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López-Posadas R, Bagley DC, Pardo-Pastor C, Ortiz-Zapater E. The epithelium takes the stage in asthma and inflammatory bowel diseases. Front Cell Dev Biol 2024; 12:1258859. [PMID: 38529406 PMCID: PMC10961468 DOI: 10.3389/fcell.2024.1258859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 02/22/2024] [Indexed: 03/27/2024] Open
Abstract
The epithelium is a dynamic barrier and the damage to this epithelial layer governs a variety of complex mechanisms involving not only epithelial cells but all resident tissue constituents, including immune and stroma cells. Traditionally, diseases characterized by a damaged epithelium have been considered "immunological diseases," and research efforts aimed at preventing and treating these diseases have primarily focused on immuno-centric therapeutic strategies, that often fail to halt or reverse the natural progression of the disease. In this review, we intend to focus on specific mechanisms driven by the epithelium that ensure barrier function. We will bring asthma and Inflammatory Bowel Diseases into the spotlight, as we believe that these two diseases serve as pertinent examples of epithelium derived pathologies. Finally, we will argue how targeting the epithelium is emerging as a novel therapeutic strategy that holds promise for addressing these chronic diseases.
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Affiliation(s)
- Rocío López-Posadas
- Department of Medicine 1, University Hospital of Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-Universtiy Eralngen-Nürnberg, Erlangen, Germany
| | - Dustin C. Bagley
- Randall Centre for Cell and Molecular Biophysics, New Hunt’s House, School of Basic and Medical Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, United Kingdom
| | - Carlos Pardo-Pastor
- Randall Centre for Cell and Molecular Biophysics, New Hunt’s House, School of Basic and Medical Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, United Kingdom
| | - Elena Ortiz-Zapater
- Department of Biochemistry and Molecular Biology, Universitat de Valencia, Valencia, Spain
- Instituto Investigación Hospital Clínico-INCLIVA, Valencia, Spain
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2
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Ghaffarinia A, Póliska S, Ayaydin F, Goblos A, Parvaneh S, Manczinger M, Balogh F, Erdei L, Veréb Z, Szabó K, Bata-Csörgő Z, Kemény L. Unraveling Transcriptome Profile, Epigenetic Dynamics, and Morphological Changes in Psoriasis-like Keratinocytes: "Insights into Similarity with Psoriatic Lesional Epidermis". Cells 2023; 12:2825. [PMID: 38132145 PMCID: PMC10741855 DOI: 10.3390/cells12242825] [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: 10/01/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023] Open
Abstract
Keratinocytes are one of the primary cells affected by psoriasis inflammation. Our study aimed to delve deeper into their morphology, transcriptome, and epigenome changes in response to psoriasis-like inflammation. We created a novel cytokine mixture to mimic mild and severe psoriasis-like inflammatory conditions in cultured keratinocytes. Upon induction of inflammation, we observed that the keratinocytes exhibited a mesenchymal-like phenotype, further confirmed by increased VIM mRNA expression and results obtained from confocal microscopy. We performed RNA sequencing to achieve a more global view, revealing 858 and 6987 DEGs in mildly and severely inflamed keratinocytes, respectively. Surprisingly, we found that the transcriptome of mildly inflamed keratinocytes more closely mimicked that of the psoriatic epidermis transcriptome than the severely inflamed keratinocytes. Genes involved in the IL-17 pathway were a major contributor to the similarities of the transcriptomes between mildly inflamed KCs and psoriatic epidermis. Mild and severe inflammation led to the gene regulation of epigenetic modifiers such as HATs, HDACs, DNMTs, and TETs. Immunofluorescence staining revealed distinct 5-hmC patterns in inflamed versus control keratinocytes, and consistently low 5-mC intensity in both groups. However, the global DNA methylation assay detected a tendency of decreased 5-mC levels in inflamed keratinocytes versus controls. This study emphasizes how inflammation severity affects the transcriptomic similarity of keratinocytes to psoriatic epidermis and proves dynamic epigenetic regulation and adaptive morphological changes in inflamed keratinocytes.
