1
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Krüger P, Hartinger R, Djabali K. Navigating Lipodystrophy: Insights from Laminopathies and Beyond. Int J Mol Sci 2024; 25:8020. [PMID: 39125589 PMCID: PMC11311807 DOI: 10.3390/ijms25158020] [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: 06/09/2024] [Revised: 07/06/2024] [Accepted: 07/16/2024] [Indexed: 08/12/2024] Open
Abstract
Recent research into laminopathic lipodystrophies-rare genetic disorders caused by mutations in the LMNA gene-has greatly expanded our knowledge of their complex pathology and metabolic implications. These disorders, including Hutchinson-Gilford progeria syndrome (HGPS), Mandibuloacral Dysplasia (MAD), and Familial Partial Lipodystrophy (FPLD), serve as crucial models for studying accelerated aging and metabolic dysfunction, enhancing our understanding of the cellular and molecular mechanisms involved. Research on laminopathies has highlighted how LMNA mutations disrupt adipose tissue function and metabolic regulation, leading to altered fat distribution and metabolic pathway dysfunctions. Such insights improve our understanding of the pathophysiological interactions between genetic anomalies and metabolic processes. This review merges current knowledge on the phenotypic classifications of these diseases and their associated metabolic complications, such as insulin resistance, hypertriglyceridemia, hepatic steatosis, and metabolic syndrome, all of which elevate the risk of cardiovascular disease, stroke, and diabetes. Additionally, a range of published therapeutic strategies, including gene editing, antisense oligonucleotides, and novel pharmacological interventions aimed at addressing defective adipocyte differentiation and lipid metabolism, will be explored. These therapies target the core dysfunctional lamin A protein, aiming to mitigate symptoms and provide a foundation for addressing similar metabolic and genetic disorders.
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Affiliation(s)
| | | | - Karima Djabali
- Epigenetics of Aging, Department of Dermatology and Allergy, TUM School of Medicine, Munich Institute of Biomedical Engineering (MIBE), Technical University of Munich (TUM), 85748 Garching, Germany; (P.K.); (R.H.)
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2
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Rosina M, Ceci V, Turchi R, Chuan L, Borcherding N, Sciarretta F, Sánchez-Díaz M, Tortolici F, Karlinsey K, Chiurchiù V, Fuoco C, Giwa R, Field RL, Audano M, Arena S, Palma A, Riccio F, Shamsi F, Renzone G, Verri M, Crescenzi A, Rizza S, Faienza F, Filomeni G, Kooijman S, Rufini S, de Vries AAF, Scaloni A, Mitro N, Tseng YH, Hidalgo A, Zhou B, Brestoff JR, Aquilano K, Lettieri-Barbato D. Ejection of damaged mitochondria and their removal by macrophages ensure efficient thermogenesis in brown adipose tissue. Cell Metab 2022; 34:533-548.e12. [PMID: 35305295 PMCID: PMC9039922 DOI: 10.1016/j.cmet.2022.02.016] [Citation(s) in RCA: 101] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 01/11/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023]
Abstract
Recent findings have demonstrated that mitochondria can be transferred between cells to control metabolic homeostasis. Although the mitochondria of brown adipocytes comprise a large component of the cell volume and undergo reorganization to sustain thermogenesis, it remains unclear whether an intercellular mitochondrial transfer occurs in brown adipose tissue (BAT) and regulates adaptive thermogenesis. Herein, we demonstrated that thermogenically stressed brown adipocytes release extracellular vesicles (EVs) that contain oxidatively damaged mitochondrial parts to avoid failure of the thermogenic program. When re-uptaken by parental brown adipocytes, mitochondria-derived EVs reduced peroxisome proliferator-activated receptor-γ signaling and the levels of mitochondrial proteins, including UCP1. Their removal via the phagocytic activity of BAT-resident macrophages is instrumental in preserving BAT physiology. Depletion of macrophages in vivo causes the abnormal accumulation of extracellular mitochondrial vesicles in BAT, impairing the thermogenic response to cold exposure. These findings reveal a homeostatic role of tissue-resident macrophages in the mitochondrial quality control of BAT.
