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Chen X, Deng G, Chen K, Chen Y, Ye W, Sun P. Targeting the NLRP3 inflammasome in psoriasis. Int J Dermatol 2024; 63:844-851. [PMID: 38345734 DOI: 10.1111/ijd.17073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 07/05/2024]
Abstract
The NLRP3 inflammasome, a complex consisting of the nucleotide-binding oligomerization domain, leucine-rich repeat, and pyrin domain-containing protein 3, has emerged as a critical mediator of pathological inflammation and a significant therapeutic target for various inflammatory diseases. Psoriasis, a chronic inflammatory skin condition without a definitive cure, has shown promising results in animal models through the inhibition of the NLRP3 inflammasome. This review aims to explore the development of the NLRP3 inflammasome in psoriasis and the molecular mechanisms responsible for its inhibition by natural products and small molecules currently being developed for psoriasis treatment. Furthermore, we are examining clinical trials using agents that block the NLRP3 pathway for the treatment of psoriasis. This study is timely to provide a new perspective on managing psoriasis.
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Affiliation(s)
- Xiuhui Chen
- Key Laboratory of Precision Pharmacy and Pharmaceutical Basic Research, Dongguan, China
- Department of Pharmacy, Dongguan Eighth People's Hospital, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, China
| | - Guoliang Deng
- Key Laboratory of Precision Pharmacy and Pharmaceutical Basic Research, Dongguan, China
- Department of Pharmacy, Dongguan Eighth People's Hospital, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, China
| | - Kaifeng Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yanhong Chen
- Department of Pharmacy, Baoan Central Hospital of Shenzhen, Shenzhen, China
| | - Weijun Ye
- Key Laboratory of Precision Pharmacy and Pharmaceutical Basic Research, Dongguan, China
- Department of Pharmacy, Dongguan Eighth People's Hospital, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, China
| | - Ping Sun
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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2
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Markey GE, Ryan S, Furuta GT, Menard-Katcher C, McNamee EN, Masterson JC. Hypoxia-inducible microRNA-155 negatively regulates epithelial barrier in eosinophilic esophagitis by suppressing tight junction claudin-7. FASEB J 2024; 38:e23358. [PMID: 38050671 PMCID: PMC10699209 DOI: 10.1096/fj.202301934r] [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: 10/05/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 12/06/2023]
Abstract
MicroRNA (miRNA)-mediated mRNA regulation directs many homeostatic and pathological processes, but how miRNAs coordinate aberrant esophageal inflammation during eosinophilic esophagitis (EoE) is poorly understood. Here, we report a deregulatory axis where microRNA-155 (miR-155) regulates epithelial barrier dysfunction by selectively constraining tight junction CLDN7 (claudin-7). MiR-155 is elevated in the esophageal epithelium of biopsies from patients with active EoE and in cell culture models. MiR-155 localization using in situ hybridization (ISH) in patient biopsies and intra-epithelial compartmentalization of miR-155 show expression predominantly within the basal epithelia. Epithelial miR-155 activity was evident through diminished target gene expression in 3D organotypic cultures, particularly in relatively undifferentiated basal cell states. Mechanistically, generation of a novel cell line with enhanced epithelial miR-155 stable overexpression induced a functionally deficient epithelial barrier in 3D air-liquid interface epithelial cultures measured by transepithelial electrical resistance (TEER). Histological assessment of 3D esophageal organoid cultures overexpressing miR-155 showed notable dilated intra-epithelial spaces. Unbiased RNA-sequencing analysis and immunofluorescence determined a defect in epithelial barrier tight junctions and revealed a selective reduction in the expression of critical esophageal tight junction molecule, claudin-7. Together, our data reveal a previously unappreciated role for miR-155 in mediating epithelial barrier dysfunction in esophageal inflammation.