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Affiliation(s)
- Ameneh Ghaffarinia
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- Doctoral School of Clinical Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Szilárd Póliska
- Genomic Medicine and Bioinformatics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
| | - Ferhan Ayaydin
- HCEMM-USZ Functional Cell Biology and Immunology, Advanced Core Facility, H-6728 Szeged, Hungary;
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary
| | - Aniko Goblos
- Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, H-6720 Szeged, Hungary; (A.G.); (Z.V.)
| | - Shahram Parvaneh
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Doctoral School of Clinical Medicine, University of Szeged, H-6720 Szeged, Hungary
- Regenerative Medicine and Cellular Pharmacology Laboratory (HECRIN), Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary
| | - Máté Manczinger
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- Systems Immunology Research Group, Institute of Biochemistry, HUN-REN Biological Research Centre, H-6726 Szeged, Hungary
- HCEMM-Systems Immunology Research Group, H-6726 Szeged, Hungary
| | - Fanni Balogh
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Lilla Erdei
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Zoltán Veréb
- Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, H-6720 Szeged, Hungary; (A.G.); (Z.V.)
- Regenerative Medicine and Cellular Pharmacology Laboratory (HECRIN), Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary
| | - Kornélia Szabó
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Zsuzsanna Bata-Csörgő
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Lajos Kemény
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
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3
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Fu J, Zong X, Jin M, Min J, Wang F, Wang Y. Mechanisms and regulation of defensins in host defense. Signal Transduct Target Ther 2023; 8:300. [PMID: 37574471 PMCID: PMC10423725 DOI: 10.1038/s41392-023-01553-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/11/2023] [Accepted: 06/26/2023] [Indexed: 08/15/2023] Open
Abstract
As a family of cationic host defense peptides, defensins are mainly synthesized by Paneth cells, neutrophils, and epithelial cells, contributing to host defense. Their biological functions in innate immunity, as well as their structure and activity relationships, along with their mechanisms of action and therapeutic potential, have been of great interest in recent years. To highlight the key research into the role of defensins in human and animal health, we first describe their research history, structural features, evolution, and antimicrobial mechanisms. Next, we cover the role of defensins in immune homeostasis, chemotaxis, mucosal barrier function, gut microbiota regulation, intestinal development and regulation of cell death. Further, we discuss their clinical relevance and therapeutic potential in various diseases, including infectious disease, inflammatory bowel disease, diabetes and obesity, chronic inflammatory lung disease, periodontitis and cancer. Finally, we summarize the current knowledge regarding the nutrient-dependent regulation of defensins, including fatty acids, amino acids, microelements, plant extracts, and probiotics, while considering the clinical application of such regulation. Together, the review summarizes the various biological functions, mechanism of actions and potential clinical significance of defensins, along with the challenges in developing defensins-based therapy, thus providing crucial insights into their biology and potential clinical utility.
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Affiliation(s)
- Jie Fu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, Hangzhou, Zhejiang Province, China
| | - Xin Zong
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, Hangzhou, Zhejiang Province, China
| | - Mingliang Jin
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, Hangzhou, Zhejiang Province, China
| | - Junxia Min
- The First Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Fudi Wang
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou, China.
- The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China.
| | - Yizhen Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China.
- Key Laboratory of Animal Nutrition and Feed Science in Eastern China, Ministry of Agriculture, Hangzhou, Zhejiang Province, China.
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4