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Affiliation(s)
- Marco Rosina
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy; Neurology Unit, Fondazione PTV Policlinico Tor Vergata, Viale Oxford 81, 00133 Rome, Italy
| | - Veronica Ceci
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Riccardo Turchi
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Li Chuan
- Department of Immunology, School of Medicine, University of Connecticut, Farmington, CT 06030, USA
| | - Nicholas Borcherding
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | | | - María Sánchez-Díaz
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid 28029, Spain
| | - Flavia Tortolici
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Keaton Karlinsey
- Department of Immunology, School of Medicine, University of Connecticut, Farmington, CT 06030, USA
| | - Valerio Chiurchiù
- IRCCS, Fondazione Santa Lucia, 00179 Rome, Italy; Institute of Translational Pharmacology, Laboratory of Resolution of Neuroinflammation, National Research Council, 00133 Rome, Italy
| | - Claudia Fuoco
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Rocky Giwa
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Rachael L Field
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Matteo Audano
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy
| | - Simona Arena
- Proteomics, Metabolomics and Mass Spectrometry Laboratory, ISPAAM-National Research Council, Portici, 80055 Naples, Italy
| | - Alessandro Palma
- Department of Onco-Hematology, Gene and Cell Therapy, Bambino Gesù Children's Hospital IRCCS, 00146 Rome, Italy
| | - Federica Riccio
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Farnaz Shamsi
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Giovanni Renzone
- Proteomics, Metabolomics and Mass Spectrometry Laboratory, ISPAAM-National Research Council, Portici, 80055 Naples, Italy
| | - Martina Verri
- Pathology Unit, University Hospital Campus Bio-Medico of Rome, 00128 Rome, Italy
| | - Anna Crescenzi
- Pathology Unit, University Hospital Campus Bio-Medico of Rome, 00128 Rome, Italy
| | - Salvatore Rizza
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark
| | | | | | - Sander Kooijman
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Stefano Rufini
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Antoine A F de Vries
- Department of Cardiology, Laboratory of Experimental Cardiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Andrea Scaloni
- Proteomics, Metabolomics and Mass Spectrometry Laboratory, ISPAAM-National Research Council, Portici, 80055 Naples, Italy
| | - Nico Mitro
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy
| | - Yu-Hua Tseng
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Andrés Hidalgo
- Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid 28029, Spain
| | - Beiyan Zhou
- Department of Immunology, School of Medicine, University of Connecticut, Farmington, CT 06030, USA; Institute for Systems Genomics, University of Connecticut, Farmington, CT 06030, USA
| | - Jonathan R Brestoff
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Katia Aquilano
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Daniele Lettieri-Barbato
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy; IRCCS, Fondazione Santa Lucia, 00179 Rome, Italy.
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3
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Durst M, Könczöl K, Ocskay K, Sípos K, Várnai P, Szilvásy-Szabó A, Fekete C, Tóth ZE. Hypothalamic Nesfatin-1 Resistance May Underlie the Development of Type 2 Diabetes Mellitus in Maternally Undernourished Non-obese Rats. Front Neurosci 2022; 16:828571. [PMID: 35386592 PMCID: PMC8978526 DOI: 10.3389/fnins.2022.828571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/08/2022] [Indexed: 11/13/2022] Open
Abstract
Intrauterine growth retardation (IUGR) poses a high risk for developing late-onset, non-obese type 2 diabetes (T2DM). The exact mechanism underlying this phenomenon is unknown, although the contribution of the central nervous system is recognized. The main hypothalamic nuclei involved in the homeostatic regulation express nesfatin-1, an anorexigenic neuropeptide and identified regulator of blood glucose level. Using intrauterine protein restricted rat model (PR) of IUGR, we investigated, whether IUGR alters the function of nesfatin-1. We show that PR rats develop fat preference and impaired glucose homeostasis by adulthood, while the body composition and caloric intake of normal nourished (NN) and PR rats are similar. Plasma nesfatin-1 levels are unaffected by IUGR in both neonates and adults, but pro-nesfatin-1 mRNA expression is upregulated in the hypothalamus of adult PR animals. We find that centrally injected nesfatin-1 inhibits the fasting induced neuronal activation in the hypothalamic arcuate nucleus in adult NN rats. This effect of nesfatin-1 is not seen in PR rats. The anorexigenic effect of centrally injected nesfatin-1 is also reduced in adult PR rats. Moreover, chronic central nesfatin-1 administration improves the glucose tolerance and insulin sensitivity in NN rats but not in PR animals. Birth dating of nesfatin-1 cells by bromodeoxyuridine (BrDU) reveals that formation of nesfatin-1 cells in the hypothalamus of PR rats is disturbed. Our results suggest that adult PR rats acquire hypothalamic nesfatin-1-resistance, probably due to the altered development of the hypothalamic nesfatin-1 cells. Hypothalamic nesfatin-1-resistance, in turn, may contribute to the development of non-obese type T2DM.
