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Ho A, Ngala B, Yamada C, Garcia C, Duarte C, Akkaoui J, Ciolac D, Nusbaum A, Kochen W, Efremova D, Groppa S, Nathanson L, Bissel S, Oblak A, Kacena MA, Movila A. IL-34 exacerbates pathogenic features of Alzheimer's disease and calvaria osteolysis in triple transgenic (3x-Tg) female mice. Biomed Pharmacother 2023; 166:115435. [PMID: 37666180 DOI: 10.1016/j.biopha.2023.115435] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023] Open
Abstract
Hallmark features of Alzheimer's disease (AD) include elevated accumulation of aggregated Aβ40 and Aβ42 peptides, hyperphosphorylated Tau (p-Tau), and neuroinflammation. Emerging evidence indicated that interleukin-34 (IL-34) contributes to AD and inflammatory osteolysis via the colony-stimulating factor-1 receptor (CSF-1r). In addition, CSF-1r is also activated by macrophage colony-stimulating factor-1 (M-CSF). While the role of M-CSF in bone physiology and pathology is well addressed, it remains controversial whether IL-34-mediated signaling promotes osteolysis, neurodegeneration, and neuroinflammation in relation to AD. In this study, we injected 3x-Tg mice with mouse recombinant IL-34 protein over the calvaria bone every other day for 42 days. Then, behavioral changes, brain pathology, and calvaria osteolysis were evaluated using various behavioral maze and histological assays. We demonstrated that IL-34 administration dramatically elevated AD-like anxiety and memory loss, pathogenic amyloidogenesis, p-Tau, and RAGE expression in female 3x-Tg mice. Furthermore, IL-34 delivery promoted calvaria inflammatory osteolysis compared to the control group. In addition, we also compared the effects of IL-34 and M-CSF on macrophages, microglia, and RANKL-mediated osteoclastogenesis in relation to AD pathology in vitro. We observed that IL-34-exposed SIM-A9 microglia and 3x-Tg bone marrow-derived macrophages released significantly elevated amounts of pro-inflammatory cytokines, TNF-α, IL-1β, and IL-6, compared to M-CSF treatment in vitro. Furthermore, IL-34, but not M-CSF, elevated RANKL-primed osteoclastogenesis in the presence of Aβ40 and Aβ42 peptides in bone marrow derived macrophages isolated from female 3x-Tg mice. Collectively, our data indicated that IL-34 elevates AD-like features, including behavioral changes and neuroinflammation, as well as osteoclastogenesis in female 3x-Tg mice.
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Affiliation(s)
- Anny Ho
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Bidii Ngala
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Christopher Garcia
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Carolina Duarte
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Juliet Akkaoui
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Dumitru Ciolac
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Amilia Nusbaum
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - William Kochen
- College of Psychology, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Daniela Efremova
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Stanislav Groppa
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Stephanie Bissel
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Adrian Oblak
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Melissa A Kacena
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alexandru Movila
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA.
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Kempuraj D, Aenlle KK, Cohen J, Mathew A, Isler D, Pangeni RP, Nathanson L, Theoharides TC, Klimas NG. COVID-19 and Long COVID: Disruption of the Neurovascular Unit, Blood-Brain Barrier, and Tight Junctions. Neuroscientist 2023:10738584231194927. [PMID: 37694571 DOI: 10.1177/10738584231194927] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19), could affect brain structure and function. SARS-CoV-2 can enter the brain through different routes, including the olfactory, trigeminal, and vagus nerves, and through blood and immunocytes. SARS-CoV-2 may also enter the brain from the peripheral blood through a disrupted blood-brain barrier (BBB). The neurovascular unit in the brain, composed of neurons, astrocytes, endothelial cells, and pericytes, protects brain parenchyma by regulating the entry of substances from the blood. The endothelial cells, pericytes, and astrocytes highly express angiotensin converting enzyme 2 (ACE2), indicating that the BBB can be disturbed by SARS-CoV-2 and lead to derangements of tight junction and adherens junction proteins. This leads to increased BBB permeability, leakage of blood components, and movement of immune cells into the brain parenchyma. SARS-CoV-2 may also cross microvascular endothelial cells through an ACE2 receptor-associated pathway. The exact mechanism of BBB dysregulation in COVID-19/neuro-COVID is not clearly known, nor is the development of long COVID. Various blood biomarkers could indicate disease severity and neurologic complications in COVID-19 and help objectively diagnose those developing long COVID. This review highlights the importance of neurovascular and BBB disruption, as well as some potentially useful biomarkers in COVID-19, and long COVID/neuro-COVID.
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Affiliation(s)
- Duraisamy Kempuraj
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Kristina K Aenlle
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
- Miami Veterans Affairs Healthcare System, Miami, FL, USA
| | - Jessica Cohen
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Annette Mathew
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Dylan Isler
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Rajendra P Pangeni
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Lubov Nathanson
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Theoharis C Theoharides
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, School of Medicine, Tufts University, Boston, MA, USA
| | - Nancy G Klimas
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
- Miami Veterans Affairs Healthcare System, Miami, FL, USA
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Gamer J, Van Booven DJ, Zarnowski O, Arango S, Elias M, Kurian A, Joseph A, Perez M, Collado F, Klimas N, Oltra E, Nathanson L. Sex-Dependent Transcriptional Changes in Response to Stress in Patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Pilot Project. Int J Mol Sci 2023; 24:10255. [PMID: 37373402 DOI: 10.3390/ijms241210255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/23/2023] [Accepted: 06/04/2023] [Indexed: 06/29/2023] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex, multi-symptom illness characterized by debilitating fatigue and post-exertional malaise (PEM). Numerous studies have reported sex differences at the epidemiological, cellular, and molecular levels between male and female ME/CFS patients. To gain further insight into these sex-dependent changes, we evaluated differential gene expression by RNA-sequencing (RNA-Seq) in 33 ME/CFS patients (20 female, 13 male) and 34 matched healthy controls (20 female and 14 male) before, during, and after an exercise challenge intended to provoke PEM. Our findings revealed that pathways related to immune-cell signaling (including IL-12) and natural killer cell cytotoxicity were activated as a result of exertion in the male ME/CFS cohort, while female ME/CFS patients did not show significant enough changes in gene expression to meet the criteria for the differential expression. Functional analysis during recovery from an exercise challenge showed that male ME/CFS patients had distinct changes in the regulation of specific cytokine signals (including IL-1β). Meanwhile, female ME/CFS patients had significant alterations in gene networks related to cell stress, response to herpes viruses, and NF-κβ signaling. The functional pathways and differentially expressed genes highlighted in this pilot project provide insight into the sex-specific pathophysiology of ME/CFS.
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Affiliation(s)
- Jackson Gamer
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Derek J Van Booven
- Dr. J.P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Oskar Zarnowski
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Sebastian Arango
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Mark Elias
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Asha Kurian
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Andrew Joseph
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Melanie Perez
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Fanny Collado
- Department of Veterans Affairs, Miami VA Healthcare System, Geriatric Research Education and Clinical Center (GRECC), Miami, FL 33125, USA
- South Florida Veterans Affairs Foundation for Research and Education Inc., Fort Lauderdale, FL 33125, USA
| | - Nancy Klimas
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Department of Veterans Affairs, Miami VA Healthcare System, Geriatric Research Education and Clinical Center (GRECC), Miami, FL 33125, USA
- South Florida Veterans Affairs Foundation for Research and Education Inc., Fort Lauderdale, FL 33125, USA
| | - Elisa Oltra
- School Medicine, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain
| | - Lubov Nathanson
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
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Van Booven DJ, Gamer J, Joseph A, Perez M, Zarnowski O, Pandya M, Collado F, Klimas N, Oltra E, Nathanson L. Stress-Induced Transcriptomic Changes in Females with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Reveal Disrupted Immune Signatures. Int J Mol Sci 2023; 24:2698. [PMID: 36769022 PMCID: PMC9916639 DOI: 10.3390/ijms24032698] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/22/2023] [Accepted: 01/25/2023] [Indexed: 02/04/2023] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic, complex multi-organ illness characterized by unexplained debilitating fatigue and post-exertional malaise (PEM), which is defined as a worsening of symptoms following even minor physical or mental exertion. Our study aimed to evaluate transcriptomic changes in ME/CFS female patients undergoing an exercise challenge intended to precipitate PEM. Our time points (baseline before exercise challenge, the point of maximal exertion, and after an exercise challenge) allowed for the exploration of the transcriptomic response to exercise and recovery in female patients with ME/CFS, as compared to healthy controls (HCs). Under maximal exertion, ME/CFS patients did not show significant changes in gene expression, while HCs demonstrated altered functional gene networks related to signaling and integral functions of their immune cells. During the recovery period (commonly during onset of PEM), female ME/CFS patients showed dysregulated immune signaling pathways and dysfunctional cellular responses to stress. The unique functional pathways identified provide a foundation for future research efforts into the disease, as well as for potential targeted treatment options.
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Affiliation(s)
- Derek J. Van Booven
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Jackson Gamer
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Andrew Joseph
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Melanie Perez
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Oskar Zarnowski
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Meha Pandya
- Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Farquhar Honors College, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Fanny Collado
- Department of Veterans Affairs, Miami VA Healthcare System, Research Service, Miami, FL 33125, USA
- South Florida Veterans Affairs Foundation for Research and Education Inc., Fort Lauderdale, FL 33125, USA
| | - Nancy Klimas
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
- Department of Veterans Affairs, Miami VA Healthcare System, Research Service, Miami, FL 33125, USA
| | - Elisa Oltra
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain
| | - Lubov Nathanson
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
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5
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Jean-Pierre M, Michalovicz LT, Kelly KA, O'Callaghan JP, Nathanson L, Klimas N, J. A. Craddock T. A pilot reverse virtual screening study suggests toxic exposures caused long-term epigenetic changes in Gulf War Illness. Comput Struct Biotechnol J 2022; 20:6206-6213. [DOI: 10.1016/j.csbj.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
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Banga R, Banga V, Eltalla A, Shahin L, Parag S, Naim M, Iyer E, Kumrah N, Zacharias B, Nathanson L, Beljanski V. Effects of autophagy modulators tamoxifen and chloroquine on the expression profiles of long non-coding RNAs in MIAMI cells exposed to IFNγ. PLoS One 2022; 17:e0266179. [PMID: 35446871 PMCID: PMC9022845 DOI: 10.1371/journal.pone.0266179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/15/2022] [Indexed: 11/18/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) can be utilized clinically for treatment of conditions that result from excessive inflammation. In a pro-inflammatory environment, MSCs adopt an anti-inflammatory phenotype resulting in immunomodulation. A sub-type of MSCs referred to as “marrow-isolated adult multilineage inducible” (MIAMI) cells, which were isolated from bone marrow, were utilized to show that the addition of autophagy modulators, tamoxifen (TX) or chloroquine (CQ), can alter how MIAMI cells respond to IFNγ exposure in vitro resulting in an increased immunoregulatory capacity of the MIAMI cells. Molecularly, it was also shown that TX and CQ each alter both the levels of immunomodulatory genes and microRNAs which target such genes. However, the role of other non-coding RNAs (ncRNAs) such as long non-coding RNAs (lncRNAs) in regulating the response of MSCs to inflammation has been poorly studied. Here, we utilized transcriptomics and data mining to analyze the putative roles of various differentially regulated lncRNAs in MIAMI cells exposed to IFNγ with (or without) TX or CQ. The aim of this study was to investigate how the addition of TX and CQ alters lncRNA levels and evaluate how such changes could alter previously observed TX- and CQ-driven changes to the immunomodulatory properties of MIAMI cells. Data analysis revealed 693 long intergenic non-coding RNAS (lincRNAs), 480 pseudogenes, and 642 antisense RNAs that were differentially regulated with IFNγ, IFNγ+TX and IFNγ+CQ treatments. Further analysis of these RNA species based on the existing literature data revealed 6 antisense RNAs, 2 pseudogenes, and 5 lincRNAs that have the potential to modulate MIAMI cell’s response to IFNγ treatment. Functional analysis of these genomic species based on current literature linking inflammatory response and ncRNAs indicated their potential for regulation of several key pro- and anti-inflammatory responses, including NFκB signaling, cytokine secretion and auto-immune responses. Overall, this work found potential involvement of multiple pro-and anti-inflammatory pathways and molecules in modulating MIAMI cells’ response to inflammation.
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Affiliation(s)
- Rajkaran Banga
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Veerkaran Banga
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Amr Eltalla
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Lauren Shahin
- Dr Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Sonam Parag
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Maha Naim
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Easha Iyer
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Neha Kumrah
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Brian Zacharias
- Department of Biological Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, Davie, Florida
| | - Lubov Nathanson
- Dr Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, Florida
- Institute for Neuroimmune Medicine, Dr Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, Florida
| | - Vladimir Beljanski
- Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
- Cell Therapy Institute, Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, Florida
- * E-mail:
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González-Cebrián A, Almenar-Pérez E, Xu J, Yu T, Huang WE, Giménez-Orenga K, Hutchinson S, Lodge T, Nathanson L, Morten KJ, Ferrer A, Oltra E. Diagnosis of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome With Partial Least Squares Discriminant Analysis: Relevance of Blood Extracellular Vesicles. Front Med (Lausanne) 2022; 9:842991. [PMID: 35433768 PMCID: PMC9011062 DOI: 10.3389/fmed.2022.842991] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 02/21/2022] [Indexed: 12/25/2022] Open
Abstract
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), a chronic disease characterized by long-lasting persistent debilitating widespread fatigue and post-exertional malaise, remains diagnosed by clinical criteria. Our group and others have identified differentially expressed miRNA profiles in the blood of patients. However, their diagnostic power individually or in combinations seems limited. A Partial Least Squares-Discriminant Analysis (PLS-DA) model initially based on 817 variables: two demographic, 34 blood analytic, 136 PBMC miRNAs, 639 Extracellular Vesicle (EV) miRNAs, and six EV features, selected an optimal number of five components, and a subset of 32 regressors showing statistically significant discriminant power. The presence of four EV-features (size and z-values of EVs prepared with or without proteinase K treatment) among the 32 regressors, suggested that blood vesicles carry relevant disease information. To further explore the features of ME/CFS EVs, we subjected them to Raman micro-spectroscopic analysis, identifying carotenoid peaks as ME/CFS fingerprints, possibly due to erythrocyte deficiencies. Although PLS-DA analysis showed limited capacity of Raman fingerprints for diagnosis (AUC = 0.7067), Raman data served to refine the number of PBMC miRNAs from our previous model still ensuring a perfect classification of subjects (AUC=1). Further investigations to evaluate model performance in extended cohorts of patients, to identify the precise ME/CFS EV components detected by Raman and to reveal their functional significance in the disease are warranted.