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Su X, Jin M, Xu C, Gao Y, Yang Y, Qi H, Zhang Q, Yang X, Ya W, Zhang Y, Yang R. FABP4 in Paneth cells regulates antimicrobial protein expression to reprogram gut microbiota. Gut Microbes 2022; 14:2139978. [PMID: 36519446 PMCID: PMC9635462 DOI: 10.1080/19490976.2022.2139978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Antimicrobial proteins possess a broad spectrum of bactericidal activity and play an important role in shaping the composition of gut microbiota, which is related to multiple diseases such as metabolic syndrome. However, it is incompletely known for the regulation of defensin expression in the gut Paneth cells. Here, we found that FABP4 in the Paneth cells of gut epithelial cells and organoids can downregulate the expression of defensins. FABP4fl/flpvillinCreT mice were highly resistance to Salmonella Typhimurium (S.T) infection and had increased bactericidal ability to pathogens. The FABP4-mediated downregulation of defensins is through degrading PPARγ after K48 ubiquitination. We also demonstrate that high-fat diet (HFD)-mediated downregulation of defensins is through inducing a robust FABP4 in Paneth cells. Firmicutes/Bacteroidetes (F/B) ratio in FABP4fl/flpvillinCreT mice is lower than control mice, which is opposite to that in mice fed HFD, indicating that FABP4 in the Paneth cells could reprogram gut microbiota. Interestingly, FABP4-mediated downregulation of defensins in Paneth cells not only happens in mice but also in human. A better understanding of the regulation of defensins, especially HFD-mediated downregulation of defensin in Paneth cells will provide insights into factor(s) underlying modern diseases.Abbreviations: FABP4: Fatty acid binding protein 4; S. T: Salmonella Typhimurium; HFD: High-fat diet; Defa: α-defensin; 930 HD5: Human α-defensin 5; HD6: Human α-defensin 6; F/B: Firmicutes/Bacteroidetes; SFB: Segmental filamentous bacteria; AMPs: Antimicrobial peptides; PPARγ: Peroxisome proliferator-activated receptor γ; P-PPAR: Phosphorylated PPAR; Dhx15: DEAD-box helicase 15; 935 EGF: Epidermal growth factor; ENR: Noggin and R-spondin 1; CFU: Colony forming unit; Lyz1: Lysozyme 1; Saa1: Serum amyoid A 1; Pla2g2a: Phospholipase A2, group IIA; MMP-7: Matrix metalloproteinase; AU-PAGE: Acid-urea polyacrylamide gel electrophoresis; PA: Palmitic 940 acid; GPR40: G-protein-coupled receptor; GF: Germ-free; EGF: Epidermal growth factor; LP: Lamina propria; KO: Knock out; WT: Wild-type.
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Affiliation(s)
- Xiaomin Su
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China
| | - Mengli Jin
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Chen Xu
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Yunhuan Gao
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Yazheng Yang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Houbao Qi
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Qianjing Zhang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Xiaorong Yang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Wang Ya
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China
| | - Yuan Zhang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Rongcun Yang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin, China,Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin, China,State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China,CONTACT Rongcun Yang Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin300071, China
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5
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Milad N, Pineault M, Bouffard G, Maranda-Robitaille M, Lechasseur A, Beaulieu MJ, Aubin S, Jensen BAH, Morissette MC. Recombinant human β-defensin 2 delivery improves smoking-associated lung neutrophilia and bacterial exacerbation. Am J Physiol Lung Cell Mol Physiol 2022; 323:L37-L47. [DOI: 10.1152/ajplung.00027.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Treatment of the cigarette smoke-associated lung disease has largely focused on broad-spectrum anti-inflammatory therapies. However, these therapies, such as high-dose inhaled corticosteroids, enhance patient susceptibility to lung infection and exacerbation. Our objective was to assess whether the host-defense peptide, human beta-defensin 2 (hBD-2), can simultaneously reduce pulmonary inflammation in cigarette smoke-exposed mice while maintaining immune competence during bacterial exacerbation. Mice were exposed to cigarette smoke acutely (4 days) or chronically (5 days/week for 7 weeks) and administered hBD-2 intranasally or by gavage. In a separate model of acute exacerbation, chronically exposed mice treated with hBD-2 were infected with non-typeable Haemophilus influenzae prior to sacrifice. In the acute exposure model, cigarette smoke-associated pulmonary neutrophilia was significantly blunted by both local and systemic hBD-2 administration. Similarly, chronically exposed mice administered hBD-2 therapeutically exhibited reduced pulmonary neutrophil infiltration and downregulated pro-inflammatory signaling in the lungs compared to vehicle-treated mice. Finally, in a model of acute bacterial exacerbation, hBD-2 administration effectively limited neutrophil infiltration in the lungs while markedly reducing pulmonary bacterial load. This study shows that hBD-2 treatment can significantly attenuate lung neutrophilia induced by cigarette smoke exposure while preserving immune competence and promoting an appropriate host-defense response to bacterial stimuli.
