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Safiri S, Mousavi SE, Nejadghaderi SA, Motlagh Asghari K, Karamzad N, Sullman MJM, Kolahi AA, Abdollahi M. Vitamin A deficiency in the MENA region: a 30-year analysis (1990-2019). Front Nutr 2024; 11:1413617. [PMID: 38903625 PMCID: PMC11187328 DOI: 10.3389/fnut.2024.1413617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 05/27/2024] [Indexed: 06/22/2024] Open
Abstract
Background Vitamin A deficiency (VAD) is a common micronutrient deficiency that imposes a substantial burden worldwide. This study examined the burden of VAD from 1990 to 2019 in the Middle East and North Africa (MENA) region by age, sex and sociodemographic index (SDI). Methods The data were obtained from the Global Burden of Disease (GBD) 2019 database. We reported the prevalence, incidence, and years lived with disability (YLDs) that were attributable to VAD for the MENA region, along with its constituent countries. Results In 2019, the MENA region had 30.6 million prevalent cases of VAD, with an age-standardized prevalence rate of 5249.9 per 100,000 population. In addition, VAD was responsible for 62.2 thousand YLDs, with an age-standardized YLD rate of 10.2 per 100,000. The age-standardized prevalence [50.3% (-55.9 to -44.7)] and YLD [-49.3% (-55.3 to -43.1)] rates of VAD have significantly decreased since 1990. In 2019, the MENA region's VAD-attributable YLD rate was below the global average for males and females across all age groups. Additionally, SDI was negatively associated the age-standardized YLD rate of VAD. Conclusion This study underscores the necessity of frequently updating health data and developing guidelines and regulations to prevent, detect early, and effectively treat VAD in the MENA countries.
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Affiliation(s)
- Saeid Safiri
- Social Determinants of Health Research Center, Department of Community Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Clinical Research Development Unit of Tabriz Valiasr Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Ehsan Mousavi
- Neurosciences Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Aria Nejadghaderi
- HIV/STI Surveillance Research Center, WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
- Systematic Review and Meta-analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Kimia Motlagh Asghari
- Neurosciences Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nahid Karamzad
- Department of Persian Medicine, School of Traditional Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Nutrition Research Center, Department of Biochemistry and Diet Therapy, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mark J. M. Sullman
- Department of Life and Health Sciences, University of Nicosia, Nicosia, Cyprus
- Department of Social Sciences, University of Nicosia, Nicosia, Cyprus
| | - Ali-Asghar Kolahi
- Social Determinants of Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Morteza Abdollahi
- Social Determinants of Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Carrera ARM, Eleazar EG, Caparanga AR, Tayo LL. Theoretical Studies on the Quantitative Structure-Toxicity Relationship of Polychlorinated Biphenyl Congeners Reveal High Affinity Binding to Multiple Human Nuclear Receptors. TOXICS 2024; 12:49. [PMID: 38251005 PMCID: PMC10821279 DOI: 10.3390/toxics12010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/23/2024]
Abstract
Polychlorinated biphenyls (PCBs) are organic chemicals consisting of a biphenyl structure substituted with one to ten chlorine atoms, with 209 congeners depending on the number and position of the chlorine atoms. PCBs are widely known to be endocrine-disrupting chemicals (EDCs) and have been found to be involved in several diseases/disorders. This study takes various molecular descriptors of these PCBs (e.g., molecular weight) and toxicity endpoints as molecular activities, investigating the possibility of correlations via the quantitative structure-toxicity relationship (QSTR). This study then focuses on molecular docking and dynamics to investigate the docking behavior of the strongest-binding PCBs to nuclear receptors and compares these to the docking behavior of their natural ligands. Nuclear receptors are a family of transcription factors activated by steroid hormones, and they have been investigated to consider the impact of PCBs on humans in this context. It has been observed that the docking affinity of PCBs is comparable to that of the natural ligands, but they are inferior in terms of stability and interacting forces, as shown by the RMSD and total energy values. However, it is noted that most nuclear receptors respond to PCBs similarly to how they respond to their natural ligands-as shown in the RMSF plots-the most similar of which are seen in the ER, THR-β, and RAR-α. However, this study is performed purely in silico and will need experimental verification for validation.
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Affiliation(s)
- Andrei Raphael M. Carrera
- School of Graduate Studies, Mapúa University, Manila 1002, Philippines; (A.R.M.C.); (E.G.E.)
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapúa University, Manila 1002, Philippines;
| | - Elisa G. Eleazar
- School of Graduate Studies, Mapúa University, Manila 1002, Philippines; (A.R.M.C.); (E.G.E.)
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapúa University, Manila 1002, Philippines;
| | - Alvin R. Caparanga
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapúa University, Manila 1002, Philippines;
| | - Lemmuel L. Tayo
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapúa University, Manila 1002, Philippines;
- Department of Biology, School of Medicine and Health Sciences, Mapúa University, Makati 1200, Philippines
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3
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Peña-Juárez MC, Guadarrama-Escobar OR, Serrano-Castañeda P, Méndez-Albores A, Vázquez-Durán A, Vera-Graziano R, Rodríguez-Pérez B, Salgado-Machuca M, Anguiano-Almazán E, Morales-Florido MI, Rodríguez-Cruz IM, Escobar-Chávez JJ. Synergistic Effect of Retinoic Acid and Lactoferrin in the Maintenance of Gut Homeostasis. Biomolecules 2024; 14:78. [PMID: 38254678 PMCID: PMC10813542 DOI: 10.3390/biom14010078] [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: 11/22/2023] [Revised: 12/26/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Lactoferrin (LF) is a glycoprotein that binds to iron ions (Fe2+) and other metallic ions, such as Mg2+, Zn2+, and Cu2+, and has antibacterial and immunomodulatory properties. The antibacterial properties of LF are due to its ability to sequester iron. The immunomodulatory capability of LF promotes homeostasis in the enteric environment, acting directly on the beneficial microbiota. LF can modulate antigen-presenting cell (APC) biology, including migration and cell activation. Nonetheless, some gut microbiota strains produce toxic metabolites, and APCs are responsible for initiating the process that inhibits the inflammatory response against them. Thus, eliminating harmful strains lowers the risk of inducing chronic inflammation, and consequently, metabolic disease, which can progress to type 2 diabetes mellitus (T2DM). LF and retinoic acid (RA) exhibit immunomodulatory properties such as decreasing cytokine production, thus modifying the inflammatory response. Their activities have been observed both in vitro and in vivo. The combined, simultaneous effect of these molecules has not been studied; however, the synergistic effect of LF and RA may be employed for enhancing the secretion of humoral factors, such as IgA. We speculate that the combination of LF and RA could be a potential prophylactic alternative for the treatment of metabolic dysregulations such as T2DM. The present review focuses on the importance of a healthy diet for a balanced gut and describes how probiotics and prebiotics with immunomodulatory activity as well as inductors of differentiation and cell proliferation could be acquired directly from the diet or indirectly through the oral administration of formulations aimed to maintain gut health or restore a eubiotic state in an intestinal environment that has been dysregulated by external factors such as stress and a high-fat diet.
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Affiliation(s)
- Ma. Concepción Peña-Juárez
- Unidad de Investigación Multidisciplinaria Lab-12 (Sistemas Transdérmicos y Materiales Nanoestructurados), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (M.C.P.-J.); (O.R.G.-E.); (P.S.-C.); (M.S.-M.); (E.A.-A.); (M.I.M.-F.)
| | - Omar Rodrigo Guadarrama-Escobar
- Unidad de Investigación Multidisciplinaria Lab-12 (Sistemas Transdérmicos y Materiales Nanoestructurados), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (M.C.P.-J.); (O.R.G.-E.); (P.S.-C.); (M.S.-M.); (E.A.-A.); (M.I.M.-F.)
| | - Pablo Serrano-Castañeda
- Unidad de Investigación Multidisciplinaria Lab-12 (Sistemas Transdérmicos y Materiales Nanoestructurados), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (M.C.P.-J.); (O.R.G.-E.); (P.S.-C.); (M.S.-M.); (E.A.-A.); (M.I.M.-F.)
| | - Abraham Méndez-Albores
- Unidad de Investigación Multidisciplinaria Lab-14 (Ciencia y Tecnología de los Materiales), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (A.M.-A.); (A.V.-D.)
| | - Alma Vázquez-Durán
- Unidad de Investigación Multidisciplinaria Lab-14 (Ciencia y Tecnología de los Materiales), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (A.M.-A.); (A.V.-D.)
| | - Ricardo Vera-Graziano
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apartado Postal 70-360, Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico;
| | - Betsabé Rodríguez-Pérez
- Laboratorio de Servicio de Análisis de Propóleos (LASAP), Unidad de Investigación Multidisciplinaria (UIM), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli 54714, Mexico;
| | - Mariana Salgado-Machuca
- Unidad de Investigación Multidisciplinaria Lab-12 (Sistemas Transdérmicos y Materiales Nanoestructurados), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (M.C.P.-J.); (O.R.G.-E.); (P.S.-C.); (M.S.-M.); (E.A.-A.); (M.I.M.-F.)
| | - Ericka Anguiano-Almazán
- Unidad de Investigación Multidisciplinaria Lab-12 (Sistemas Transdérmicos y Materiales Nanoestructurados), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (M.C.P.-J.); (O.R.G.-E.); (P.S.-C.); (M.S.-M.); (E.A.-A.); (M.I.M.-F.)
| | - Miriam Isabel Morales-Florido
- Unidad de Investigación Multidisciplinaria Lab-12 (Sistemas Transdérmicos y Materiales Nanoestructurados), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (M.C.P.-J.); (O.R.G.-E.); (P.S.-C.); (M.S.-M.); (E.A.-A.); (M.I.M.-F.)
- Laboratorio de Farmacia Molecular y Liberación Controlada, Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Mexico City 04960, Mexico
| | - Isabel Marlene Rodríguez-Cruz
- Unidad de Enseñanza e Investigación, Hospital Regional e Alta Especialidad de Sumpango, Carretera Zumpango-Jilotzingo #400, Barrio de Santiago, 2ª Sección, Zumpango 55600, Mexico;
| | - José Juan Escobar-Chávez
- Unidad de Investigación Multidisciplinaria Lab-12 (Sistemas Transdérmicos y Materiales Nanoestructurados), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán Teoloyucan, Km 2.5, San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico; (M.C.P.-J.); (O.R.G.-E.); (P.S.-C.); (M.S.-M.); (E.A.-A.); (M.I.M.-F.)
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Nakata T, Li C, Mayassi T, Lin H, Ghosh K, Segerstolpe Å, Diamond EL, Herbst P, Biancalani T, Gaddam S, Parkar S, Lu Z, Jaiswal A, Li B, Creasey EA, Lefkovith A, Daly MJ, Graham DB, Xavier RJ. Genetic vulnerability to Crohn's disease reveals a spatially resolved epithelial restitution program. Sci Transl Med 2023; 15:eadg5252. [PMID: 37878672 PMCID: PMC10798370 DOI: 10.1126/scitranslmed.adg5252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 10/06/2023] [Indexed: 10/27/2023]
Abstract
Effective tissue repair requires coordinated intercellular communication to sense damage, remodel the tissue, and restore function. Here, we dissected the healing response in the intestinal mucosa by mapping intercellular communication at single-cell resolution and integrating with spatial transcriptomics. We demonstrated that a risk variant for Crohn's disease, hepatocyte growth factor activator (HGFAC) Arg509His (R509H), disrupted a damage-sensing pathway connecting the coagulation cascade to growth factors that drive the differentiation of wound-associated epithelial (WAE) cells and production of a localized retinoic acid (RA) gradient to promote fibroblast-mediated tissue remodeling. Specifically, we showed that HGFAC R509H was activated by thrombin protease activity but exhibited impaired proteolytic activation of the growth factor macrophage-stimulating protein (MSP). In Hgfac R509H mice, reduced MSP activation in response to wounding of the colon resulted in impaired WAE cell induction and delayed healing. Through integration of single-cell transcriptomics and spatial transcriptomics, we demonstrated that WAE cells generated RA in a spatially restricted region of the wound site and that mucosal fibroblasts responded to this signal by producing extracellular matrix and growth factors. We further dissected this WAE cell-fibroblast signaling circuit in vitro using a genetically tractable organoid coculture model. Collectively, these studies exploited a genetic perturbation associated with human disease to disrupt a fundamental biological process and then reconstructed a spatially resolved mechanistic model of tissue healing.