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Affiliation(s)
- Alba González-Cebrián
- Grupo de Ingeniería Estadística Multivariante, Departamento de Estadística e Investigación Operativa Aplicadas y Calidad, Universitat Politècnica de València, Valencia, Spain
| | - Eloy Almenar-Pérez
- Department of Pathology, School of Health Sciences, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
- Nuffield Department of Women's and Reproductive Health, The Women Centre, University of Oxford, Oxford, United Kingdom
| | - Jiabao Xu
- Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Tong Yu
- Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Wei E. Huang
- Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Karen Giménez-Orenga
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
| | - Sarah Hutchinson
- Nuffield Department of Women's and Reproductive Health, The Women Centre, University of Oxford, Oxford, United Kingdom
| | - Tiffany Lodge
- Nuffield Department of Women's and Reproductive Health, The Women Centre, University of Oxford, Oxford, United Kingdom
| | - Lubov Nathanson
- Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
- Institute for Neuro Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Karl J. Morten
- Nuffield Department of Women's and Reproductive Health, The Women Centre, University of Oxford, Oxford, United Kingdom
| | - Alberto Ferrer
- Grupo de Ingeniería Estadística Multivariante, Departamento de Estadística e Investigación Operativa Aplicadas y Calidad, Universitat Politècnica de València, Valencia, Spain
| | - Elisa Oltra
- Department of Pathology, School of Health Sciences, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
- Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
- *Correspondence: Elisa Oltra ; orcid.org/0000-0003-0598-2907
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8
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Cohen DE, Sullivan KA, McNeil RB, Klimas NG, McNeil R, Ashford W, Bested A, Bunker J, Cheema A, Cohen D, Cook D, Cournoyer J, Craddock T, Golier J, Hardie A, Helmer D, Lindheimer JB, Lloyd PJ, Kerr K, Krengel M, Nadkarni S, Nugent S, Paris B, Reinhard M, Rumm P, Schneiderman A, Sims KJ, Steele L, Turner M, Sullivan K, Abdullah L, Abreu M, Abu-Donia M, Aenlle K, Arocho J, Balbin E, Baraniuk J, Block K, Block M, DeBeer B, Engdahl B, Filipov N, Fletcher MA, Kalasinsky V, Kokkotou E, Lidie K, Little D, Loging W, Morris M, Nathanson L, Nichols MD, Pasinetti G, Shungu D, Waziry P, VanLeeuwen J, Younger J, Klimas N. A common language for Gulf War Illness (GWI) research studies: GWI common data elements. Life Sci 2021; 290:119818. [PMID: 34352259 DOI: 10.1016/j.lfs.2021.119818] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 11/17/2022]
Abstract
AIMS The Gulf War Illness programs (GWI) of the United States Department of Veteran Affairs and the Department of Defense Congressionally Directed Medical Research Program collaborated with experts to develop Common Data Elements (CDEs) to standardize and systematically collect, analyze, and share data across the (GWI) research community. MAIN METHODS A collective working group of GWI advocates, Veterans, clinicians, and researchers convened to provide consensus on instruments, case report forms, and guidelines for GWI research. A similar initiative, supported by the National Institute of Neurologic Disorders and Stroke (NINDS) was completed for a comparative illness, Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), and provided the foundation for this undertaking. The GWI working group divided into two sub-groups (symptoms and systems assessment). Both groups reviewed the applicability of instruments and forms recommended by the NINDS ME/CFS CDE to GWI research within specific domains and selected assessments of deployment exposures. The GWI CDE recommendations were finalized in March 2018 after soliciting public comments. KEY FINDINGS GWI CDE recommendations are organized in 12 domains that include instruments, case report forms, and guidelines. Recommendations were categorized as core (essential), supplemental-highly recommended (essential for specified conditions, study types, or designs), supplemental (commonly collected, but not required), and exploratory (reasonable to use, but require further validation). Recommendations will continually be updated as GWI research progresses. SIGNIFICANCE The GWI CDEs reflect the consensus recommendations of GWI research community stakeholders and will allow studies to standardize data collection, enhance data quality, and facilitate data sharing.
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Affiliation(s)
- Devra E Cohen
- Miami VA Healthcare System, Miami, FL, United States; Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States.
| | - Kimberly A Sullivan
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, United States
| | | | - Nancy G Klimas
- Miami VA Healthcare System, Miami, FL, United States; Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | | | | | | | - Wes Ashford
- War Related Illness and Injury Study Center, VA Palo Healthcare System, Palo Alto, CA, United States
| | - Alison Bested
- Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - James Bunker
- National Gulf War Resource Center, Inc., Topeka, KS, United States
| | | | - Devra Cohen
- Miami VA Healthcare System, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Dane Cook
- University of Wisconsin-Madison, Madison, WI, United States
| | | | - Travis Craddock
- Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Julia Golier
- James J. Peters VA Medical Center; Icahn School of Medicine at Mount Sinai, Bronx, NY, United States
| | - Anthony Hardie
- Veterans for Common Sense and former U.S. Army, Bradenton, FL, United States
| | - Drew Helmer
- War Related Illness and Injury Study Center, VA New Jersey Health Care System, East Orange, NJ, United States
| | - Jacob B Lindheimer
- William S. Middleton Veterans Memorial Hospital, University of Wisconsin- Madison, Madison, WI, United States
| | | | | | - Maxine Krengel
- Boston VA Healthcare System; Boston University, Boston, MA, United States
| | - Shree Nadkarni
- War Related Illness and Injury Study Center, VA New Jersey Health Care System, East Orange, NJ, United States
| | - Shannon Nugent
- VA Portland Health Care System, Portland, OR, United States
| | - Bonnie Paris
- VA Information Resource Center (VIReC), Hines, IL, United States
| | - Matthew Reinhard
- War Related Illness and Injury Study Center, Washington DC VA Medical Center, Washington, DC, United States
| | - Peter Rumm
- US Department of Veterans Affairs, Washington, DC, United States
| | | | - Kellie J Sims
- VA Cooperative Studies Program Epidemiology Center, Durham, NC, United States
| | - Lea Steele
- Baylor College of Medicine, Houston, TX, United States
| | - Marsha Turner
- Durham VA Cooperative Studies Program, Durham, NC, United States
| | | | | | | | - Maria Abreu
- Miami VA Healthcare System, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | | | - Kristina Aenlle
- Miami VA Healthcare System, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Jimmy Arocho
- United States Army, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Elizabeth Balbin
- Miami VA Healthcare System, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | | | - Karen Block
- Office of Research and Development, US Department of Veterans Affairs, Washington, DC, United States
| | | | - Bryann DeBeer
- Texas A&M Health Science Center, Central Texas Veterans Healthcare System, Waco, TX, United States
| | - Brian Engdahl
- Minneapolis VA Health Care System, University of Minnesota, Minneapolis, MN, United States
| | | | - Mary Ann Fletcher
- Miami VA Healthcare System, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Victor Kalasinsky
- Office of Research and Development, US Department of Veterans Affairs, Washington, DC, United States
| | - Efi Kokkotou
- Harvard University, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | | | | | | | - Marianna Morris
- Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Lubov Nathanson
- Nova Southeastern University, Ft. Lauderdale, FL, United States
| | | | - Giulio Pasinetti
- Icahn School of Medicine at Mount Sinai, Bronx, NY, United States
| | - Dikoma Shungu
- Weill Cornell Medical Center, New York, NY, United States
| | - Paula Waziry
- Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Jon VanLeeuwen
- University of California, VA Research Advisory Committee on Gulf War Veterans' Illnesses, San Francisco, CA, United States
| | - Jarred Younger
- The University of Alabama, Birmingham, AL, United States
| | | | - Nancy Klimas
- Miami VA Healthcare System, Nova Southeastern University, Ft. Lauderdale, FL, United States
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Van Booven D, Zarnowski O, Perez M, Sarria L, Collado F, Hansotia K, Riegle S, Finger T, Fletcher MA, Klimas NG, Nathanson L. The effect of stress on the transcriptomes of circulating immune cells in patients with Gulf War Illness. Life Sci 2021; 281:119719. [PMID: 34144055 DOI: 10.1016/j.lfs.2021.119719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/29/2022]
Abstract
AIMS In an effort to gain further insight into the underlying mechanisms tied to disease onset and progression of Gulf War Illness (GWI), our team evaluated GWI patient response to stress utilizing RNA-Seq. MAIN METHODS The protocol included blood collection before exercise challenge (baseline), at maximal exertion, and after exercise challenge (recovery - four hours post-exercise challenge). Peripheral blood mononuclear cell (PBMC) transcriptomics data were analyzed to understand why GWI patients process stressors differently from their healthy counterparts. KEY FINDINGS Our findings validate previously identified dysregulation of immune and inflammatory pathways among GWI patients as well as highlight novel immune and inflammatory markers of disease activity. These results provide a foundation for future research efforts in understanding GWI pathophysiology and creating targeted treatments. SIGNIFICANCE Gulf War Illness is a complex, chronic, and debilitating multi-system illness impacting 25%-30% of the U.S. troops deployed to the 1990-1991 Gulf War. The condition is characterized by medically unexplained fatigue and affects multiple organ systems. Because the underlying mechanisms are largely unknown, patients receive symptom-based treatment, rather than targeting fundamental biological processes. To the best of our knowledge, this is the first study that applies RNA-Seq to analyze the effect of GWI, and the response to stressors in GWI, on the transcriptomic changes in circulating immune cells.
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Affiliation(s)
- Derek Van Booven
- Dr. J. P. Hussman Institute for Human Genomics Miller School of Medicine University of Miami, Miami, FL, United States of America
| | - Oskar Zarnowski
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America; Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America
| | - Melanie Perez
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America; Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America
| | - Leonor Sarria
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America
| | - Fanny Collado
- Department of Veterans Affairs, Miami VA Healthcare System, Research Service, Miami, FL, United States of America; South Florida Veterans Affairs Foundation for Research and Education Inc, Fort Lauderdale, FL, United States of America
| | - Kyle Hansotia
- Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, FL, United States of America; Farquhar Honors College, Nova Southeastern University, Fort Lauderdale, FL, United States of America
| | - Sean Riegle
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America
| | - Tali Finger
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America
| | - Mary Ann Fletcher
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America; Department of Veterans Affairs, Miami VA Healthcare System, Research Service, Miami, FL, United States of America
| | - Nancy G Klimas
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America; Department of Veterans Affairs, Miami VA Healthcare System, Research Service, Miami, FL, United States of America
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States of America.
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10
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Feliciano RDS, Atum ALB, Ruiz ÉGDS, Serra AJ, Antônio EL, Manchini MT, Silva JMA, Tucci PJF, Nathanson L, Morris M, Chavantes MC, Silva Júnior JA. Photobiomodulation Therapy on Myocardial Infarction in Rats: Transcriptional and Posttranscriptional Implications to Cardiac Remodeling. Lasers Surg Med 2021; 53:1247-1257. [PMID: 33846991 DOI: 10.1002/lsm.23407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 03/15/2021] [Accepted: 03/22/2021] [Indexed: 01/29/2023]
Abstract
BACKGROUND AND OBJECTIVES Induction of myocardial infarction (MI) in rats by occlusion of the left anterior descending coronary artery is an experimental model used in research to elucidate functional, structural, and molecular modifications associated with ischemic heart disease. Photobiomodulation therapy (PBMT) has become a therapeutic alternative by modulating various biological processes eliciting several effects, including anti-inflammatory and pro-proliferative actions. The main objective of this work was to evaluate the effect of PBMT in the modulation of transcriptional and post-transcriptional changes that occurred in myocardium signal transduction pathways after MI. STUDY DESIGN/MATERIALS AND METHODS Continuous wave (CW) non-thermal laser parameters were: 660 nm wavelength, power 15 mW, with a total energy of 0.9 J, fluence of 1.15 J/cm2 , spot size of 0.785 cm2 , and time of 60 seconds. Using in silico analysis, we selected and then, quantified the expression of messenger RNA (mRNA) of 47 genes of 9 signaling pathways associated with MI (angiogenesis, cell survival, hypertrophy, oxidative stress, apoptosis, extracellular matrix, calcium kinetics, cell metabolism, and inflammation). Messenger RNA expression quantification was performed in myocardial samples by polymerase chain reaction real-time array using TaqMan customized plates. RESULTS Our results evidenced that MI modified mRNA expression of several well-known biomarkers related to detrimental cardiac activity in almost all signaling pathways analyzed. However, PBMT reverted most of these transcriptional changes. More expressively, PBMT provoked a robust decrease in mRNA expression of molecules that participate in post-MI inflammation and ECM composition, such as IL-6, TNF receptor, TGFb1, and collagen I and III. Global microRNA (miRNA) expression analysis revealed that PBMT decreased miR-221, miR-34c, and miR-93 expressions post-MI, which are related to deleterious effects in cardiac remodeling. CONCLUSION Thus, the identification of transcriptional and post-transcriptional changes induced by PBMT may be used to interfere in the molecular dynamics of cardiac remodeling post-MI.