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Affiliation(s)
- Nadia Milad
- Quebec Heart and Lung Institute, Université Laval, Quebec City, QC, Canada
- Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Marie Pineault
- Quebec Heart and Lung Institute, Université Laval, Quebec City, QC, Canada
- Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Gabrielle Bouffard
- Quebec Heart and Lung Institute, Université Laval, Quebec City, QC, Canada
- Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Michael Maranda-Robitaille
- Quebec Heart and Lung Institute, Université Laval, Quebec City, QC, Canada
- Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Ariane Lechasseur
- Quebec Heart and Lung Institute, Université Laval, Quebec City, QC, Canada
- Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | | | - Sophie Aubin
- Quebec Heart and Lung Institute, Université Laval, Quebec City, QC, Canada
| | - Benjamin A. H. Jensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Mathieu C. Morissette
- Quebec Heart and Lung Institute, Université Laval, Quebec City, QC, Canada
- Department of Medicine, Université Laval, Quebec City, QC, Canada
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6
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Immunomodulatory and Allergenic Properties of Antimicrobial Peptides. Int J Mol Sci 2022; 23:ijms23052499. [PMID: 35269641 PMCID: PMC8910669 DOI: 10.3390/ijms23052499] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/20/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023] Open
Abstract
With the growing problem of the emergence of antibiotic-resistant bacteria, the search for alternative ways to combat bacterial infections is extremely urgent. While analyzing the effect of antimicrobial peptides (AMPs) on immunocompetent cells, their effect on all parts of the immune system, and on humoral and cellular immunity, is revealed. AMPs have direct effects on neutrophils, monocytes, dendritic cells, T-lymphocytes, and mast cells, participating in innate immunity. They act on B-lymphocytes indirectly, enhancing the induction of antigen-specific immunity, which ultimately leads to the activation of adaptive immunity. The adjuvant activity of AMPs in relation to bacterial and viral antigens was the reason for their inclusion in vaccines and made it possible to formulate the concept of a “defensin vaccine” as an innovative basis for constructing vaccines. The immunomodulatory function of AMPs involves their influence on cells in the nearest microenvironment, recruitment and activation of other cells, supporting the response to pathogenic microorganisms and completing the inflammatory process, thus exhibiting a systemic effect. For the successful use of AMPs in medical practice, it is necessary to study their immunomodulatory activity in detail, taking into account their pleiotropy. The degree of maturity of the immune system and microenvironment can contribute to the prevention of complications and increase the effectiveness of therapy, since AMPs can suppress inflammation in some circumstances, but aggravate the response and damage of organism in others. It should also be taken into account that the real functions of one or another AMP depend on the types of total regulatory effects on the target cell, and not only on properties of an individual peptide. A wide spectrum of biological activity, including direct effects on pathogens, inactivation of bacterial toxins and influence on immunocompetent cells, has attracted the attention of researchers, however, the cytostatic activity of AMPs against normal cells, as well as their allergenic properties and low stability to host proteases, are serious limitations for the medical use of AMPs. In this connection, the tasks of searching for compounds that selectively affect the target and development of an appropriate method of application become critically important. The scope of this review is to summarize the current concepts and newest advances in research of the immunomodulatory activity of natural and synthetic AMPs, and to examine the prospects and limitations of their medical use.
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Warner JB, Larsen IS, Hardesty JE, Song YL, Warner DR, McClain CJ, Sun R, Deng Z, Jensen BAH, Kirpich IA. Human Beta Defensin 2 Ameliorated Alcohol-Associated Liver Disease in Mice. Front Physiol 2022; 12:812882. [PMID: 35153819 PMCID: PMC8829467 DOI: 10.3389/fphys.2021.812882] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022] Open
Abstract
Alcohol-associated liver disease (ALD) is a prevalent liver disorder and significant global healthcare burden with limited effective therapeutic options. The gut-liver axis is a critical factor contributing to susceptibility to liver injury due to alcohol consumption. In the current study, we tested whether human beta defensin-2 (hBD-2), a small anti-microbial peptide, attenuates experimental chronic ALD. Male C57Bl/6J mice were fed an ethanol (EtOH)-containing diet for 6 weeks with daily administration of hBD-2 (1.2 mg/kg) by oral gavage during the final week. Two independent cohorts of mice with distinct baseline gut microbiota were used. Oral hBD-2 administration attenuated liver injury in both cohorts as determined by decreased plasma ALT activity. Notably, the degree of hBD-2-mediated reduction of EtOH-associated liver steatosis, hepatocellular death, and inflammation was different between cohorts, suggesting microbiota-specific mechanisms underlying the beneficial effects of hBD-2. Indeed, we observed differential mechanisms of hBD-2 between cohorts, which included an induction of hepatic and small intestinal IL-17A and IL-22, as well as an increase in T regulatory cell abundance in the gut and mesenteric lymph nodes. Lastly, hBD-2 modulated the gut microbiota composition in EtOH-fed mice in both cohorts, with significant decreases in multiple genera including Barnesiella, Parabacteroides, Akkermansia, and Alistipes, as well as altered abundance of several bacteria within the family Ruminococcaceae. Collectively, our results demonstrated a protective effect of hBD-2 in experimental ALD associated with immunomodulation and microbiota alteration. These data suggest that while the beneficial effects of hBD-2 on liver injury are uniform, the specific mechanisms of action are associated with baseline microbiota.
