1
|
Czimmerer Z, Patsalos A, Hoeksema MA. Editorial: Transcriptional regulation of macrophage function. Front Immunol 2023; 14:1321064. [PMID: 38022640 PMCID: PMC10653439 DOI: 10.3389/fimmu.2023.1321064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Affiliation(s)
- Zsolt Czimmerer
- Institute of Genetics, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Andreas Patsalos
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, United States
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, United States
| | - Marten A. Hoeksema
- Department of Medical Biochemistry, Amsterdam Immunity and Infection: Inflammatory Diseases, Amsterdam Cardiovascular Sciences: Atherosclerosis & Ischemic Syndrome, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
| |
Collapse
|
2
|
Tarban N, Papp AB, Deák D, Szentesi P, Halász H, Patsalos A, Csernoch L, Sarang Z, Szondy Z. Loss of adenosine A3 receptors accelerates skeletal muscle regeneration in mice following cardiotoxin-induced injury. Cell Death Dis 2023; 14:706. [PMID: 37898628 PMCID: PMC10613231 DOI: 10.1038/s41419-023-06228-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/05/2023] [Revised: 10/13/2023] [Accepted: 10/18/2023] [Indexed: 10/30/2023]
Abstract
Skeletal muscle regeneration is a complex process orchestrated by multiple interacting steps. An increasing number of reports indicate that inflammatory responses play a central role in linking initial muscle injury responses to timely muscle regeneration following injury. The nucleoside adenosine has been known for a long time as an endogenously produced anti-inflammatory molecule that is generated in high amounts during tissue injury. It mediates its physiological effects via four types of adenosine receptors. From these, adenosine A3 receptors (A3Rs) are not expressed by the skeletal muscle but are present on the surface of various inflammatory cells. In the present paper, the effect of the loss of A3Rs was investigated on the regeneration of the tibialis anterior (TA) muscle in mice following cardiotoxin-induced injury. Here we report that regeneration of the skeletal muscle from A3R-/- mice is characterized by a stronger initial inflammatory response resulting in a larger number of transmigrating inflammatory cells to the injury site, faster clearance of cell debris, enhanced proliferation and faster differentiation of the satellite cells (the muscle stem cells), and increased fusion of the generated myoblasts. This leads to accelerated skeletal muscle tissue repair and the formation of larger myofibers. Though the infiltrating immune cells expressed A3Rs and showed an increased inflammatory profile in the injured A3R-/- muscles, bone marrow transplantation experiments revealed that the increased response of the tissue-resident cells to tissue injury is responsible for the observed phenomenon. Altogether our data indicate that A3Rs are negative regulators of injury-related regenerative inflammation and consequently also that of the muscle fiber growth in the TA muscle. Thus, inhibiting A3Rs might have a therapeutic value during skeletal muscle regeneration following injury.
Collapse
Affiliation(s)
- Nastaran Tarban
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, Debrecen, Hungary
| | - Albert Bálint Papp
- Doctoral School of Dental Sciences, University of Debrecen, Debrecen, Hungary
| | - Dávid Deák
- Laboratory Animal Facility, Life Science Building, University of Debrecen, Debrecen, Hungary
| | - Péter Szentesi
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Hajnalka Halász
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, Debrecen, Hungary
| | - Andreas Patsalos
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St, Petersburg, FL, USA
| | - László Csernoch
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Sarang
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsuzsa Szondy
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
- Division of Dental Biochemistry, Department of Basic Medical Sciences, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary.
| |
Collapse
|
3
|
Russell AJ, DuVall M, Barthel B, Qian Y, Peter AK, Newell-Stamper BL, Hunt K, Lehman SJ, Madden MR, Schlachter ST, Robertson BD, Van Deusen A, Rodriguez HM, Vera CD, Su Y, Claflin DR, Brooks SV, Nghiem PP, Rutledge A, Juehne TI, Yu J, Barton ER, Luo YE, Patsalos A, Nagy L, Sweeney HL, Leinwand LA, Koch K. Modulating fast skeletal muscle contraction protects skeletal muscle in animal models of Duchenne muscular dystrophy. J Clin Invest 2023; 133:153837. [PMID: 36995778 PMCID: PMC10178848 DOI: 10.1172/jci153837] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/24/2023] [Indexed: 03/31/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is a lethal muscle disease caused by absence of the protein dystrophin, which acts as a structural link between the basal lamina and contractile machinery to stabilize muscle membranes from mechanical stress. In DMD, mechanical stress leads to exaggerated membrane injury and fiber breakdown, with fast fibers being the most susceptible to damage. A major contributor to this injury is muscle contraction, controlled by the motor protein myosin. However, the relationship between how muscle contraction and fast muscle fiber damage contribute to the pathophysiology of DMD has not been well characterized. We explored the role of fast skeletal muscle contraction in DMD with a novel, selective, orally active inhibitor of fast skeletal muscle myosin, EDG-5506. Surprisingly, even modest decreases of contraction (<15%) were sufficient to protect skeletal muscles in dystrophic mdx mice from stress injury. Longer-term treatment also decreased muscle fibrosis in key disease-implicated tissues. Importantly, therapeutic levels of myosin inhibition with EDG-5506 did not detrimentally affect strength or coordination. Finally, in dystrophic dogs, EDG-5506 reversibly reduced circulating muscle injury biomarkers and increased habitual activity. This unexpected biology may represent an important alternative treatment strategy for Duchenne and related myopathies.