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Affiliation(s)
- Máté Durst
- Laboratory of Neuroendocrinology and in situ Hybridization, Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Katalin Könczöl
- Laboratory of Neuroendocrinology and in situ Hybridization, Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Klementina Ocskay
- Laboratory of Neuroendocrinology and in situ Hybridization, Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Klaudia Sípos
- Laboratory of Neuroendocrinology and in situ Hybridization, Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Péter Várnai
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Anett Szilvásy-Szabó
- Laboratory of Integrative Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
| | - Csaba Fekete
- Laboratory of Integrative Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
| | - Zsuzsanna E. Tóth
- Laboratory of Neuroendocrinology and in situ Hybridization, Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
- *Correspondence: Zsuzsanna E. Tóth,
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4
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Chan PC, Hsieh PS. The Chemokine Systems at the Crossroads of Inflammation and Energy Metabolism in the Development of Obesity. Int J Mol Sci 2021; 22:ijms222413528. [PMID: 34948325 PMCID: PMC8709111 DOI: 10.3390/ijms222413528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/11/2021] [Accepted: 12/13/2021] [Indexed: 12/16/2022] Open
Abstract
Obesity is characterized as a complex and multifactorial excess accretion of adipose tissue accompanied with alterations in the immune and metabolic responses. Although the chemokine systems have been documented to be involved in the control of tissue inflammation and metabolism, the dual role of chemokines and chemokine receptors in the pathogenesis of the inflammatory milieu and dysregulated energy metabolism in obesity remains elusive. The objective of this review is to present an update on the link between chemokines and obesity-related inflammation and metabolism dysregulation under the light of recent knowledge, which may present important therapeutic targets that could control obesity-associated immune and metabolic disorders and chronic complications in the near future. In addition, the cellular and molecular mechanisms of chemokines and chemokine receptors including the potential effect of post-translational modification of chemokines in the regulation of inflammation and energy metabolism will be discussed in this review.
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Affiliation(s)
- Pei-Chi Chan
- National Defense Medical Center (NDMC), Department of Physiology & Biophysics, Taipei 114, Taiwan;
| | - Po-Shiuan Hsieh
- National Defense Medical Center (NDMC), Department of Physiology & Biophysics, Taipei 114, Taiwan;
- Graduate Institute of Medical Science, NDMC, Taipei 114, Taiwan
- Department of Medical Research, Tri-Service General Hospital, Taipei 114, Taiwan
- Correspondence: ; Tel.: +886-2-87923100 (ext. 18622); Fax: +886-2-87924827
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5
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Moreno-Navarrete JM, Comas F, de Jager V, Fernández-Real JM, Bouma HR. Cecal Ligation and Puncture-Induced Sepsis Promotes Brown Adipose Tissue Inflammation Without Any Impact on Expression of Thermogenic-Related Genes. Front Physiol 2021; 12:692618. [PMID: 34322037 PMCID: PMC8313297 DOI: 10.3389/fphys.2021.692618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/15/2021] [Indexed: 11/13/2022] Open
Abstract
Background and Aims: The negative effects of chronic low-level inflammation on adipose tissue physiology have been extensively demonstrated, whereas the effects of acute inflammation are less studied. Here, we aimed to investigate the effects of sepsis-induced acute inflammation on gene expression markers of brown and white adipose tissue functionality. Methods: Brown adipose tissue (BAT) and perirenal white adipose tissue (prWAT) gene expression markers were analyzed in cecal ligation and puncture (CLP)-induced sepsis mice model. Results: CLP-induced sepsis attenuated expression of adipogenesis-related genes, in parallel to increased Tnf, Il6, and Ltf gene expression in prWAT. In contrast, CLP-induced sepsis resulted in increased expression of pro-inflammatory genes (Il6, Ltf, and Lbp) in BAT, without affecting expression of genes encoding for thermogenic activity. Conclusion: Sepsis promotes both prWAT and BAT inflammation, associated with reduced adipogenesis-related gene expression in prWAT, without significant effects on BAT thermogenic genes.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Hospital of Girona "Dr Josep Trueta" and Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain.,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn) (CB06/03/010), Girona, Spain.,Department of Medicine, Universitat de Girona, Girona, Spain
| | - Ferran Comas
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Hospital of Girona "Dr Josep Trueta" and Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain.,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn) (CB06/03/010), Girona, Spain
| | - Vincent de Jager
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Hospital of Girona "Dr Josep Trueta" and Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain.,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBERobn) (CB06/03/010), Girona, Spain.,Department of Medicine, Universitat de Girona, Girona, Spain
| | - Hjalmar R Bouma
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.,Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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6
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Xu K, Chen S, Xie L, Qiu Y, Bai X, Liu XZ, Zhang HM, Wang XH, Jin Y, Sun Y, Kong WJ. Local Macrophage-Related Immune Response Is Involved in Cochlear Epithelial Damage in Distinct Gjb2-Related Hereditary Deafness Models. Front Cell Dev Biol 2021; 8:597769. [PMID: 33505961 PMCID: PMC7829512 DOI: 10.3389/fcell.2020.597769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 12/07/2020] [Indexed: 12/31/2022] Open