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Affiliation(s)
- Gary E Markey
- Allergy, Inflammation & Remodelling Research Laboratory, Kathleen Lonsdale Institute for Human Health Research, Department of Biology, National University of Ireland Maynooth, Co. Kildare, Ireland
| | - Sinéad Ryan
- Allergy, Inflammation & Remodelling Research Laboratory, Kathleen Lonsdale Institute for Human Health Research, Department of Biology, National University of Ireland Maynooth, Co. Kildare, Ireland
| | - Glenn T Furuta
- Gastrointestinal Eosinophilic Diseases Program, Digestive Health Institute, Children’s Hospital Colorado, Department of Pediatrics, University of Colorado School of Medicine, CO, USA
| | - Calies Menard-Katcher
- Gastrointestinal Eosinophilic Diseases Program, Digestive Health Institute, Children’s Hospital Colorado, Department of Pediatrics, University of Colorado School of Medicine, CO, USA
| | - Eoin N McNamee
- Mucosal Immunology Research Laboratory, Kathleen Lonsdale Institute for Human Health Research, Department of Biology, National University of Ireland Maynooth, Co. Kildare, Ireland
| | - Joanne C Masterson
- Allergy, Inflammation & Remodelling Research Laboratory, Kathleen Lonsdale Institute for Human Health Research, Department of Biology, National University of Ireland Maynooth, Co. Kildare, Ireland
- Gastrointestinal Eosinophilic Diseases Program, Digestive Health Institute, Children’s Hospital Colorado, Department of Pediatrics, University of Colorado School of Medicine, CO, USA
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3
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Alsadi N, Yasavoli-Sharahi H, Mueller R, Cuenin C, Chung F, Herceg Z, Matar C. Protective Mechanisms of Polyphenol-Enriched Blueberry Preparation in Preventing Inflammation in the Skin against UVB-Induced Damage in an Animal Model. Antioxidants (Basel) 2023; 13:25. [PMID: 38275645 PMCID: PMC10812677 DOI: 10.3390/antiox13010025] [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: 11/07/2023] [Revised: 12/08/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
UVB significantly impacts the occurrence of cutaneous disorders, ranging from inflammatory to neoplastic diseases. Polyphenols derived from plants have been found to exhibit photoprotective effects against various factors that contribute to skin cancer. During the fermentation of the polyphenol-enriched blueberry preparation (PEBP), small oligomers of polyphenols were released, thus enhancing their photoprotective effects. This study aimed to investigate the protective effects of PEBP on UVB-induced skin inflammation. Topical preparations of polyphenols were applied to the skin of dorsally shaved mice. Mice were subsequently exposed to UVB and were sacrificed 90 min after UVB exposure. This study revealed that pretreatment with PEBP significantly inhibited UVB-induced recruitment of mast and neutrophil cells and prevented the loss of skin thickness. Furthermore, the findings show that PEBP treatment resulted in the downregulation of miR-210, 146a, and 155 and the upregulation of miR-200c and miR-205 compared to the UVB-irradiated mice. Additionally, PEBP was found to reduce the expression of IL-6, IL-1β, and TNFα, inhibiting COX-2 and increasing IL-10 after UVB exposure. Moreover, DNA methylation analysis indicated that PEBP might potentially reduce the activation of inflammation-related pathways such as MAPK, Wnt, Notch, and PI3K-AKT signaling. Our finding suggests that topical application of PEBP treatment may effectively prevent UVB-induced skin damage by inhibiting inflammation.
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Affiliation(s)
- Nawal Alsadi
- Cellular and Molecular Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (N.A.); (H.Y.-S.)
| | - Hamed Yasavoli-Sharahi
- Cellular and Molecular Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (N.A.); (H.Y.-S.)
| | - Rudolf Mueller
- Pathology and Laboratory Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada;
| | - Cyrille Cuenin
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer (IARC), 25 Av. Tony Garnier, 69007 Lyon, France; (C.C.); (F.C.); (Z.H.)
| | - Felicia Chung
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer (IARC), 25 Av. Tony Garnier, 69007 Lyon, France; (C.C.); (F.C.); (Z.H.)
- Department of Medical Sciences, School of Medical and Life Sciences, Sunway University, Jalan University, Bandar Sunway, Subang Jaya 47500, Malaysia
| | - Zdenko Herceg
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer (IARC), 25 Av. Tony Garnier, 69007 Lyon, France; (C.C.); (F.C.); (Z.H.)
| | - Chantal Matar
- Cellular and Molecular Medicine Department, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada; (N.A.); (H.Y.-S.)
