMC7193247 DOI: 10.12659/msm.919392] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Background Baicalin is a flavone isolated from the root of Scutellaria baicalensis and is used in traditional Chinese medicine. Psoriasis is a persistent and recurrent chronic inflammatory skin disease that is characterized by inflammation and increased proliferation of keratinocytes. This study aimed to investigate the effects of baicalin on HaCaT immortalized human keratinocytes in vitro and the molecular mechanisms involved. Material/Methods HaCaT keratinocytes were cultured in increasing concentrations of baicalin at 6.25 μM, 12.5 μM, and 25 μM. The in vitro model of psoriasis was established using HaCaT cells treated with tumor necrosis factor-α (TNF-α). The MTT assay was used to asses cell viability and apoptosis. Western blot was used to measure the expression of Bcl-2, Bax, pro-caspase-3, and cleaved caspase-3, and enzyme-linked immunosorbent assay (ELISA) was performed to detect inflammatory cytokines. Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to detect the levels of STAT3 and p65 mRNA. Results Baicalin reduced cell viability and induced apoptosis of HaCaT human keratinocytes in a dose-dependent manner. Increased cell viability and the expression of inflammatory cytokines by HaCaT cells induced by TNF-α were significantly inhibited by baicalin. Baicalin significantly inhibited the activation of the STAT3/NF-κB pathway in HaCaT cells stimulated by TNF-α. Conclusions Baicalin inhibited the proliferation and expression of inflammatory cytokines in HaCaT immortalized human keratinocytes in vitro through the inhibition of the STAT3/NF-κB signaling pathway.
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Affiliation(s)
- Xianwei Wu
- Department of Dermatology, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
| | - Xiue Deng
- Department of Dermatology, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
| | - Jiandi Wang
- Department of Dermatology, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
| | - Qin Li
- Department of Dermatology, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
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Pan W, Xu X, Wang Y, Song X. Interleukin-35 reduces inflammation in acute lung injury through inhibiting TLR4/NF-κB signaling pathways. Exp Ther Med 2020; 19:1695-1700. [PMID: 32104222 PMCID: PMC7027134 DOI: 10.3892/etm.2020.8407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 09/20/2019] [Indexed: 12/22/2022] Open
Abstract
Acute lung injury (ALI) in children is a complex disease that is accompanied by an inflammatory response. The pathogenesis of ALI in children is not yet well understood. Mice with ALI exhibit inflammation of the lungs and decreased expression of interleukin (IL)-35. To investigate whether the function of IL-35 affects lipopolysaccharide (LPS)-induced ALI, IL-35 was overexpressed in cells. Enzyme-linked immunosorbent assays indicated decreased levels of IL-6 and tumor necrosis factor-α in LPS-induced and agomir-IL-35-treated murine RAW264.7 macrophages. Finally, toll-like receptor 4 (TLR4)/NF-κB signaling pathways were analyzed. The expression of TLR4, NF-κB p65 and NF-κB p50 were decreased, as was the degradation of NF-κB inhibitor-α, in LPS-induced and agomir-IL-35-treated murine RAW264.7 macrophages. The results of the present study demonstrated that IL-35 may exhibit a protective role in ALI by modulating the TLR4/NF-κB signaling pathways.
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Affiliation(s)
- Wei Pan
- Department of Pediatrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Xiaoheng Xu
- Department of Pediatrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Yan Wang
- Experimental Center, Jilin Police College, Changchun, Jilin 130117, P.R. China
| | - Xingyu Song
- Department of Pediatrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
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