Abstract
The macrophage-related immune response is an important component of the cochlear response to different exogenous stresses, including noise, ototoxic antibiotics, toxins, or viral infection. However, the role of the immune response in hereditary deafness caused by genetic mutations is rarely explored. GJB2, encoding connexin 26 (Cx26), is the most common deafness gene of hereditary deafness. In this study, two distinct Cx26-null mouse models were established to investigate the types and underlying mechanisms of immune responses. In a systemic Cx26-null model, macrophage recruitment was observed, associated with extensive cell degeneration of the cochlear epithelium. In a targeted-cell Cx26-null model, knockout of Cx26 was restricted to specific supporting cells (SCs), which led to preferential loss of local outer hair cells (OHCs). This local OHC loss can also induce a macrophage-related immune response. Common inflammatory factors, including TNF-α, IL-1β, Icam-1, Mif, Cx3cr1, Tlr4, Ccl2, and Ccr2, did not change significantly, while mRNA of Cx3cl1 was upregulated. Quantitative immunofluorescence showed that the protein expression of CX3CL1 in Deiters cells, a type of SC coupled with OHCs, increased significantly after OHC death. OHC loss caused the secondary death of spiral ganglion neurons (SGNs), while the remaining SGNs expressed high levels of CX3CL1 with infiltrated macrophages. Taken together, our results indicate that CX3CL1 signaling regulates macrophage recruitment and that enhancement of macrophage antigen-presenting function is associated with cell degeneration in Cx26-null mice.
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Affiliation(s)
- Kai Xu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sen Chen
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Le Xie
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Qiu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xue Bai
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Zhou Liu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui-Min Zhang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Hui Wang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Jin
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Sun
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei-Jia Kong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Tongji Medical College, Institute of Otorhinolaryngology, Huazhong University of Science and Technology, Wuhan, China
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7
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Binesh A, Devaraj Sivasitambaram N, Halagowder D. Monocytes treated with ciprofloxacin and oxyLDL express myristate, priming atherosclerosis. J Biochem Mol Toxicol 2020; 34:e22442. [PMID: 31926051 DOI: 10.1002/jbt.22442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 10/22/2019] [Accepted: 12/17/2019] [Indexed: 11/05/2022]
Abstract
Antibiotics are essential in many life-threatening diseases. On the other hand, improper use of antibiotics can be disastrous. Cell morphological changes were observed in the ciprofloxacin-treated cells starting at 48 hours. Changes in cell morphology were continuously observed up to 14 days, which showed gradual morphological changes from monocyte to plaque-like cells at day 12, and foam cell, which is an intermediate stage in atherosclerosis was observed at day 8, which was confirmed with Oil Red O staining. Flow cytometry data revealed that oxidized LDL (oxyLDL)-induced cells showed 60.16% of CD64 (proinflammatory macrophage markers) and no expression of CD23 (anti-inflammatory macrophage markers), whereas ciprofloxacin-treated cells expressed 67.97% of CD64 and 13.78% of CD23. Chemokine antibody array analysis revealed that ciprofloxacin exposed cells showed a proinflammatory role (ENA78, Eotaxin1, Eotaxin2, IP-10, MIG, MIP-3β, SDF-1β, TECK, CXCL16, and Fractalkine). Liquid chromatography with tandem mass spectrometry (LC-MS/MS) revealed that myristic acid was incorporated into a protein with 68 kDa molecular mass in exposing oxyLDL-induced monocytes with ciprofloxacin, which could be a reason for the observed foam cells and in vitro plaque formation. As myristic acid primes atherosclerosis, it is better to limit the intake of antibiotics like ciprofloxacin for common illness, specifically the high-risk patients, which may contribute to atherosclerosis.
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Affiliation(s)
- Ambika Binesh
- Department of Basic Sciences - Biotechnology, Institute of Fisheries Post Graduate Studies, Tamil Nadu Dr. J. Jayalalithaa Fisheries University, OMR Campus, Chennai, Tamil Nadu, India
| | | | - Devaraj Halagowder
- Department of Zoology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, India
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8
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Abstract
Obesity is characterized by a state of chronic inflammation in adipose tissue mediated by the secretion of a range of inflammatory cytokines. In comparison to WAT, relatively little is known about the inflammatory status of brown adipose tissue (BAT) in physiology and pathophysiology. Because BAT and brown/beige adipocytes are specialized in energy expenditure they have protective roles against obesity and associated metabolic diseases. BAT appears to be is less susceptible to developing inflammation than WAT. However, there is increasing evidence that inflammation directly alters the thermogenic activity of brown fat by impairing its capacity for energy expenditure and glucose uptake. The inflammatory microenvironment can be affected by cytokines secreted by immune cells as well as by the brown adipocytes themselves. Therefore, pro-inflammatory signals represent an important component of the thermogenic potential of brown and beige adipocytes and may contribute their dysfunction in obesity.