- School of Nutrition, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1H 8M5, Canada
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Xu T, Zhao J, Xiong M. Graphical Learning and Causal Inference for Drug Repurposing. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.07.29.23293346. [PMID: 37577650 PMCID: PMC10418581 DOI: 10.1101/2023.07.29.23293346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Gene expression profiles that connect drug perturbations, disease gene expression signatures, and clinical data are important for discovering potential drug repurposing indications. However, the current approach to gene expression reversal has several limitations. First, most methods focus on validating the reversal expression of individual genes. Second, there is a lack of causal approaches for identifying drug repurposing candidates. Third, few methods for passing and summarizing information on a graph have been used for drug repurposing analysis, with classical network propagation and gene set enrichment analysis being the most common. Fourth, there is a lack of graph-valued association analysis, with current approaches using real-valued association analysis one gene at a time to reverse abnormal gene expressions to normal gene expressions. To overcome these limitations, we propose a novel causal inference and graph neural network (GNN)-based framework for identifying drug repurposing candidates. We formulated a causal network as a continuous constrained optimization problem and developed a new algorithm for reconstructing large-scale causal networks of up to 1,000 nodes. We conducted large-scale simulations that demonstrated good false positive and false negative rates. To aggregate and summarize information on both nodes and structure from the spatial domain of the causal network, we used directed acyclic graph neural networks (DAGNN). We also developed a new method for graph regression in which both dependent and independent variables are graphs. We used graph regression to measure the degree to which drugs reverse altered gene expressions of disease to normal levels and to select potential drug repurposing candidates. To illustrate the application of our proposed methods for drug repurposing, we applied them to phase I and II L1000 connectivity map perturbational profiles from the Broad Institute LINCS, which consist of gene-expression profiles for thousands of perturbagens at a variety of time points, doses, and cell lines, as well as disease gene expression data under-expressed and over-expressed in response to SARS-CoV-2.
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Affiliation(s)
- Tao Xu
- Department of Epidemiology, University of Florida, Gainesville, FL 32611, USA
| | - Jinying Zhao
- Department of Epidemiology, University of Florida, Gainesville, FL 32611, USA
| | - Momiao Xiong
- Department of Biostatistics and Data Science, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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5
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Roy T, Boateng ST, Uddin MB, Banang-Mbeumi S, Yadav RK, Bock CR, Folahan JT, Siwe-Noundou X, Walker AL, King JA, Buerger C, Huang S, Chamcheu JC. The PI3K-Akt-mTOR and Associated Signaling Pathways as Molecular Drivers of Immune-Mediated Inflammatory Skin Diseases: Update on Therapeutic Strategy Using Natural and Synthetic Compounds. Cells 2023; 12:1671. [PMID: 37371141 PMCID: PMC10297376 DOI: 10.3390/cells12121671] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
The dysregulated phosphatidylinositol-3-kinase (PI3K)-Akt-mammalian target of rapamycin (mTOR) signaling pathway has been implicated in various immune-mediated inflammatory and hyperproliferative dermatoses such as acne, atopic dermatitis, alopecia, psoriasis, wounds, and vitiligo, and is associated with poor treatment outcomes. Improved comprehension of the consequences of the dysregulated PI3K/Akt/mTOR pathway in patients with inflammatory dermatoses has resulted in the development of novel therapeutic approaches. Nonetheless, more studies are necessary to validate the regulatory role of this pathway and to create more effective preventive and treatment methods for a wide range of inflammatory skin diseases. Several studies have revealed that certain natural products and synthetic compounds can obstruct the expression/activity of PI3K/Akt/mTOR, underscoring their potential in managing common and persistent skin inflammatory disorders. This review summarizes recent advances in understanding the role of the activated PI3K/Akt/mTOR pathway and associated components in immune-mediated inflammatory dermatoses and discusses the potential of bioactive natural products, synthetic scaffolds, and biologic agents in their prevention and treatment. However, further research is necessary to validate the regulatory role of this pathway and develop more effective therapies for inflammatory skin disorders.
