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Hoa VB, Park SH, Ha DH, Son JH, Lee KH, Park WS, Yoo JY, Bae IS, Kim HW, Kang HB, Lee SM, Ham JS. Daily Supplementation with Bifidobacterium longum KACC91563 Alleviates Allergic Contact Dermatitis in an Animal Model. Foods 2024; 13:2190. [PMID: 39063274 PMCID: PMC11275651 DOI: 10.3390/foods13142190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/08/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Allergic contact dermatitis (ACD) is the most common chronic inflammatory skin disease (or immune-mediated disease), causing disruption to our psychological condition and life quality. In this study, the therapeutic properties of probiotic Bifidobacterium longum (B. longum) was investigated by using an ACD-induced animal model. For ACD induction, BALB/c mice ear and dorsal skin were sensitized with 240 µL of 1% (w/v) 2,4-dinitrochlorobenzene (DNCB) twice (3-day intervals). After a week of the first induction, the mice were re-sensitized by painting on their dorsal skin and ear with 0.4% (w/v) DNCB for a further three times (once per week). Before the ACD induction of 2 weeks and throughout the trial period, the BALB/c mice were supplemented daily with 1 mL of 1.0 × 109 CFU or 5.0 × 109 CFU B. longum using an intragastric gavage method. The ACD-induced mice without B. longum supplementation were used as a control. Results show that B. longum supplementation significantly alleviated ACD symptoms (e.g., ear swelling, epidermal damage) and immune response (e.g., reduced immune cell recruitment, serum IgE level, and cytokine production). The therapeutic efficiency of B. longum increased as the supplementation dose increased. Thus, daily supplementation with 5.0 × 109 CFU probiotic B. longum could be an effective method for the prevention and treatment of ACD.
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Affiliation(s)
- Van-Ba Hoa
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
| | - So-Hyun Park
- College of Veterinary Medicine, Chungbuk National University, Cheongju-si 28644, Republic of Korea
| | - Do-Hyun Ha
- Division of Biotechnology, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Je-Hee Son
- Division of Biotechnology, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Kil-Ho Lee
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
| | - Won-Seo Park
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
| | - Ja-Yeon Yoo
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
| | - In-Seon Bae
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
| | - Hyoun-Wook Kim
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
| | - Han-Byul Kang
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
| | - Sang-Myeong Lee
- College of Veterinary Medicine, Chungbuk National University, Cheongju-si 28644, Republic of Korea
| | - Jun-Sang Ham
- Animal Products Utilization Division, National Institute of Animal Science, Rural Development Administration (RDA), Wanju-gun 55365, Republic of Korea
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Rasool M, Srikanth M, Rithvik A. 3,3'-Diindolylmethane inhibits Th17 cell differentiation via impairing IRF-7-mediated plasmacytoid dendritic cell activation in imiquimod-induced psoriasis mice. In Vitro Cell Dev Biol Anim 2024; 60:678-688. [PMID: 38602626 DOI: 10.1007/s11626-024-00901-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/07/2024] [Indexed: 04/12/2024]
Abstract
Psoriasis is a paradigmatic condition characterised by a heightened autoimmune response and chronic inflammation. However, the exact nature and the pathological causes behind it are still unknown. Growing evidence suggest dysregulated cytokine network as a result of over-activated T cells and plasmacytoid dendritic cells (pDCs) as the critical drivers in the development of psoriasis. In the present study, we aimed to investigate the therapeutic efficacy of 3,3'-diindolylmethane (DIM) on pDC activation and Th17 cell development in imiquimod (IMQ)-induced psoriasis mice. Our in vitro research investigated the IRF-7 signalling in pDCs that explained the reduced expression of the transcription factor IRF-7 responsible for pDC activation as a result of DIM treatment. Concurrently, DIM treatment decreased the release of Th17 cell polarising cytokines (IFN-α, IL-23, and IL-6) by pDCs which validated a reduction in differentiated pathogenic Th17 cell population and associated cytokine IL-17A in IMQ-induced psoriatic mice. Thus, our recent findings provide therapeutic evidence in targeting the early potential contributors for psoriasis treatment by preventing IRF-7-mediated pDC activation and Th17 cell development in IMQ-induced psoriasis mice.