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Affiliation(s)
| | | | | | - Andrey Jorge Serra
- Universidade Federal de São Paulo, Rua Pedro de Toledo 709, Vila Clementino, São Paulo, SP, 04039-001, Brazil
| | - Ednei Luiz Antônio
- Universidade Federal de São Paulo, Rua Pedro de Toledo 709, Vila Clementino, São Paulo, SP, 04039-001, Brazil
| | | | | | - Paulo José Ferreira Tucci
- Universidade Federal de São Paulo, Rua Pedro de Toledo 709, Vila Clementino, São Paulo, SP, 04039-001, Brazil
| | - Lubov Nathanson
- Nova Southeastern University, 3301 College Avenue, Fort Lauderdale, Florida, 33314
| | - Mariana Morris
- Nova Southeastern University, 3301 College Avenue, Fort Lauderdale, Florida, 33314
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11
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Zhang M, Ceyhan Y, Kaftanovskaya EM, Vasquez JL, Vacher J, Knop FK, Nathanson L, Agoulnik AI, Ittmann MM, Agoulnik IU. INPP4B protects from metabolic syndrome and associated disorders. Commun Biol 2021; 4:416. [PMID: 33772116 PMCID: PMC7998001 DOI: 10.1038/s42003-021-01940-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 03/03/2021] [Indexed: 02/01/2023] Open
Abstract
A high fat diet and obesity have been linked to the development of metabolic dysfunction and the promotion of multiple cancers. The causative cellular signals are multifactorial and not yet completely understood. In this report, we show that Inositol Polyphosphate-4-Phosphatase Type II B (INPP4B) signaling protects mice from diet-induced metabolic dysfunction. INPP4B suppresses AKT and PKC signaling in the liver thereby improving insulin sensitivity. INPP4B loss results in the proteolytic cleavage and activation of a key regulator in de novo lipogenesis and lipid storage, SREBP1. In mice fed with the high fat diet, SREBP1 increases expression and activity of PPARG and other lipogenic pathways, leading to obesity and non-alcoholic fatty liver disease (NAFLD). Inpp4b-/- male mice have reduced energy expenditure and respiratory exchange ratio leading to increased adiposity and insulin resistance. When treated with high fat diet, Inpp4b-/- males develop type II diabetes and inflammation of adipose tissue and prostate. In turn, inflammation drives the development of high-grade prostatic intraepithelial neoplasia (PIN). Thus, INPP4B plays a crucial role in maintenance of overall metabolic health and protects from prostate neoplasms associated with metabolic dysfunction.
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Affiliation(s)
- Manqi Zhang
- grid.26009.3d0000 0004 1936 7961Department of Medicine, Duke University, Durham, NC USA
| | - Yasemin Ceyhan
- grid.65456.340000 0001 2110 1845Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL USA
| | - Elena M. Kaftanovskaya
- grid.65456.340000 0001 2110 1845Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL USA
| | - Judy L. Vasquez
- grid.65456.340000 0001 2110 1845Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL USA
| | - Jean Vacher
- grid.14848.310000 0001 2292 3357Department of Medicine, Institut de Recherches Cliniques de Montréal, Université de Montréal, Montréal, QC Canada
| | - Filip K. Knop
- grid.5254.60000 0001 0674 042XCenter for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark ,grid.5254.60000 0001 0674 042XNovo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark ,grid.419658.70000 0004 0646 7285Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Lubov Nathanson
- grid.261241.20000 0001 2168 8324Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL USA
| | - Alexander I. Agoulnik
- grid.65456.340000 0001 2110 1845Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL USA ,grid.39382.330000 0001 2160 926XDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX USA ,grid.65456.340000 0001 2110 1845Biomolecular Sciences Institute, Florida International University, Miami, FL USA
| | - Michael M. Ittmann
- grid.39382.330000 0001 2160 926XDepartment of Pathology and Immunology, Baylor College of Medicine, Houston, TX USA ,grid.413890.70000 0004 0420 5521Michael E. DeBakey Department of Veterans Affairs Medical Center, Houston, TX USA
| | - Irina U. Agoulnik
- grid.65456.340000 0001 2110 1845Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL USA ,grid.65456.340000 0001 2110 1845Biomolecular Sciences Institute, Florida International University, Miami, FL USA ,grid.39382.330000 0001 2160 926XDepartment of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX USA
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12
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Cheema AK, Sarria L, Bekheit M, Collado F, Almenar‐Pérez E, Martín‐Martínez E, Alegre J, Castro‐Marrero J, Fletcher MA, Klimas NG, Oltra E, Nathanson L. Unravelling myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): Gender-specific changes in the microRNA expression profiling in ME/CFS. J Cell Mol Med 2020; 24:5865-5877. [PMID: 32291908 PMCID: PMC7214164 DOI: 10.1111/jcmm.15260] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 12/15/2022] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a multisystem illness characterized by medically unexplained debilitating fatigue with suggested altered immunological state. Our study aimed to explore peripheral blood mononuclear cells (PBMCs) for microRNAs (miRNAs) expression in ME/CFS subjects under an exercise challenge. The findings highlight the immune response and inflammation links to differential miRNA expression in ME/CFS. The present study is particularly important in being the first to uncover the differences that exist in miRNA expression patterns in males and females with ME/CFS in response to exercise. This provides new evidence for the understanding of differential miRNA expression patterns and post-exertional malaise in ME/CFS. We also report miRNA expression pattern differences associating with the nutritional status in individuals with ME/CFS, highlighting the effect of subjects' metabolic state on molecular changes to be considered in clinical research within the NINDS/CDC ME/CFS Common Data Elements. The identification of gender-based miRNAs importantly provides new insights into gender-specific ME/CFS susceptibility and demands exploration of sex-suited ME/CFS therapeutics.
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Affiliation(s)
- Amanpreet K. Cheema
- Institute for Neuro Immune MedicineDr. Kiran C. Patel College of Osteopathic MedicineNova Southeastern UniversityFort LauderdaleFLUSA
- Department of NutritionDr. Kiran C. Patel College of Osteopathic MedicineNova Southeastern UniversityFort LauderdaleFLUSA
| | - Leonor Sarria
- Institute for Neuro Immune MedicineDr. Kiran C. Patel College of Osteopathic MedicineNova Southeastern UniversityFort LauderdaleFLUSA
| | - Mina Bekheit
- Halmos College of Natural Sciences and OceanographyNova Southeastern UniversityFort LauderdaleFLUSA
| | - Fanny Collado
- Department of Veterans AffairsMiami VA Healthcare System, Research ServiceMiamiFLUSA
- South Florida Veterans Affairs Foundation for Research and Education IncFort LauderdaleFLUSA
| | - Eloy Almenar‐Pérez
- Escuela de DoctoradoUniversidad Católica de Valencia San Vicente MártirValenciaSpain
| | | | - Jose Alegre
- Vall d'Hebron University HospitalVall d'Hebron Research InstituteUniversitat Autónoma de BarcelonaBarcelonaSpain
| | - Jesus Castro‐Marrero
- Vall d'Hebron University HospitalVall d'Hebron Research InstituteUniversitat Autónoma de BarcelonaBarcelonaSpain
| | - Mary A. Fletcher
- Institute for Neuro Immune MedicineDr. Kiran C. Patel College of Osteopathic MedicineNova Southeastern UniversityFort LauderdaleFLUSA
- Department of Veterans AffairsMiami VA Healthcare System, Research ServiceMiamiFLUSA
- South Florida Veterans Affairs Foundation for Research and Education IncFort LauderdaleFLUSA
| | - Nancy G. Klimas
- Institute for Neuro Immune MedicineDr. Kiran C. Patel College of Osteopathic MedicineNova Southeastern UniversityFort LauderdaleFLUSA
- Department of Veterans AffairsMiami VA Healthcare System, Research ServiceMiamiFLUSA
- South Florida Veterans Affairs Foundation for Research and Education IncFort LauderdaleFLUSA
| | - Elisa Oltra
- School of MedicineUniversidad Católica de Valencia San Vicente MártirValenciaSpain
| | - Lubov Nathanson
- Institute for Neuro Immune MedicineDr. Kiran C. Patel College of Osteopathic MedicineNova Southeastern UniversityFort LauderdaleFLUSA
- Department of NutritionDr. Kiran C. Patel College of Osteopathic MedicineNova Southeastern UniversityFort LauderdaleFLUSA
- Halmos College of Natural Sciences and OceanographyNova Southeastern UniversityFort LauderdaleFLUSA
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13
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Davidi D, Schechter M, Elhadi SA, Matatov A, Nathanson L, Sharon R. α-Synuclein Translocates to the Nucleus to Activate Retinoic-Acid-Dependent Gene Transcription. iScience 2020; 23:100910. [PMID: 32120069 PMCID: PMC7052517 DOI: 10.1016/j.isci.2020.100910] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/06/2020] [Accepted: 02/10/2020] [Indexed: 12/14/2022] Open
Abstract
α-Synuclein (α-Syn) protein is implicated in the pathogenesis of Parkinson disease (PD). It is primarily cytosolic and interacts with cell membranes. α-Syn also occurs in the nucleus. Here we investigated the mechanisms involved in nuclear translocation of α-Syn. We analyzed alterations in gene expression following induced α-Syn expression in SH-SY5Y cells. Analysis of upstream regulators pointed at alterations in transcription activity of retinoic acid receptors (RARs) and additional nuclear receptors. We show that α-Syn binds RA and translocates to the nucleus to selectively enhance gene transcription. Nuclear translocation of α-Syn is regulated by calreticulin and is leptomycin-B independent. Importantly, nuclear translocation of α-Syn following RA treatment enhances its toxicity in cultured neurons and the expression levels of PD-associated genes, including ATPase cation transporting 13A2 (ATP13A2) and PTEN-induced kinase1 (PINK1). The results link a physiological role for α-Syn in the regulation of RA-mediated gene transcription and its toxicity in the synucleinopathies.
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Affiliation(s)
- Dana Davidi
- Biochemistry and Molecular Biology, IMRIC, The Hebrew University-Hadassah Medical School, Ein Kerem, 9112001 Jerusalem, Israel
| | - Meir Schechter
- Biochemistry and Molecular Biology, IMRIC, The Hebrew University-Hadassah Medical School, Ein Kerem, 9112001 Jerusalem, Israel
| | - Suaad Abd Elhadi
- Biochemistry and Molecular Biology, IMRIC, The Hebrew University-Hadassah Medical School, Ein Kerem, 9112001 Jerusalem, Israel
| | - Adar Matatov
- Biochemistry and Molecular Biology, IMRIC, The Hebrew University-Hadassah Medical School, Ein Kerem, 9112001 Jerusalem, Israel
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Ronit Sharon
- Biochemistry and Molecular Biology, IMRIC, The Hebrew University-Hadassah Medical School, Ein Kerem, 9112001 Jerusalem, Israel.
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14
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Ovejero T, Sadones O, Sánchez-Fito T, Almenar-Pérez E, Espejo JA, Martín-Martínez E, Nathanson L, Oltra E. Activation of Transposable Elements in Immune Cells of Fibromyalgia Patients. Int J Mol Sci 2020; 21:E1366. [PMID: 32085571 PMCID: PMC7072917 DOI: 10.3390/ijms21041366] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/06/2020] [Accepted: 02/14/2020] [Indexed: 02/07/2023] Open
Abstract
Advancements in nucleic acid sequencing technology combined with an unprecedented availability of metadata have revealed that 45% of the human genome constituted by transposable elements (TEs) is not only transcriptionally active but also physiologically necessary. Dysregulation of TEs, including human retroviral endogenous sequences (HERVs) has been shown to associate with several neurologic and autoimmune diseases, including Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). However, no study has yet addressed whether abnormal expression of these sequences correlates with fibromyalgia (FM), a disease frequently comorbid with ME/CFS. The work presented here shows, for the first time, that, in fact, HERVs of the H, K and W types are overexpressed in immune cells of FM patients with or without comorbid ME/CFS. Patients with increased HERV expression (N = 14) presented increased levels of interferon (INF-β and INF-γ) but unchanged levels of TNF-α. The findings reported in this study could explain the flu-like symptoms FM patients present with in clinical practice, in the absence of concomitant infections. Future work aimed at identifying specific genomic loci differentially affected in FM and/or ME/CFS is warranted.
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Affiliation(s)
- Tamara Ovejero
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain;
| | | | - Teresa Sánchez-Fito
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, 46008 Valencia, Spain; (T.S.-F.); (E.A.-P.)
| | - Eloy Almenar-Pérez
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, 46008 Valencia, Spain; (T.S.-F.); (E.A.-P.)
| | - José Andrés Espejo
- School of Biotechnology, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain;
| | | | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Nova Southeastern University, Ft Lauderdale, FL 33314, USA;
| | - Elisa Oltra
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain;
- Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain
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15
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Almenar-Pérez E, Sarría L, Nathanson L, Oltra E. Assessing diagnostic value of microRNAs from peripheral blood mononuclear cells and extracellular vesicles in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. Sci Rep 2020; 10:2064. [PMID: 32034172 PMCID: PMC7005890 DOI: 10.1038/s41598-020-58506-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/15/2020] [Indexed: 02/08/2023] Open
Abstract
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a debilitating multisystemic disease of unknown etiology, affecting thousands of individuals worldwide. Its diagnosis still relies on ruling out medical problems leading to unexplained fatigue due to a complete lack of disease-specific biomarkers. Our group and others have explored the potential value of microRNA profiles (miRNomes) as diagnostic tools for this disease. However, heterogeneity of participants, low numbers, the variety of samples assayed, and other pre-analytical variables, have hampered the identification of disease-associated miRNomes. In this study, our team has evaluated, for the first time, ME/CFS miRNomes in peripheral blood mononuclear cells (PBMCs) and extracellular vesicles (EVs) from severely ill patients recruited at the monographic UK ME biobank to assess, using standard operating procedures (SOPs), blood fractions with optimal diagnostic power for a rapid translation of a miR-based diagnostic method into the clinic. Our results show that routine creatine kinase (CK) blood values, plasma EVs physical characteristics (including counts, size and zeta-potential), and a limited number of differentially expressed PBMC and EV miRNAs appear significantly associated with severe ME/CFS (p < 0.05). Gene enrichment analysis points to epigenetic and neuroimmune dysregulated pathways, in agreement with previous reports. Population validation by a cost-effective approach limited to these few potentially discriminating variables is granted.