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Affiliation(s)
- Jeffrey B. Warner
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Ida S. Larsen
- Québec Heart and Lung Institute (IUCPQ), Faculty of Medicine, Laval University, Québec city, QC, Canada
| | - Josiah E. Hardesty
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Ying L. Song
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Dennis R. Warner
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Craig J. McClain
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States
- University of Louisville Alcohol Center, University of Louisville School of Medicine, Louisville, KY, United States
- University of Louisville Hepatobiology and Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States
- Robley Rex Veterans Medical Center, Louisville, KY, United States
| | - Rui Sun
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY, United States
| | - Zhongbin Deng
- University of Louisville Alcohol Center, University of Louisville School of Medicine, Louisville, KY, United States
- University of Louisville Hepatobiology and Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY, United States
- Department of Surgery, University of Louisville, Louisville, KY, United States
| | - Benjamin A. H. Jensen
- Québec Heart and Lung Institute (IUCPQ), Faculty of Medicine, Laval University, Québec city, QC, Canada
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Irina A. Kirpich
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States
- University of Louisville Alcohol Center, University of Louisville School of Medicine, Louisville, KY, United States
- University of Louisville Hepatobiology and Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States
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8
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Jensen SK, Pærregaard SI, Brandum EP, Jørgensen AS, Hjortø GM, Jensen BAH. OUP accepted manuscript. Gastroenterol Rep (Oxf) 2022; 10:goac008. [PMID: 35291443 PMCID: PMC8915887 DOI: 10.1093/gastro/goac008] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/07/2022] [Accepted: 02/16/2022] [Indexed: 11/24/2022] Open
Abstract
Organismal survival depends on a well-balanced immune system and maintenance of host–microbe mutualism. The fine-tuned relationship between the gut microbiota and host immunity is constantly challenged by opportunistic bacteria testing the integrity of gastrointestinal (GI) barrier defenses. Barrier dysfunction reduces immunological tolerance towards otherwise innocuous microbes; it is a process that may instigate chronic inflammation. Paradoxically, sustained inflammation further diminishes barrier function, enabling bacterial translocation to extra-intestinal tissues. Once translocated, these bacteria stimulate systemic inflammation, thereby compromising organ function. While genetic risk alleles associate with barrier dysfunction, environmental stressors are key triggers of GI inflammation and associated breakdown in immune tolerance towards resident gut microbes. As dietary components dictate substrate availability, they also orchestrate microbiota composition and function, including migratory and pro-inflammatory potential, thus holding the capacity to fuel both GI and extra-intestinal inflammation. Additionally, Western diet consumption may weaken barrier defenses via curbed Paneth cell function and diminished host-defense peptide secretion. This review focuses on intervenable niches of host–microbe interactions and mucosal immunity with the ambition to provide a framework of plausible strategies to improve barrier function and regain tolerance in the inflamed mucosa via nutritional intervention.
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Affiliation(s)
- Sune K Jensen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Simone I Pærregaard
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Emma P Brandum
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Astrid S Jørgensen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gertrud M Hjortø
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Benjamin A H Jensen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Corresponding author. Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3, Build. 22.5.39, Copenhagen N 2200, Denmark. Tel: +45-35330188;
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9
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Regulatory Peptides in Asthma. Int J Mol Sci 2021; 22:ijms222413656. [PMID: 34948451 PMCID: PMC8707337 DOI: 10.3390/ijms222413656] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/18/2021] [Accepted: 12/19/2021] [Indexed: 02/07/2023] Open
Abstract
Numerous regulatory peptides play a critical role in the pathogenesis of airway inflammation, airflow obstruction and hyperresponsiveness, which are hallmarks of asthma. Some of them exacerbate asthma symptoms, such as neuropeptide Y and tachykinins, while others have ameliorating properties, such as nociception, neurotensin or β-defensin 2. Interacting with peptide receptors located in the lungs or on immune cells opens up new therapeutic possibilities for the treatment of asthma, especially when it is resistant to available therapies. This article provides a concise review of the most important and current findings regarding the involvement of regulatory peptides in asthma pathology.