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Affiliation(s)
- Mahaboobkhan Rasool
- SMV 240, Immunopathology Lab, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632 014, Tamil Nadu, India.
| | - Manupati Srikanth
- SMV 240, Immunopathology Lab, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632 014, Tamil Nadu, India
| | - Arulkumaran Rithvik
- SMV 240, Immunopathology Lab, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632 014, Tamil Nadu, India
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Locust bean gum-based hydrogel containing nanocapsules for 3,3′-diindolylmethane delivery in skin inflammatory conditions. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhou X, Bao WA, Zhu X, Lin J, Fan JF, Yang Y, Du XH, Wang YZ. 3,3'-Diindolylmethane attenuates inflammation and fibrosis in radiation-induced lung injury by regulating NF-κB/TGF-β/Smad signaling pathways. Exp Lung Res 2022; 48:103-113. [PMID: 35594367 DOI: 10.1080/01902148.2022.2052208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE This study aims to investigate the protective effect of 3,3'-diindolylmethane (DIM) on the radiation-induced lung injury (RILI) model and to explore its possible mechanism. Methods: A mouse model of RILI was established by thoracic irradiation, and dexamethasone was used as a positive drug to investigate the effect of DIM on RILI mice. Lung histopathology was analyzed by HE staining and Masson staining. Then the levels of inflammatory cytokines (TGF-β, TNF-α, IL-1β, and IL-6), inflammatory cell counts, and activity of MPO were detected. The expression of TGFβ1/Smad signaling pathway-related proteins was determined by immunohistochemistry. qPCR was used to analyze the mRNA expression levels of inflammatory factors, α‑SMA and COL1A1. The expression of COX-2, NF-κB, IκBα, PI3K, and Akt proteins was assessed by Western blot. Results: Histopathological staining of lung tissues showed that DIM administration alleviated the pulmonary inflammation and fibrosis caused by RILI. Moreover, the content of inflammatory factors such as IL-1β and IL-6, the expression of NF-κB pathway-related proteins, and the counts of inflammatory cells were inhibited in lung tissue, indicating that DIM can inhibit the NF-κB pathway to reduce inflammation. In addition, DIM could down-regulate the mRNA levels of α-SMA, COL1A1, and downregulate TGFβ1, Smad3, and p-Smad2/3 in lung tissues. Conclusion: Our study confirms that DIM has the potential to treat RILI in vivo by inhibiting fibrotic and inflammatory responses in lung tissue through the TGFβ/Smad and NF-κB dual pathways, respectively.
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Affiliation(s)
- Xia Zhou
- Department of Radiation Therapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang Province, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Wu-An Bao
- Department of Radiation Therapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang Province, China
| | - Xiang Zhu
- Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Juan Lin
- Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Ju-Fen Fan
- Department of Radiation Therapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang Province, China
| | - Yang Yang
- Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Xiang-Hui Du
- Department of Radiation Therapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang Province, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
| | - Yue-Zhen Wang
- Department of Radiation Therapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang Province, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
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Srikanth M, Rasool M. 3, 3'- diindolylmethane hinders IL-17A/IL-17RA interaction and mitigates imiquimod-induced psoriasiform in mice. Int Immunopharmacol 2022; 109:108795. [PMID: 35487087 DOI: 10.1016/j.intimp.2022.108795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 11/25/2022]
Abstract
Psoriasis is a highly inflammatory autoimmune-mediated skin disease. The strongest evidence has pointed to the influential role of interleukin (IL) -17A in the aberrant pathology of psoriasis. Henceforth, targeting the IL-17A cytokine is of prime importance in controlling the disease severity of psoriasis. Reportedly, 3, 3'- diindolylmethane (DIM) is a phytochemical that alleviated acute atopic dermatitis. Howbeit, the therapeutic intervention of DIM against IL-17A/IL-17RA interaction and its signaling mediated pathogenesis in psoriasis remains unexplored. In the current report, we decoded the molecular basis of DIM in psoriasis. Docking analysis has reported that DIM identified an IL-17A binding region in the functional fibronectin-III-like domain of IL-17RA and abrogated IL-17A/IL-17RA interaction. In-vitro experiments demonstrated that DIM impeded IL-17A mediated hyper-proliferative phenotype of psoriatic-like keratinocytes. Furthermore, DIM abated the catabolic effects of IL-17A stimulated expression of pathogenic mediators like HMGB-1, Cyr-61, CCL-20, and VEGF via blunted activation of JAK/STAT pathway in psoriatic like keratinocytes. Profoundly, DIM restricted the reprogramming of psoriatic-like keratinocytes to overexpress IL-17RA in concert with IL-17A stimulation. In line with in-vitro studies, DIM also ameliorated skin lesions and epidermal hyperplasia in an imiquimod-induced mice model of psoriasis. Additionally, DIM also reduced STAT-3 phosphorylation and associated expression of Cyr-61, CCL-20, and VEGF in psoriatic mice. However, if DIM has a direct effect on STAT-3 inhibition or it negatively regulates STAT-3 function via blockade of IL-17A/IL-17RA interaction needs to be investigated in the future. Conclusively, our studies demonstrated that the blockade of IL-17A/IL-17RA interaction is a novel therapeutic perspective of DIM against the progression of psoriasis disease.