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Affiliation(s)
- Toru Nakata
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Chenhao Li
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Toufic Mayassi
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Helen Lin
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Koushik Ghosh
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Åsa Segerstolpe
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Emma L. Diamond
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Paula Herbst
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | | | | | | | - Ziqing Lu
- Genentech, South San Francisco, CA 94080, USA
| | - Alok Jaiswal
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Bihua Li
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Elizabeth A. Creasey
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Ariel Lefkovith
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Mark J. Daly
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Analytical and Translational Genetics Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Daniel B. Graham
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Ramnik J. Xavier
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
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Elste J, Chan A, Patil C, Tripathi V, Shadrack DM, Jaishankar D, Hawkey A, Mungerson MS, Shukla D, Tiwari V. Archaic connectivity between the sulfated heparan sulfate and the herpesviruses - An evolutionary potential for cross-species interactions. Comput Struct Biotechnol J 2023; 21:1030-1040. [PMID: 36733705 PMCID: PMC9880898 DOI: 10.1016/j.csbj.2023.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/04/2023] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
The structural diversity of metazoic heparan sulfate (HS) composed of unique sulfated domains is remarkably preserved among various vertebrates and invertebrate species. Interestingly the sulfated moieties of HS have been known as the key determinants generating extraordinary ligand binding sites in the HS chain to regulate multiple biological functions and homeostasis. One such ligand for 3-O sulfation in the HS chain is a glycoprotein D (gD) from an ancient herpesvirus, herpes simplex virus (HSV). This interaction between gD and 3-O sulfated HS leads to virus-cell fusion to promote HSV entry. It is quite astonishing that HSV-1, which infects two-thirds of the world population, is also capable of causing severe diseases in primates and non-primates including primitive zebrafish. Supporting evidence that HSV may cross the species barrier comes from the fact that an enzymatic modification in HS encoded by 3-O sulfotransferase-3 (3-OST-3) from a vertebrate zoonotic species enhances HSV-1 infectivity. The latter phenomenon suggests the possible role of sulfated-HS as an entry receptor during reverse zoonosis, especially during an event when humans encounter domesticated animals in proximity. In this mini-review, we explore the possibility that structural diversity in HS may have played a substantial role in species-specific adaptability for herpesviruses in general including their potential role in promoting cross-species transmission.
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Affiliation(s)
- James Elste
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA
| | - Angelica Chan
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA
| | - Chandrashekhar Patil
- Department of Ophthalmology & Visual Sciences, University of Illinois at Chicago, IL 60612, USA
| | - Vinisha Tripathi
- Mountain Vista High School, 10585 Mountain Vista Ridge, Highlands Ranch, CO 80126, USA
| | - Daniel M. Shadrack
- Department of Chemistry, Faculty of Natural and Applied Sciences, St John's University of Tanzania, Dodoma, Tanzania
| | - Dinesh Jaishankar
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Andrew Hawkey
- Department of Biomedical Sciences, Midwestern University, Downers Grove, IL 60515, USA
| | - Michelle Swanson Mungerson
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA
| | - Deepak Shukla
- Department of Ophthalmology & Visual Sciences, University of Illinois at Chicago, IL 60612, USA
| | - Vaibhav Tiwari
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA,Corresponding author.
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Selezneva A, Gibb AJ, Willis D. The Nuclear Envelope as a Regulator of Immune Cell Function. Front Immunol 2022; 13:840069. [PMID: 35757775 PMCID: PMC9226455 DOI: 10.3389/fimmu.2022.840069] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/10/2022] [Indexed: 01/07/2023] Open
Abstract
The traditional view of the nuclear envelope (NE) was that it represented a relatively inert physical barrier within the cell, whose main purpose was to separate the nucleoplasm from the cytoplasm. However, recent research suggests that this is far from the case, with new and important cellular functions being attributed to this organelle. In this review we describe research suggesting an important contribution of the NE and its constituents in regulating the functions of cells of the innate and adaptive immune system. One of the standout properties of immune cells is their ability to migrate around the body, allowing them to carry out their physiological/pathophysiology cellular role at the appropriate location. This together with the physiological role of the tissue, changes in tissue matrix composition due to disease and aging, and the activation status of the immune cell, all result in immune cells being subjected to different mechanical forces. We report research which suggests that the NE may be an important sensor/transducer of these mechanical signals and propose that the NE is an integrator of both mechanical and chemical signals, allowing the cells of the innate immune system to precisely regulate gene transcription and functionality. By presenting this overview we hope to stimulate the interests of researchers into this often-overlooked organelle and propose it should join the ranks of mitochondria and phagosome, which are important organelles contributing to immune cell function.
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Affiliation(s)
- Anna Selezneva
- Department of Neuroscience, Physiology & Pharmacology, University College London, London, United Kingdom
| | - Alasdair J Gibb
- Department of Neuroscience, Physiology & Pharmacology, University College London, London, United Kingdom
| | - Dean Willis
- Department of Neuroscience, Physiology & Pharmacology, University College London, London, United Kingdom
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7
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Prakash S, Saini S, Kumari S, Singh B, Kureel AK, Rai AK. Retinoic acid restores the levels of cellular cholesterol in Leishmania donovani infected macrophages by increasing npc1 and npc2 expressions. Biochimie 2022; 198:23-32. [PMID: 35272007 DOI: 10.1016/j.biochi.2022.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 12/20/2022]
Abstract
Visceral leishmaniasis (VL) is a fatal form among all forms of leishmaniasis and is caused by visceralization of the Leishmania donovani (Ld) parasite to the critical organs. Mild to severe malnutrition is common in VL patients and the deficiency of retinoic acid (RA), an important micronutrient, results in a compromised state of immune response in macrophages (mφ) leading to the increased parasite load. In the continuation of our earlier work, we observed loss of cellular cholesterol in infected mφ in the absence of RA i.e., upon inhibition of RALDH pathway. Moreover, the Leishmania utilizes host cholesterol for the establishment of infection and causes a decrease in the expressions of Niemann-Pick C2 (npc2) and Niemann-Pick C1 (npc1) genes involved in the uptake of extracellular cholesterol. This results in reduced levels of cellular cholesterol in infected mφ. Intrigued by this, as the first sign of our hypothesis, we investigated the presence of RA Response Element (RARE) sequences in the upstream of npc1 and npc2 genes. To functionally confirm this, we measured their expressions and the levels of cellular cholesterol in Ld infected mφ in the absence (i.e., using an inhibitor of RALDH pathway) and presence of RA. We found restoration of the levels of cellular cholesterol in infected mφ under the supplementation of RA resulting in the decreased parasite load. Hence, the supplementation of RA with the standard therapy and/or preventive use of RA could be potentially an advancement in the treatment and cure of VL patients.
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Affiliation(s)
- Satya Prakash
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, UP, India
| | - Sheetal Saini
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, UP, India
| | - Smita Kumari
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, UP, India
| | - Bharat Singh
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, UP, India
| | - Amit Kumar Kureel
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, UP, India
| | - Ambak Kumar Rai
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, UP, India.
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Vitória JJM, Trigo D, da Cruz E Silva OAB. Revisiting APP secretases: an overview on the holistic effects of retinoic acid receptor stimulation in APP processing. Cell Mol Life Sci 2022; 79:101. [PMID: 35089425 PMCID: PMC11073327 DOI: 10.1007/s00018-021-04090-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 11/18/2021] [Accepted: 12/01/2021] [Indexed: 01/03/2023]
Abstract
Alzheimer's disease (AD) is the leading cause of dementia worldwide and is characterized by the accumulation of the β-amyloid peptide (Aβ) in the brain, along with profound alterations in phosphorylation-related events and regulatory pathways. The production of the neurotoxic Aβ peptide via amyloid precursor protein (APP) proteolysis is a crucial step in AD development. APP is highly expressed in the brain and is complexly metabolized by a series of sequential secretases, commonly denoted the α-, β-, and γ-cleavages. The toxicity of resulting fragments is a direct consequence of the first cleaving event. β-secretase (BACE1) induces amyloidogenic cleavages, while α-secretases (ADAM10 and ADAM17) result in less pathological peptides. Hence this first cleavage event is a prime therapeutic target for preventing or reverting initial biochemical events involved in AD. The subsequent cleavage by γ-secretase has a reduced impact on Aβ formation but affects the peptides' aggregating capacity. An array of therapeutic strategies are being explored, among them targeting Retinoic Acid (RA) signalling, which has long been associated with neuronal health. Additionally, several studies have described altered RA levels in AD patients, reinforcing RA Receptor (RAR) signalling as a promising therapeutic strategy. In this review we provide a holistic approach focussing on the effects of isoform-specific RAR modulation with respect to APP secretases and discuss its advantages and drawbacks in subcellular AD related events.
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Affiliation(s)
- José J M Vitória
- Department of Medical Sciences, Neurosciences and Signalling Group, Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Diogo Trigo
- Department of Medical Sciences, Neurosciences and Signalling Group, Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Odete A B da Cruz E Silva
- Department of Medical Sciences, Neurosciences and Signalling Group, Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal.
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9
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Capriello S, Stramazzo I, Bagaglini MF, Brusca N, Virili C, Centanni M. The relationship between thyroid disorders and vitamin A.: A narrative minireview. Front Endocrinol (Lausanne) 2022; 13:968215. [PMID: 36303869 PMCID: PMC9592814 DOI: 10.3389/fendo.2022.968215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/09/2022] [Indexed: 11/19/2022] Open
Abstract
The terms "vitamin A" and "retinoids" encompass a group of fat-soluble compounds essential for human nutrition. Some of them (retinol, retinal, 9-cis-retinoic acid, tretinoin, and 13-cis-retinoic acid) are fully natural, while others are synthetic compounds used mostly for therapeutic purposes. Some evidence indicates that the nutritional status of these retinoids (i.e., the presence or absence of deficiency) is able to modulate thyroid gland metabolism. Vitamin A deficiency is tightly correlated with structural and functional impairment of the thyroid gland and is often associated with iodine deficiency. Furthermore, retinoids are involved in different immune functions, as well as in the process of activation, proliferation, and differentiation of regulatory T cells (Treg). This is particularly significant given the high prevalence of thyroid autoimmune disorders, whose pathogenesis seems to be related to the altered homeostasis of regulatory T cells. Retinoids are also involved in the modulation of gene expression via their interaction with nuclear receptors, and they also act as cofactors in cell growth and differentiation. The ability of retinoic acid to increase iodine uptake and sodium-iodine symporter activity in human thyroid cancer cell lines suggests that some retinoids and their derivatives may be of use in the treatment of different thyroid tumors. This minireview summarizes the current knowledge on the link between nutritional intake of vitamin A and various thyroid disorders.
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Affiliation(s)
- S. Capriello
- Department of Medico-Surgical Sciences and Biotechnologies, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - I. Stramazzo
- Department of Medico-Surgical Sciences and Biotechnologies, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - M. F. Bagaglini
- Department of Medico-Surgical Sciences and Biotechnologies, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - N. Brusca
- Department of Medico-Surgical Sciences and Biotechnologies, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - C. Virili
- Department of Medico-Surgical Sciences and Biotechnologies, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - M. Centanni
- Department of Medico-Surgical Sciences and Biotechnologies, ‘‘Sapienza’’ University of Rome, Latina, Italy
- Endocrine Unit, Azienda Unità Sanitaria Locale Latina, Latina, Italy
- *Correspondence: M. Centanni,
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Abstract
Although relatively uncommon, autoimmune bullous diseases carry the risk of increased mortality and can significantly impact quality of life. This group of diseases is broad and encompasses subepidermal conditions like bullous pemphigoid, cicatricial pemphigoid, epidermolysis bullosa acquisita, dermatitis herpetiformis, and linear IgA bullous dermatosis, as well as intraepidermal conditions like pemphigus and its variants. The pathophysiology of each condition is incompletely understood but broadly involves the formation of autoantibodies targeting skin adhesion proteins, a process which relies on a complex interplay between a dysregulated immune system, genetic predisposition, and environmental factors. We review the impact of nutrition on pathogenesis, clinical course, and treatment of various autoimmune bullous diseases.
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Carazo A, Macáková K, Matoušová K, Krčmová LK, Protti M, Mladěnka P. Vitamin A Update: Forms, Sources, Kinetics, Detection, Function, Deficiency, Therapeutic Use and Toxicity. Nutrients 2021; 13:1703. [PMID: 34069881 PMCID: PMC8157347 DOI: 10.3390/nu13051703] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/07/2021] [Accepted: 05/13/2021] [Indexed: 12/12/2022] Open
Abstract
Vitamin A is a group of vital micronutrients widely present in the human diet. Animal-based products are a rich source of the retinyl ester form of the vitamin, while vegetables and fruits contain carotenoids, most of which are provitamin A. Vitamin A plays a key role in the correct functioning of multiple physiological functions. The human organism can metabolize natural forms of vitamin A and provitamin A into biologically active forms (retinol, retinal, retinoic acid), which interact with multiple molecular targets, including nuclear receptors, opsin in the retina and, according to the latest research, also some enzymes. In this review, we aim to provide a complex view on the present knowledge about vitamin A ranging from its sources through its physiological functions to consequences of its deficiency and metabolic fate up to possible pharmacological administration and potential toxicity. Current analytical methods used for its detection in real samples are included as well.