Collapse
Affiliation(s)
- Alan J Russell
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Mike DuVall
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Benjamin Barthel
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Ying Qian
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Angela K Peter
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | | | - Kevin Hunt
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Sarah J Lehman
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Molly R Madden
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Stephen T Schlachter
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Benjamin D Robertson
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | - Ashleigh Van Deusen
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| | | | - Carlos D Vera
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, United States of America
| | - Yu Su
- Molecular and Integrative Physiology, The University of Michigan, Ann Arbor, United States of America
| | - Dennis R Claflin
- Department of Surgery, Section of Plastic Surgery, The University of Michigan, Ann Arbor, United States of America
| | - Susan V Brooks
- Molecular and Integrative Physiology, The University of Michigan, Ann Arbor, United States of America
| | - Peter P Nghiem
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, United States of America
| | - Alexis Rutledge
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, United States of America
| | - Twlya I Juehne
- Genome Technology Access Center, Department of Genetics, Washington University in Saint Louis, School of Medicine, St. Louis, United States of America
| | - Jinsheng Yu
- Genome Technology Access Center, Department of Genetics, Washington University in Saint Louis, School of Medicine, St. Louis, United States of America
| | - Elisabeth R Barton
- Department of Applied Physiology and Kinesiology and Myology Institute, University of Florida College of Health and Human Performance, Gainesville, United States of America
| | - Yangyi E Luo
- Department of Applied Physiology and Kinesiology and Myology Institute, University of Florida College of Health and Human Performance, Gainesville, United States of America
| | - Andreas Patsalos
- Departments of Medicine and Biological Chemistry, IFBR, John Hopkins University Medical School, St. Petersburg, United States of America
| | - Laszlo Nagy
- Departments of Medicine and Biological Chemistry, IFBR, John Hopkins University Medical School, St. Petersburg, United States of America
| | - H Lee Sweeney
- Department of Pharmacology & Therapeutics and Myology Institute, University of Florida College of Medicine, Gainesville, United States of America
| | - Leslie A Leinwand
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, United States of America
| | - Kevin Koch
- BioFrontiers Institute, Edgewise Therapeutics, Boulder, United States of America
| |
Collapse
|
4
|
Garabuczi É, Tarban N, Fige É, Patsalos A, Halász L, Szendi-Szatmári T, Sarang Z, Király R, Szondy Z. Nur77 and PPARγ regulate transcription and polarization in distinct subsets of M2-like reparative macrophages during regenerative inflammation. Front Immunol 2023; 14:1139204. [PMID: 36936920 PMCID: PMC10020500 DOI: 10.3389/fimmu.2023.1139204] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
Macrophage polarization is a process whereby macrophages develop a specific phenotype and functional response to different pathophysiological stimuli and tissue environments. In general, two main macrophage phenotypes have been identified: inflammatory (M1) and alternatively activated (M2) macrophages characterized specifically by IL-1β and IL-10 production, respectively. In the cardiotoxin-induced skeletal muscle injury model bone marrow-derived macrophages (BMDMs) play the central role in regulating tissue repair. Bone marrow-derived monocytes arriving at the site of injury differentiate first to M1 BMDMs that clear cell debris and trigger proliferation and differentiation of the muscle stem cells, while during the process of efferocytosis they change their phenotype to M2 to drive resolution of inflammation and tissue repair. The M2 population is formed from at least three distinct subsets: antigen presenting, resolution-related and growth factor producing macrophages, the latest ones expressing the transcription factor PPARγ. Nuclear receptor subfamily 4 group A member 1 (NR4A1; also termed Nur77) transcription factor is expressed as an early response gene, and has been shown to suppress the expression of pro-inflammatory genes during efferocytosis. Here we demonstrate that (1) Nur77 null BMDMs are characterized by elevated expression of PPARγ resulting in enhanced efferocytosis capacity; (2) Nur77 and PPARγ regulate transcription in different subsets of M2 skeletal muscle macrophages during muscle repair; (3) the loss of Nur77 prolongs M1 polarization characterized by increased and prolonged production of IL-1β by the resolution-related macrophages normally expressing Nur77; whereas, in contrast, (4) it promotes M2 polarization detected via the increased number of IL-10 producing CD206+ macrophages generated from the PPARγ-expressing subset.