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Affiliation(s)
- Tithi Roy
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
| | - Samuel T. Boateng
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
| | - Mohammad B. Uddin
- Department of Toxicology and Cancer Biology, Center for Research on Environmental Diseases, College of Medicine, University of Kentucky, Lexington, KY 40536, USA;
| | - Sergette Banang-Mbeumi
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
- Division for Research and Innovation, POHOFI Inc., Madison, WI 53744, USA
- School of Nursing and Allied Health Sciences, Louisiana Delta Community College, Monroe, LA 71203, USA
| | - Rajesh K. Yadav
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
| | - Chelsea R. Bock
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
| | - Joy T. Folahan
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
| | - Xavier Siwe-Noundou
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, P.O. Box 218, Pretoria 0208, South Africa;
| | - Anthony L. Walker
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
| | - Judy A. King
- Department of Pathology and Translational Pathobiology, LSU Health Shreveport, 1501 Kings Highway, Shreveport, LA 71103, USA;
- College of Medicine, Belmont University, 900 Belmont Boulevard, Nashville, TN 37212, USA
| | - Claudia Buerger
- Department of Dermatology, Venerology and Allergology, Clinic of the Goethe University, 60590 Frankfurt am Main, Germany;
| | - Shile Huang
- Department of Biochemistry and Molecular Biology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA 71130, USA;
- Department of Hematology and Oncology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA 71130, USA
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA
| | - Jean Christopher Chamcheu
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71209, USA; (T.R.); (S.T.B.); (S.B.-M.); (R.K.Y.); (C.R.B.); (J.T.F.); (A.L.W.)
- Department of Pathology and Translational Pathobiology, LSU Health Shreveport, 1501 Kings Highway, Shreveport, LA 71103, USA;
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Dopytalska K, Czaplicka A, Szymańska E, Walecka I. The Essential Role of microRNAs in Inflammatory and Autoimmune Skin Diseases-A Review. Int J Mol Sci 2023; 24:ijms24119130. [PMID: 37298095 DOI: 10.3390/ijms24119130] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
The etiopathogenesis of autoimmune skin diseases is complex and still not fully understood. The role of epigenetic factors is emphasized in the development of such diseases. MicroRNAs (miRNAs), a group of non-coding RNAs (ncRNAs-non-coding RNAs), are one of the important post-transcriptional epigenetic factors. miRNAs have a significant role in the regulation of the immune response by participating in the process of the differentiation and activation of B and T lymphocytes, macrophages, and dendritic cells. Recent advances in research on epigenetic factors have provided new insights into the pathogenesis and potential diagnostic and therapeutic targets of many pathologies. Numerous studies revealed a change in the expression of some microRNAs in inflammatory skin disorders, and the regulation of miRNA expression is a promising therapeutic goal. This review presents the state of the art regarding changes in the expression and role of miRNAs in inflammatory and autoimmune skin diseases, including psoriasis, atopic dermatitis, vitiligo, lichen planus, hidradenitis suppurativa, and autoimmune blistering diseases.