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Affiliation(s)
- Alejandro Carazo
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic;
| | - Kateřina Macáková
- Department of Pharmacognosy, Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic;
| | - Kateřina Matoušová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 500 05 Hradec Králové, Czech Republic; (K.M.); (L.K.K.)
| | - Lenka Kujovská Krčmová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 500 05 Hradec Králové, Czech Republic; (K.M.); (L.K.K.)
- Department of Analytical Chemistry, Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Michele Protti
- The Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum–University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy;
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic;
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12
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Investigation of an ALDH1A1-specific inhibitor for suppression of weight gain in a diet-induced mouse model of obesity. Int J Obes (Lond) 2021; 45:1542-1552. [PMID: 33934107 PMCID: PMC8238815 DOI: 10.1038/s41366-021-00818-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/17/2021] [Accepted: 04/09/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Retinoic acid (RA) controls diverse physiological functions including weight regulation and energy metabolism. It has been reported that mice lacking ALDH1A1, one of the aldehyde dehydrogenases (ALDH) that synthesize RA, are healthy and resistant to weight gain, raising the possibility that inhibiting this enzyme might treat obesity. We previously demonstrated that treatment with a pan-ALDH1A enzyme inhibitor, WIN18446, suppressed weight gain in mice fed a high-fat diet (HFD), but caused increased hepatic lipidosis and reversible male infertility. METHODS A series of piperazine compounds that inhibited ALDH1A1 were identified and their inhibitory activity was characterized in vitro using purified recombinant enzymes and cell-based assay systems. One potent compound, FSI-TN42 (N42) was examined for its oral bioavailability and pharmacodynamic effects. In addition, its effect on weight gain was investigated by daily oral administration to C57BL/6 male mice receiving a HFD, and compared with mice receiving WIN18446 or vehicle alone (n = 6/group, 200 mg compound/kg body weight) for 5 weeks. Body weights were measured weekly, and a glucose tolerance test was performed after 4 weeks of treatment. Tissues were collected to determine changes in adipose weight, hepatic lipidosis, retinoid metabolism, and expression of genes associated with RA and lipid metabolism. RESULTS N42 irreversibly binds and inhibits ALDH1A1 in vitro with a low nM IC50 and 800-fold specificity for ALDH1A1 compared to ALDH1A2. Daily oral administration of N42 significantly suppressed weight gain (P < 0.05) and reduced visceral adiposity (p < 0.05) in mice fed a HFD without the hepatic lipidosis observed with WIN18446 treatment. CONCLUSIONS We developed a potent and specific inhibitor of ALDH1A1 that suppressed weight gain in mice fed a HFD. These findings demonstrate that inhibition of ALDH1A1 is a feasible target for drug development to treat and/or prevent obesity.
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Raza A, Schulz BL, Nouwens A, Jackson LA, Piper EK, James P, Jonsson NN, Tabor AE. Serum proteomes of Santa Gertrudis cattle before and after infestation with Rhipicephalus australis ticks. Parasite Immunol 2021; 43:e12836. [PMID: 33843060 DOI: 10.1111/pim.12836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 01/22/2023]
Abstract
Previous studies have applied genomics and transcriptomics to identify immune and genetic markers as key indicator traits for cattle tick susceptibility/resistance; however, results differed between breeds, and there is lack of information on the use of host proteomics. Serum samples from Santa Gertrudis cattle (naïve and phenotyped over 105 days as tick-resistant [TR] or tick-susceptible [TS]) were used to conduct differential abundance analyses of protein profiles. Serum proteins were digested into peptides followed by identification and quantification using sequential window acquisition of all instances of theoretical fragment ion mass spectrometry. Before tick infestation, abundance of 28 proteins differed significantly (adjusted P < 10-5 ) between TR and TS. These differences were also observed following tick infestation (TR vs TS) with a further eight differentially abundant proteins in TR cattle, suggesting possible roles in adaptive responses. The intragroup comparisons (TS-0 vs TS and TR-0 vs TR) showed that tick infestation elicited quite similar responses in both groups of cattle, but with relatively stronger responses in TR cattle. Many of the significantly differentially abundant proteins in TR Santa Gertrudis cattle (before and after tick infestation) were associated with immune responses including complement factors, chemotaxis for immune cells and acute-phase responses.
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Affiliation(s)
- Ali Raza
- Centre for Animal Science, Queensland Alliance for Agriculture & Food Innovation, University of Queensland, St Lucia, Qld, Australia
| | - Benjamin L Schulz
- School of Chemistry and Molecular Bioscience, University of Queensland, Brisbane, Qld, Australia
| | - Amanda Nouwens
- School of Chemistry and Molecular Bioscience, University of Queensland, Brisbane, Qld, Australia
| | - Lousie A Jackson
- Biosecurity Sciences Laboratory, Department of Agriculture and Fisheries, Brisbane, Qld, Australia
| | - Emily K Piper
- Global Genetics Laboratory Operations and Customer Support, Kalamazoo, MI, USA
| | - Peter James
- Centre for Animal Science, Queensland Alliance for Agriculture & Food Innovation, University of Queensland, St Lucia, Qld, Australia
| | - Nicholas N Jonsson
- The University of Glasgow, Institute of Biodiversity, Animal Health and Comparative Medicine, Glasgow, UK
| | - Ala E Tabor
- Centre for Animal Science, Queensland Alliance for Agriculture & Food Innovation, University of Queensland, St Lucia, Qld, Australia.,School of Chemistry and Molecular Bioscience, University of Queensland, Brisbane, Qld, Australia
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Leal AS, Reich LA, Moerland JA, Zhang D, Liby KT. Potential therapeutic uses of rexinoids. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2021; 91:141-183. [PMID: 34099107 DOI: 10.1016/bs.apha.2021.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The discovery of nuclear receptors, particularly retinoid X receptors (RXR), and their involvement in numerous pathways related to development sparked interest in their immunomodulatory properties. Genetic models using deletion or overexpression of RXR and the subsequent development of several small molecules that are agonists or antagonists of this receptor support a promising therapeutic role for these receptors in immunology. Bexarotene was approved in 1999 for the treatment of cutaneous T cell lymphoma. Several other small molecule RXR agonists have since been synthesized with limited preclinical development, but none have yet achieved FDA approval. Cancer treatment has recently been revolutionized with the introduction of immune checkpoint inhibitors, but their success has been restricted to a minority of patients. This review showcases the emerging immunomodulatory effects of RXR and the potential of small molecules that target this receptor as therapies for cancer and other diseases. Here we describe the essential roles that RXR and partner receptors play in T cells, dendritic cells, macrophages and epithelial cells, especially within the tumor microenvironment. Most of these effects are site and cancer type dependent but skew immune cells toward an anti-inflammatory and anti-tumor effect. This beneficial effect on immune cells supports the promise of combining rexinoids with approved checkpoint blockade therapies in order to enhance efficacy of the latter and to delay or potentially eliminate drug resistance. The data compiled in this review strongly suggest that targeting RXR nuclear receptors is a promising new avenue in immunomodulation for cancer and other chronic inflammatory diseases.
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Affiliation(s)
- Ana S Leal
- Department of Pharmacology & Toxicology, Michigan State University, East Lansing, MI, United States
| | - Lyndsey A Reich
- Department of Pharmacology & Toxicology, Michigan State University, East Lansing, MI, United States
| | - Jessica A Moerland
- Department of Pharmacology & Toxicology, Michigan State University, East Lansing, MI, United States
| | - Di Zhang
- Department of Pharmacology & Toxicology, Michigan State University, East Lansing, MI, United States
| | - Karen T Liby
- Department of Pharmacology & Toxicology, Michigan State University, East Lansing, MI, United States.
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15
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Holland CV. The long and winding road of Ascaris larval migration: the role of mouse models. Parasitology 2021; 148:1-9. [PMID: 33612124 PMCID: PMC8660642 DOI: 10.1017/s0031182021000366] [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: 01/31/2021] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 11/27/2022]
Abstract
Ascaris lumbricoides and Ascaris suum are helminth parasites of humans and pigs, respectively. The life cycle of Ascaris sets it apart from the other soil-transmitted helminths because of its hepato-tracheal migration. Larval migration contributes to underestimated morbidity in humans and pigs. This migration, coupled with a lack of a murine model in which the Ascaris parasite might complete its life cycle, has undoubtedly contributed to the neglected status of the ascarid. Our knowledge of the epidemiology of adult worm infections had led us to an enhanced understanding of patterns of infection such as aggregation and predisposition; however, the mechanisms underlying these complex phenomena remain elusive. Carefully controlled experiments in defined inbred strains of mice – with enhanced recovery of larvae in tandem with measurements of cellular, histopathological and molecular processes – have greatly enhanced our knowledge of the early phase of infection, a phase crucial to the success or failure of adult worm establishment. Furthermore, the recent development of a mouse model of susceptibility and resistance, with highly consistent and diverging Ascaris larval burdens in the murine lungs, represents the extremes of the host phenotype displayed in the aggregated distribution of worms and provides an opportunity to explore the mechanistic basis that confers predisposition to light and heavy Ascaris infection. Certainly, detailed knowledge of the cellular hepatic and pulmonary responses at the molecular level can be accrued from murine models of infection and, once available, may enhance our ability to develop immunomodulatory therapies to elicit resistance to infection.
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Affiliation(s)
- C. V. Holland
- Department of Zoology, School of Natural Sciences, Trinity College, Dublin 2, Ireland
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16
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Guntner AS, Doppler C, Wechselberger C, Bernhard D, Buchberger W. HPLC-MS/MS Shows That the Cellular Uptake of All- Trans-Retinoic Acid under Hypoxia Is Downregulated by the Novel Active Agent 5-Methoxyleoligin. Cells 2020; 9:cells9092048. [PMID: 32911794 PMCID: PMC7563598 DOI: 10.3390/cells9092048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/28/2020] [Accepted: 09/07/2020] [Indexed: 11/16/2022] Open
Abstract
All-trans-retinoic acid (atRA) is the essential derivative of vitamin A and is of interest due to its various biological key functions. As shown in the recent literature, atRA also plays a role in the failing heart during myocardial infarction, the leading cause of death globally. To date insufficient mechanistic information has been available on related hypoxia-induced cell damage and reperfusion injuries. However, it has been demonstrated that a reduction in cellular atRA uptake abrogates hypoxia-mediated cell and tissue damage, which may offer a new route for intervention. Consequently, in this study, the effect of the novel cardio-protective compound 5-methoxyleoligin (5ML) on cellular atRA uptake was tested in human umbilical-vein endothelial cells (HUVECs). For this purpose, a high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) method was developed to assess intra-cellular levels of the active substance and corresponding levels of vitamin A and its derivatives, including potential cis/trans isomers. This work also focused on light-induced isomerization and the stability of biological sample material to ensure sample integrity and avoid biased conclusions. This study provides evidence of the inhibitory effect of 5ML on cellular atRA uptake, a promising step toward a novel therapy for myocardial infarction.
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Affiliation(s)
- Armin Sebastian Guntner
- Institute of Analytical Chemistry, Johannes Kepler University Linz, 4040 Linz, Austria;
- Correspondence: ; Tel.: +43-732-2468-9700
| | - Christian Doppler
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, 4020 Linz, Austria; (C.D.); (C.W.); (D.B.)
| | - Christian Wechselberger
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, 4020 Linz, Austria; (C.D.); (C.W.); (D.B.)
| | - David Bernhard
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, 4020 Linz, Austria; (C.D.); (C.W.); (D.B.)
| | - Wolfgang Buchberger
- Institute of Analytical Chemistry, Johannes Kepler University Linz, 4040 Linz, Austria;
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Saez A, Herrero-Fernandez B, Gomez-Bris R, Somovilla-Crespo B, Rius C, Gonzalez-Granado JM. Lamin A/C and the Immune System: One Intermediate Filament, Many Faces. Int J Mol Sci 2020; 21:E6109. [PMID: 32854281 PMCID: PMC7504305 DOI: 10.3390/ijms21176109] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 12/11/2022] Open
Abstract
Nuclear envelope lamin A/C proteins are a major component of the mammalian nuclear lamina, a dense fibrous protein meshwork located in the nuclear interior. Lamin A/C proteins regulate nuclear mechanics and structure and control cellular signaling, gene transcription, epigenetic regulation, cell cycle progression, cell differentiation, and cell migration. The immune system is composed of the innate and adaptive branches. Innate immunity is mediated by myeloid cells such as neutrophils, macrophages, and dendritic cells. These cells produce a rapid and nonspecific response through phagocytosis, cytokine production, and complement activation, as well as activating adaptive immunity. Specific adaptive immunity is activated by antigen presentation by antigen presenting cells (APCs) and the cytokine microenvironment, and is mainly mediated by the cellular functions of T cells and the production of antibodies by B cells. Unlike most cell types, immune cells regulate their lamin A/C protein expression relatively rapidly to exert their functions, with expression increasing in macrophages, reducing in neutrophils, and increasing transiently in T cells. In this review, we discuss and summarize studies that have addressed the role played by lamin A/C in the functions of innate and adaptive immune cells in the context of human inflammatory and autoimmune diseases, pathogen infections, and cancer.