Collapse
Affiliation(s)
- Éva Garabuczi
- Department of Integrative Health Sciences, Institute of Health Sciences, Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Nastaran Tarban
- Doctoral School of Molecular Cell and Immune Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Fige
- Doctoral School of Dental Sciences, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - Andreas Patsalos
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, United States
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, United States
| | - László Halász
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, United States
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL, United States
| | - Tímea Szendi-Szatmári
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Sarang
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Róbert Király
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsuzsa Szondy
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Section of Dental Biochemistry, Department of Basic Medical Sciences, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
- *Correspondence: Zsuzsa Szondy,
| |
Collapse
|
5
|
Sona C, Yeh YT, Patsalos A, Halasz L, Yan X, Kononenko NL, Nagy L, Poy MN. Evidence of islet CADM1-mediated immune cell interactions during human type 1 diabetes. JCI Insight 2022; 7:153136. [PMID: 35133983 PMCID: PMC8986082 DOI: 10.1172/jci.insight.153136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 07/13/2021] [Accepted: 02/02/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Pathophysiology of type 1 diabetes (T1D) is illustrated by pancreatic islet infiltration of inflammatory lymphocytes, including CD8+ T cells; however, the molecular factors mediating their recruitment remain unknown. We hypothesized that single-cell RNA-sequencing (scRNA-Seq) analysis of immune cell populations isolated from islets of NOD mice captured gene expression dynamics providing critical insight into autoimmune diabetes pathogenesis. METHODS Pancreatic sections from human donors were investigated, including individuals with T1D, autoantibody-positive (aAb+) individuals, and individuals without diabetes who served as controls. IHC was performed to assess islet hormones and both novel and canonical immune cell markers that were identified from unbiased, state-of-the-art workflows after reanalyzing murine scRNA-Seq data sets. RESULTS Computational workflows identified cell adhesion molecule 1–mediated (Cadm1-mediated) homotypic binding among the most important intercellular interactions among all cell clusters, as well as Cadm1 enrichment in macrophages and DCs from pancreata of NOD mice. Immunostaining of human pancreata revealed an increased number of CADM1+glucagon+ cells adjacent to CD8+ T cells in sections from T1D and aAb+ donors compared with individuals without diabetes. Numbers of CADM1+CD68+ peri-islet myeloid cells adjacent to CD8+ T cells were also increased in pancreatic sections from both T1D and aAb+ donors compared with individuals without diabetes. CONCLUSION Increased detection of CADM1+ cells adjacent to CD8+ T cells in pancreatic sections of individuals with T1D and those who were aAb+ validated workflows and indicated CADM1-mediated intercellular contact may facilitate islet infiltration of cytotoxic T lymphocytes and serve as a potential therapeutic target for preventing T1D pathogenesis. FUNDING The Johns Hopkins All Children’s Foundation Institutional Research Grant Program, the National Natural Science Foundation of China (grant 82071326), and the Deutsche Forschungsgemeinschaft (grants 431549029–SFB1451, EXC2030–390661388, and 411422114-GRK2550).
Collapse
Affiliation(s)
- Chandan Sona
- Department of Medicine, John Hopkins University, St. Petersburg, United States of America
| | - Yu-Te Yeh
- Department of Medicine, John Hopkins University, St. Petersburg, United States of America
| | - Andreas Patsalos
- Institute for Fundamental Biomedical Research, John Hopkins University, St. Petersburg, United States of America
| | - Laszlo Halasz
- Institute for Fundamental Biomedical Research, John Hopkins University, St. Petersburg, United States of America
| | - Xin Yan
- Stem Cell and Biotherapy Technology Research Center, Xinxiang Medical University, Xinxiang, China
| | - Natalia L Kononenko
- CECAD Excellence Center & Center for Physiology and Pathophysiology, University of Cologne, Cologne, Germany
| | - Laszlo Nagy
- Institute for Fundamental Biomedical Research, John Hopkins University, St. Petersburg, United States of America
| | - Matthew N Poy
- Department of Medicine, John Hopkins University, St. Petersburg, United States of America
| |
Collapse
|
6
|
Patsalos A, Halasz L, Medina-Serpas MA, Berger WK, Daniel B, Tzerpos P, Kiss M, Nagy G, Fischer C, Simandi Z, Varga T, Nagy L. A growth factor-expressing macrophage subpopulation orchestrates regenerative inflammation via GDF-15. J Exp Med 2022; 219:e20210420. [PMID: 34846534 PMCID: PMC8635277 DOI: 10.1084/jem.20210420] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 02/19/2021] [Revised: 08/03/2021] [Accepted: 11/01/2021] [Indexed: 12/13/2022] Open
Abstract
Muscle regeneration is the result of the concerted action of multiple cell types driven by the temporarily controlled phenotype switches of infiltrating monocyte-derived macrophages. Pro-inflammatory macrophages transition into a phenotype that drives tissue repair through the production of effectors such as growth factors. This orchestrated sequence of regenerative inflammatory events, which we termed regeneration-promoting program (RPP), is essential for proper repair. However, it is not well understood how specialized repair-macrophage identity develops in the RPP at the transcriptional level and how induced macrophage-derived factors coordinate tissue repair. Gene expression kinetics-based clustering of blood circulating Ly6Chigh, infiltrating inflammatory Ly6Chigh, and reparative Ly6Clow macrophages, isolated from injured muscle, identified the TGF-β superfamily member, GDF-15, as a component of the RPP. Myeloid GDF-15 is required for proper muscle regeneration following acute sterile injury, as revealed by gain- and loss-of-function studies. Mechanistically, GDF-15 acts both on proliferating myoblasts and on muscle-infiltrating myeloid cells. Epigenomic analyses of upstream regulators of Gdf15 expression identified that it is under the control of nuclear receptors RXR/PPARγ. Finally, immune single-cell RNA-seq profiling revealed that Gdf15 is coexpressed with other known muscle regeneration-associated growth factors, and their expression is limited to a unique subpopulation of repair-type macrophages (growth factor-expressing macrophages [GFEMs]).