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Affiliation(s)
- Farah Omran
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Mark Christian
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
- *Correspondence: Mark Christian
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9
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Villarroya F, Cereijo R, Gavaldà-Navarro A, Villarroya J, Giralt M. Inflammation of brown/beige adipose tissues in obesity and metabolic disease. J Intern Med 2018; 284:492-504. [PMID: 29923291 DOI: 10.1111/joim.12803] [Citation(s) in RCA: 174] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Many of the comorbidities of obesity, including type 2 diabetes and cardiovascular diseases, are related to the low-grade chronic inflammation of white adipose tissue. Under white adipocyte stress, local infiltration of immune cells and enhanced production of pro-inflammatory cytokines together reduce metabolic flexibility and lead to insulin resistance in obesity. Whereas white adipocytes act in energy storage, brown and beige adipocytes specialize in energy expenditure. Brown and beige activity protects against obesity and associated metabolic disorders, such as hyperglycaemia and hyperlipidaemia. Compared to white fat, brown adipose tissue depots are less susceptible to developing local inflammation in response to obesity; however, strong obesogenic insults ultimately induce a locally pro-inflammatory environment in brown fat. This condition directly alters the thermogenic activity of brown fat by impairing its energy expenditure mechanism and uptake of glucose for use as a fuel substrate. Pro-inflammatory cytokines also impair beige adipogenesis, which occurs mainly in subcutaneous adipose tissue. There is evidence that inflammatory processes occurring in perivascular adipose tissues alter their brown-versus-white plasticity, impair the extent of browning in these depots and favour the local release of vasculature damaging signals. In summary, the targeting of brown and beige adipose tissues by pro-inflammatory signals and the subsequent impairment of their thermogenic and metabolite draining activities appears to represent obesity-driven disturbances that contribute to metabolic syndrome and cardiovascular alterations in obesity.
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Affiliation(s)
- F Villarroya
- Department of Biochemistry and Molecular Biomedicine, CIBER Fisiopatología de la Obesidad y Nutrición, Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain.,Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - R Cereijo
- Department of Biochemistry and Molecular Biomedicine, CIBER Fisiopatología de la Obesidad y Nutrición, Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain.,Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - A Gavaldà-Navarro
- Department of Biochemistry and Molecular Biomedicine, CIBER Fisiopatología de la Obesidad y Nutrición, Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain.,Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - J Villarroya
- Department of Biochemistry and Molecular Biomedicine, CIBER Fisiopatología de la Obesidad y Nutrición, Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain.,Institut de Recerca Sant Joan de Déu, Barcelona, Spain.,Institut de Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - M Giralt
- Department of Biochemistry and Molecular Biomedicine, CIBER Fisiopatología de la Obesidad y Nutrición, Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain.,Institut de Recerca Sant Joan de Déu, Barcelona, Spain
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10
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Conroy MJ, Maher SG, Melo AM, Doyle SL, Foley E, Reynolds JV, Long A, Lysaght J. Identifying a Novel Role for Fractalkine (CX3CL1) in Memory CD8 + T Cell Accumulation in the Omentum of Obesity-Associated Cancer Patients. Front Immunol 2018; 9:1867. [PMID: 30150990 PMCID: PMC6099201 DOI: 10.3389/fimmu.2018.01867] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 07/30/2018] [Indexed: 11/13/2022] Open
Abstract
The omentum is enriched with pro-inflammatory effector memory CD8+ T cells in patients with the obesity-associated malignancy, esophagogastric adenocarcinoma (EAC) and we have identified the chemokine macrophage inflammatory protein-1alpha as a key player in their active migration to this inflamed tissue. More recently, others have established that subsets of memory CD8+ T cells can be classified based on their surface expression of CX3CR1; the specific receptor for the inflammatory chemokine fractalkine. CD8+ T cells expressing intermediate levels (CX3CR1INT) are defined as peripheral memory, those expressing the highest levels (CX3CR1HI) are effector memory/terminally differentiated and those lacking CX3CR1 (CX3CR1NEG) are classified as central memory. To date, the fractalkine:CX3CR1 axis has not been examined in the context of CD8+ T cell enrichment in the omentum and here we examine this chemokines involvement in the accumulation of memory CD8+ T cells in the omentum of EAC patients. Our data show that fractalkine is significantly enriched in the omentum of EAC patients and drives migration of T cells derived from EAC patient blood. Furthermore, CX3CR1 is endocytosed specifically by CD8+ T cells upon encountering fractalkine, which is consistent with the significantly diminished frequencies of CX3CR1INT and CX3CR1HI CD8+ T cells in the fractalkine-rich environment of omentum in EAC, relative to matched blood. Fractalkine-mediated endocytosis of CX3CR1 by CD8+ T cells is sustained and is followed by enhanced surface expression of L-selectin (CD62L). These novel data align with our findings that circulating CX3CR1NEG CD8+ T cells express higher levels of L-selectin than CX3CR1INT CD8+ T cells. This is consistent with previous reports and implicates fractalkine in the conversion of CX3CR1INT CD8+ T cells to a CX3CR1NEG phenotype characterized by alterations in the migratory capacity of these T cells. For the first time, these findings identify fractalkine as a driver of T cell migration to the omentum in EAC and indicate that CD8+ T cells undergo sequenced fractalkine-mediated alterations in CX3CR1 and L-selectin expression. These data implicate fractalkine as more than a chemotactic cytokine in obesity-associated meta-inflammation and reveal a role for this chemokine in the maintenance of the CX3CR1NEG CD8+ T cell populations.