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Affiliation(s)
- Angela Saez
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Pozuelo de Alarcón, Pozuelo de Alarcón, 28223 Madrid, Spain;
| | - Beatriz Herrero-Fernandez
- LamImSys Lab, Instituto de Investigación Hospital 12 de Octubre (imas12), 28041 Madrid, Spain; (B.H.-F.); (R.G.-B.); (B.S.-C.)
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
| | - Raquel Gomez-Bris
- LamImSys Lab, Instituto de Investigación Hospital 12 de Octubre (imas12), 28041 Madrid, Spain; (B.H.-F.); (R.G.-B.); (B.S.-C.)
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
| | - Beatriz Somovilla-Crespo
- LamImSys Lab, Instituto de Investigación Hospital 12 de Octubre (imas12), 28041 Madrid, Spain; (B.H.-F.); (R.G.-B.); (B.S.-C.)
| | - Cristina Rius
- Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid (UEM), Villaviciosa de Odón, 28670 Madrid, Spain;
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, 28029 Madrid, Spain
| | - Jose M. Gonzalez-Granado
- LamImSys Lab, Instituto de Investigación Hospital 12 de Octubre (imas12), 28041 Madrid, Spain; (B.H.-F.); (R.G.-B.); (B.S.-C.)
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, 28029 Madrid, Spain
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Cui Z, Lin Y, Liu Y, Cao L, Cui L. Retinoic Acid-Platinum (II) Complex [RT-Pt(II)] Protects Against Rheumatoid Arthritis in Mice via MEK/Nuclear Factor kappa B (NF-κB) Pathway Downregulation. Med Sci Monit 2020; 26:e924787. [PMID: 32741960 PMCID: PMC7418485 DOI: 10.12659/msm.924787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Rheumatoid arthritis (RA) is an inflammatory disorder that is present in approximately 1% of the world’s population. This study was aimed to investigate the effect of retinoic acid-platinum (II) complex [RT-Pt(II)] on rheumatoid arthritis (RA) and to explore the mechanism involved. Material/Methods MH7A cell viability was determined by MTT assay and apoptosis was assessed using FACSCalibur flow cytometry. RT-PCR and Western blot assays were used for assessment of mRNA and proteins levels. Results Treatment of rheumatoid arthritis with RT-Pt(II) significantly reduced the levels of IL-1β, IL-6, IL-8, MMP-1, and MMP-13 in synovial fluid of mice in a dose-dependent manner. The expression of iNOS and COX-2 mRNA and protein in rheumatoid arthritis rats was also significantly inhibited by treatment with RT-Pt(II). The TNF-α-induced proliferation of MH7A cells was alleviated by RT-Pt(II) treatment in a concentration-dependent manner. Moreover, RT-Pt(II) treatment induced apoptosis and caused arrest of cell cycle in MH7A cells. The activation of MEK/NF-κB pathway was downregulated by RT-Pt(II) treatment in MH7A cells. Conclusions In summary, the present study demonstrated that RT-Pt(II) inhibits TNF-α-induced inflammatory response, suppresses cell viability, and induces apoptosis in rheumatoid arthritis synovial cells. Moreover, RT-Pt(II) exhibited its effect through targeting the MEK/NF-κB pathway. Therefore, RT-Pt(II) can be used for the development of treatments for rheumatoid arthritis.
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Affiliation(s)
- Ziqiang Cui
- Department of Pediatric Orthopedics, Shaanxi Friendship Hospital, Xi'an, Shaanxi, China (mainland)
| | - Yaping Lin
- Department of Orthopedics, Xi'an Union Hospital, Xi'an, Shaanxi, China (mainland)
| | - Yuhong Liu
- Department of Immune Rheumatology, Yan'an University Affiliated Hospital, Yan'an, Shaanxi, China (mainland)
| | - Ling Cao
- Department of Immune Rheumatology, Yan'an University Affiliated Hospital, Yan'an, Shaanxi, China (mainland)
| | - Li Cui
- Department of Immune Rheumatology, Yan'an University Affiliated Hospital, Yan'an, Shaanxi, China (mainland)
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Moré DD, Cardoso FF, Mudadu MA, Malagó-Jr W, Gulias-Gomes CC, Sollero BP, Ibelli AMG, Coutinho LL, Regitano LCA. Network analysis uncovers putative genes affecting resistance to tick infestation in Braford cattle skin. BMC Genomics 2019; 20:998. [PMID: 31856720 PMCID: PMC6923859 DOI: 10.1186/s12864-019-6360-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 12/01/2019] [Indexed: 12/13/2022] Open
Abstract
Background Genetic resistance in cattle is considered a suitable way to control tick burden and its consequent losses for livestock production. Exploring tick-resistant (R) and tick-susceptible (S) hosts, we investigated the genetic mechanisms underlying the variation of Braford resistance to tick infestation. Skin biopsies from four-times-artificially infested R (n = 20) and S (n = 19) hosts, obtained before the first and 24 h after the fourth tick infestation were submitted to RNA-Sequencing. Differential gene expression, functional enrichment, and network analysis were performed to identify genetic pathways and transcription factors (TFs) affecting host resistance. Results Intergroup comparisons of hosts before (Rpre vs. Spre) and after (Rpost vs. Spost) tick infestation found 51 differentially expressed genes (DEGs), of which almost all presented high variation (TopDEGs), and 38 were redundant genes. Gene expression was consistently different between R and S hosts, suggesting the existence of specific anti-tick mechanisms. In the intragroup comparisons, Rpost vs. Rpre and Spost vs. Spre, we found more than two thousand DEGs in response to tick infestation in both resistance groups. Redundant and non-redundant TopDEGs with potential anti-tick functions suggested a role in the development of different levels of resistance within the same breed. Leukocyte chemotaxis was over-represented in both hosts, whereas skin degradation and remodeling were only found in TopDEGs from R hosts. Also, these genes indicated the participation of cytokines, such as IL6 and IL22, and the activation of Wingless (WNT)-signaling pathway. A central gene of this pathway, WNT7A, was consistently modulated when hosts were compared. Moreover, the findings based on a genome-wide association study (GWAS) corroborate the prediction of the WNT-signaling pathway as a candidate mechanism of resistance. The regulation of immune response was the most relevant pathway predicted for S hosts. Members of Ap1 and NF-kB families were the most relevant TFs predicted for R and S, respectively. Conclusion This work provides indications of genetic mechanisms presented by Braford cattle with different levels of resistance in response to tick infestation, contributing to the search of candidate genes for tick resistance in bovine.
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Affiliation(s)
| | - Fernando F Cardoso
- EMBRAPA Pecuária Sul, Bagé, Rio Grande do Sul, Brazil.,Federal University of Pelotas, Capão do Leão, Rio Grande do Sul, Brazil
| | | | | | | | | | | | - Luiz L Coutinho
- Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
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21
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Abstract
Many options now exist for constructing oral vaccines which, in experimental systems, have shown themselves to be able to generate highly effective immunity against infectious diseases. Their suitability for implementation in clinical practice, however, for prevention of outbreaks, particularly in low- and middle-income countries (LMIC), is not always guaranteed, because of factors such as cost, logistics and cultural and environmental conditions. This brief overview provides a summary of the various approaches which can be adopted, and evaluates them from a pharmaceutical point, taking into account potential regulatory issues, expense, manufacturing complexity, etc., all of which can determine whether a vaccine approach will be successful in the late stages of development. Attention is also drawn to problems arising from inadequate diet, which impacts upon success in stimulating effective immunity, and identifies the use of lipid-based carriers as a way to counteract the problem of nutritional deficiencies in vaccination campaigns.
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Affiliation(s)
- R. R. C. New
- Middlesex UniversityHendon, LondonUK
- Vaxcine (UK) Limited, London Bioscience Innovation CentreLondonUK
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22
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Toribio‐Fernández R, Herrero‐Fernandez B, Zorita V, López JA, Vázquez J, Criado G, Pablos JL, Collas P, Sánchez‐Madrid F, Andrés V, Gonzalez‐Granado JM. Lamin A/C deficiency in CD4
+
T‐cells enhances regulatory T‐cells and prevents inflammatory bowel disease. J Pathol 2019; 249:509-522. [DOI: 10.1002/path.5332] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 07/15/2019] [Accepted: 07/29/2019] [Indexed: 12/19/2022]
Affiliation(s)
| | | | - Virginia Zorita
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
| | - Juan A López
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
- CIBER de Enfermedades Cardiovasculares Madrid Spain
| | - Jesús Vázquez
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
- CIBER de Enfermedades Cardiovasculares Madrid Spain
| | - Gabriel Criado
- Instituto de Investigación Hospital 12 de Octubre (imas12) Madrid Spain
| | - Jose L Pablos
- Instituto de Investigación Hospital 12 de Octubre (imas12) Madrid Spain
| | - Philippe Collas
- Institute of Basic Medical SciencesUniversity of Oslo Oslo Norway
| | - Francisco Sánchez‐Madrid
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
- CIBER de Enfermedades Cardiovasculares Madrid Spain
- Servicio de Inmunología, Hospital de la PrincesaInstituto de Investigación Sanitaria La Princesa (IIS Princesa) Madrid Spain
| | - Vicente Andrés
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
- CIBER de Enfermedades Cardiovasculares Madrid Spain
| | - Jose M Gonzalez‐Granado
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid Spain
- Instituto de Investigación Hospital 12 de Octubre (imas12) Madrid Spain
- CIBER de Enfermedades Cardiovasculares Madrid Spain
- Departamento de Fisiología, Facultad de MedicinaUniversidad Autónoma de Madrid (UAM) Madrid Spain
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23
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Scalf CS, Chariker JH, Rouchka EC, Ashley NT. Transcriptomic analysis of immune response to bacterial lipopolysaccharide in zebra finch (Taeniopygia guttata). BMC Genomics 2019; 20:647. [PMID: 31412766 PMCID: PMC6693190 DOI: 10.1186/s12864-019-6016-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 08/05/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Despite the convergence of rapid technological advances in genomics and the maturing field of ecoimmunology, our understanding of the genes that regulate immunity in wild populations is still nascent. Previous work to assess immune function has relied upon relatively crude measures of immunocompetence. However, with next-generation RNA-sequencing, it is now possible to create a profile of gene expression in response to an immune challenge. In this study, captive zebra finch (Taeniopygia guttata; adult males) were challenged with bacterial lipopolysaccharide (LPS) or vehicle to stimulate the innate immune system. 2 hours after injection, birds were euthanized and hypothalami, spleen, and red blood cells (RBCs) were collected. Taking advantage of the fully sequenced genome of zebra finch, total RNA was isolated, sequenced, and partially annotated in these tissue/cells. RESULTS In hypothalamus, there were 707 significantly upregulated transcripts, as well as 564 and 144 in the spleen and RBCs, respectively, relative to controls. Also, 155 transcripts in the hypothalamus, 606 in the spleen, and 61 in the RBCs were significantly downregulated. More specifically, a number of immunity-related transcripts (e.g., IL-1β, RSAD2, SOCS3) were upregulated among tissues/cells. Additionally, transcripts involved in metabolic processes (APOD, LRAT, RBP4) were downregulated. CONCLUSIONS These results suggest a potential trade-off in expression of genes that regulate immunity and metabolism in birds challenged with LPS. This finding is consistent with a hypothermic response to LPS treatment in small birds. Unlike mammals, birds have nucleated RBCs, and these results support a novel transcriptomic response of avian RBCs to immune challenge.