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Affiliation(s)
- Eloy Almenar-Pérez
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
| | - Leonor Sarría
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA
| | - Elisa Oltra
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain.
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16
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Rossi F, Noren H, Sarria L, Schiller PC, Nathanson L, Beljanski V. Combination therapies enhance immunoregulatory properties of MIAMI cells. Stem Cell Res Ther 2019; 10:395. [PMID: 31852519 PMCID: PMC6921447 DOI: 10.1186/s13287-019-1515-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 11/14/2019] [Accepted: 11/28/2019] [Indexed: 01/08/2023] Open
Abstract
Background Mesenchymal stromal cells (MSCs), adult stromal cells most commonly isolated from bone marrow (BM), are being increasingly utilized in various therapeutic applications including tissue repair via immunomodulation, which is recognized as one of their most relevant mechanism of action. The promise of MSC-based therapies is somewhat hindered by their apparent modest clinical benefits, highlighting the need for approaches that would increase the efficacy of such therapies. Manipulation of cellular stress-response mechanism(s) such as autophagy, a catabolic stress-response mechanism, with small molecules prior to or during MSC injection could improve MSCs’ therapeutic efficacy. Unfortunately, limited information exists on how manipulation of autophagy affects MSCs’ response to inflammation and subsequent immunoregulatory properties. Methods In this study, we exposed BM-MSC precursor cells, “marrow-isolated adult multilineage inducible” (MIAMI) cells, to autophagy modulators tamoxifen (TX) or chloroquine (CQ), together with IFN-γ. Exposed cells then underwent RNA sequencing (RNAseq) to determine the effects of TX or CQ co-treatments on cellular response to IFN-γ at a molecular level. Furthermore, we evaluated their immunoregulatory capacity using activated CD4+ T cells by analyzing T cell activation marker CD25 and the percentage of proliferating T cells after co-culturing the cells with MIAMI cells treated or not with TX or CQ. Results RNAseq data indicate that the co-treatments alter both mRNA and protein levels of key genes responsible for MSCs’ immune-regulatory properties. Interestingly, TX and CQ also altered some of the microRNAs targeting such key genes. In addition, while IFN-γ treatment alone increased the surface expression of PD-L1 and secretion of IDO, this increase was further enhanced with TX. An improvement in MIAMI cells’ ability to decrease the activation and proliferation of T cells was also observed with TX, and to a lesser extent, CQ co-treatments. Conclusion Altogether, this work suggests that both TX and CQ have a potential to enhance MIAMI cells’ immunoregulatory properties. However, this enhancement is more pronounced with TX co-treatment.
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Affiliation(s)
- Fiorella Rossi
- Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, Davie, FL, 33328, USA
| | - Hunter Noren
- Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, Davie, FL, 33328, USA
| | - Leonor Sarria
- Institute for Neuroimmune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, FL, USA
| | - Paul C Schiller
- Department of Orthopaedics, University of Miami Miller School of Medicine, Miami, FL, USA.,Prime Cell Biomedical Inc., Miami, FL, USA
| | - Lubov Nathanson
- Institute for Neuroimmune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, FL, USA
| | - Vladimir Beljanski
- Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, Davie, FL, 33328, USA.
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17
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Grinnemo KH, Löfling M, Nathanson L, Baumgartner R, Ketelhuth DFJ, Beljanski V, Davies LC, Österholm C. Immunomodulatory effects of interferon-γ on human fetal cardiac mesenchymal stromal cells. Stem Cell Res Ther 2019; 10:371. [PMID: 31801632 PMCID: PMC6894330 DOI: 10.1186/s13287-019-1489-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 10/09/2019] [Accepted: 11/05/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Mesenchymal stromal cells (MSCs), due to their regenerative and immunomodulatory properties, are therapeutically used for diseases, including heart failure. As early gestational-phase embryonic tissues exhibit extraordinary regenerative potential, fetal MSCs exposed to inflammation offer a unique opportunity to evaluate molecular mechanisms underlying preferential healing, and investigate their inherent abilities to communicate with the immune system during development. The principal aim of this study was to evaluate the effects of interferon-γ (IFNγ) on the immunomodulatory effects of first-trimester human fetal cardiac (hfc)-MSCs. METHODS hfcMSCs (gestational week 8) were exposed to IFNγ, with subsequent analysis of the whole transcriptome, based on RNA sequencing. Exploration of surface-expressed immunoregulatory mediators and modulation of T cell responses were performed by flow cytometry. Presence and activity of soluble mediators were assessed by ELISA or high-performance liquid chromatography. RESULTS Stimulation of hfcMSCs with IFNγ revealed significant transcriptional changes, particularly in respect to the expression of genes belonging to antigen presentation pathways, cell cycle control, and interferon signaling. Expression of immunomodulatory genes and associated functional changes, including indoleamine 2,3-dioxygenase activity, and regulation of T cell activation and proliferation via programmed cell death protein (PD)-1 and its ligands PD-L1 and PD-L2, were significantly upregulated. These immunoregulatory molecules diminished rapidly upon withdrawal of inflammatory stimulus, indicating a high degree of plasticity by hfcMSCs. CONCLUSIONS To our knowledge, this is the first study performing a systematic evaluation of inflammatory responses and immunoregulatory properties of first-trimester cardiac tissue. In summary, our study demonstrates the dynamic responsiveness of hfcMSCs to inflammatory stimuli. Further understanding as to the immunoregulatory properties of hfcMSCs may be of benefit in the development of novel stromal cell therapeutics for cardiovascular disease.
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Affiliation(s)
- Karl-Henrik Grinnemo
- Department of Molecular Medicine and Surgery, Karolinska Institutet, BioClinicum J10:20, SE-171 64, Solna, Sweden
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Surgical Sciences, Uppsala University, Akademiska University Hospital, 751 85, Uppsala, Sweden
| | - Marie Löfling
- Department of Molecular Medicine and Surgery, Karolinska Institutet, BioClinicum J10:20, SE-171 64, Solna, Sweden
| | - Lubov Nathanson
- Institute for Neuroimmune Medicine, Dr Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Davie, FL, USA
| | - Roland Baumgartner
- Department of Medicine Solna, Cardiovascular Medicine Unit, Center for Molecular Medicine, Karolinska Institutet, SE-171 64, Solna, Sweden
| | - Daniel F J Ketelhuth
- Department of Medicine Solna, Cardiovascular Medicine Unit, Center for Molecular Medicine, Karolinska Institutet, SE-171 64, Solna, Sweden
| | - Vladimir Beljanski
- Cell Therapy Institute, Dr Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Davie, FL, USA
| | - Lindsay C Davies
- Department of Laboratory Medicine, Karolinska Institutet, SE-141 52, Huddinge, Sweden
| | - Cecilia Österholm
- Department of Molecular Medicine and Surgery, Karolinska Institutet, BioClinicum J10:20, SE-171 64, Solna, Sweden.
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18
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Yli-Karjanmaa M, Larsen KS, Fenger CD, Kristensen LK, Martin NA, Jensen PT, Breton A, Nathanson L, Nielsen PV, Lund MC, Carlsen SL, Gramsbergen JB, Finsen B, Stubbe J, Frich LH, Stolp H, Brambilla R, Anthony DC, Meyer M, Lambertsen KL. TNF deficiency causes alterations in the spatial organization of neurogenic zones and alters the number of microglia and neurons in the cerebral cortex. Brain Behav Immun 2019; 82:279-297. [PMID: 31505254 DOI: 10.1016/j.bbi.2019.08.195] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/21/2019] [Accepted: 08/29/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Although tumor necrosis factor (TNF) inhibitors are used to treat chronic inflammatory diseases, there is little information about how long-term inhibition of TNF affects the homeostatic functions that TNF maintains in the intact CNS. MATERIALS AND METHODS To assess whether developmental TNF deficiency causes alterations in the naïve CNS, we estimated the number of proliferating cells, microglia, and neurons in the developing neocortex of E13.5, P7 and adult TNF knock out (TNF-/-) mice and wildtype (WT) littermates. We also measured changes in gene and protein expression and monoamine levels in adult WT and TNF-/- mice. To evaluate long-term effects of TNF inhibitors, we treated healthy adult C57BL/6 mice with either saline, the selective soluble TNF inhibitor XPro1595, or the nonselective TNF inhibitor etanercept. We estimated changes in cell number and protein expression after two months of treatment. We assessed the effects of TNF deficiency on cognition by testing adult WT and TNF-/- mice and mice treated with saline, XPro1595, or etanercept with specific behavioral tasks. RESULTS TNF deficiency decreased the number of proliferating cells and microglia and increased the number of neurons. At the same time, TNF deficiency decreased the expression of WNT signaling-related proteins, specifically Collagen Triple Helix Repeat Containing 1 (CTHRC1) and Frizzled receptor 6 (FZD6). In contrast to XPro1595, long-term inhibition of TNF with etanercept in adult C57BL/6 mice decreased the number of BrdU+ cells in the granule cell layer of the dentate gyrus. Etanercept, but not XPro1595, also impaired spatial learning and memory in the Barnes maze memory test. CONCLUSION TNF deficiency impacts the organization of neurogenic zones and alters the cell composition in brain. Long-term inhibition of TNF with the nonselective TNF inhibitor etanercept, but not the soluble TNF inhibitor XPro1595, decreases neurogenesis in the adult mouse hippocampus and impairs learning and memory after two months of treatment.
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Affiliation(s)
- Minna Yli-Karjanmaa
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Kathrine Solevad Larsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Christina Dühring Fenger
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Lotte Kellemann Kristensen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Nellie Anne Martin
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Peter Toft Jensen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | | | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Pernille Vinther Nielsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Minna Christiansen Lund
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Stephanie Lindeman Carlsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Jan Bert Gramsbergen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Bente Finsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; BRIDGE - Brain Research - Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Jane Stubbe
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Lars Henrik Frich
- Orthopedic Research Unit, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Helen Stolp
- Department of Pharmacology, University of Oxford, Oxford, UK; Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Roberta Brambilla
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; BRIDGE - Brain Research - Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Odense, Denmark; The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Daniel Clive Anthony
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; Department of Pharmacology, University of Oxford, Oxford, UK; BRIDGE - Brain Research - Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Morten Meyer
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; BRIDGE - Brain Research - Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Kate Lykke Lambertsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark; BRIDGE - Brain Research - Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Odense, Denmark; Department of Neurology, Odense University Hospital, Odense, Denmark.
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Trivedi MS, Abreu MM, Sarria L, Rose N, Ahmed N, Beljanski V, Fletcher MA, Klimas NG, Nathanson L. Alterations in DNA Methylation Status Associated with Gulf War Illness. DNA Cell Biol 2019; 38:561-571. [DOI: 10.1089/dna.2018.4469] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Malav S. Trivedi
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, Florida
| | - Maria M. Abreu
- Miami VAMC, Miami, Florida
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Leonor Sarria
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Natasha Rose
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, Florida
| | - Nida Ahmed
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, Florida
| | - Vladimir Beljanski
- Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Mary A. Fletcher
- Miami VAMC, Miami, Florida
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Nancy G. Klimas
- Miami VAMC, Miami, Florida
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida
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20
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Almenar-Pérez E, Sánchez-Fito T, Ovejero T, Nathanson L, Oltra E. Impact of Polypharmacy on Candidate Biomarker miRNomes for the Diagnosis of Fibromyalgia and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Striking Back on Treatments. Pharmaceutics 2019; 11:pharmaceutics11030126. [PMID: 30889846 PMCID: PMC6471415 DOI: 10.3390/pharmaceutics11030126] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/26/2019] [Accepted: 03/05/2019] [Indexed: 12/14/2022] Open
Abstract
Fibromyalgia (FM) and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) are diseases of unknown etiology presenting complex and often overlapping symptomatology. Despite promising advances on the study of miRNomes of these diseases, no validated molecular diagnostic biomarker yet exists. Since FM and ME/CFS patient treatments commonly include polypharmacy, it is of concern that biomarker miRNAs are masked by drug interactions. Aiming at discriminating between drug-effects and true disease-associated differential miRNA expression, we evaluated the potential impact of commonly prescribed drugs on disease miRNomes, as reported by the literature. By using the web search tools SM2miR, Pharmaco-miR, and repoDB, we found a list of commonly prescribed drugs that impact FM and ME/CFS miRNomes and therefore could be interfering in the process of biomarker discovery. On another end, disease-associated miRNomes may incline a patient’s response to treatment and toxicity. Here, we explored treatments for diseases in general that could be affected by FM and ME/CFS miRNomes, finding a long list of them, including treatments for lymphoma, a type of cancer affecting ME/CFS patients at a higher rate than healthy population. We conclude that FM and ME/CFS miRNomes could help refine pharmacogenomic/pharmacoepigenomic analysis to elevate future personalized medicine and precision medicine programs in the clinic.
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Affiliation(s)
- Eloy Almenar-Pérez
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain.
| | - Teresa Sánchez-Fito
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain.
| | - Tamara Ovejero
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain.
| | - Lubov Nathanson
- Kiran C Patel College of Osteopathic Medicine, Nova Southeastern University, Ft Lauderdale, FL 33314, USA.
- Institute for Neuro Immune Medicine, Nova Southeastern University, Ft Lauderdale, FL 33314, USA.
| | - Elisa Oltra
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain.
- Unidad Mixta CIPF-UCV, Centro de Investigación Príncipe Felipe, 46012 Valencia, Spain.