Collapse
Affiliation(s)
- Andreas Patsalos
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Laszlo Halasz
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Miguel A. Medina-Serpas
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Wilhelm K. Berger
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Bence Daniel
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Petros Tzerpos
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Máté Kiss
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gergely Nagy
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - Zoltan Simandi
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL
| | - Tamas Varga
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Laszlo Nagy
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| |
Collapse
|
7
|
Potor L, Hendrik Z, Patsalos A, Katona É, Méhes G, Póliska S, Csősz É, Kalló G, Komáromi I, Combi Z, Posta N, Sikura KÉ, Pethő D, Oros M, Vereb G, Tóth C, Gergely P, Nagy L, Balla G, Balla J. Oxidation of Hemoglobin Drives a Proatherogenic Polarization of Macrophages in Human Atherosclerosis. Antioxid Redox Signal 2021; 35:917-950. [PMID: 34269613 PMCID: PMC8905252 DOI: 10.1089/ars.2020.8234] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Aim: The aim of our study was to explore the pathophysiologic role of oxidation of hemoglobin (Hb) to ferrylHb in human atherosclerosis. Results: We observed a severe oxidation of Hb to ferrylHb in complicated atherosclerotic lesions of carotid arteries with oxidative changes of the globin moieties, detected previously described oxidation hotspots in Hb (β1Cys93; β1Cys112; β2Cys112) and identified a novel oxidation hotspot (α1Cys104). After producing a monoclonal anti-ferrylHb antibody, ferrylHb was revealed to be localized extracellularly and also internalized by macrophages in the human hemorrhagic complicated lesions. We demonstrated that ferrylHb is taken up via phagocytosis as well as CD163 receptor-mediated endocytosis and then transported to lysosomes involving actin polymerization. Internalization of ferrylHb was accompanied by upregulation of heme oxygenase-1 and H-ferritin and accumulation of iron within lysosomes as a result of heme/iron uptake. Importantly, macrophages exposed to ferrylHb in atherosclerotic plaques exhibited a proinflammatory phenotype, as reflected by elevated levels of IL-1β and TNF-α. To find further signatures of ferrylHb in complicated lesions, we performed RNA-seq analysis on biopsies from patients who underwent endarterectomies. RNA-seq analysis demonstrated that human complicated lesions had a unique transcriptomic profile different from arteries and atheromatous plaques. Pathways affected in complicated lesions included gene changes associated with phosphoinositide 3-kinase (PI3K) signaling, lipid transport, tissue remodeling, and vascularization. Targeted analysis of gene expression associated with calcification, apoptosis, and hemolytic-specific clusters indicated an increase in the severity of complicated lesions compared with atheroma. A 39% overlap in the differential gene expression profiles of human macrophages exposed to ferrylHb and the complicated lesion profiles was uncovered. Among these 547 genes, we found inflammatory, angiogenesis, and iron metabolism gene clusters regulated in macrophages. Innovation and Conclusion: We conclude that oxidation of Hb to ferrylHb contributes to the progression of atherosclerosis via polarizing macrophages into a proatherogenic phenotype. Antioxid. Redox Signal. 35, 917-950.
Collapse
Affiliation(s)
- László Potor
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Debrecen, Hungary.,Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Division of Nephrology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Zoltán Hendrik
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Debrecen, Hungary.,Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary.,Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andreas Patsalos
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Medicine and Johns Hopkins University School of Medicine, St. Petersburg, Florida, USA.,Department of Biological Chemistry, Johns Hopkins University School of Medicine, St. Petersburg, Florida, USA.,Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - Éva Katona
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gábor Méhes
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Szilárd Póliska
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Csősz
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gergő Kalló
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - István Komáromi
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Combi
- Division of Nephrology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Niké Posta
- Division of Nephrology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Katalin Éva Sikura
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Debrecen, Hungary.,Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Dávid Pethő
- Division of Nephrology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Melinda Oros
- Division of Nephrology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - György Vereb
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Csaba Tóth
- Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Péter Gergely
- Department of Forensic Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Nagy
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Medicine and Johns Hopkins University School of Medicine, St. Petersburg, Florida, USA
| | - György Balla
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Debrecen, Hungary.,Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - József Balla
- ELKH-UD Vascular Biology and Myocardial Pathophysiology Research Group, Hungarian Academy of Sciences, Debrecen, Hungary.,Division of Nephrology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| |
Collapse
|
8
|
Patsalos A, Tzerpos P, Wei X, Nagy L. Myeloid cell diversification during regenerative inflammation: Lessons from skeletal muscle. Semin Cell Dev Biol 2021; 119:89-100. [PMID: 34016524 PMCID: PMC8530826 DOI: 10.1016/j.semcdb.2021.05.005] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/27/2021] [Accepted: 05/03/2021] [Indexed: 12/11/2022]
Abstract
Understanding the mechanisms of tissue and organ regeneration in adult animals and humans is of great interest from a basic biology as well as a medical, therapeutical point of view. It is increasingly clear that the relatively limited ability to regenerate tissues and organs in mammals as oppose to lower vertebrates is the consequence of evolutionary trade-offs and changes during development and aging. Thus, the coordinated interaction of the immune system, particularly the innate part of it, and the injured, degenerated parenchymal tissues such as skeletal muscle, liver, lung, or kidney shape physiological and also pathological processes. In this review, we provide an overview of how morphologically and functionally complete (ad integrum) regeneration is achieved using skeletal muscle as a model. We will review recent advances about the differentiation, activation, and subtype specification of circulating monocyte to resolution or repair-type macrophages during the process we term regenerative inflammation, resulting in complete restoration of skeletal muscle in murine models of toxin-induced injury.