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Affiliation(s)
- Cassandra S Scalf
- Department of Biology, Western Kentucky University, Bowling Green, KY, 42101-1800, USA
| | - Julia H Chariker
- Department of Neuroscience Training, University of Louisville, Louisville, KY, 40292, USA
| | - Eric C Rouchka
- Department of Computer Engineering and Computer Science, University of Louisville, Louisville, KY, 40292, USA
| | - Noah T Ashley
- Department of Biology, Western Kentucky University, Bowling Green, KY, 42101-1800, USA.
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24
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Miller ED, Dziedzic A, Saluk-Bijak J, Bijak M. A Review of Various Antioxidant Compounds and their Potential Utility as Complementary Therapy in Multiple Sclerosis. Nutrients 2019; 11:nu11071528. [PMID: 31284389 PMCID: PMC6682972 DOI: 10.3390/nu11071528] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 02/06/2023] Open
Abstract
Multiple sclerosis (MS) is a complex disease of the central nervous system (CNS). The etiology of this multifactorial disease has not been clearly defined. Conventional medical treatment of MS has progressed, but is still based on symptomatic treatment. One of the key factors in the pathogenesis of MS is oxidative stress, enhancing inflammation and neurodegeneration. In MS, both reactive oxygen and nitrogen species are formed in the CNS mainly by activated macrophages and microglia structures, which can lead to demyelination and axon disruption. The course of MS is associated with the secretion of many inflammatory and oxidative stress mediators, including cytokines (IL-1b, IL-6, IL-17, TNF-α, INF-γ) and chemokines (MIP-1a, MCP-1, IP10). The early stage of MS (RRMS) lasts about 10 years, and is dominated by inflammatory processes, whereas the chronic stage is associated with neurodegenerative axon and neuron loss. Since oxidative damage has been known to be involved in inflammatory and autoimmune-mediated processes, antioxidant therapy could contribute to the reduction or even prevention of the progression of MS. Further research is needed in order to establish new aims for novel treatment and provide possible benefits to MS patients. The present review examines the roles of oxidative stress and non-pharmacological anti-oxidative therapies in MS.
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Affiliation(s)
- Elzbieta Dorota Miller
- Department of Physical Medicine, Medical University of Lodz, Pl. Hallera 1, 90-647 Lodz, Poland
- Neurorehabilitation Ward, General Hospital no III, Milionowa 14, 90-001 Lodz, Poland
| | - Angela Dziedzic
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Joanna Saluk-Bijak
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Michal Bijak
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
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25
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Lu K, Bao Q, Wang D, Ning Y, Xie X, Zhou M, Zhou L, Zeng X, Shan J, Li Y. Effects of All-Trans Retinoic Acid on Lipopolysaccharide-Induced Synovial Explant. J Nutr Sci Vitaminol (Tokyo) 2019; 65:8-18. [PMID: 30814416 DOI: 10.3177/jnsv.65.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The present study was conducted to assess the effect of all-trans retinoic acid (ATRA) on synovial explants from rats with rheumatoid arthritis (RA) induced by lipopolysaccharides (LPS). In our study, synovial membranes were excised from the knees of healthy adult Wistar female rats under sterile conditions. We first investigated the synoviums incubated in a control medium or in a medium containing 10 μg/mL LPS, each for 24, 48, and 72 h (LPS-experiment). The changes in inflammatory response from the synoviums were observed at different culture times. Then, we assessed the synoviums exposed to different ATRA concentrations for 24 h (ATRA-experiment). The controls (blank, model group, and solvent groups) were set up. The effects of ATRA on synovitis were evaluated by measuring the production of cytokines, and nitric oxide (NO) and the expression of cartilage damage related proteases. In the LPS-experiment, LPS contributed to the release of interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), and matrix metalloproteinase-9 (MMP-9) in synovial explants. Importantly, LPS did not cause a significant pathological damage. The inflammatory response observed in this model was significant for 24 h, suggesting that LPS-induced synovial explants were successfully established. In the ATRA-experiment, ATRA suppressed the expression of IL-6, TNF-α, NO, a disintegrin and metalloprotease with thrombospondin motifs-4 (ADAMTS-4), MMP-3, and MMP-9. Taken together, ATRA exhibited inhibitory effects on LPS-induced synovial immune inflammatory response stimulated by the regulation of inflammatory mediators and cartilage damage related proteases in synovial explants, demonstrating a potential protective effect on synovitis and joint destruction in the patients with RA.
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Affiliation(s)
- Kuiqing Lu
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University
| | - Qilin Bao
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University
| | - Dan Wang
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University
| | - Yanhua Ning
- Department of Community Care, Nursing School, Ningxia Medical University
| | | | - Mingming Zhou
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University
| | - Linhua Zhou
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University
| | - Xiang Zeng
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University
| | - Jingyan Shan
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University
| | - Yun Li
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University.,West China School of Public Health and Healthy Food Evaluation Research Center, Sichuan University
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26
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Sprouse ML, Bates NA, Felix KM, Wu HJJ. Impact of gut microbiota on gut-distal autoimmunity: a focus on T cells. Immunology 2019; 156:305-318. [PMID: 30560993 DOI: 10.1111/imm.13037] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/07/2018] [Accepted: 11/25/2018] [Indexed: 12/14/2022] Open
Abstract
The immune system is essential for maintaining a delicate balance between eliminating pathogens and maintaining tolerance to self-tissues to avoid autoimmunity. An enormous and complex community of gut microbiota provides essential health benefits to the host, particularly by regulating immune homeostasis. Many of the metabolites derived from commensals can impact host health by directly regulating the immune system. Many autoimmune diseases arise from an imbalance between pathogenic effector T cells and regulatory T (Treg) cells. Recent interest has emerged in understanding how cross-talk between gut microbiota and the host immune system promotes autoimmune development by controlling the differentiation and plasticity of T helper and Treg cells. At the molecular level, our recent study, along with others, demonstrates that asymptomatic colonization by commensal bacteria in the gut is capable of triggering autoimmune disease by molecular mimicking self-antigen and skewing the expression of dual T-cell receptors on T cells. Dysbiosis, an imbalance of the gut microbiota, is involved in autoimmune development in both mice and humans. Although it is well known that dysbiosis can impact diseases occurring within the gut, growing literature suggests that dysbiosis also causes the development of gut-distal/non-gut autoimmunity. In this review, we discuss recent advances in understanding the potential molecular mechanisms whereby gut microbiota induces autoimmunity, and the evidence that the gut microbiota triggers gut-distal autoimmune diseases.
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Affiliation(s)
- Maran L Sprouse
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Nicholas A Bates
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Krysta M Felix
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Hsin-Jung Joyce Wu
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA.,Arizona Arthritis Center, College of Medicine, University of Arizona, Tucson, AZ, USA
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27
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Zai K, Ishihara N, Oguchi H, Hirota M, Kishimura A, Mori T, Hase K, Katayama Y. Regulation of inflammatory response of macrophages and induction of regulatory T cells by using retinoic acid-loaded nanostructured lipid carrier. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1-11. [PMID: 29943678 DOI: 10.1080/09205063.2018.1493671] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Immunomodulatory function of all-trans retinoic acid (ATRA) has been gathering much attention for the therapy of autoimmune diseases. ATRA is a chemically unstable molecule which requires proper formulation for targeted delivery. Here we examined nanostructured lipid carrier (NLC) for the formulation of ATRA. NLC is a representative nanoparticle formulation especially suited for oral delivery. We established the preparation procedures of ATRA-containing NLC (NLC-RA) which minimizes the degradation of ATRA during the preparation process. NLC-RA thus obtained was taken up by macrophages and induced anti-inflammatory response via suppressing NF-κB signaling as well as via enhancing the production of anti-inflammatory cytokines. Moreover, NLC-RA enhanced differentiation of naïve T cells to regulatory T cells in the co-culture system with dendritic cells. These results suggest that NLC-RA is a promising alternative therapy for the autoimmune diseases especially intestinal bowel disease.
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Affiliation(s)
- Khadijah Zai
- a Department of Applied Chemistry, Faculty of Engineering , Kyushu University , Fukuoka , Japan
| | - Narumi Ishihara
- b Division of Biochemistry, Faculty of Pharmacy , Keio University , Tokyo , Japan
| | - Hiroyuki Oguchi
- b Division of Biochemistry, Faculty of Pharmacy , Keio University , Tokyo , Japan
| | - Masato Hirota
- b Division of Biochemistry, Faculty of Pharmacy , Keio University , Tokyo , Japan
| | - Akihiro Kishimura
- a Department of Applied Chemistry, Faculty of Engineering , Kyushu University , Fukuoka , Japan.,c Graduate School of Systems Life Sciences , Kyushu University , Fukuoka , Japan.,d Center for Future Chemistry, Kyushu University , Fukuoka , Japan.,e International Research Center for Molecular Systems, Kyushu University , Fukuoka , Japan
| | - Takeshi Mori
- a Department of Applied Chemistry, Faculty of Engineering , Kyushu University , Fukuoka , Japan.,c Graduate School of Systems Life Sciences , Kyushu University , Fukuoka , Japan.,d Center for Future Chemistry, Kyushu University , Fukuoka , Japan
| | - Koji Hase
- b Division of Biochemistry, Faculty of Pharmacy , Keio University , Tokyo , Japan.,f Division of Mucosal Barrierology , International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science the University of Tokyo , Tokyo Japan
| | - Yoshiki Katayama
- a Department of Applied Chemistry, Faculty of Engineering , Kyushu University , Fukuoka , Japan.,c Graduate School of Systems Life Sciences , Kyushu University , Fukuoka , Japan.,d Center for Future Chemistry, Kyushu University , Fukuoka , Japan.,e International Research Center for Molecular Systems, Kyushu University , Fukuoka , Japan.,g Centre for Advanced Medicine Innovation, Kyushu University , Fukuoka , Japan.,h Department of Biomedical Engineering , Chung Yuan Christian University , Chung Li , ROC , Taiwan
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28
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Varela-López A, Navarro-Hortal MD, Giampieri F, Bullón P, Battino M, Quiles JL. Nutraceuticals in Periodontal Health: A Systematic Review on the Role of Vitamins in Periodontal Health Maintenance. Molecules 2018; 23:E1226. [PMID: 29783781 PMCID: PMC6099579 DOI: 10.3390/molecules23051226] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/16/2018] [Accepted: 05/17/2018] [Indexed: 12/31/2022] Open
Abstract
Periodontal disease, a relevant public health problem worldwide, is generally considered a common pathology of elderly people. In this respect, there is agreement about that nutritional status may be a modifying factor in the progression and healing of the periodontal tissues. Vitamins have been recommended as nutraceuticals for prevention and treatment of some pathological conditions, such as cardiovascular diseases, obesity or cancer. Thus, a systematic approach to determining how the different vitamin type could ameliorate periodontal risks or improve periodontal health is necessary to further the understanding of the potential benefits and risks of vitamins supplementation use. For this, a systematic review of English-written literature in PubMed until February 2018, which included both human and animal research on the relationship of each vitamin with periodontal disease, was conducted. Among all the analyzed vitamins those with antioxidant capacity and effects on immune system seem to be useful for prevention or improvement of periodontal disease, as well as those implicated in bone metabolism. In the first case, there are quite information in favor of various vitamins, mainly vitamin C, that is the most studied. In the second case, vitamin D seems to have the most relevant role.
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Affiliation(s)
- Alfonso Varela-López
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, 60131 Ancona, Italy.
| | - María D Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology "Jose Mataix", Biomedical Research Center, University of Granada, Avda. Conocimiento s/n, 18100 Armilla, Granada, Spain.
| | - Francesca Giampieri
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, 60131 Ancona, Italy.
| | - Pedro Bullón
- Department of Stomalogy, Dental School, University of Sevilla, C/Avicena s.n., 41009 Sevilla, Spain.
| | - Maurizio Battino
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, 60131 Ancona, Italy.
| | - José L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "Jose Mataix", Biomedical Research Center, University of Granada, Avda. Conocimiento s/n, 18100 Armilla, Granada, Spain.