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Affiliation(s)
- Melissa J Conroy
- Department of Surgery, St. James's Hospital, Trinity College Dublin, Trinity Translational Medicine Institute, Dublin, Ireland
| | - Stephen G Maher
- Department of Surgery, St. James's Hospital, Trinity College Dublin, Trinity Translational Medicine Institute, Dublin, Ireland
| | - Ashanty M Melo
- Department of Surgery, St. James's Hospital, Trinity College Dublin, Trinity Translational Medicine Institute, Dublin, Ireland
| | - Suzanne L Doyle
- School of Biological Sciences, Dublin Institute of Technology, Dublin, Ireland
| | - Emma Foley
- Department of Surgery, St. James's Hospital, Trinity College Dublin, Trinity Translational Medicine Institute, Dublin, Ireland
| | - John V Reynolds
- Department of Surgery, St. James's Hospital, Trinity College Dublin, Trinity Translational Medicine Institute, Dublin, Ireland.,Gastro-Intestinal Medicine and Surgery, St. James's Hospital, Dublin, Ireland
| | - Aideen Long
- Department of Clinical Medicine, St. James's Hospital, Trinity College Dublin, Trinity Translational Medicine Institute, Dublin, Ireland
| | - Joanne Lysaght
- Department of Surgery, St. James's Hospital, Trinity College Dublin, Trinity Translational Medicine Institute, Dublin, Ireland
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11
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Carobbio S, Guénantin AC, Samuelson I, Bahri M, Vidal-Puig A. Brown and beige fat: From molecules to physiology and pathophysiology. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1864:37-50. [PMID: 29852279 DOI: 10.1016/j.bbalip.2018.05.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/31/2018] [Accepted: 05/23/2018] [Indexed: 12/20/2022]
Abstract
The adipose organ portrays adipocytes of diverse tones: white, brown and beige, each type with distinct functions. Adipocytes orchestrate their adaptation and expansion to provide storage to excess nutrients, the quick mobilisation of fuel to supply peripheral functional demands, insulation, and, in their thermogenic form, heat generation to maintain core body temperature. Thermogenic adipocytes could be targets for anti-obesity and anti-diabetic therapeutic approaches aiming to restore adipose tissue functionality and increase energy dissipation. However, for thermogenic adipose tissue to become therapeutically relevant, a better understanding of its development and origins, its progenitors and their characteristics and the composition of its niche, is essential. Also crucial is the identification of stimuli and molecules promoting its specific differentiation and activation. Here we highlight the structural/cellular differences between human and rodent brown adipose tissue and discuss how obesity and metabolic complication affects brown and beige cells as well as how they could be targeted to improve their activation and improve global metabolic homeostasis. Finally, we describe the limitations of current research models and the advantages of new emerging approaches.