Collapse
Affiliation(s)
- Andreas Patsalos
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Petros Tzerpos
- Department of Biochemistry and Molecular Biology, Nuclear Receptor Research Laboratory, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Xiaoyan Wei
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA
| | - Laszlo Nagy
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL, USA; Department of Biochemistry and Molecular Biology, Nuclear Receptor Research Laboratory, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| |
Collapse
|
9
|
Pethő D, Hendrik Z, Nagy A, Beke L, Patsalos A, Nagy L, Póliska S, Méhes G, Tóth C, Potor L, Eaton JW, Jacob HS, Balla G, Balla J, Gáll T. Heme cytotoxicity is the consequence of endoplasmic reticulum stress in atherosclerotic plaque progression. Sci Rep 2021; 11:10435. [PMID: 34001932 PMCID: PMC8129109 DOI: 10.1038/s41598-021-89713-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/29/2021] [Indexed: 02/08/2023] Open
Abstract
Hemorrhage and hemolysis with subsequent heme release are implicated in many pathologies. Endothelial cells (ECs) encounter large amount of free heme after hemolysis and are at risk of damage from exogenous heme. Here we show that hemorrhage aggravates endoplasmic reticulum (ER) stress in human carotid artery plaques compared to healthy controls or atheromas without hemorrhage as demonstrated by RNA sequencing and immunohistochemistry. In EC cultures, heme also induces ER stress. In contrast, if cultured ECs are pulsed with heme arginate, cells become resistant to heme-induced ER (HIER) stress that is associated with heme oxygenase-1 (HO-1) and ferritin induction. Knocking down HO-1, HO-2, biliverdin reductase, and ferritin show that HO-1 is the ultimate cytoprotectant in acute HIER stress. Carbon monoxide-releasing molecules (CORMs) but not bilirubin protects cultured ECs from HIER stress via HO-1 induction, at least in part. Knocking down HO-1 aggravates heme-induced cell death that cannot be counterbalanced with any known cell death inhibitors. We conclude that endothelium and perhaps other cell types can be protected from HIER stress by induction of HO-1, and heme-induced cell death occurs via HIER stress that is potentially involved in the pathogenesis of diverse pathologies with hemolysis and hemorrhage including atherosclerosis.
Collapse
|
10
|
Sansbury BE, Li X, Wong B, Patsalos A, Giannakis N, Zhang MJ, Nagy L, Spite M. Myeloid ALX/FPR2 regulates vascularization following tissue injury. Proc Natl Acad Sci U S A 2020; 117:14354-14364. [PMID: 32513697 PMCID: PMC7321964 DOI: 10.1073/pnas.1918163117] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [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] [Indexed: 12/17/2022] Open
Abstract
Ischemic injury initiates a sterile inflammatory response that ultimately participates in the repair and recovery of tissue perfusion. Macrophages are required for perfusion recovery during ischemia, in part because they produce growth factors that aid in vascular remodeling. The input signals governing this pro-revascularization phenotype remain of interest. Here we found that hindlimb ischemia increases levels of resolvin D1 (RvD1), an inflammation-resolving lipid mediator that targets macrophages via its receptor, ALX/FPR2. Exogenous RvD1 enhances perfusion recovery during ischemia, and mice deficient in Alx/Fpr2 have an endogenous defect in this process. Mechanistically, RNA sequencing revealed that RvD1 induces a transcriptional program in macrophages characteristic of a pro-revascularization phenotype. Vascularization of ischemic skeletal muscle, as well as cutaneous wounds, is impaired in mice with myeloid-specific deficiency of Alx/Fpr2, and this is associated with altered expression of pro-revascularization genes in skeletal muscle and macrophages isolated from skeletal muscle. Collectively, these results uncover a role of ALX/FPR2 in revascularization that may be amenable to therapeutic targeting in diseases associated with altered tissue perfusion and repair.