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29
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All-Trans Retinoic Acid Induces CD4+CD25+FOXP3+ Regulatory T Cells by Increasing FOXP3 Demethylation in Systemic Sclerosis CD4+ T Cells. J Immunol Res 2018; 2018:8658156. [PMID: 29854846 PMCID: PMC5952589 DOI: 10.1155/2018/8658156] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/03/2018] [Accepted: 02/18/2018] [Indexed: 12/21/2022] Open
Abstract
Background Retinoic acid (RA) is an active metabolite of vitamin A and has been reported to improve the clinical symptoms of patients with systemic sclerosis (SSc). However, the mechanism of RA in the prevention of SSc remains unclear. Regulatory T cells (Tregs) are a subpopulation of T cells with immunosuppressive activity. The quantitative and functional defects of Tregs may mediate the immune dysfunction in SSc. The addition of all-trans retinoic acid (ATRA) to human naïve CD4+ cells could promote the maturation of Tregs and increase the stable expression of Foxp3. In this study, we explored the role of RA on Tregs in SSc CD4+ T cells and its possible epigenetic mechanisms, so as to further understand the mechanisms of RA on SSc. Methods CD4+ T cells were isolated from peripheral blood of SSc and treated with or without ATRA and/or transforming growth factor-β (TGF-β). The percentage of CD4+CD25+FOXP3+ Tregs was counted by flow cytometry. FOXP3 mRNA and protein levels were measured by quantitative real-time reverse transcriptase polymerase chain reaction and Western blotting, respectively. Bisulfite sequencing was performed to determine the methylation status of the FOXP3 proximal promoter sequences. Results The expression of Tregs and FOXP3 in CD4+ T cells from patients with SSc increased in response to ATRA. Moreover, combined stimulation with ATRA and TGF-β resulted in the enhancement of these effects. Further studies revealed that stimulation with ATRA increased the expression of FOXP3 in SSc CD4+ T cells by downregulating FOXP3 promoter methylation levels. Conclusions ATRA acts as an inducer of Treg response in SSc CD4+ T cells via demethylation of the FOXP3 promoter and activation of FOXP3 expression. This may be one of the molecular mechanisms for ATRA, and therefore, RA can be used for the treatment of SSc.
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30
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Glyburide and retinoic acid synergize to promote wound healing by anti-inflammation and RIP140 degradation. Sci Rep 2018; 8:834. [PMID: 29339732 PMCID: PMC5770422 DOI: 10.1038/s41598-017-18785-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 12/17/2017] [Indexed: 11/13/2022] Open
Abstract
Chronic inflammation underlies the development of metabolic diseases and individuals with metabolic disease often also suffer from delayed wound healing due to prolonged inflammation. Resolving inflammation provides a therapeutic strategy in treating metabolic diseases. We previously showed that during an anti-inflammatory response when macrophages were alternatively (M2) polarized, retinoic acid (RA) dramatically activated arginase 1 gene (Arg1), a gene crucial for wound healing. Here we report that a widely used sulfonylurea drug for type 2 diabetes mellitus (T2DM), glyburide, enhances the anti-inflammatory response and synergizes with RA to promote wound healing. Our data also delineate the mechanism underlying glyburide’s anti-inflammatory effect, which is to stimulate the degradation of a pro-inflammatory regulator, Receptor Interacting Protein 140 (RIP140), by activating Ca2+/calmodulin-dependent protein kinase II (CamKII) that triggers specific ubiquitination of RIP140 for degradation. By stimulating RIP140 degradation, glyburide enhances M2 polarization and anti-inflammation. Using a high-fat diet induced obesity mouse model to monitor wound healing effects, we provide a proof-of-concept for a therapeutic strategy that combining glyburide and RA can significantly improve wound healing. Mechanistically, this study uncovers a new mechanism of action of glyburide and a new pathway modulating RIP140 protein degradation that is mediated by CamKII signaling.
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31
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Felix KM, Tahsin S, Wu HJJ. Host-microbiota interplay in mediating immune disorders. Ann N Y Acad Sci 2017; 1417:57-70. [PMID: 28984367 DOI: 10.1111/nyas.13508] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/29/2017] [Accepted: 09/06/2017] [Indexed: 12/14/2022]
Abstract
To maintain health, the immune system must maintain a delicate balance between eliminating invading pathogens and avoiding immune disorders such as autoimmunity and allergies. The gut microbiota provide essential health benefits to the host, particularly by regulating immune homeostasis. Dysbiosis, an alteration and imbalance of the gut microbiota, is associated with the development of several autoimmune diseases in both mice and humans. In this review, we discuss recent advances in understanding how certain factors, such as age and gender, affect the gut microbiota, which in turn can influence the development of autoimmune diseases. The age factor in microbiota-dependent immune disorders indicates a window of opportunity for future diagnostic and therapeutic approaches. We also discuss unique commensal bacteria with strong immunomodulatory activity. Finally, we provide an overview of the potential molecular mechanisms whereby gut microbiota induce autoimmunity, as well as the evidence that gut microbiota trigger extraintestinal diseases by inducing the migration of gut-derived immune cells. Elucidating the interaction of gut microbiota and the host immune system will help us understand the pathogenesis of immune disorders, and provide us with new foundations to develop novel immuno- or microbe-targeted therapies.
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Affiliation(s)
- Krysta M Felix
- Department of Immunobiology, University of Arizona, Tucson, Arizona
| | - Shekha Tahsin
- Department of Immunobiology, University of Arizona, Tucson, Arizona
| | - Hsin-Jung Joyce Wu
- Department of Immunobiology, University of Arizona, Tucson, Arizona.,Arizona Arthritis Center, College of Medicine, University of Arizona, Tucson, Arizona
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32
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Lin YW, Wei LN. Innate immunity orchestrates adipose tissue homeostasis. Horm Mol Biol Clin Investig 2017; 31:hmbci-2017-0013. [PMID: 28672736 DOI: 10.1515/hmbci-2017-0013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 05/01/2017] [Indexed: 02/07/2023]
Abstract
Obesity is strongly associated with multiple diseases including insulin resistance, type 2 diabetes, cardiovascular diseases, fatty liver disease, neurodegenerative diseases and cancers, etc. Adipose tissue (AT), mainly brown AT (BAT) and white AT (WAT), is an important metabolic and endocrine organ that maintains whole-body homeostasis. BAT contributes to non-shivering thermogenesis in a cold environment; WAT stores energy and produces adipokines that fine-tune metabolic and inflammatory responses. Obesity is often characterized by over-expansion and inflammation of WAT where inflammatory cells/mediators are abundant, especially pro-inflammatory (M1) macrophages, resulting in chronic low-grade inflammation and leading to insulin resistance and metabolic complications. Macrophages constitute the major component of innate immunity and can be activated as a M1 or M2 (anti-inflammatory) phenotype in response to environmental stimuli. Polarized M1 macrophage causes AT inflammation, whereas polarized M2 macrophage promotes WAT remodeling into the BAT phenotype, also known as WAT browning/beiging, which enhances insulin sensitivity and metabolic health. This review will discuss the regulation of AT homeostasis in relation to innate immunity.
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Affiliation(s)
- Yi-Wei Lin
- Department of Pharmacology, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Li-Na Wei
- Department of Pharmacology, University of Minnesota Medical School, 612 Jackson Hall, 321 Church St. SE., Minneapolis, MN 55455, USA, Phone: 612-625-9402, Fax: 612-625-8408
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Agrawal A. Dendritic Cell-Airway Epithelial Cell Cross-Talk Changes with Age and Contributes to Chronic Lung Inflammatory Diseases in the Elderly. Int J Mol Sci 2017; 18:ijms18061206. [PMID: 28587289 PMCID: PMC5486029 DOI: 10.3390/ijms18061206] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 05/15/2017] [Accepted: 06/01/2017] [Indexed: 02/07/2023] Open
Abstract
Age-associated dysregulated immune and inflammatory responses are one of the major factors responsible for the prevalence of chronic respiratory diseases in the older population. Pulmonary dendritic cells (DCs) are present below the airway epithelial cells (AECs) and are critical in initiating effective immune responses to harmful pathogens while maintaining tolerance against harmless antigens. The interaction between DCs and AECs plays a crucial role in lung immunity at homeostasis and during infections. The functions of both DCs and AECs are impacted with age. The present report reviews how the potential crosstalk between pulmonary DCs and AECs is dysregulated in the elderly impairing the capacity to maintain tolerance at the respiratory surfaces, which results in severe and chronic respiratory inflammatory diseases. We also discuss how such DC-AECs crosstalk will provide insight into the mechanisms underlying the increased susceptibility of the elderly to pulmonary inflammatory diseases.
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Affiliation(s)
- Anshu Agrawal
- Division of Basic and Clinical Immunology, Department of Medicine, University of California Irvine, Irvine, CA 92697, USA.
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Arroul-Lammali A, Rahal F, Chetouane R, Djeraba Z, Medjeber O, Ladjouze-Rezig A, Touil-Boukoffa C. Ex vivo all-trans retinoic acid modulates NO production and regulates IL-6 effect during rheumatoid arthritis: a study in Algerian patients. Immunopharmacol Immunotoxicol 2017; 39:87-96. [PMID: 28211306 DOI: 10.1080/08923973.2017.1285919] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease. The pathophysiology of RA implicates several mediators such as nitric oxide (NO) and cytokines such as interleukin-6 (IL-6), which is deeply involved in the main characteristics of RA. Furthermore, all-trans retinoic acid (ATRA) is an active vitamin A derivative well-known to have diverse immunomodulatory actions. In our study, we investigated first, the ex vivo immunomodulatory potential of ATRA on NO pathway by peripheral blood mononuclear cells (PBMCs) from Algerian RA patients. Then, we assessed the possible regulatory effect of ATRA on NO production induced by IL-6. PBMCs isolated from active and inactive RA patients and healthy controls were cultured with different concentrations of IL-6 or/with ATRA. NO production was assessed using the Griess method. Inducible nitric oxide synthase expression and NF-κB activity were analyzed by immunofluorescence test. Our results revealed a high NO production during active RA. We noticed that while IL-6 induced a high NO production and iNOS expression, ATRA downregulated both. ATRA also inhibited nuclear NF-κB translocation. Interestingly, it seems that NO production mediated by IL-6 on PBMCs of RA patients is downregulated by ATRA. Taken together, our results highlight the immunomodulatory effect of ATRA on NO pathway in RA patients and its possible role in regulating IL-6-mediated NO production. All these findings suggest its potential therapeutic role during RA.
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Affiliation(s)
- Amina Arroul-Lammali
- a Laboratory of Cellular and Molecular Biology (LBCM), Cytokines and NO Synthases Team, Faculty of Biological Sciences , USTHB (University of Sciences and Technology) , Algiers , Algeria
| | - Fadia Rahal
- b Rheumatology Department , Ben aknoun hospital EHS , Algiers , Algeria
| | - Radia Chetouane
- b Rheumatology Department , Ben aknoun hospital EHS , Algiers , Algeria
| | - Zineb Djeraba
- a Laboratory of Cellular and Molecular Biology (LBCM), Cytokines and NO Synthases Team, Faculty of Biological Sciences , USTHB (University of Sciences and Technology) , Algiers , Algeria
| | - Oussama Medjeber
- a Laboratory of Cellular and Molecular Biology (LBCM), Cytokines and NO Synthases Team, Faculty of Biological Sciences , USTHB (University of Sciences and Technology) , Algiers , Algeria
| | | | - Chafia Touil-Boukoffa
- a Laboratory of Cellular and Molecular Biology (LBCM), Cytokines and NO Synthases Team, Faculty of Biological Sciences , USTHB (University of Sciences and Technology) , Algiers , Algeria
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Naskar D, Teng F, Felix KM, Bradley CP, Wu HJJ. Synthetic Retinoid AM80 Ameliorates Lung and Arthritic Autoimmune Responses by Inhibiting T Follicular Helper and Th17 Cell Responses. THE JOURNAL OF IMMUNOLOGY 2017; 198:1855-1864. [PMID: 28130500 DOI: 10.4049/jimmunol.1601776] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 01/03/2017] [Indexed: 12/16/2022]
Abstract
Rheumatoid arthritis is an autoimmune disorder that affects the joints and other organs. Pulmonary complications contribute significantly to rheumatoid arthritis mortality. Retinoic acid and its synthetic compound AM80 play roles in immunoregulation but their effect on mucosal autoimmunity remains largely unknown. T follicular helper (Tfh) and Th17 cells are known to promote inflammation and autoantibody production. Using the K/BxN autoimmune arthritis model, we elucidate a novel mechanism whereby oral AM80 administration suppressed lung mucosa-associated Tfh and autoantibody responses by increasing the gut-homing α4β7 integrin expression on Tfh cells. This diverted Tfh cells from systemic (non-gut) inflamed sites such as the lung into the gut-associated lymphoid tissues, Peyer's patches, and thus reduced the systemic autoantibodies. AM80 also inhibited the lung Th17 response. AM80's effect in the lungs was readily applied to the joints as AM80 also inhibited Tfh and Th17 responses in the spleen, the major autoantibody producing site known to correlate with K/BxN arthritis severity. Finally, we used anti-β7 treatment as an alternative approach, demonstrating that manipulating T cell migration between the gut and systemic sites alters the systemic disease outcome. The β7 blockade prevented both Tfh and Th17 cells from entering the non-immunopathogenic site, the gut, and retained these T effector cells in the systemic sites, leading to augmented arthritis. These data suggest a dual beneficial effect of AM80, targeting both Tfh and Th17 cells, and warrant strict safety monitoring of gut-homing perturbing agents used in treating intestinal inflammation.