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21
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Jeffrey MG, Nathanson L, Aenlle K, Barnes ZM, Baig M, Broderick G, Klimas NG, Fletcher MA, Craddock TJA. Treatment Avenues in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Split-gender Pharmacogenomic Study of Gene-expression Modules. Clin Ther 2019; 41:815-835.e6. [PMID: 30851951 DOI: 10.1016/j.clinthera.2019.01.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/09/2019] [Accepted: 01/18/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating multisymptom illness impacting up to 1 million people in the United States. As the pathogenesis and etiology of this complex condition are unclear, prospective treatments are limited. Identifying US Food and Drug Administration-approved drugs that may be repositioned as treatments for ME/CFS may offer a rapid and cost-effective solution. METHODS Here we used gene-expression data from 33 patients with Fukuda-defined ME/CFS (23 females, 10 males) and 21 healthy demographically comparable controls (15 females, 6 males) to identify differential expression of predefined gene-module sets based on nonparametric statistics. Differentially expressed gene modules were then annotated via over-representation analysis using the Consensus Pathway database. Differentially expressed modules were then regressed onto measures of fatigue and cross-referenced with drug atlas and pharmacogenomics databases to identify putative treatment agents. FINDINGS The top 1% of modules identified in males indicated small effect sizes in modules associated with immune regulation and mitochondrial dysfunction. In females, modules identified included those related to immune factors and cardiac/blood factors, returning effect sizes ranging from very small to intermediate (0.147 < Cohen δ < 0.532). Regression analysis indicated that B-cell receptors, T-cell receptors, tumor necrosis factor α, transforming growth factor β, and metabolic and cardiac modules were strongly correlated with multiple composite measures of fatigue. Cross-referencing identified genes with pharmacogenomics data indicated immunosuppressants as potential treatments of ME/CFS symptoms. IMPLICATIONS The findings from our analysis suggest that ME/CFS symptoms are perpetuated by immune dysregulation that may be approached via immune modulation-based treatment strategies.
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Affiliation(s)
- Mary G Jeffrey
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; College of Psychology, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Lubov Nathanson
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Clinical Immunology, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Kristina Aenlle
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Clinical Immunology, Nova Southeastern University, Ft. Lauderdale, FL, USA; Miami Veterans Affairs Medical Center, Miami, FL, USA
| | - Zachary M Barnes
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; Miami Veterans Affairs Medical Center, Miami, FL, USA; Miller School of Medicine, University of Miami, Miami, FL, USA; Diabetes Research Institute, University of Miami, Miami, FL, USA
| | - Mirza Baig
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Gordon Broderick
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; College of Psychology, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Clinical Immunology, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Center for Clinical Systems Biology, Rochester General Hospital, Rochester, NY, USA
| | - Nancy G Klimas
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; College of Psychology, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Clinical Immunology, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Mary Ann Fletcher
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Clinical Immunology, Nova Southeastern University, Ft. Lauderdale, FL, USA; Miami Veterans Affairs Medical Center, Miami, FL, USA
| | - Travis J A Craddock
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA; College of Psychology, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Clinical Immunology, Nova Southeastern University, Ft. Lauderdale, FL, USA; Department of Computer Science, Nova Southeastern University, Ft. Lauderdale, FL, USA.
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22
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Perez M, Jaundoo R, Hilton K, Del Alamo A, Gemayel K, Klimas NG, Craddock TJA, Nathanson L. Genetic Predisposition for Immune System, Hormone, and Metabolic Dysfunction in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Pilot Study. Front Pediatr 2019; 7:206. [PMID: 31179255 PMCID: PMC6542994 DOI: 10.3389/fped.2019.00206] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 05/03/2019] [Indexed: 12/25/2022] Open
Abstract
Introduction: Myalgic Encephalomyelitis/ Chronic Fatigue Syndrome (ME/CFS) is a multifactorial illness of unknown etiology with considerable social and economic impact. To investigate a putative genetic predisposition to ME/CFS we conducted genome-wide single-nucleotide polymorphism (SNP) analysis to identify possible variants. Methods: 383 ME/CFS participants underwent DNA testing using the commercial company 23andMe. The deidentified genetic data was then filtered to include only non-synonymous and nonsense SNPs from exons and microRNAs, and SNPs close to splice sites. The frequencies of each SNP were calculated within our cohort and compared to frequencies from the Kaviar reference database. Functional annotation of pathway sets containing SNP genes with high frequency in ME/CFS was performed using over-representation analysis via ConsensusPathDB. Furthermore, these SNPs were also scored using the Combined Annotation Dependent Depletion (CADD) algorithm to gauge their deleteriousness. Results: 5693 SNPs were found to have at least 10% frequency in at least one cohort (ME/CFS or reference) and at least two-fold absolute difference for ME/CFS. Functional analysis identified the majority of SNPs as related to immune system, hormone, metabolic, and extracellular matrix organization. CADD scoring identified 517 SNPs in these pathways that are among the 10% most deleteriousness substitutions to the human genome.
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Affiliation(s)
- Melanie Perez
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Rajeev Jaundoo
- Department of Psychology and Neuroscience, Nova Southeastern University, Fort Lauderdale, FL, United States.,Institute for Neuro Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Kelly Hilton
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Ana Del Alamo
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States.,Institute for Neuro Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Kristina Gemayel
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Nancy G Klimas
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States.,Institute for Neuro Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States.,Veterans Affairs Medical Center, Miami, FL, United States
| | - Travis J A Craddock
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States.,Department of Psychology and Neuroscience, Nova Southeastern University, Fort Lauderdale, FL, United States.,Institute for Neuro Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States.,Department of Computer Science, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Lubov Nathanson
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States.,Institute for Neuro Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
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Zhang M, Suarez E, Vasquez JL, Nathanson L, Peterson LE, Rajapakshe K, Basil P, Weigel NL, Coarfa C, Agoulnik IU. Inositol polyphosphate 4-phosphatase type II regulation of androgen receptor activity. Oncogene 2018; 38:1121-1135. [PMID: 30228349 PMCID: PMC6377303 DOI: 10.1038/s41388-018-0498-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 07/05/2018] [Accepted: 08/24/2018] [Indexed: 11/18/2022]
Abstract
Activation and transcriptional reprogramming of AR in advanced prostate cancer frequently coincides with the loss of two tumor suppressors, INPP4B and PTEN, which are highly expressed in human and mouse prostate epithelium. While regulation of AR signaling by PTEN has been described by multiple groups, it is not known whether the loss of INPP4B affects AR activity. Using prostate cancer cell lines we showed that INPP4B regulates AR transcriptional activity and the oncogenic signaling pathways Akt and PKC. Analysis of gene expression in prostate cancer patient cohorts showed a positive correlation between INPP4B expression and both AR mRNA levels and AR transcriptional output. Using an Inpp4b-/- mouse model, we demonstrated that INPP4B suppresses Akt and PKC signaling pathways and modulates AR transcriptional activity in normal mouse prostate. Remarkably, PTEN protein levels and phosphorylation of S380 were the same in Inpp4b-/- and WT males, suggesting that the observed changes were due exclusively to the loss of INPP4B. Our data show that INPP4B modulates AR activity in normal prostate and its loss contributes to the AR-dependent transcriptional profile in prostate cancer.
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Affiliation(s)
- Manqi Zhang
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL, 33199, USA
| | - Egla Suarez
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Judy L Vasquez
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | | | - Leif E Peterson
- Center for Biostatistics, Houston Methodist Research Institute, Houston, TX, USA
| | - Kimal Rajapakshe
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Paul Basil
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Nancy L Weigel
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Cristian Coarfa
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Irina U Agoulnik
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA. .,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA. .,Biomolecular Science Institute, School of Integrated Science and Humanity, Florida International University, Miami, FL, 33199, USA.
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24
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Johnstone AL, O'Reilly JJ, Patel AJ, Guo Z, Andrade NS, Magistri M, Nathanson L, Esanov R, Miller BH, Turecki G, Brothers SP, Zeier Z, Wahlestedt C. EZH1 is an antipsychotic-sensitive epigenetic modulator of social and motivational behavior that is dysregulated in schizophrenia. Neurobiol Dis 2018; 119:149-158. [PMID: 30099093 DOI: 10.1016/j.nbd.2018.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 07/07/2018] [Accepted: 08/08/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND With the capacity to modulate gene networks in an environmentally-sensitive manner, the role of epigenetic systems in mental disorders has come under intense investigation. Dysregulation of epigenetic effectors, including microRNAs and histone-modifying enzymes, may better explain the role of environmental risk factors and the observed heritability rate that cannot be fully attributed to known genetic risk alleles. Here, we aimed to identify novel epigenetic targets of the schizophrenia-associated microRNA 132 (miR-132). METHODS Histone modifications were quantified by immunodetection in response to viral-mediated overexpression of miR-132 while a luminescent reporter system was used to validate targets of miR-132 in vitro. Genome-wide profiling, quantitative PCR and NanoSting were used to quantify gene expression in post-mortem human brains, neuronal cultures and prefrontal cortex (PFC) of mice chronically exposed to antipsychotics. Following viral-mediated depletion of Enhancer of Zeste 1 (EZH1) in the murine PFC, behaviors including sociability and motivation were assessed using a 3-chambered apparatus and forced-swim test, respectively. RESULTS Overexpression of miR-132 decreased global histone 3 lysine 27 tri-methylation (H3K27me3), a repressive epigenetic mark. Moreover, the polycomb-associated H3K27 methyltransferase, EZH1, is regulated by miR-132 and upregulated in the PFC of schizophrenics. Unlike its homolog EZH2, expression of EZH1 in the murine PFC decreased following chronic exposure to antipsychotics. Viral-mediated depletion of EZH1 in the mouse PFC attenuated sociability, enhanced motivational behaviors, and affected gene expression pathways related to neurotransmission and behavioral phenotypes. CONCLUSIONS EZH1 is dysregulated in schizophrenia, sensitive to antipsychotic medications, and a brain-enriched miR-132 target that controls neurobehavioral phenotypes.
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Affiliation(s)
- Andrea L Johnstone
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA; EpiCypher, Durham, NC, USA
| | - Jiaqi J O'Reilly
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA; Institute for Biomedical Sciences, George Washington University, Washington, DC, USA
| | - Annika J Patel
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Zhihong Guo
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nadja S Andrade
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Marco Magistri
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Rustam Esanov
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA; Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Brooke H Miller
- McKnight Brain Institute and Department of Psychiatry, University of Florida College of Medicine, Gainesville, FL, USA
| | | | - Shaun P Brothers
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Zane Zeier
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Claes Wahlestedt
- The Center for Therapeutic Innovation and Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA.
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25
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Trivedi MS, Oltra E, Sarria L, Rose N, Beljanski V, Fletcher MA, Klimas NG, Nathanson L. Identification of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome-associated DNA methylation patterns. PLoS One 2018; 13:e0201066. [PMID: 30036399 PMCID: PMC6056050 DOI: 10.1371/journal.pone.0201066] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/07/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a complex condition involving multiple organ systems and characterized by persistent/relapsing debilitating fatigue, immune dysfunction, neurological problems, and other symptoms not curable for at least 6 months. Disruption of DNA methylation patterns has been tied to various immune and neurological diseases; however, its status in ME/CFS remains uncertain. Our study aimed at identifying changes in the DNA methylation patterns that associate with ME/CFS. METHODS We extracted genomic DNA from peripheral blood mononuclear cells from 13 ME/CFS study subjects and 12 healthy controls and measured global DNA methylation by ELISA-like method and site-specific methylation status using Illumina MethylationEPIC microarrays. Pyrosequencing validation included 33 ME/CFS cases and 31 controls from two geographically distant cohorts. RESULTS Global DNA methylation levels of ME/CFS cases were similar to those of controls. However, microarray-based approach allowed detection of 17,296 differentially methylated CpG sites in 6,368 genes across regulatory elements and within coding regions of genes. Analysis of DNA methylation in promoter regions revealed 307 differentially methylated promoters. Ingenuity pathway analysis indicated that genes associated with differentially methylated promoters participated in at least 15 different pathways mostly related to cell signaling with a strong immune component. CONCLUSIONS This is the first study that has explored genome-wide epigenetic changes associated with ME/CFS using the advanced Illumina MethylationEPIC microarrays covering about 850,000 CpG sites in two geographically distant cohorts of ME/CFS cases and matched controls. Our results are aligned with previous studies that indicate a dysregulation of the immune system in ME/CFS. They also suggest a potential role of epigenetic de-regulation in the pathobiology of ME/CFS. We propose screening of larger cohorts of ME/CFS cases to determine the external validity of these epigenetic changes in order to implement them as possible diagnostic markers in clinical setting.
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Affiliation(s)
- Malav S. Trivedi
- College of Pharmacy, Nova Southeastern University, Fort Lauderdale, United States of America
| | - Elisa Oltra
- School of Medicine and Dentistry, Catholic University of Valencia, Valencia, Spain
| | - Leonor Sarria
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, United States of America
| | - Natasha Rose
- College of Pharmacy, Nova Southeastern University, Fort Lauderdale, United States of America
| | - Vladimir Beljanski
- Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, United States of America
| | - Mary Ann Fletcher
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, United States of America
- Miami VAMC, Miami, Florida, United States of America
| | - Nancy G. Klimas
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, United States of America
- Miami VAMC, Miami, Florida, United States of America
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, United States of America
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Berkowitz S, Collares F, Weinstein J, Nathanson L, Ahmed M. Abstract No. 609 Imaging beyond PACS: documenting clinical photographs in the electronic medical record with a mobile application. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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27
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Santana ET, Feliciano RDS, Serra AJ, Brigidio E, Antonio EL, Tucci PJF, Nathanson L, Morris M, Silva JA. Comparative mRNA and MicroRNA Profiling during Acute Myocardial Infarction Induced by Coronary Occlusion and Ablation Radio-Frequency Currents. Front Physiol 2016; 7:565. [PMID: 27932994 PMCID: PMC5123550 DOI: 10.3389/fphys.2016.00565] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 11/07/2016] [Indexed: 12/24/2022] Open
Abstract
The ligation of the left anterior descending coronary artery is the most commonly used experimental model to induce myocardial infarction (MI) in rodents. A high mortality in the acute phase and the heterogeneity of the size of the MI obtained are drawbacks recognized in this model. In an attempt to solve the problem, our group recently developed a new MI experimental model which is based on application of myocardial ablation radio-frequency currents (AB-RF) that yielded MI with homogeneous sizes and significantly reduce acute mortality. In addition, cardiac structural, and functional changes aroused by AB-RF were similar to those seen in animals with MI induced by coronary artery ligation. Herein, we compared mRNA expression of genes that govern post-MI milieu in occlusion and ablation models. We analyzed 48 mRNAs expressions of nine different signal transduction pathways (cell survival and metabolism signs, matrix extracellular, cell cycle, oxidative stress, apoptosis, calcium signaling, hypertrophy markers, angiogenesis, and inflammation) in rat left ventricle 1 week after MI generated by both coronary occlusion and AB-RF. Furthermore, high-throughput miRNA analysis was also assessed in both MI procedures. Interestingly, mRNA expression levels and miRNA expressions showed strong similarities between both models after MI, with few specificities in each model, activating similar signal transduction pathways. To our knowledge, this is the first comparison of genomic alterations of mRNA and miRNA contents after two different MI procedures and identifies key signaling regulators modulating the pathophysiology of these two models that might culminate in heart failure. Furthermore, these analyses may contribute with the current knowledge concerning transcriptional and post-transcriptional changes of AB-RF protocol, arising as an alternative and effective MI method that reproduces most changes seem in coronary occlusion.