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Shehwana H, Ijaz S, Fatima A, Walton S, Sheikh ZI, Haider W, Naz S. Transcriptome Analysis of Host Inflammatory Responses to the Ectoparasitic Mite Sarcoptes scabiei var. hominis. Front Immunol 2021; 12:778840. [PMID: 34925353 PMCID: PMC8671885 DOI: 10.3389/fimmu.2021.778840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/02/2021] [Indexed: 11/30/2022] Open
Abstract
Scabies, a human skin infestation caused by the ectoparasitic mite Sarcoptes scabiei var. hominis, affects more than 200 million people globally. The prevailing knowledge of the disease process and host immune response mechanisms is limited. A better understanding of the host-parasite relationship is essential for the identification of novel vaccine and drug targets. Here we aimed to interrogate the transcriptomic profiles of mite-infested human skin biopsies with clinical manifestations of ordinary scabies subjects ("OS"; n = 05) and subjects naive to scabies ("control"; n = 03) using RNASeq data analysis. A combined clustering, network, and pathway mapping approach enabled us to identify key signaling events in the host immune and pro-inflammatory responses to S. scabiei infestation. The clustering patterns showed various differentially expressed genes including inflammatory responses and innate immunity genes (DEFB4A, IL-19, CXCL8, CSF3, SERPINB4, S100A7A, HRNR) and notably upregulation of the JAK-STAT pathway in scabies-infested samples. Mite-infested human skin biopsies (GSE178563) were compared with an ex-vivo porcine infested model (E-MTAB-6433) and human skin equivalents (GSE48459). Marked enrichment of immune response pathways (JAK-STAT signaling, IL-4 and IL-13 pathway, and Toll receptor cascade), chemokine ligands and receptors (CCL17, CCL18, CCL3L1, CCL3L3, CCR7), and cytokines (IL-13 and IL-20) were observed. Additionally, genes known for their role in psoriasis and atopic dermatitis were upregulated, e.g., IL-19. The detailed transcriptomic profile has provided an insight into molecular functions, biological processes, and immunological responses and increased our understanding about transcriptomic regulation of scabies in human.
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Affiliation(s)
- Huma Shehwana
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
| | - Sadaf Ijaz
- Research Centre for Modelling & Simulation, National University of Science and Technology, Islamabad, Pakistan
| | - Abeera Fatima
- Research Centre for Modelling & Simulation, National University of Science and Technology, Islamabad, Pakistan
| | - Shelley Walton
- Inflammation and Healing Research Cluster, School of Health and Sport Sciences, University of the Sunshine Coast, Maroochydore, QLD, Australia
| | - Zafar Iqbal Sheikh
- Department of Dermatology, Pak-Emirates Military Hospital, Rawalpindi, Pakistan
| | - Waseem Haider
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Shumaila Naz
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Pakistan
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11
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Cieślik M, Bagińska N, Górski A, Jończyk-Matysiak E. Human β-Defensin 2 and Its Postulated Role in Modulation of the Immune Response. Cells 2021; 10:cells10112991. [PMID: 34831214 PMCID: PMC8616480 DOI: 10.3390/cells10112991] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/28/2021] [Accepted: 10/30/2021] [Indexed: 12/17/2022] Open
Abstract
Studies described so far suggest that human β-defensin 2 is an important protein of innate immune response which provides protection for the human organism against invading pathogens of bacterial, viral, fungal, as well as parasitical origin. Its pivotal role in enhancing immunity was proved in infants. It may also be considered a marker of inflammation. Its therapeutic administration has been suggested for maintenance of the balance of systemic homeostasis based on the appropriate composition of the microbiota. It has been suggested that it may be an important therapeutic tool for modulating the response of the immune system in many inflammatory diseases, offering new treatment modalities. For this reason, its properties and role in the human body discussed in this review should be studied in more detail.
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Affiliation(s)
- Martyna Cieślik
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (M.C.); (N.B.); (E.J.-M.)
| | - Natalia Bagińska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (M.C.); (N.B.); (E.J.-M.)
| | - Andrzej Górski
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (M.C.); (N.B.); (E.J.-M.)
- Phage Therapy Unit, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland
- Infant Jesus Hospital, The Medical University of Warsaw, 02-006 Warsaw, Poland
- Correspondence:
| | - Ewa Jończyk-Matysiak
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (M.C.); (N.B.); (E.J.-M.)
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