Collapse
MESH Headings
- Animals
- Cells, Cultured
- Disease Models, Animal
- Docosahexaenoic Acids/metabolism
- Female
- Gene Knockout Techniques
- Humans
- Ischemia/immunology
- Ischemia/pathology
- Macrophages/immunology
- Macrophages/metabolism
- Male
- Mice
- Mice, Knockout
- Muscle, Skeletal/blood supply
- Muscle, Skeletal/immunology
- Muscle, Skeletal/pathology
- Neovascularization, Physiologic/immunology
- Primary Cell Culture
- RNA-Seq
- Receptors, Formyl Peptide/genetics
- Receptors, Formyl Peptide/metabolism
- Receptors, Lipoxin/genetics
- Receptors, Lipoxin/metabolism
- Signal Transduction/immunology
- Skin/blood supply
- Skin/immunology
- Skin/injuries
- Skin/pathology
- Transcription, Genetic/immunology
- Wound Healing/immunology
Collapse
Affiliation(s)
- Brian E Sansbury
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Xiaofeng Li
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Blenda Wong
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Andreas Patsalos
- Department of Medicine, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
- Department of Biological Chemistry, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
| | - Nikolas Giannakis
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Michael J Zhang
- Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455
| | - Laszlo Nagy
- Department of Medicine, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
- Department of Biological Chemistry, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Matthew Spite
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115;
| |
Collapse
|
11
|
Hammers DW, Hart CC, Patsalos A, Matheny MK, Wright LA, Nagy L, Sweeney HL. Glucocorticoids counteract hypertrophic effects of myostatin inhibition in dystrophic muscle. JCI Insight 2020; 5:133276. [PMID: 31830002 DOI: 10.1172/jci.insight.133276] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 09/06/2019] [Accepted: 12/04/2019] [Indexed: 12/25/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is a devastating genetic muscle disease resulting in progressive muscle degeneration and wasting. Glucocorticoids, specifically prednisone/prednisolone and deflazacort, are commonly used by DMD patients. Emerging DMD therapeutics include those targeting the muscle-wasting factor, myostatin (Mstn). The aim of this study was to investigate how chronic glucocorticoid treatment impacts the efficacy of Mstn inhibition in the D2.mdx mouse model of DMD. We report that chronic treatment of dystrophic mice with prednisolone (Pred) causes significant muscle wasting, entailing both activation of the ubiquitin-proteasome degradation pathway and inhibition of muscle protein synthesis. Combining Pred with Mstn inhibition, using a modified Mstn propeptide (dnMstn), completely abrogates the muscle hypertrophic effects of Mstn inhibition independently of Mstn expression or SMAD3 activation. Transcriptomic analysis identified that combining Pred with dnMstn treatment affects gene expression profiles associated with inflammation, metabolism, and fibrosis. Additionally, we demonstrate that Pred-induced muscle atrophy is not prevented by Mstn ablation. Therefore, glucocorticoids interfere with potential muscle mass benefits associated with targeting Mstn, and the ramifications of glucocorticoid use should be a consideration during clinical trial design for DMD therapeutics. These results have significant implications for past and future Mstn inhibition trials in DMD.
Collapse
Affiliation(s)
- David W Hammers
- Department of Pharmacology and Therapeutics and.,Myology Institute, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Cora C Hart
- Department of Pharmacology and Therapeutics and.,Myology Institute, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Andreas Patsalos
- Department of Medicine and.,Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - Michael K Matheny
- Department of Pharmacology and Therapeutics and.,Myology Institute, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Lillian A Wright
- Department of Pharmacology and Therapeutics and.,Myology Institute, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Laszlo Nagy
- Department of Medicine and.,Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Johns Hopkins All Children's Hospital, St. Petersburg, Florida, USA
| | - H Lee Sweeney
- Department of Pharmacology and Therapeutics and.,Myology Institute, University of Florida College of Medicine, Gainesville, Florida, USA
| |
Collapse
|
12
|
Patsalos A, Tzerpos P, Halasz L, Nagy G, Pap A, Giannakis N, Lyroni K, Koliaraki V, Pintye E, Dezso B, Kollias G, Spilianakis CG, Nagy L. The BACH1-HMOX1 Regulatory Axis Is Indispensable for Proper Macrophage Subtype Specification and Skeletal Muscle Regeneration. J Immunol 2019; 203:1532-1547. [PMID: 31405954 DOI: 10.4049/jimmunol.1900553] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/04/2019] [Indexed: 12/17/2022]
Abstract
The infiltration and subsequent in situ subtype specification of monocytes to effector/inflammatory and repair macrophages is indispensable for tissue repair upon acute sterile injury. However, the chromatin-level mediators and regulatory events controlling this highly dynamic macrophage phenotype switch are not known. In this study, we used a murine acute muscle injury model to assess global chromatin accessibility and gene expression dynamics in infiltrating macrophages during sterile physiological inflammation and tissue regeneration. We identified a heme-binding transcriptional repressor, BACH1, as a novel regulator of this process. Bach1 knockout mice displayed impaired muscle regeneration, altered dynamics of the macrophage phenotype transition, and transcriptional deregulation of key inflammatory and repair-related genes. We also found that BACH1 directly binds to and regulates distal regulatory elements of these genes, suggesting a novel role for BACH1 in controlling a broad spectrum of the repair response genes in macrophages upon injury. Inactivation of heme oxygenase-1 (Hmox1), one of the most stringently deregulated genes in the Bach1 knockout in macrophages, impairs muscle regeneration by changing the dynamics of the macrophage phenotype switch. Collectively, our data suggest the existence of a heme-BACH1--HMOX1 regulatory axis, that controls the phenotype and function of the infiltrating myeloid cells upon tissue damage, shaping the overall tissue repair kinetics.