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Affiliation(s)
- Eduardo T Santana
- Rehabilitation Department, Universidade Nove de Julho São Paulo, Brazil
| | - Regiane Dos Santos Feliciano
- Biophotonics Department, Universidade Nove de JulhoSão Paulo, Brazil; Medicine Department, Universidade Nove de JulhoSão Paulo, Brazil
| | - Andrey J Serra
- Biophotonics Department, Universidade Nove de Julho São Paulo, Brazil
| | - Eduardo Brigidio
- Medicine Department, Universidade Nove de Julho São Paulo, Brazil
| | - Ednei L Antonio
- Cardiac Physiology Department, Universidade Federal de São Paulo São Paulo, Brazil
| | - Paulo J F Tucci
- Cardiac Physiology Department, Universidade Federal de São Paulo São Paulo, Brazil
| | - Lubov Nathanson
- Institute for Neuro-Immune Medicine, Nova Southeastern University Fort Lauderdale, FL, USA
| | - Mariana Morris
- Institute for Neuro-Immune Medicine, Nova Southeastern University Fort Lauderdale, FL, USA
| | - José A Silva
- Medicine Department, Universidade Nove de Julho São Paulo, Brazil
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28
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Ramachandran K, Speer C, Nathanson L, Claros M, Singal R. Role of DNA Methylation in Cabazitaxel Resistance in Prostate Cancer. Anticancer Res 2016; 36:161-168. [PMID: 26722040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND/AIM Cabazitaxel is an approved second-line treatment for docetaxel-refractory metastatic castration-resistant prostate cancer. However, the median time to progression on cabazitaxel is 2.8 months. We aimed to determine whether DNA methylation plays a role in cabazitaxel resistance. MATERIALS AND METHODS DU145 cells, resistant to docetaxel and cabaxitaxel (DU145 10DRCR), were generated from cells resistant to 10 nM docetaxel (DU145 10DR). The effect of pre-treatment with 5-azacytidine was determined with regards to cabazitaxel sensitivity. Gene expression profiling was carried-out on DU145 10DR, DU145 10DRCR and DU145 10DRCR treated with 5-azacytidine. RESULTS Pre-treatment of cells with 5-azacytidine resulted in enhanced sensitivity to cabazitaxel. Gene expression profiling identified a subset of genes that may be regulated by DNA methylation. CONCLUSION Our results indicate that DNA methylation of pro-apoptotic and cell-cycle regulatory genes may contribute to cabazitaxel resistance and pre-treatment with 5-azacytidine may restore sensitivity to cabazitaxel in prostate cancer cells.
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Affiliation(s)
| | - Carl Speer
- Nova Southeastern University, Miami, FL, U.S.A
| | | | - Martha Claros
- Sylvester Cancer Center, University of Miami, Miami, FL, U.S.A
| | - Rakesh Singal
- Sylvester Cancer Center, University of Miami, Miami, FL, U.S.A.
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29
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Craddock TJA, Harvey JM, Nathanson L, Barnes ZM, Klimas NG, Fletcher MA, Broderick G. Using gene expression signatures to identify novel treatment strategies in gulf war illness. BMC Med Genomics 2015; 8:36. [PMID: 26156520 PMCID: PMC4495687 DOI: 10.1186/s12920-015-0111-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 06/26/2015] [Indexed: 12/12/2022] Open
Abstract
Background Gulf War Illness (GWI) is a complex multi-symptom disorder that affects up to one in three veterans of this 1991 conflict and for which no effective treatment has been found. Discovering novel treatment strategies for such a complex chronic illness is extremely expensive, carries a high probability of failure and a lengthy cycle time. Repurposing Food and Drug Administration approved drugs offers a cost-effective solution with a significantly abbreviated timeline. Methods Here, we explore drug re-purposing opportunities in GWI by combining systems biology and bioinformatics techniques with pharmacogenomic information to find overlapping elements in gene expression linking GWI to successfully treated diseases. Gene modules were defined based on cellular function and their activation estimated from the differential expression of each module’s constituent genes. These gene modules were then cross-referenced with drug atlas and pharmacogenomic databases to identify agents currently used successfully for treatment in other diseases. To explore the clinical use of these drugs in illnesses similar to GWI we compared gene expression patterns in modules that were significantly expressed in GWI with expression patterns in those same modules in other illnesses. Results We found 19 functional modules with significantly altered gene expression patterns in GWI. Within these modules, 45 genes were documented drug targets. Illnesses with highly correlated gene expression patterns overlapping considerably with GWI were found in 18 of the disease conditions studied. Brain, muscular and autoimmune disorders composed the bulk of these. Conclusion Of the associated drugs, immunosuppressants currently used in treating rheumatoid arthritis, and hormone based therapies were identified as the best available candidates for treating GWI symptoms. Electronic supplementary material The online version of this article (doi:10.1186/s12920-015-0111-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Travis J A Craddock
- Center for Psychological Studies, Nova Southeastern University, Fort Lauderdale, USA. .,Graduate School of Computer and Information Sciences, Nova Southeastern University, Fort Lauderdale, USA. .,Institute for Neuro-Immune Medicine, Nova Southeastern University, 3440 South University Drive, Fort Lauderdale, FL, 33328, USA. .,College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, USA. .,Department of Medicine, University of Alberta, Edmonton, Canada.
| | | | - Lubov Nathanson
- Institute for Neuro-Immune Medicine, Nova Southeastern University, 3440 South University Drive, Fort Lauderdale, FL, 33328, USA.,College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, USA
| | - Zachary M Barnes
- Institute for Neuro-Immune Medicine, Nova Southeastern University, 3440 South University Drive, Fort Lauderdale, FL, 33328, USA.,College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, USA.,Miller School of Medicine, University of Miami, Miami, USA.,Miami Veterans Affairs Medical Center, Miami, USA.,Diabetes Research Institute, University of Miami, Miami, USA
| | - Nancy G Klimas
- Institute for Neuro-Immune Medicine, Nova Southeastern University, 3440 South University Drive, Fort Lauderdale, FL, 33328, USA.,College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, USA.,Miller School of Medicine, University of Miami, Miami, USA.,Miami Veterans Affairs Medical Center, Miami, USA
| | - Mary Ann Fletcher
- Institute for Neuro-Immune Medicine, Nova Southeastern University, 3440 South University Drive, Fort Lauderdale, FL, 33328, USA.,College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, USA.,Miller School of Medicine, University of Miami, Miami, USA
| | - Gordon Broderick
- Center for Psychological Studies, Nova Southeastern University, Fort Lauderdale, USA.,Institute for Neuro-Immune Medicine, Nova Southeastern University, 3440 South University Drive, Fort Lauderdale, FL, 33328, USA.,College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, USA.,Department of Medicine, University of Alberta, Edmonton, Canada
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Humphries CE, Kohli MA, Nathanson L, Whitehead P, Beecham G, Martin E, Mash DC, Pericak-Vance MA, Gilbert J. Integrated Whole Transcriptome and DNA Methylation Analysis Identifies Gene Networks Specific to Late-Onset Alzheimer's Disease. ACTA ACUST UNITED AC 2015; 44:977-87. [DOI: 10.3233/jad-141989] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Crystal E. Humphries
- University of Miami, Miller School of Medicine, Dr. John T. Macdonald Foundation Department of Human Genetics, Miami, FL, USA
| | - Martin A. Kohli
- University of Miami, Miller School of Medicine, John P. Hussman Institute for Human Genomics, Miami, FL, USA
| | - Lubov Nathanson
- University of Miami, Miller School of Medicine, Department of Medicine, Miami, FL, USA
- Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Patrice Whitehead
- University of Miami, Miller School of Medicine, John P. Hussman Institute for Human Genomics, Miami, FL, USA
| | - Gary Beecham
- University of Miami, Miller School of Medicine, Dr. John T. Macdonald Foundation Department of Human Genetics, Miami, FL, USA
- University of Miami, Miller School of Medicine, John P. Hussman Institute for Human Genomics, Miami, FL, USA
| | - Eden Martin
- University of Miami, Miller School of Medicine, Dr. John T. Macdonald Foundation Department of Human Genetics, Miami, FL, USA
- University of Miami, Miller School of Medicine, John P. Hussman Institute for Human Genomics, Miami, FL, USA
| | - Deborah C. Mash
- University of Miami, Miller School of Medicine, Miami Brain Bank Endowment, FL, USA
| | - Margaret A. Pericak-Vance
- University of Miami, Miller School of Medicine, Dr. John T. Macdonald Foundation Department of Human Genetics, Miami, FL, USA
- University of Miami, Miller School of Medicine, John P. Hussman Institute for Human Genomics, Miami, FL, USA
| | - John Gilbert
- University of Miami, Miller School of Medicine, Dr. John T. Macdonald Foundation Department of Human Genetics, Miami, FL, USA
- University of Miami, Miller School of Medicine, John P. Hussman Institute for Human Genomics, Miami, FL, USA
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31
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Vance DD, Chen GL, Stoutenberg M, Myerburg RJ, Jacobs K, Nathanson L, Perry A, Seo D, Goldschmidt-Clermont PJ, Rampersaud E. Cardiac performance, biomarkers and gene expression studies in previously sedentary men participating in half-marathon training. BMC Sports Sci Med Rehabil 2014; 6:6. [PMID: 24552436 PMCID: PMC3996079 DOI: 10.1186/2052-1847-6-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 02/06/2014] [Indexed: 01/26/2023]
Abstract
Background The mechanisms through which exercise reduces cardiovascular disease are not fully understood. We used echocardiograms, cardiac biomarkers and gene expression to investigate cardiovascular effects associated with exercise training. Methods Nineteen sedentary men (22–37 years) completed a 17-week half-marathon training program. Serial measurements of resting heart rate, blood pressure, maximum oxygen consumption, lipids, C-reactive protein, cardiac troponin T, echocardiograms and blood for gene expression were obtained from baseline to peak training. Controls included 22 sedentary men who did not exercise. Results Among the training group, VO2 max increased from 37.1 to 42.0 ml/kg/min (p < 0.001). Significant changes were seen in left ventricular wall thickness and mass, stroke volume, resting heart rate and blood pressure (p < 0.001). The control group demonstrated no significant changes. Expression profiling in the training group identified 10 significantly over-expressed and 53 significantly under-expressed loci involved in inflammatory pathways. Dividing the training group into high and low responders based on percent change in VO2 max identified loci that differentiated these two groups at baseline and after training. Conclusion Intensive exercise training leads to significant increase in cardiac and hemodynamic performance, and significant changes in expression of genes involved in immune and inflammatory response.
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Affiliation(s)
- Danica D Vance
- John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA.,Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Gordon L Chen
- Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Mark Stoutenberg
- Department of Kinesiology and Sports Science, University of Miami, Miami, FL, USA.,Department of Epidemiology & Public Health, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Robert J Myerburg
- Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL, USA.,Department of Physiology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Kevin Jacobs
- Department of Kinesiology and Sports Science, University of Miami, Miami, FL, USA
| | - Lubov Nathanson
- John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA
| | - Arlette Perry
- Department of Kinesiology and Sports Science, University of Miami, Miami, FL, USA
| | - David Seo
- John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami, Miami, FL, USA
| | - Pascal J Goldschmidt-Clermont
- John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA.,Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Evadnie Rampersaud
- John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami, Miami, FL, USA
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Bracchi-Ricard V, Lambertsen KL, Ricard J, Nathanson L, Karmally S, Johnstone J, Ellman DG, Frydel B, McTigue DM, Bethea JR. Inhibition of astroglial NF-κB enhances oligodendrogenesis following spinal cord injury. J Neuroinflammation 2013; 10:92. [PMID: 23880092 PMCID: PMC3751509 DOI: 10.1186/1742-2094-10-92] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 07/12/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Astrocytes are taking the center stage in neurotrauma and neurological diseases as they appear to play a dominant role in the inflammatory processes associated with these conditions. Previously, we reported that inhibiting NF-κB activation in astrocytes, using a transgenic mouse model (GFAP-IκBα-dn mice), results in improved functional recovery, increased white matter preservation and axonal sparing following spinal cord injury (SCI). In the present study, we sought to determine whether this improvement, due to inhibiting NF-κB activation in astrocytes, could be the result of enhanced oligodendrogenesis in our transgenic mice. METHODS To assess oligodendrogenesis in GFAP-IκBα-dn compared to wild-type (WT) littermate mice following SCI, we used bromodeoxyuridine labeling along with cell-specific immuno-histochemistry, confocal microscopy and quantitative cell counts. To further gain insight into the underlying molecular mechanisms leading to increased white matter, we performed a microarray analysis in naïve and 3 days, 3 and 6 weeks following SCI in GFAP-IκBα-dn and WT littermate mice. RESULTS Inhibition of astroglial NF-κB in GFAP-IκBα-dn mice resulted in enhanced oligodendrogenesis 6 weeks following SCI and was associated with increased levels of myelin proteolipid protein compared to spinal cord injured WT mice. The microarray data showed a large number of differentially expressed genes involved in inflammatory and immune response between WT and transgenic mice. We did not find any difference in the number of microglia/leukocytes infiltrating the spinal cord but did find differences in their level of expression of toll-like receptor 4. We also found increased expression of the chemokine receptor CXCR4 on oligodendrocyte progenitor cells and mature oligodendrocytes in the transgenic mice. Finally TNF receptor 2 levels were significantly higher in the transgenic mice compared to WT following injury. CONCLUSIONS These studies suggest that one of the beneficial roles of blocking NF-κB in astrocytes is to promote oligodendrogenesis through alteration of the inflammatory environment.