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Affiliation(s)
- Debdut Naskar
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719; and
| | - Fei Teng
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719; and
| | - Krysta M Felix
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719; and
| | - C Pierce Bradley
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719; and
| | - Hsin-Jung Joyce Wu
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719; and .,Arizona Arthritis Center, College of Medicine, University of Arizona, Tucson, AZ 85719
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Shiri-Shahsavar MR, Mirshafiee A, Parastouei K, Ebrahimi-Kalan A, Yekaninejad S, Soleymani F, Chahardoli R, Mazaheri Nezhad Fard R, Saboor-Yaraghi AA. A Novel Combination of Docosahexaenoic Acid, All-Trans Retinoic Acid, and 1, 25-Dihydroxyvitamin D3 Reduces T-Bet Gene Expression, Serum Interferon Gamma, and Clinical Scores but Promotes PPARγ Gene Expression in Experimental Autoimmune Encephalomyelitis. J Mol Neurosci 2016; 60:498-508. [DOI: 10.1007/s12031-016-0834-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 08/30/2016] [Indexed: 12/19/2022]
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Tanumihardjo SA, Russell RM, Stephensen CB, Gannon BM, Craft NE, Haskell MJ, Lietz G, Schulze K, Raiten DJ. Biomarkers of Nutrition for Development (BOND)-Vitamin A Review. J Nutr 2016; 146:1816S-48S. [PMID: 27511929 PMCID: PMC4997277 DOI: 10.3945/jn.115.229708] [Citation(s) in RCA: 284] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 04/01/2016] [Accepted: 06/29/2016] [Indexed: 12/15/2022] Open
Abstract
The Biomarkers of Nutrition for Development (BOND) project is designed to provide evidence-informed advice to anyone with an interest in the role of nutrition in health. The BOND program provides information with regard to selection, use, and interpretation of biomarkers of nutrient exposure, status, function, and effect, which will be especially useful for readers who want to assess nutrient status. To accomplish this objective, expert panels are recruited to evaluate the literature and to draft comprehensive reports on the current state of the art with regard to specific nutrient biology and available biomarkers for assessing nutritional status at the individual and population levels. Phase I of the BOND project includes the evaluation of biomarkers for 6 nutrients: iodine, folate, zinc, iron, vitamin A, and vitamin B-12. This review of vitamin A is the current article in this series. Although the vitamin was discovered >100 y ago, vitamin A status assessment is not trivial. Serum retinol concentrations are under homeostatic control due in part to vitamin A's use in the body for growth and cellular differentiation and because of its toxic properties at high concentrations. Furthermore, serum retinol concentrations are depressed during infection and inflammation because retinol-binding protein (RBP) is a negative acute-phase reactant, which makes status assessment challenging. Thus, this review describes the clinical and functional indicators related to eye health and biochemical biomarkers of vitamin A status (i.e., serum retinol, RBP, breast-milk retinol, dose-response tests, isotope dilution methodology, and serum retinyl esters). These biomarkers are then related to liver vitamin A concentrations, which are usually considered the gold standard for vitamin A status. With regard to biomarkers, future research questions and gaps in our current understanding as well as limitations of the methods are described.
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Affiliation(s)
- Sherry A Tanumihardjo
- Interdepartmental Graduate Program in Nutritional Sciences, Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI
| | | | | | - Bryan M Gannon
- Interdepartmental Graduate Program in Nutritional Sciences, Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI
| | | | | | - Georg Lietz
- Newcastle University, Newcastle, United Kingdom
| | - Kerry Schulze
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD; and
| | - Daniel J Raiten
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD
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38
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The Molecular Mechanisms of Vitamin A Deficiency in Multiple Sclerosis. J Mol Neurosci 2016; 60:82-90. [DOI: 10.1007/s12031-016-0781-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 06/17/2016] [Indexed: 10/24/2022]
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The dual nature of retinoic acid in pemphigus and its therapeutic potential: Special focus on all-trans Retinoic Acid. Int Immunopharmacol 2016; 36:180-186. [PMID: 27156125 DOI: 10.1016/j.intimp.2016.04.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 04/17/2016] [Accepted: 04/20/2016] [Indexed: 01/13/2023]
Abstract
The efficient treatment of pemphigus with no certain side effect remained a controversial issue. Although there are various options for controlling disease severity, the majority of them may cause serious side effects. Retinoic acid (RA), an active metabolite converted from vitamin A, plays an active role in immune functions. Effects of RA, especially all-trans-Retinoic Acid (ATRA) on different types of cells involved in immune responses were analyzed in vitro and in vivo. RAs could affect the differentiation of T helper (Th) cells, B cells responses, stabilization of both natural regulatory T cells (nTregs) and regulatory B cells (Bregs) populations, and regulating the expression of critical genes in immune responses. The role of RA, based on major immune cells involved in pemphigus has not been addressed so far. In this study, we sought to determine the possible effects of RA, with a special focus on ATRA in pemphigus. All the evidences of ATRA effects on the immune system were collected and their association with the pemphigus was analyzed. According to the previous results, ATRA causes a decline in Th17 populations; increase in CD4+ induced regulatory T cells (iTregs), stabilization of nTregs, and promotion of suppressive B cells, which are critical in the improvement of pemphigus. Nevertheless, it also causes shifting of the Th1:Th2 balance toward Th2 cells, which is not favorable for pemphigus patients. In conclusion, ATRA acts via different ways in pemphigus. Due to increase in the suppressive function via iTregs, nTregs, and Bregs, it is suggested that patients with pemphigus may benefit from systemic ATRA therapy. To clarify this issue, further studies, such as clinical trials are needed.
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Gernand AD, Schulze KJ, Stewart CP, West KP, Christian P. Micronutrient deficiencies in pregnancy worldwide: health effects and prevention. Nat Rev Endocrinol 2016; 12:274-89. [PMID: 27032981 PMCID: PMC4927329 DOI: 10.1038/nrendo.2016.37] [Citation(s) in RCA: 323] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Micronutrients, vitamins and minerals accessible from the diet, are essential for biologic activity. Micronutrient status varies widely throughout pregnancy and across populations. Women in low-income countries often enter pregnancy malnourished, and the demands of gestation can exacerbate micronutrient deficiencies with health consequences for the fetus. Examples of efficacious single micronutrient interventions include folic acid to prevent neural tube defects, iodine to prevent cretinism, zinc to reduce risk of preterm birth, and iron to reduce the risk of low birth weight. Folic acid and vitamin D might also increase birth weight. While extensive mechanistic and association research links multiple antenatal micronutrients with plausible materno-fetal health advantages, hypothesized benefits have often been absent, minimal or unexpected in trials. These findings suggest a role for population context in determining health responses and filling extensive gaps in knowledge. Multiple micronutrient supplements reduce the risks of being born with low birth weight, small for gestational age or stillborn in undernourished settings, and justify micronutrient interventions with antenatal care. Measurable health effects of gestational micronutrient exposure might persist into childhood but few data exists on potential long-term benefits. In this Review, we discuss micronutrient intake recommendations, risks and consequences of deficiencies, and the effects of interventions with a particular emphasis on offspring.
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Affiliation(s)
- Alison D Gernand
- Department of Nutritional Sciences, The Pennsylvania State University, 110 Chandlee Laboratory, University Park, Pennsylvania 16802, USA
| | - Kerry J Schulze
- Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, Maryland 21205, USA
| | - Christine P Stewart
- Department of Nutrition, One Shields Avenue, University of California, Davis, California 95616, USA
| | - Keith P West
- Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, Maryland 21205, USA
| | - Parul Christian
- Center for Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, Maryland 21205, USA
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Wang J, Liu W, Marion C, Singh R, Andrews N, Lee CG, Elias JA, Dela Cruz CS. Regulation of Retinoic Acid Receptor Beta by Interleukin-15 in the Lung during Cigarette Smoking and Influenza Virus Infection. Am J Respir Cell Mol Biol 2016; 53:822-33. [PMID: 25923039 DOI: 10.1165/rcmb.2014-0448oc] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Virus-induced exacerbations often lead to further impairment of lung function in chronic obstructive pulmonary disease. IL-15 is critical in antiviral immune responses. Retinoic acid (RA) signaling plays an important role in tissue maintenance and repair, particularly in the lung. We studied RA signaling and its relation to IL-15 in the lung during cigarette smoke (CS) exposure and influenza virus infection. In vivo studies show that RA signaling is diminished by long-term CS exposure or influenza virus infection alone, which is further attenuated during infection after CS exposure. RA receptor β (RARβ) is specifically decreased in the lung of IL-15 transgenic (overexpression; IL-15Tg) mice, and a greater reduction in RARβ is found in these mice compared with wild-type (WT) mice after infection. RARβ is increased in IL-15 knockout (IL-15KO) mice compared with WT mice after infection, and the additive effect of CS and virus on RARβ down-regulation is diminished in IL-15KO mice. IL-15 receptor α (IL-15Rα) is increased and RARβ is significantly decreased in lung interstitial macrophages from IL-15Tg mice compared with WT mice. In vitro studies show that IL-15 down-regulates RARβ in macrophages via IL-15Rα signaling during influenza virus infection. These studies suggest that RA signaling is significantly diminished in the lung by CS exposure and influenza virus infection. IL-15 specifically down-regulates RARβ expression, and RARβ may play a protective role in lung injury caused by CS exposure and viral infections.
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Affiliation(s)
- Jianmiao Wang
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut.,2 Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; and
| | - Wei Liu
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Chad Marion
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Rajvir Singh
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Nathaniel Andrews
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Chun Geun Lee
- 3 Medicine and Biologic Sciences, Brown University, Warren Alpert Medical School, Providence, Rhode Island
| | - Jack A Elias
- 3 Medicine and Biologic Sciences, Brown University, Warren Alpert Medical School, Providence, Rhode Island
| | - Charles S Dela Cruz
- 1 Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
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Goswami R, Kaplan MH. Essential vitamins for an effective T cell response. World J Immunol 2016; 6:39-59. [DOI: 10.5411/wji.v6.i1.39] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/07/2015] [Accepted: 11/25/2015] [Indexed: 02/06/2023] Open
Abstract
Effective adaptive immune responses rely upon appropriate activation of T cells by antigenic peptide-major histocompatibility complex on the surface of antigen presenting cells (APCs). Activation relies on additional signals including co-stimulatory molecules on the surface of the APCs that promote T cell expansion. The immune response is further sculpted by the cytokine environment. However, T cells also respond to other environmental signals including hormones, neurotransmitters, and vitamins. In this review, we summarize the mechanisms through which vitamins A and D impact immune responses, particularly in the context of T cell responses.
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Molecular Mechanisms of the Action of Vitamin A in Th17/Treg Axis in Multiple Sclerosis. J Mol Neurosci 2015; 57:605-13. [PMID: 26319266 DOI: 10.1007/s12031-015-0643-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 08/17/2015] [Indexed: 01/30/2023]
Abstract
Multiple sclerosis (MS) is an autoinflammatory disease of the central nervous system (CNS). The immunopathogenesis of this disease involves an impaired balance of T helper (Th) 17 cells and regulatory T (Tregs) cells. MS is an autoinflammatory disease characterized by the degeneration of the CNS. For many years, MS has been considered to be an autoreactive Th1 and Th17 cell-dominated disease. The activity and number of Th17 cells are increased in MS; however, the function and number of Treg cells are reduced. Therefore, in MS, the balance between Th17 cells and Treg cells is impaired. Th17 cells produce pro-inflammatory cytokines, which play a role in experimental autoimmune encephalomyelitis (EAE) and MS. However, Treg cell-mediated production of cytokines maintains immune homeostasis and can ameliorate the progression of MS. These observations, therefore, confirm the pathogenic and protective role of Th17 and Treg cells, respectively, and highlight the importance of maintaining the balance of both of these cell types. Evidence suggests that vitamin A and its active metabolites (all-trans-retinoic acid and 9-cis-retinoic acid) modulate the imbalance of Th17 and Treg cells through multiple molecular pathways and can be considered as a promising target in the prevention and treatment of MS.