Collapse
Affiliation(s)
- Andreas Patsalos
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701.,Department of Biological Chemistry, Johns Hopkins University School of Medicine, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary
| | - Petros Tzerpos
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary.,Department of Biology, University of Crete, Heraklion, GR-70013 Greece
| | - Laszlo Halasz
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary
| | - Gergely Nagy
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary
| | - Attila Pap
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary
| | - Nikolas Giannakis
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary
| | - Konstantina Lyroni
- Laboratory of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Crete, GR-71003 Greece
| | - Vasiliki Koliaraki
- Biomedical Sciences Research Center "Alexander Fleming," Vari, GR-16672 Greece
| | - Eva Pintye
- Department of Radiotherapy, University of Debrecen, Debrecen, HU-4032 Hungary.,Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701.,Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
| | - Balazs Dezso
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701.,Department of Biological Chemistry, Johns Hopkins University School of Medicine, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
| | - George Kollias
- Biomedical Sciences Research Center "Alexander Fleming," Vari, GR-16672 Greece.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary
| | - Charalampos G Spilianakis
- Department of Biology, University of Crete, Heraklion, GR-70013 Greece.,Department of Biology, University of Crete, Heraklion, GR-70013 Greece.,Department of Biology, University of Crete, Heraklion, GR-70013 Greece
| | - Laszlo Nagy
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701; .,Department of Biological Chemistry, Johns Hopkins University School of Medicine, Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, HU-4032 Hungary
| |
Collapse
|
13
|
Patsalos A, Tzerpos P, Halasz L, Nagy G, Giannakis N, Pap A, Lyroni K, Koliaraki V, Kollias G, Spilianakis CG, Nagy L. Macrophage BACH1, a heme regulated transcriptional repressor, controls HMOX1 and skeletal muscle regeneration. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.868.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - George Kollias
- Biomedical Sciences Research Center “Alexander Fleming”AthensGreece
| | - Charalambos G. Spilianakis
- Institute of Molecular Biology and BiotechnologyFoundation for Research and Technology‐Hellas.HeraklionGreece
| | - Laszlo Nagy
- Department of MedicineJohns Hopkins UniversitySt. PetersburgFL
| |
Collapse
|
14
|
Patsalos A, Simandi Z, Hays TT, Peloquin M, Hajian M, Restrepo I, Coen PM, Russell AJ, Nagy L. In vivo GDF3 administration abrogates aging related muscle regeneration delay following acute sterile injury. Aging Cell 2018; 17:e12815. [PMID: 30003692 PMCID: PMC6156497 DOI: 10.1111/acel.12815] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 02/18/2018] [Revised: 05/17/2018] [Accepted: 06/15/2018] [Indexed: 12/22/2022] Open
Abstract
Tissue regeneration is a highly coordinated process with sequential events including immune cell infiltration, clearance of damaged tissues, and immune‐supported regrowth of the tissue. Aging has a well‐documented negative impact on this process globally; however, whether changes in immune cells per se are contributing to the decline in the body’s ability to regenerate tissues with aging is not clearly understood. Here, we set out to characterize the dynamics of macrophage infiltration and their functional contribution to muscle regeneration by comparing young and aged animals upon acute sterile injury. Injured muscle of old mice showed markedly elevated number of macrophages, with a predominance for Ly6Chigh pro‐inflammatory macrophages and a lower ratio of the Ly6Clow repair macrophages. Of interest, a recently identified repair macrophage‐derived cytokine, growth differentiation factor 3 (GDF3), was markedly downregulated in injured muscle of old relative to young mice. Supplementation of recombinant GDF3 in aged mice ameliorated the inefficient regenerative response. Together, these results uncover a deficiency in the quantity and quality of infiltrating macrophages during aging and suggest that in vivo administration of GDF3 could be an effective therapeutic approach.
Collapse
Affiliation(s)
- Andreas Patsalos
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
- Department of Biochemistry and Molecular Biology, Faculty of Medicine; University of Debrecen; Debrecen Hungary
| | - Zoltan Simandi
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
| | - Tristan T. Hays
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
| | - Matthew Peloquin
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
| | - Matine Hajian
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
| | - Isabella Restrepo
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
| | - Paul M. Coen
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
- Florida Hospital; Translational Research Institute for Metabolism and Diabetes; Orlando Florida
| | - Alan J. Russell
- Muscle Metabolism Discovery Performance Unit; GlaxoSmithKline; King of Prussia Pennsylvania
| | - Laszlo Nagy
- Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona; Orlando Florida
- Department of Biochemistry and Molecular Biology, Faculty of Medicine; University of Debrecen; Debrecen Hungary
| |
Collapse
|
15
|
Bakoyiannis I, Cherdyntseva V, Aivalioti M, Barton M, Coda D, Douka I, Evangelou A, Evangelou C, Ioannou P, Kanta V, Kapanidis K, Karagiannidis I, Kokkinidis D, Kouni S, Lehnen J, Patsalos A, Pei J, Petropoulou PI, Rodemer W, Scerbo D, Stefa A, Tsvetkov E, Vasilikos L, Vasilopoulos T, Vukojicic A, Zafeiropoulou E. Great need for changes in higher education in Greece. Clin Chem Lab Med 2017; 55:e238-e239. [PMID: 28426430 DOI: 10.1515/cclm-2017-0188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 11/15/2022]