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Broderick G, Ben-Hamo R, Vashishtha S, Efroni S, Nathanson L, Barnes Z, Fletcher MA, Klimas N. Altered immune pathway activity under exercise challenge in Gulf War Illness: an exploratory analysis. Brain Behav Immun 2013. [PMID: 23201588 DOI: 10.1016/j.bbi.2012.11.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Though potentially linked to the basic physiology of stress response we still have no clear understanding of Gulf War Illness (GWI), a debilitating illness presenting with a complex constellation of immune, endocrine and neurological symptoms. Here we compared male GWI (n=20) with healthy veterans (n=22) and subjects with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) (n=7). Blood was drawn during a Graded eXercise Test (GXT) prior to exercise, at peak effort (VO2 max) and 4-h post exercise. Affymetrix HG U133 plus 2.0 microarray gene expression profiling in peripheral blood mononuclear cells (PBMCs) was used to estimate activation of over 500 documented pathways. This was cast against ELISA-based measurement of 16 cytokines in plasma and flow cytometric assessment of lymphocyte populations and cytotoxicity. A 2-way ANOVA corrected for multiple comparisons (q statistic <0.05) indicated significant increases in neuroendocrine-immune signaling and inflammatory activity in GWI, with decreased apoptotic signaling. Conversely, cell cycle progression and immune signaling were broadly subdued in CFS. Partial correlation networks linking pathways with symptom severity via changes in immune cell abundance, function and signaling were constructed. Central to these were changes in IL-10 and CD2+ cell abundance and their link to two pathway clusters. The first consisted of pathways supporting neuronal development and migration whereas the second was related to androgen-mediated activation of NF-κB. These exploratory results suggest an over-expression of known exercise response mechanisms as well as illness-specific changes that may involve an overlapping stress-potentiated neuro-inflammatory response.
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Affiliation(s)
- Gordon Broderick
- Department of Medicine, University of Alberta, Edmonton, Canada.
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Rampersaud E, Nathanson L, Farmer J, Meshbane K, Belton RL, Dressen A, Cuccaro M, Musto A, Daunert S, Deo S, Hudson N, Vance JM, Seo D, Mendez A, Dykxhoorn DM, Pericak-Vance MA, Goldschmidt-Clermont PJ. Genomic signatures of a global fitness index in a multi-ethnic cohort of women. Ann Hum Genet 2013; 77:147-57. [PMID: 23289938 DOI: 10.1111/ahg.12006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 09/17/2012] [Indexed: 11/30/2022]
Abstract
The rates of obesity and sedentary lifestyle are on a dramatic incline, with associated detrimental health effects among women in particular. Although exercise prescriptions are useful for overcoming these problems, success can be hampered by differential responsiveness among individuals in cardiovascular fitness indices (i.e. improvements in strength, lipids, VO(2) max). Genomic factors appear to play an important role in determining this inter-individual variation. We performed microarray analyses on mRNA in whole blood from 60 sedentary women from a multi-ethnic cohort who underwent 12 weeks of exercise, to identify gene subsets that were differentially expressed between individuals who experienced the greatest and least improvements in fitness. We identified 43 transcripts in 39 unique genes (FDR<10%; FC>1.5) whose expression increased the most in "high" versus "low" pre-menopausal female responders. These 39 genes were enriched in six biological pathways, including oxidative phosphorylation (p = 8.08 × 10(-3)). Several of the 39 genes (i.e. TIGD7, UQCRH, PSMA6, WDR12, TFB2M, USP15) have previously reported associations with fitness-related phenotypes. In summary, we identified gene signatures based on mRNA analysis that define responsiveness to exercise in a largely minority-based female cohort. Importantly, this study validates several genes/pathways previously associated with exercise responsiveness and extends these findings with additional novel genes.
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Affiliation(s)
- Evadnie Rampersaud
- John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA.
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McElroy JP, Krupp LB, Johnson BA, McCauley JL, Qi Z, Caillier SJ, Gourraud PA, Yu J, Nathanson L, Belman AL, Hauser SL, Waubant E, Hedges DJ, Oksenberg JR. Copy number variation in pediatric multiple sclerosis. Mult Scler 2012; 19:1014-21. [PMID: 23239789 DOI: 10.1177/1352458512469696] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Pediatric onset multiple sclerosis (MS) accounts for 2-4% of all MS. It is unknown whether the disease shares the same underlying pathophysiology found in adult patients or an extreme early onset phenotype triggered by distinct biological mechanisms. It has been hypothesized that copy number variations (CNVs) may result in extreme early onset diseases because CNVs can have major effects on many genes in large genomic regions. OBJECTIVES AND METHODS The objective of the current research was to identify CNVs, with a specific focus on de novo CNVs, potentially causing early onset MS by competitively hybridizing 30 white non-Hispanic pediatric MS patients with each of their parents via comparative genomic hybridization (CGH) analysis on the Agilent 1M CGH array. RESULTS AND DISCUSSION We identified 10 CNVs not overlapping with any CNV regions currently reported in the Database of Genomic Variants (DGV). Fifty-five putatively de novo CNVs were also identified: all but one common in the DGV. We found the single rare CNV was a private variation harboring the SACS gene. SACS mutations cause autosomal-recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) disease. Additional clinical review revealed that the patient with the SACS gene CNV shared some features of both MS and ARSACS. CONCLUSIONS This is the first reported study analyzing pediatric MS CNVs. While not yielding causal variation in our initial pediatric dataset, our approach confirmed diagnosis of an ARSACS-like disease in addition to MS in the affected individual, which led to a more complete understanding of the patient's disease course and prognosis.
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Affiliation(s)
- J P McElroy
- Department of Neurology, University of California at San Francisco, USA.
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Piña Y, Houston SK, Murray TG, Koru-Sengul T, Decatur C, Scott WK, Nathanson L, Clarke J, Lampidis TJ. Retinoblastoma treatment: impact of the glycolytic inhibitor 2-deoxy-d-glucose on molecular genomics expression in LH(BETA)T(AG) retinal tumors. Clin Ophthalmol 2012; 6:817-30. [PMID: 22701083 PMCID: PMC3373226 DOI: 10.2147/opth.s29688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The purpose of this study was to evaluate the effect of 2-deoxy-D-glucose (2-DG) on the spatial distribution of the genetic expression of key elements involved in angiogenesis, hypoxia, cellular metabolism, and apoptosis in LH(BETA)T(AG) retinal tumors. METHODS The right eye of each LH(BETA)T(AG) transgenic mouse (n = 24) was treated with either two or six subconjunctival injections of 2-DG (500 mg/kg) or saline control at 16 weeks of age. A gene expression array analysis was performed on five different intratumoral regions (apex, center, base, anterior-lateral, and posterior-lateral) using Affymetrix GeneChip Mouse Gene 1.0 ST arrays. To test for treatment effects of each probe within each region, a two-way analysis of variance was used. RESULTS Significant differences between treatment groups (ie, 0, 2, and 6 injections) were found as well as differences among the five retinal tumor regions evaluated (P < 0.01). More than 100 genes were observed to be dysregulated by ≥2-fold difference in expression between the three treatment groups, and their dysregulation varied across the five regions assayed. Several genes involved in pathways important for tumor cell growth (ie, angiogenesis, hypoxia, cellular metabolism, and apoptosis) were identified. CONCLUSIONS 2-DG was found to significantly alter the gene expression in LH(BETA)T(AG) retinal tumor cells according to their location within the tumor as well as the treatment schedule. 2-DG's effects on genetic expression found here correlate with previous reported results on varied processes involved in its in vitro and in vivo activity in inhibiting tumor cell growth.
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Affiliation(s)
- Yolanda Piña
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
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Hedges DJ, Hamilton-Nelson KL, Sacharow SJ, Nations L, Beecham GW, Kozhekbaeva ZM, Butler BL, Cukier HN, Whitehead PL, Ma D, Jaworski JM, Nathanson L, Lee JM, Hauser SL, Oksenberg JR, Cuccaro ML, Haines JL, Gilbert JR, Pericak-Vance MA. Evidence of novel fine-scale structural variation at autism spectrum disorder candidate loci. Mol Autism 2012; 3:2. [PMID: 22472195 PMCID: PMC3352055 DOI: 10.1186/2040-2392-3-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 04/02/2012] [Indexed: 01/11/2023] Open
Abstract
Background Autism spectrum disorders (ASD) represent a group of neurodevelopmental disorders characterized by a core set of social-communicative and behavioral impairments. Gamma-aminobutyric acid (GABA) is the major inhibitory neurotransmitter in the brain, acting primarily via the GABA receptors (GABR). Multiple lines of evidence, including altered GABA and GABA receptor expression in autistic patients, indicate that the GABAergic system may be involved in the etiology of autism. Methods As copy number variations (CNVs), particularly rare and de novo CNVs, have now been implicated in ASD risk, we examined the GABA receptors and genes in related pathways for structural variation that may be associated with autism. We further extended our candidate gene set to include 19 genes and regions that had either been directly implicated in the autism literature or were directly related (via function or ancestry) to these primary candidates. For the high resolution CNV screen we employed custom-designed 244 k comparative genomic hybridization (CGH) arrays. Collectively, our probes spanned a total of 11 Mb of GABA-related and additional candidate regions with a density of approximately one probe every 200 nucleotides, allowing a theoretical resolution for detection of CNVs of approximately 1 kb or greater on average. One hundred and sixty-eight autism cases and 149 control individuals were screened for structural variants. Prioritized CNV events were confirmed using quantitative PCR, and confirmed loci were evaluated on an additional set of 170 cases and 170 control individuals that were not included in the original discovery set. Loci that remained interesting were subsequently screened via quantitative PCR on an additional set of 755 cases and 1,809 unaffected family members. Results Results include rare deletions in autistic individuals at JAKMIP1, NRXN1, Neuroligin4Y, OXTR, and ABAT. Common insertion/deletion polymorphisms were detected at several loci, including GABBR2 and NRXN3. Overall, statistically significant enrichment in affected vs. unaffected individuals was observed for NRXN1 deletions. Conclusions These results provide additional support for the role of rare structural variation in ASD.
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Affiliation(s)
- Dale J Hedges
- Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, 1501 NW 10 Ave, M-860, Miami, FL 33136, USA.
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Ricci M, Xu Y, Hammond HL, Willoughby DA, Nathanson L, Rodriguez MM, Vatta M, Lipshultz SE, Lincoln J. Myocardial alternative RNA splicing and gene expression profiling in early stage hypoplastic left heart syndrome. PLoS One 2012; 7:e29784. [PMID: 22299024 PMCID: PMC3267718 DOI: 10.1371/journal.pone.0029784] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Accepted: 12/05/2011] [Indexed: 12/22/2022] Open
Abstract
Hypoplastic Left Heart Syndrome (HLHS) is a congenital defect characterized by underdevelopment of the left ventricle and pathological compensation of the right ventricle. If untreated, HLHS is invariably lethal due to the extensive increase in right ventricular workload and eventual failure. Despite the clinical significance, little is known about the molecular pathobiological state of HLHS. Splicing of mRNA transcripts is an important regulatory mechanism of gene expression. Tissue specific alterations of this process have been associated with several cardiac diseases, however, transcriptional signature profiles related to HLHS are unknown. In this study, we performed genome-wide exon array analysis to determine differentially expressed genes and alternatively spliced transcripts in the right ventricle (RV) of six neonates with HLHS, compared to the RV and left ventricle (LV) from non-diseased control subjects. In HLHS, over 180 genes were differentially expressed and 1800 were differentially spliced, leading to changes in a variety of biological processes involving cell metabolism, cytoskeleton, and cell adherence. Additional hierarchical clustering analysis revealed that differential gene expression and mRNA splicing patterns identified in HLHS are unique compared to non-diseased tissue. Our findings suggest that gene expression and mRNA splicing are broadly dysregulated in the RV myocardium of HLHS neonates. In addition, our analysis identified transcriptome profiles representative of molecular biomarkers of HLHS that could be used in the future for diagnostic and prognostic stratification to improve patient outcome.
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Affiliation(s)
- Marco Ricci
- Division of Cardiothoracic Surgery, University of Miami Miller School of Medicine and Holtz Children's Hospital/Jackson Memorial Hospital, Miami, Florida, United States of America.
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Duncan RP, Nathanson L, Wilson ACC. Novel male-biased expression in paralogs of the aphid slimfast nutrient amino acid transporter expansion. BMC Evol Biol 2011; 11:253. [PMID: 21917168 PMCID: PMC3231810 DOI: 10.1186/1471-2148-11-253] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Accepted: 09/14/2011] [Indexed: 12/22/2022] Open
Abstract
Background A major goal of molecular evolutionary biology is to understand the fate and consequences of duplicated genes. In this context, aphids are intriguing because the newly sequenced pea aphid genome harbors an extraordinary number of lineage-specific gene duplications relative to other insect genomes. Though many of their duplicated genes may be involved in their complex life cycle, duplications in nutrient amino acid transporters appear to be associated rather with their essential amino acid poor diet and the intracellular symbiosis aphids rely on to compensate for dietary deficits. Past work has shown that some duplicated amino acid transporters are highly expressed in the specialized cells housing the symbionts, including a paralog of an aphid-specific expansion homologous to the Drosophila gene slimfast. Previous data provide evidence that these bacteriocyte-expressed transporters mediate amino acid exchange between aphids and their symbionts. Results We report that some nutrient amino acid transporters show male-biased expression. Male-biased expression characterizes three paralogs in the aphid-specific slimfast expansion, and the male-biased expression is conserved across two aphid species for at least two paralogs. One of the male-biased paralogs has additionally experienced an accelerated rate of non-synonymous substitutions. Conclusions This is the first study to document male-biased slimfast expression. Our data suggest that the male-biased aphid slimfast paralogs diverged from their ancestral function to fill a functional role in males. Furthermore, our results provide evidence that members of the slimfast expansion are maintained in the aphid genome not only for the previously hypothesized role in mediating amino acid exchange between the symbiotic partners, but also for sex-specific roles.