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The Effect of Vitamin A Supplementation on FoxP3 and TGF-β Gene Expression in Avonex-Treated Multiple Sclerosis Patients. J Mol Neurosci 2015; 56:608-12. [PMID: 25985851 DOI: 10.1007/s12031-015-0549-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/23/2015] [Indexed: 01/07/2023]
Abstract
Multiple sclerosis (MS) is an autoinflammatory condition of the central nervous system with impaired T helper (Th)17 and regulatory T cell (Treg) balance that is involved in disease immunopathogenesis. The vitamin A active metabolite, retinoic acid, can re-establish this imbalance through the modulation of gene expression of specific nuclear receptors including Forkhead box P3 (FoxP3). At present, few data exist on the impact of vitamin A supplementation on T cell balance. This study reports the results of a clinical trial, over a 6-month period, of 36 relapsing-remitting MS (RRMS) patients that received vitamin A (25,000 IU retinyl palmitate) or placebo (one capsule of placebo per day). Peripheral blood mononuclear cells were isolated from patients, and the expression of FoxP3 and transforming growth factor (TGF)-β gene expression was measured using real-time PCR at the beginning and end of the study. The results of this study showed that vitamin A upregulated TGF-β and FoxP3 gene expression. Therefore, vitamin A supplementation can be considered as a new approach in MS prevention and treatment.
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45
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Dakshinamurti K. Vitamins and their derivatives in the prevention and treatment of metabolic syndrome diseases (diabetes),. Can J Physiol Pharmacol 2015; 93:355-62. [DOI: 10.1139/cjpp-2014-0479] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A cluster of inter-related conditions such as central obesity, dyslipidemia, impaired glucose metabolism, and hypertension is referred to as Metabolic Syndrome, which is a risk factor for the development of type-2 diabetes. The micro- and macro-vascular complications of diabetes contribute to its morbidity and mortality. In addition to its calcitropic effect, vitamin D is a regulator of gene expression as well as cell proliferation and differentiation. Various cross-sectional and longitudinal cohort studies have indicated a beneficial effect from vitamin D supplementation on the development of type-2 diabetes. Binding of retinol-bound retinol-binding protein to a membrane-binding protein suppresses insulin signaling. All-trans retinoic acid, a derivative of vitamin A, reverses these effects, resulting in increased insulin sensitivity, suppression of the phosphoenolpyruvate carboxy kinase (PEPCK) gene, and the induction of the glucokinase gene. Glucokinase and PEPCK are also regulated in opposite directions by the vitamin biotin, acting at the transcriptional level. Biotin also regulates the synthesis of insulin by the islet of Langerhans cells of the pancreas. The increase in advanced glycation end products (AGEs) is implicated in the initiation and progression of diabetes-associated microvascular diseases. Benfotiamine, a derivative of thiamine, and pyridoxamine, a vitamer of vitamin B6, both have anti-AGE properties, making them valuable therapeutic adjuvants in the treatment of diabetic complications. Thus, various vitamins and their derivatives have profound therapeutic potential in the prevention and treatment of type-2 diabetes.
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Affiliation(s)
- Krishnamurti Dakshinamurti
- St. Boniface Hospital Research Centre, Faculty of Medicine, University of Manitoba, 351 Tache Avenue Winnipeg, MB R2H 2A6, Canada
- St. Boniface Hospital Research Centre, Faculty of Medicine, University of Manitoba, 351 Tache Avenue Winnipeg, MB R2H 2A6, Canada
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Bimczok D, Kao JY, Zhang M, Cochrun S, Mannon P, Peter S, Wilcox CM, Mönkemüller KE, Harris PR, Grams JM, Stahl RD, Smith PD, Smythies LE. Human gastric epithelial cells contribute to gastric immune regulation by providing retinoic acid to dendritic cells. Mucosal Immunol 2015; 8:533-44. [PMID: 25249167 PMCID: PMC4372513 DOI: 10.1038/mi.2014.86] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 08/18/2014] [Indexed: 02/04/2023]
Abstract
Despite the high prevalence of chronic gastritis caused by Helicobacter pylori, the gastric mucosa has received little investigative attention as a unique immune environment. Here, we analyzed whether retinoic acid (RA), an important homeostatic factor in the small intestinal mucosa, also contributes to gastric immune regulation. We report that human gastric tissue contains high levels of the RA precursor molecule retinol (ROL), and that gastric epithelial cells express both RA biosynthesis genes and RA response genes, indicative of active RA biosynthesis. Moreover, primary gastric epithelial cells cultured in the presence of ROL synthesized RA in vitro and induced RA biosynthesis in co-cultured monocytes through an RA-dependent mechanism, suggesting that gastric epithelial cells may also confer the ability to generate RA on gastric dendritic cells (DCs). Indeed, DCs purified from gastric mucosa had similar levels of aldehyde dehydrogenase activity and RA biosynthesis gene expression as small intestinal DCs, although gastric DCs lacked CD103. In H. pylori-infected gastric mucosa, gastric RA biosynthesis gene expression was severely disrupted, which may lead to reduced RA signaling and thus contribute to disease progression. Collectively, our results support a critical role for RA in human gastric immune regulation.
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Affiliation(s)
- Diane Bimczok
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - John Y. Kao
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - Min Zhang
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - Steven Cochrun
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Peter Mannon
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Shajan Peter
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Charles M. Wilcox
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Klaus E. Mönkemüller
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Paul R. Harris
- Division of Pediatrics, Unit of Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jayleen M. Grams
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Richard D. Stahl
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Phillip D. Smith
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA,VA Medical Center, Birmingham, AL, USA
| | - Lesley E. Smythies
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA,Correspondence: Lesley E. Smythies, , Address: 1720 2nd Avenue South, SHEL 611, Birmingham AL 35294-2182, Phone: 205-975-9254, Fax: 205-996-9113
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Jin Z, Li X, Wan Y. Minireview: nuclear receptor regulation of osteoclast and bone remodeling. Mol Endocrinol 2014; 29:172-86. [PMID: 25549044 DOI: 10.1210/me.2014-1316] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Osteoclasts are bone-resorbing cells essential for skeletal remodeling and regeneration. However, excessive osteoclasts often contribute to prevalent bone degenerative diseases such as osteoporosis, arthritis, and cancer bone metastasis. Osteoclast dysregulation is also associated with rare disorders such as osteopetrosis, pycnodysostosis, Paget's disease, and Gorham-Stout syndrome. The nuclear receptor (NR) family of transcription factors functions as metabolic sensors that control a variety of physiological processes including skeletal homeostasis and serves as attractive therapeutic targets for many diseases. In this review, we highlight recent findings on the new players and the new mechanisms for how NRs regulate osteoclast differentiation and bone resorption. An enhanced understanding of NR functions in osteoclastogenesis will facilitate the development of not only novel osteoprotective medicine but also prudent strategies to minimize the adverse skeletal effects of certain NR-targeting drugs for a better treatment of cancer and metabolic diseases.
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Affiliation(s)
- Zixue Jin
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas 75390
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48
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Wilhelm CJ, Hashimoto JG, Roberts ML, Sonmez MK, Wiren KM. Understanding the addiction cycle: a complex biology with distinct contributions of genotype vs. sex at each stage. Neuroscience 2014; 279:168-86. [PMID: 25194791 PMCID: PMC4224688 DOI: 10.1016/j.neuroscience.2014.08.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Revised: 08/25/2014] [Accepted: 08/26/2014] [Indexed: 02/07/2023]
Abstract
Ethanol abuse can lead to addiction, brain damage and premature death. The cycle of alcohol addiction has been described as a composite consisting of three stages: intoxication, withdrawal and craving/abstinence. There is evidence for contributions of both genotype and sex to alcoholism, but an understanding of the biological underpinnings is limited. Utilizing both sexes of genetic animal models with highly divergent alcohol withdrawal severity, Withdrawal Seizure-Resistant (WSR) and Withdrawal Seizure-Prone (WSP) mice, the distinct contributions of genotype/phenotype and of sex during addiction stages on neuroadaptation were characterized. Transcriptional profiling was performed to identify expression changes as a consequence of chronic intoxication in the medial prefrontal cortex. Significant expression differences were identified on a single platform and tracked over a behaviorally relevant time course that covered each stage of alcohol addiction; i.e., after chronic intoxication, during peak withdrawal, and after a defined period of abstinence. Females were more sensitive to ethanol with higher fold expression differences. Bioinformatics showed a strong effect of sex on the data structure of expression profiles during chronic intoxication and at peak withdrawal irrespective of genetic background. However, during abstinence, differences were observed instead between the lines/phenotypes irrespective of sex. Confirmation of identified pathways showed distinct inflammatory signaling following intoxication at peak withdrawal, with a pro-inflammatory phenotype in females but overall suppression of immune signaling in males. Combined, these results suggest that each stage of the addiction cycle is influenced differentially by sex vs. genetic background and support the development of stage- and sex-specific therapies for alcohol withdrawal and the maintenance of sobriety.
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Affiliation(s)
- C J Wilhelm
- Department of Veterans Affairs Medical Center, Portland, OR 97239, USA; Department of Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA.
| | - J G Hashimoto
- Department of Veterans Affairs Medical Center, Portland, OR 97239, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239, USA
| | - M L Roberts
- Department of Veterans Affairs Medical Center, Portland, OR 97239, USA
| | - M K Sonmez
- Center For Spoken Language Understanding, Oregon Health & Science University, Portland, OR 97239, USA
| | - K M Wiren
- Department of Veterans Affairs Medical Center, Portland, OR 97239, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239, USA
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Chang HK, Hou WS. Retinoic acid modulates interferon-γ production by hepatic natural killer T cells via phosphatase 2A and the extracellular signal-regulated kinase pathway. J Interferon Cytokine Res 2014; 35:200-12. [PMID: 25343668 DOI: 10.1089/jir.2014.0098] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Retinoic acid (RA), an active metabolite converted from vitamin A, plays an active role in immune function, such as defending against infections and immune regulation. Although RA affects various types of immune cells, including antigen-presenting cells, B lymphocytes, and T lymphocytes, whether it affects natural killer T (NKT) cells remain unknown. In this study, we found that RA decreased interferon (IFN)-γ production by activated NKT cells through T-cell receptor (TCR) and CD28. We also found that RA reduced extracellular signal-regulated kinase (ERK) phosphorylation, but increased phosphatase 2A (PP2A) activity in TCR/CD28-stimulated NKT cells. The increased PP2A activity, at least partly, contributed to the reduction of ERK phosphorylation. Since inhibition of ERK activation decreases IFN-γ production by TCR/CD28-stimulated NKT cells, RA may downregulate IFN-γ production by TCR/CD28-stimulated NKT cells through the PP2A-ERK pathway. Our results demonstrated a novel function of RA in modulating the IFN-γ expression by activated NKT cells.
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Affiliation(s)
- Heng-Kwei Chang
- 1 Genomics Research Center , Academia Sinica, Taipei, Taiwan
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50
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Higuchi H, Macke EL, Lee WH, Miller SA, Xu JC, Ikeda S, Ikeda A. Genetic basis of age-dependent synaptic abnormalities in the retina. Mamm Genome 2014; 26:21-32. [PMID: 25273269 DOI: 10.1007/s00335-014-9546-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 09/01/2014] [Indexed: 12/17/2022]
Abstract
Understanding the normal aging process will help us determine the mechanisms of how age-related diseases are caused and progress. A/J inbred mice have been shown to exhibit accelerated aging phenotypes in the retina including increased inflammation and photoreceptor cell degeneration, which resemble human aging symptoms. C57BL/6J (B6) inbred mice are less susceptible for these abnormalities, indicating the existence of genetic factor(s) that affect their severity. In this study, we determined that another age-dependent phenotype, ectopic synapse formation, is also accelerated in the A/J retina compared to the B6 retina. Through genetic mapping utilizing recombinant inbred strains, we identified quantitative trait loci (QTLs) on chromosome 7 and 19, which contribute to abnormal retinal synapses as well as other age-dependent phenotypes. Using consomic single chromosome substitution lines where a single chromosome is from A/J and the rest of the genome is B6, we investigated the individual effect of each QTL on retinal aging phenotypes. We observed that both QTLs independently contribute to abnormal retinal synapses, reduction in the number of cone cells, and an up-regulation of retinal stress marker, glial fibrillary acidic protein (GFAP). Mice with a single chromosome substitution on chromosome 19 also exhibited an increase in inflammatory cells, which is characteristic of aging and age-related macular degeneration. Thus, we identified QTLs that are independently capable of affecting the severity and progression of age-dependent retinal abnormalities in mice.
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Affiliation(s)
- Hitoshi Higuchi
- Department of Medical Genetics, University of Wisconsin-Madison, Madison, WI, 53706, USA
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