|
16
|
Patsalos A, Pap A, Varga T, Trencsenyi G, Contreras GA, Garai I, Papp Z, Dezso B, Pintye E, Nagy L. In situ macrophage phenotypic transition is affected by altered cellular composition prior to acute sterile muscle injury. J Physiol 2017; 595:5815-5842. [PMID: 28714082 DOI: 10.1113/jp274361] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [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: 05/02/2017] [Accepted: 06/23/2017] [Indexed: 12/17/2022] Open
Abstract
KEY POINTS The in situ phenotypic switch of macrophages is delayed in acute injury following irradiation. The combination of bone marrow transplantation and local muscle radiation protection allows for the identification of a myeloid cell contribution to tissue repair. PET-MRI allows monitoring of myeloid cell invasion and metabolism. Altered cellular composition prior to acute sterile injury affects the in situ phenotypic transition of invading myeloid cells to repair macrophages. There is reciprocal intercellular communication between local muscle cell compartments, such as PAX7 positive cells, and recruited macrophages during skeletal muscle regeneration. ABSTRACT Skeletal muscle regeneration is a complex interplay between various cell types including invading macrophages. Their recruitment to damaged tissues upon acute sterile injuries is necessary for clearance of necrotic debris and for coordination of tissue regeneration. This highly dynamic process is characterized by an in situ transition of infiltrating monocytes from an inflammatory (Ly6Chigh ) to a repair (Ly6Clow ) macrophage phenotype. The importance of the macrophage phenotypic shift and the cross-talk of the local muscle tissue with the infiltrating macrophages during tissue regeneration upon injury are not fully understood and their study lacks adequate methodology. Here, using an acute sterile skeletal muscle injury model combined with irradiation, bone marrow transplantation and in vivo imaging, we show that preserved muscle integrity and cell composition prior to the injury is necessary for the repair macrophage phenotypic transition and subsequently for proper and complete tissue regeneration. Importantly, by using a model of in vivo ablation of PAX7 positive cells, we show that this radiosensitive skeletal muscle progenitor pool contributes to macrophage phenotypic transition following acute sterile muscle injury. In addition, local muscle tissue radioprotection by lead shielding during irradiation preserves normal macrophage transition dynamics and subsequently muscle tissue regeneration. Taken together, our data suggest the existence of a more extensive and reciprocal cross-talk between muscle tissue compartments, including satellite cells, and infiltrating myeloid cells upon tissue damage. These interactions shape the macrophage in situ phenotypic shift, which is indispensable for normal muscle tissue repair dynamics.
Collapse
Affiliation(s)
- Andreas Patsalos
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, H-4032, Hungary
| | - Attila Pap
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, H-4032, Hungary
| | - Tamas Varga
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, H-4032, Hungary
| | | | - Gerardo Alvarado Contreras
- Division of Clinical Physiology, Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - Zoltan Papp
- Division of Clinical Physiology, Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Balazs Dezso
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Eva Pintye
- Department of Radiotherapy, Institute of Oncology, University of Debrecen, Debrecen, Hungary
| | - Laszlo Nagy
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, H-4032, Hungary.,MTA-DE 'Lendület' Immunogenomics Research Group, University of Debrecen, Debrecen, Hungary.,Sanford-Burnham-Prebys Medical Discovery Institute at Lake Nona, Orlando, FL, USA
| |
Collapse
|
17
|
Lyroni K, Patsalos A, Daskalaki MG, Doxaki C, Soennichsen B, Helms M, Liapis I, Zacharioudaki V, Kampranis SC, Tsatsanis C. Epigenetic and Transcriptional Regulation of IRAK-M Expression in Macrophages. J I 2016; 198:1297-1307. [DOI: 10.4049/jimmunol.1600009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 11/21/2016] [Indexed: 12/16/2022]
|
18
|
Lyroni K, Ieronymaki E, Patsalos A, Tsatsanis C. Contribution of adipocytes in the regulation of metabolic inflammation: the role of osteopontin (INM1P.429). The Journal of Immunology 2015. [DOI: 10.4049/jimmunol.194.supp.56.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Adipose tissue is not only involved in energy storage but also functions as an immuno-regulatory organ that participates in the establishment of obesity-related chronic low-grade inflammation. In this work we questioned whether adipocytes themselves could acquire a pro- or anti- inflammatory phenotype and determine potential signaling molecules affecting this process. The results showed that MEF-derived adipocytes were activated by LPS or IL-4. Si-RNA library screening allowed the identification of signaling molecules regulating iNOS and Arg1 expression and showed that PPARγ STAT3 and Akt2 were central regulators. In vivo, we found adipocytes from Akt2-/- mice or from HFD-induced obese mice had increased expression of iNOS and Arg1 and the pro-inflammatory cytokine osteopontin (OPN). Surprisingly, genetic deletion of OPN resulted in increased responsiveness of adipocytes to LPS as determined by elevated expression of iNOS and NO production. Despite the increased NO production Arg1 and IL-10 were also higher in OPN-/- adipocytes suggesting that OPN affects additional signaling events that suppress adipocyte activation. Further analysis determined the signaling components affected by OPN that regulate inflammatory factors in adipocytes. Our findings suggest that adipocytes obtain pro- or anti-inflammatory properties, which are affected by obesity. OPN partly regulates the anti-inflammatory properties of adipocytes by initiating anti- inflammatory cascades.
Collapse
|