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Affiliation(s)
- Klaudia Dopytalska
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
| | - Anna Czaplicka
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
| | - Elżbieta Szymańska
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
| | - Irena Walecka
- Department of Dermatology, Centre of Postgraduate Medical Education, 02-507 Warsaw, Poland
- Department of Dermatology, The National Institute of Medicine of the Ministry of the Interior and Administration, 02-507 Warsaw, Poland
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Khabou B, Fakhfakh R, Tahri S, Bahloul E, Hadj Kacem H, Belmabrouk S, Hachicha H, Sellami K, Turki H, Masmoudi H, Abida O. miRNA implication in the pathogenesis and the outcome of Tunisian endemic pemphigus foliaceous. Exp Dermatol 2023. [PMID: 37114366 DOI: 10.1111/exd.14821] [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: 11/30/2022] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Abstract
Pemphigus foliaceous (PF) is a bullous autoimmune skin disease diagnosed through sera and skin analyses. PF severity is associated with maintained anti-Dsg1 sera levels and its prognosis is unpredictable. MicroRNA (miRNA), dynamic regulators of immune function, have been identified as potential biomarkers for some autoimmune diseases. This study aimed to assess the miRNA expression of miR-17-5p, miR-21-5p, miR-146a-5p, miR-155-5p and miR-338-3p using quantitative real-time PCR in peripheral blood mononuclear cells (PBMC) and lesional skin samples from untreated and treated PF patients (both remittent and chronic) over 3 months. Overall, miRNA expression was significantly higher in PBMC than in biopsy samples. Blood miR-21 expression was increased in untreated patients compared to controls and had a diagnostic value with an AUC of 0.78. After 6 weeks, it decreased significantly, similar to anti-Dsg1 antibodies and the PDAI score. In addition, a positive correlation was observed between cutaneous miR-21 expression and the disease activity score. Conversely, cutaneous expressions of miR-17, miR-146a and miR-155 were significantly higher in treated chronic patients compared to remittent ones. The cutaneous level of miR-155 positively correlated with pemphigus activity, making it a potential predictive marker for patients' clinical stratification with an AUC of 0.86.These findings suggest that blood miR-21 and cutaneous miR-155 can be used as supplemental markers for PF diagnosis and activity, respectively in addition to classical parameters.
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Affiliation(s)
- Boudour Khabou
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Safa Tahri
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Emna Bahloul
- Department of Dermatology, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hassen Hadj Kacem
- Department of Applied Biology College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Research Institute of Science and Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Sabrine Belmabrouk
- Research Institute of Science and Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Hend Hachicha
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Khadija Sellami
- Department of Dermatology, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hamida Turki
- Department of Dermatology, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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8
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Sadoghi B, Koch L, Kalinina P. Anton Luger Dissertationspreise der ÖGDV 2022. J Dtsch Dermatol Ges 2023; 21:321-323. [PMID: 36929555 DOI: 10.1111/ddg.15039_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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9
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Anti-Inflammatory microRNAs for Treating Inflammatory Skin Diseases. Biomolecules 2022; 12:biom12081072. [PMID: 36008966 PMCID: PMC9405611 DOI: 10.3390/biom12081072] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 02/07/2023] Open
Abstract
Skin inflammation occurs due to immune dysregulation because of internal disorders, infections, and allergic reactions. The inflammation of the skin is a major sign of chronic autoimmune inflammatory diseases, such as psoriasis, atopic dermatitis (AD), and lupus erythematosus. Although there are many therapies for treating these cutaneous inflammation diseases, their recurrence rates are high due to incomplete resolution. MicroRNA (miRNA) plays a critical role in skin inflammation by regulating the expression of protein-coding genes at the posttranscriptional level during pathogenesis and homeostasis maintenance. Some miRNAs possess anti-inflammatory features, which are beneficial for mitigating the inflammatory response. miRNAs that are reduced in inflammatory skin diseases can be supplied transiently using miRNA mimics and agomir. miRNA-based therapies that can target multiple genes in a given pathway are potential candidates for the treatment of skin inflammation. This review article offers an overview of the function of miRNA in skin inflammation regulation, with a focus on psoriasis, AD, and cutaneous wounds. Some bioactive molecules can target and modulate miRNAs to achieve the objective of inflammation suppression. This review also reports the anti-inflammatory efficacy of these molecules through modulating miRNA expression. The main limitations of miRNA-based therapies are rapid biodegradation and poor skin and cell penetration. Consideration was given to improving these drawbacks using the approaches of cell-penetrating peptides (CPPs), nanocarriers, exosomes, and low-frequency ultrasound. A formulation design for successful miRNA delivery into skin and target cells is also described in this review. The possible use of miRNAs as biomarkers and therapeutic modalities could open a novel opportunity for the diagnosis and treatment of inflammation-associated skin diseases.