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Affiliation(s)
- Manupati Srikanth
- Immunopathology Lab, School of BioSciences and Technology, Vellore Institute of Technology (VIT), Vellore - 632 014, Tamilnadu, India
| | - Mahaboobkhan Rasool
- Immunopathology Lab, School of BioSciences and Technology, Vellore Institute of Technology (VIT), Vellore - 632 014, Tamilnadu, India.
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Gil TY, Kang SC, Jin BR, An HJ. Euphorbia hirta Leaf Ethanol Extract Suppresses TNF-α/IFN-γ-Induced Inflammatory Response via Down-Regulating JNK or STAT1/3 Pathways in Human Keratinocytes. Life (Basel) 2022; 12:life12040589. [PMID: 35455080 PMCID: PMC9029983 DOI: 10.3390/life12040589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 11/25/2022] Open
Abstract
Skin inflammation may cause allergic diseases such as allergic rhinitis, asthma, and atopic dermatitis. Euphorbia hirta (E. hirta) is a member of the Euphorbiaceae family and is well-known for its anti-asthma effects. E. hirta has traditionally been used to treat respiratory ailments, dysentery, jaundice, and digestive problems. However, its effects on skin inflammation remain unclear. Here, we determined the effects of 70% ethanol extract of E. hirta leaves (ELE) in vitro using human keratinocyte HaCaT cells, which constitute most epidermal skin cells. We determined the inhibitory effects of ELE on the inflammation caused by tumor necrosis factor (TNF)-α/interferon (IFN)-γ in keratinocytes using ELISA, immunoblotting, and qRT-PCR assay. ELE was found to reduce the production and mRNA expression of pro-inflammatory cytokines such as TNF-α or interleukin-6 and the expression of various proteins, including signal transducers, activators of transcription 1/3, and mitogen-activated protein kinase. Expression levels of these proteins were found to be upregulated in the TNF-α/IFN-γ-stimulated condition and downregulated by ELE treatment. These results indicate that ELE protects HaCaT cells against TNF-α/IFN-γ-induced skin inflammation.
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Fernández-Gallego N, Sánchez-Madrid F, Cibrian D. Role of AHR Ligands in Skin Homeostasis and Cutaneous Inflammation. Cells 2021; 10:cells10113176. [PMID: 34831399 PMCID: PMC8622815 DOI: 10.3390/cells10113176] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/09/2021] [Accepted: 11/12/2021] [Indexed: 02/07/2023] Open
Abstract
Aryl hydrocarbon receptor (AHR) is an important regulator of skin barrier function. It also controls immune-mediated skin responses. The AHR modulates various physiological functions by acting as a sensor that mediates environment–cell interactions, particularly during immune and inflammatory responses. Diverse experimental systems have been used to assess the AHR’s role in skin inflammation, including in vitro assays of keratinocyte stimulation and murine models of psoriasis and atopic dermatitis. Similar approaches have addressed the role of AHR ligands, e.g., TCDD, FICZ, and microbiota-derived metabolites, in skin homeostasis and pathology. Tapinarof is a novel AHR-modulating agent that inhibits skin inflammation and enhances skin barrier function. The topical application of tapinarof is being evaluated in clinical trials to treat psoriasis and atopic dermatitis. In the present review, we summarize the effects of natural and synthetic AHR ligands in keratinocytes and inflammatory cells, and their relevance in normal skin homeostasis and cutaneous inflammatory diseases.
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Affiliation(s)
- Nieves Fernández-Gallego
- Immunology Service, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa (IIS-IP), 28006 Madrid, Spain;
- Vascular Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
| | - Francisco Sánchez-Madrid
- Immunology Service, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa (IIS-IP), 28006 Madrid, Spain;
- Vascular Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (F.S.-M.); (D.C.)
| | - Danay Cibrian
- Immunology Service, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa (IIS-IP), 28006 Madrid, Spain;
- Vascular Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (F.S.-M.); (D.C.)
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