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Affiliation(s)
- Stefania Carobbio
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK; Metabolic Research Laboratories, Addenbrooke's Treatment Centre, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
| | - Anne-Claire Guénantin
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK; Metabolic Research Laboratories, Addenbrooke's Treatment Centre, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
| | - Isabella Samuelson
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK; Metabolic Research Laboratories, Addenbrooke's Treatment Centre, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - Myriam Bahri
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK; Metabolic Research Laboratories, Addenbrooke's Treatment Centre, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - Antonio Vidal-Puig
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK; Metabolic Research Laboratories, Addenbrooke's Treatment Centre, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
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12
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Kotzbeck P, Giordano A, Mondini E, Murano I, Severi I, Venema W, Cecchini MP, Kershaw EE, Barbatelli G, Haemmerle G, Zechner R, Cinti S. Brown adipose tissue whitening leads to brown adipocyte death and adipose tissue inflammation. J Lipid Res 2018; 59:784-794. [PMID: 29599420 DOI: 10.1194/jlr.m079665] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 02/20/2018] [Indexed: 12/11/2022] Open
Abstract
In mammals, white adipose tissue (WAT) stores and releases lipids, whereas brown adipose tissue (BAT) oxidizes lipids to fuel thermogenesis. In obese individuals, WAT undergoes profound changes; it expands, becomes dysfunctional, and develops a low-grade inflammatory state. Importantly, BAT content and activity decline in obese subjects, mainly as a result of the conversion of brown adipocytes to white-like unilocular cells. Here, we show that BAT "whitening" is induced by multiple factors, including high ambient temperature, leptin receptor deficiency, β-adrenergic signaling impairment, and lipase deficiency, each of which is capable of inducing macrophage infiltration, brown adipocyte death, and crown-like structure (CLS) formation. Brown-to-white conversion and increased CLS formation were most marked in BAT from adipose triglyceride lipase (Atgl)-deficient mice, where, according to transmission electron microscopy, whitened brown adipocytes contained enlarged endoplasmic reticulum, cholesterol crystals, and some degenerating mitochondria, and were surrounded by an increased number of collagen fibrils. Gene expression analysis showed that BAT whitening in Atgl-deficient mice was associated to a strong inflammatory response and NLRP3 inflammasome activation. Altogether, the present findings suggest that converted enlarged brown adipocytes are highly prone to death, which, by promoting inflammation in whitened BAT, may contribute to the typical inflammatory state seen in obesity.
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Affiliation(s)
- Petra Kotzbeck
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Antonio Giordano
- Department of Experimental and Clinical Medicine and Center of Obesity, University of Ancona (Politecnica delle Marche)-United Hospitals, Ancona, Italy
| | - Eleonora Mondini
- Department of Experimental and Clinical Medicine and Center of Obesity, University of Ancona (Politecnica delle Marche)-United Hospitals, Ancona, Italy
| | - Incoronata Murano
- Department of Experimental and Clinical Medicine and Center of Obesity, University of Ancona (Politecnica delle Marche)-United Hospitals, Ancona, Italy
| | - Ilenia Severi
- Department of Experimental and Clinical Medicine and Center of Obesity, University of Ancona (Politecnica delle Marche)-United Hospitals, Ancona, Italy
| | - Wiebe Venema
- Department of Experimental and Clinical Medicine and Center of Obesity, University of Ancona (Politecnica delle Marche)-United Hospitals, Ancona, Italy
| | - Maria Paola Cecchini
- Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Verona, Italy
| | - Erin E Kershaw
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA
| | - Giorgio Barbatelli
- Department of Experimental and Clinical Medicine and Center of Obesity, University of Ancona (Politecnica delle Marche)-United Hospitals, Ancona, Italy
| | - Guenter Haemmerle
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Rudolf Zechner
- Institute of Molecular Biosciences, University of Graz, Graz, Austria.,BioTechMed-Graz, Graz, Austria
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine and Center of Obesity, University of Ancona (Politecnica delle Marche)-United Hospitals, Ancona, Italy
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13
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Kumari M, Heeren J, Scheja L. Regulation of immunometabolism in adipose tissue. Semin Immunopathol 2017; 40:189-202. [DOI: 10.1007/s00281-017-0668-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 11/22/2017] [Indexed: 12/14/2022]
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14
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Pardo F, Villalobos-Labra R, Chiarello DI, Salsoso R, Toledo F, Gutierrez J, Leiva A, Sobrevia L. Molecular implications of adenosine in obesity. Mol Aspects Med 2017; 55:90-101. [PMID: 28104382 DOI: 10.1016/j.mam.2017.01.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 12/30/2016] [Accepted: 01/13/2017] [Indexed: 12/31/2022]
Abstract
Adenosine has broad activities in organisms due to the existence of multiple receptors, the differential adenosine concentrations necessary to activate these receptors and the presence of proteins able to synthetize, degrade or transport this nucleoside. All adenosine receptors have been reported to be involved in glucose homeostasis, inflammation, adipogenesis, insulin resistance, and thermogenesis, indicating that adenosine could participate in the process of obesity. Since adenosine seems to be associated with several effects, it is plausible that adenosine participates in the initiation and development of obesity or may function to prevent it. Thus, the purpose of this review was to explore the involvement of adenosine in adipogenesis, insulin resistance and thermogenesis, with the aim of understanding how adenosine could be used to avoid, treat or improve the metabolic state of obesity. Treatment with specific agonists and/or antagonists of adenosine receptors could reverse the obesity state, since adenosine receptors normalizes several mechanisms involved in obesity, such as lipolysis, insulin sensitivity and thermogenesis. Furthermore, obesity is a preventable state, and the specific activation of adenosine receptors could aid in the prevention of obesity. Nevertheless, for the treatment of obesity and its consequences, more studies and therapeutic strategies in addition to adenosine are necessary.