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Lachner J, Derdak S, Mlitz V, Wagner T, Holthaus KB, Ehrlich F, Mildner M, Tschachler E, Eckhart L. An In Vitro Model of Avian Skin Reveals Evolutionarily Conserved Transcriptional Regulation of Epidermal Barrier Formation. J Invest Dermatol 2021; 141:2829-2837. [PMID: 34116064 DOI: 10.1016/j.jid.2021.04.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/29/2021] [Accepted: 04/12/2021] [Indexed: 01/23/2023]
Abstract
The function of the skin as a barrier against a dry environment evolved in a common ancestor of terrestrial vertebrates such as mammals and birds. However, it is unknown which elements of the genetic program of skin barrier formation are evolutionarily ancient and conserved. In this study, we determined the transcriptomes of chicken keratinocytes (KCs) grown in monolayer culture and in an organotypic model of avian skin. The differentiation-associated changes in global gene expression were compared with previously published transcriptome changes of human KCs cultured under equivalent conditions. We found that specific keratins and genes of the epidermal differentiation complex were upregulated during the differentiation of both chicken and human KCs. Likewise, the transcriptional upregulation of genes that control the synthesis and transport of lipids, anti-inflammatory cytokines of the IL-1 family, protease inhibitors, and other regulators of tissue homeostasis was conserved in the KCs of both species. However, some avian KC differentiation-associated transcripts lack homologs in mammals and vice versa, indicating a genetic basis for taxon-specific skin features. The results of this study reveal an evolutionarily ancient program in which dynamic gene transcription controls the metabolism and transport of lipids as well as other core processes during terrestrial skin barrier formation.
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Affiliation(s)
- Julia Lachner
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Sophia Derdak
- Core Facilities, Medical University of Vienna, Vienna, Austria
| | - Veronika Mlitz
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Tanja Wagner
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Karin Brigit Holthaus
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Florian Ehrlich
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Erwin Tschachler
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Leopold Eckhart
- Skin Biology Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria.
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Quah S, Subramanian G, Sampath P. Repurposing Belinostat for Alleviation of Atopic Dermatitis. Dermatol Ther (Heidelb) 2021; 11:655-660. [PMID: 33852133 PMCID: PMC8163942 DOI: 10.1007/s13555-021-00527-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Indexed: 12/31/2022] Open
Abstract
Atopic dermatitis (AD) is a highly prevalent chronic inflammatory skin disease that is characterized by intense pruritus, seriously affecting patients' quality of life. Its pathophysiology, which involves both the adaptive and innate immune responses as well as skin barrier defects, is still poorly understood. We recently identified a microRNA, miR-335, as a key driver of keratinocyte differentiation and cornification, which is essential for the establishment of a healthy skin barrier. However, expression of miR-335 is lost in AD, leading to barrier defect. We further demonstrated how belinostat, a histone deacetylase inhibitor, can effectively restore miR-335 and resolve the barrier defect in a dry skin model. Here, in this commentary, we highlight the role of belinostat in the treatment of AD and discuss the need for more research into crosstalk between epigenetic and non-coding RNA-based regulation, as well as possible therapeutic strategies targeting the epigenome.
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Affiliation(s)
- Shan Quah
- Skin Research Institute of Singapore, Agency for Science Technology and Research (A*STAR), 138648, Singapore, Singapore
| | - Gowtham Subramanian
- Skin Research Institute of Singapore, Agency for Science Technology and Research (A*STAR), 138648, Singapore, Singapore
| | - Prabha Sampath
- Skin Research Institute of Singapore, Agency for Science Technology and Research (A*STAR), 138648, Singapore, Singapore.
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore.
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Lim KM. Skin Epidermis and Barrier Function. Int J Mol Sci 2021; 22:ijms22063035. [PMID: 33809733 PMCID: PMC8002265 DOI: 10.3390/ijms22063035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/12/2021] [Accepted: 03/14/2021] [Indexed: 12/25/2022] Open
Abstract
The skin epidermis is the outermost epithelial tissue that protects the body from the external environment [...].
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Affiliation(s)
- Kyung-Min Lim
- College of Pharmacy, Ewha Womans University, Seodaemungu, Seoul 03760, Korea
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