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Affiliation(s)
- Rebecca P Duncan
- Department of Biology, University of Miami, Coral Gables, FL 33146, USA
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Bürge M, Houston K, Francesconi A, O'Rourke N, Lee J, Macfarlane D, Wyld D, Hopkins G, Finch R, Nathanson L. 6524 POSTER Does the Addition of FDG-PET to the Standard Pre-operative Work up of Pancreatic Cancer Change Management – a Prospective Study. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71835-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Houston SK, Pina Y, Clarke J, Koru-Sengul T, Scott WK, Nathanson L, Schefler AC, Murray TG. Regional and temporal differences in gene expression of LH(BETA)T(AG) retinoblastoma tumors. Invest Ophthalmol Vis Sci 2011; 52:5359-68. [PMID: 21571674 DOI: 10.1167/iovs.10-6321] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
PURPOSE The purpose of this study was to evaluate by microarray the hypothesis that LH(BETA)T(AG) retinoblastoma tumors exhibit regional and temporal variations in gene expression. METHODS LH(BETA)T(AG) mice aged 12, 16, and 20 weeks were euthanatized (n = 9). Specimens were taken from five tumor areas (apex, anterior lateral, center, base, and posterior lateral). Samples were hybridized to gene microarrays. The data were preprocessed and analyzed, and genes with a P < 0.01, according to the ANOVA models, and a log(2)-fold change >2.5 were considered to be differentially expressed. Differentially expressed genes were analyzed for overlap with known networks by using pathway analysis tools. RESULTS There were significant temporal (P < 10(-8)) and regional differences in gene expression for LH(BETA)T(AG) retinoblastoma tumors. At P < 0.01 and log(2)-fold change >2.5, there were significant changes in gene expression of 190 genes apically, 84 genes anterolaterally, 126 genes posteriorly, 56 genes centrally, and 134 genes at the base. Differentially expressed genes overlapped with known networks, with significant involvement in regulation of cellular proliferation and growth, response to oxygen levels and hypoxia, regulation of cellular processes, cellular signaling cascades, and angiogenesis. CONCLUSIONS There are significant temporal and regional variations in the LH(BETA)T(AG) retinoblastoma model. Differentially expressed genes overlap with key pathways that may play pivotal roles in murine retinoblastoma development. These findings suggest the mechanisms involved in tumor growth and progression in murine retinoblastoma tumors and identify pathways for analysis at a functional level, to determine significance in human retinoblastoma. Microarray analysis of LH(BETA)T(AG) retinal tumors showed significant regional and temporal variations in gene expression, including dysregulation of genes involved in hypoxic responses and angiogenesis.
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Wang Y, Nathanson L, McNiece IK. Differential Hematopoietic Supportive Potential and Gene Expression of Stroma Cell Lines from Midgestation Mouse Placenta and Adult Bone Marrow. Cell Transplant 2011; 20:707-26. [DOI: 10.3727/096368910x536590] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
During mouse embryogenesis, hematopoietic development takes place in several distinct anatomic locations. The microenvironment of different hematopoietic organs plays an important role in the proliferation and maturation of the hematopoietic cells. We hypothesized that fetal stromal cells would be distinct to adult bone marrow (BM)-derived stromal cells because the BM contributes mainly to the homeostasis of hematopoietic stem cells (HSCs), while extensive expansion of HSCs occurs during fetal development. Here we report the establishment of stromal cell lines from fetal hematopoietic organs, namely aorta-gonad-mesonephros (AGM), midgestation placenta (PL), and fetal liver (FL) together with adult bone marrow (BM). The growth patterns and hematopoietic supportive potential were studied. Their phenotypic and molecular gene expression profiles were also determined. Stromal cell lines from each tissue were able to support cobblestone area formation of BM c-Kit+Sca-1+ hematopoietic cells: 22 (22/47) from AGM, three (3/4) from PL, three (3/4) from FL, and three (3/3) from BM. There were similar levels of expansion of total mononuclear cells (TMNs) when HSCs were cocultured with fetal stroma and adult BM stroma. However, PL-derived stromal cells supported higher levels of generation of colony-forming progenitor cell (CFU-C), indicated by more colonies and colonies with significantly larger size. Flow cytometric analysis of the PL1 cells demonstrated a phenotype of CD45-, CD105+, Sca-1+, CD34+, and CD49d+, compared to adult BM1 cells, which were CD45-, CD105+, Sca-1+, CD34-, and CD49d-. Using Affymetrix microarray analysis, we identified that genes specifically express in endothelial cells, such as Tie1, Tek, Kdr, Flt4, Emcn, Pecam1, Icam2, Cdh5, Esam1, Prom1, Cd34, and Sele were highly expressed in stroma PL1, consistent with an endothelial phenotype, while BM1 expressed a mesenchymal stromal phenotype. In summary, these data demonstrate distinct characteristics of stromal cells that provide insights into the microenvironmental control of HSCs.
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Affiliation(s)
- Yingchun Wang
- Interdisciplinary Stem Cell Institute, University of Miami, Miami, FL, USA
| | - Lubov Nathanson
- Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ian K. McNiece
- Interdisciplinary Stem Cell Institute, University of Miami, Miami, FL, USA
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Vance DD, Stoutenberg M, Chen G, Myerberg R, Tekin D, Nathanson L, Jacobs K, Clark J, Perry A, Rampersaud E, Goldschmidt-Clermont P, Seo D. Increased eNos Gene Expression Identified Among Marathon Runners With Improved Vo2max. Med Sci Sports Exerc 2011. [DOI: 10.1249/01.mss.0000403124.38547.48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Schuur J, Moreau J, Bohan J, Fauchet G, Lobon L, Lyn E, Nathanson L, Stack A, Temin E, Tibbles C. 16: Emergency Department Consultation Practices and Documentation Vary Widely Across Hospitals. Ann Emerg Med 2009. [DOI: 10.1016/j.annemergmed.2009.06.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hatzifotis M, Patel B, Fielding G, Martin I, Nathanson L, O’rourke N. HP24P�LAPAROSCOPIC LEFT LATERAL SECTIONECTOMY - CONTROLLING INDICATIONS AND AVOIDING PITFALLS. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04920_24.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bryant RD, Hatzifotis M, Martin I, Fielding G, Nathanson L, O’rourke N. HP03�LONG-TERM SURVIVAL AFTER LAPAROSCOPIC LIVER RESECTION FOR COLORECTAL LIVER METASTASES. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04920_3.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hatzifotis M, Hopkins G, Fielding G, Martin I, Nathanson L, O’rourke N. HP02�LESSONS LEARNT FROM 170 LAPAROSCOPIC LIVER RESECTIONS. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04920_2.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Brambilla R, Persaud T, Hu X, Karmally S, Shestopalov VI, Dvoriantchikova G, Ivanov D, Nathanson L, Barnum SR, Bethea JR. Transgenic inhibition of astroglial NF-kappa B improves functional outcome in experimental autoimmune encephalomyelitis by suppressing chronic central nervous system inflammation. J Immunol 2009; 182:2628-40. [PMID: 19234157 DOI: 10.4049/jimmunol.0802954] [Citation(s) in RCA: 205] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In the CNS, the transcription factor NF-kappaB is a key regulator of inflammation and secondary injury processes. Following trauma or disease, the expression of NF-kappaB-dependent genes is activated, leading to both protective and detrimental effects. In this study, we show that transgenic inactivation of astroglial NF-kappaB (glial fibrillary acidic protein-IkappaB alpha-dominant-negative mice) resulted in reduced disease severity and improved functional recovery following experimental autoimmune encephalomyelitis. At the chronic stage of the disease, transgenic mice exhibited an overall higher presence of leukocytes in spinal cord and brain, and a markedly higher percentage of CD8(+)CD122(+) T regulatory cells compared with wild type, which correlated with the timing of clinical recovery. We also observed that expression of proinflammatory genes in both spinal cord and cerebellum was delayed and reduced, whereas the loss of neuronal-specific molecules essential for synaptic transmission was limited compared with wild-type mice. Furthermore, death of retinal ganglion cells in affected retinas was almost abolished, suggesting the activation of neuroprotective mechanisms. Our data indicate that inhibiting NF-kappaB in astrocytes results in neuroprotective effects following experimental autoimmune encephalomyelitis, directly implicating astrocytes in the pathophysiology of this disease.
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Affiliation(s)
- Roberta Brambilla
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, 1095 Northwest 14th Terrace, Miami, FL 33136, USA.
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Ivanov D, Dvoriantchikova G, Barakat DJ, Nathanson L, Shestopalov VI. Differential gene expression profiling of large and small retinal ganglion cells. J Neurosci Methods 2008; 174:10-7. [PMID: 18640154 PMCID: PMC4133941 DOI: 10.1016/j.jneumeth.2008.06.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Revised: 06/16/2008] [Accepted: 06/16/2008] [Indexed: 11/29/2022]
Abstract
Different sub-populations of retinal ganglion cells (RGCs) vary in their sensitivity to pathological conditions such as retinal ischemia, diabetic retinopathy and glaucoma. Comparative transcriptomic analysis of such groups will likely reveal molecular determinants of differential sensitivity to stress. However, gene expression profiling of primary neuronal sub-populations represent a challenge due to the cellular heterogeneity of retinal tissue. In this manuscript, we report the use of a fluorescent neural tracer to specifically label and selectively isolate RGCs with different soma sizes by fluorescence-activated cell sorting (FACS) for the purpose of differential gene expression profiling. We identified 145 genes that were more active in the large RGCs and 312 genes in the small RGCs. Differential data were validated by quantitative RT-PCR, several corresponding proteins were confirmed by immunohistochemistry. Functional characterization revealed differential activity of genes implicated in synaptic transmission, neurotransmitter secretion, axon guidance, chemotaxis, ion transport and tolerance to stress. An in silico reconstruction of cellular networks suggested that differences in pathway activity between the two sub-populations of RGCs are controlled by networks interconnected by SP-1, Erk2 (MAPK1), Egr1, Egr2 and, potentially, regulated via transcription factors C/EBPbeta, HSF1, STAT1- and c-Myc. The results show that FACS-aided purification of retrogradely labeled cells can be effectively utilized for transcriptional profiling of adult retinal neurons.
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Affiliation(s)
- Dmitry Ivanov
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami; FL, USA
- Vavilov Institute of General Genetics RAS, Moscow, Russia
| | - Galina Dvoriantchikova
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami; FL, USA
| | - David J. Barakat
- Departments of Cell Biology and Anatomy, University of Miami Miller School of Medicine, Miami; FL, USA
| | - Lubov Nathanson
- Institute for Human Genomics, University of Miami Miller School of Medicine, Miami; FL, USA
| | - Valery I. Shestopalov
- Bascom Palmer Eye Institute Department of Ophthalmology, University of Miami Miller School of Medicine, Miami; FL, USA
- Departments of Cell Biology and Anatomy, University of Miami Miller School of Medicine, Miami; FL, USA
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Taylor C, O'Rourke N, Nathanson L, Martin I, Hopkins G, Layani L, Ghusn M, Fielding G. Laparoscopic distal pancreatectomy: the Brisbane experience of forty-six cases. HPB (Oxford) 2008; 10:38-42. [PMID: 18695757 PMCID: PMC2504852 DOI: 10.1080/13651820701802312] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2007] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Laparoscopic distal pancreatectomy (LDP) is a safe alternative to conventional open distal pancreatectomy, with advantages that include smaller incisions, less pain, and shorter postoperative recovery. Despite these apparent advantages, however, uptake of the procedure has been slow, with only a handful of series published. MATERIAL AND METHODS All LDPs performed in Brisbane, Australia, over a 10-year period (May 1996 to June 2006) were retrospectively reviewed. RESULTS Forty-six consecutive LDPs were performed. A variety of lesions were resected, including nine cancers. Twelve patients were converted for oncological (6) or technical reasons (6). The spleen was retained in 14/29 patients, either by main splenic vessel preservation (9) or solely supported by the short gastric vessels (5), resulting in inferior pole infarction in 2 patients. Overall morbidity was 39%, including 15% pancreatic fistula. All fistulas resolved after a median of 6 weeks without re-operation. A non-significant trend toward fewer fistulas with stapled rather than sutured stump closure was observed (13% vs 19%; p=0.43). Median operative duration and hospital stay were 157 min and 7 days, respectively. There was no mortality. CONCLUSION LDP is a safe alternative to conventional resection for a wide range of lesions. As with open resection, pancreatic fistula is the dominant morbidity, but is generally indolent. While spleen preservation is often possible, care must be taken to avoid infarction of the inferior pole if the Warshaw technique is utilized.
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Affiliation(s)
- C. Taylor
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
| | - N. O'Rourke
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
| | - L. Nathanson
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
| | - I. Martin
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
| | - G. Hopkins
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
| | - L. Layani
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
| | - M. Ghusn
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
| | - G. Fielding
- Royal Brisbane HospitalHerston QLDAustralia,The Wesley HospitalAuchenflower QLDAustralia,Princess Alexandra HospitalWoolloongabba QLDAustralia,Holy Spirit HospitalChermside QLDAustralia,John Flynn HospitalTugun QLDAustralia
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