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Affiliation(s)
- Fabián Pardo
- Metabolic Diseases Research Laboratory, Center of Research, Development and Innovation in Health - Aconcagua Valley, San Felipe Campus, School of Medicine, Faculty of Medicine, Universidad de Valparaiso, 2172972 San Felipe, Chile; Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile.
| | - Roberto Villalobos-Labra
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Delia I Chiarello
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Rocío Salsoso
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, Seville E-41012, Spain
| | - Fernando Toledo
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Department of Basic Sciences, Faculty of Sciences, Universidad del Bío-Bío, Chillán 3780000, Chile
| | - Jaime Gutierrez
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Cellular Signaling Differentiation and Regeneration Laboratory, Health Sciences Faculty, Universidad San Sebastian, Santiago, Chile
| | - Andrea Leiva
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Luis Sobrevia
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, Seville E-41012, Spain; University of Queensland Centre for Clinical Research, Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, QLD 4029, Queensland, Australia.
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15
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Blum K, Downs B, Dushaj K, Li M, Braverman ER, Fried L, Waite R, Demotrovics Z, Badgaiyan RD. THE BENEFITS OF CUSTOMIZED DNA DIRECTED NUTRITION TO BALANCE THE BRAIN REWARD CIRCUITRY AND REDUCE ADDICTIVE BEHAVIORS. PRECISION MEDICINE 2016; 1:18-33. [PMID: 28066828 PMCID: PMC5210211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
DNA Customization of nutraceutical products is here. In the truest sense, "Gene Guided Precision Nutrition™" and KB220 variants (a complex mixture of amino-acids, trace metals, and herbals) are the pioneers and standard-bearers for a state of the art DNA customization. Findings by both, Kenneth Blum, Ph.D. and Ernest Noble, Ph.D. concerning the role of genes in shaping cravings and pleasure- seeking, opened the doors to comprehension of how genetics control our actions and effect our mental and physical health. Moreover, technology that is related to KB220 variants in order to reduce or eradicate excessive cravings by influencing gene expression is a cornerstone in the pioneering of the practical applications of nutrigenomics. Continuing discoveries have been an important catalyst for the evolution, expansion, and scientific recognition of the significance of nutrigenomics and its remarkable contributions to human health. Neuro-Nutrigenomics is now a very important field of scientific investigation that offers great promise to improving the human condition. In the forefront is the development of the Genetic Addiction Risk Score (GARS™), which unlike 23andMe, has predictive value for the severity of drug and alcohol abuse as well as other non-substance related addictive behaviors. While customization of neuronutrients has not yet been commercialized, there is emerging evidence that in the future, the concept will be developed and could have a significant impact in addiction medicine.
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Affiliation(s)
- Kenneth Blum
- Department of Psychiatry & McKnight Brain Institute, University of Florida College of Medicine, Gainesville, FL, USA
- Departments of Psychiatry & Behavioral Sciences, Keck School of Medicine of USC, Los Angeles, CA, USA
- Department of Clinical Neurology, PATH Foundation NY, New York, NY, USA
- Human Integrated Services Unit, University of Vermont Centre for Clinical & Translational Science, College of Medicine, Burlington, VT, USA
- Division of Addiction Services, Dominion Diagnostics, LLC., North Kingstown, RI, USA
- Division of Neuroscience-based Therapy, Summit Estate Recovery Center, Los Gatos, CA, USA
- The Shores Treatment & Recovery, Port Saint Lucie, FL, USA
- Department of Precision Medicine, IGENE, LLC., Austin, TX, USA
- Division of Nutrigenomics, LaVitaRDS, Draper, UT, USA
- Institute of Psychology, Eötvös Loránd University Budapest, HUNGARY
| | - B.W. Downs
- Victory Nutrition International, Lederoch, PA, USA
| | - Kristina Dushaj
- Department of Clinical Neurology, PATH Foundation NY, New York, NY, USA
| | - Mona Li
- Department of Clinical Neurology, PATH Foundation NY, New York, NY, USA
| | - Eric R. Braverman
- Department of Clinical Neurology, PATH Foundation NY, New York, NY, USA
| | - Lyle Fried
- The Shores Treatment & Recovery, Port Saint Lucie, FL, USA
| | - Roger Waite
- Division of Nutrigenomics, LaVitaRDS, Draper, UT, USA
| | | | - Rajendra D. Badgaiyan
- Department of Psychiatry, Laboratory of Molecular and Functional Imaging, University at Minnesota, Minneapolis, MN, USA
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