151
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Bui TA, Jickling GC, Winship IR. Neutrophil dynamics and inflammaging in acute ischemic stroke: A transcriptomic review. Front Aging Neurosci 2022; 14:1041333. [PMID: 36620775 PMCID: PMC9813499 DOI: 10.3389/fnagi.2022.1041333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
Stroke is among the leading causes of death and disability worldwide. Restoring blood flow through recanalization is currently the only acute treatment for cerebral ischemia. Unfortunately, many patients that achieve a complete recanalization fail to regain functional independence. Recent studies indicate that activation of peripheral immune cells, particularly neutrophils, may contribute to microcirculatory failure and futile recanalization. Stroke primarily affects the elderly population, and mortality after endovascular therapies is associated with advanced age. Previous analyses of differential gene expression across injury status and age identify ischemic stroke as a complex age-related disease. It also suggests robust interactions between stroke injury, aging, and inflammation on a cellular and molecular level. Understanding such interactions is crucial in developing effective protective treatments. The global stroke burden will continue to increase with a rapidly aging human population. Unfortunately, the mechanisms of age-dependent vulnerability are poorly defined. In this review, we will discuss how neutrophil-specific gene expression patterns may contribute to poor treatment responses in stroke patients. We will also discuss age-related transcriptional changes that may contribute to poor clinical outcomes and greater susceptibility to cerebrovascular diseases.
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Affiliation(s)
- Truong An Bui
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Glen C. Jickling
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada,Department of Medicine, Division of Neurology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Ian R. Winship
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada,Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada,*Correspondence: Ian R. Winship,
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152
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Palmisano M, Gargano A, Olabiyi BF, Lutz B, Bilkei-Gorzo A. Hippocampal Deletion of CB1 Receptor Impairs Social Memory and Leads to Age-Related Changes in the Hippocampus of Adult Mice. Int J Mol Sci 2022; 24:ijms24010026. [PMID: 36613469 PMCID: PMC9819823 DOI: 10.3390/ijms24010026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Endocannabinoid system activity declines with age in the hippocampus, along with the density of the cannabinoid receptor type-1 (CB1). This process might contribute to brain ageing, as previous studies showed that the constitutive deletion of the CB1 receptor in mice leads to early onset of memory deficits and histological signs of ageing in the hippocampus including enhanced pro-inflammatory glial activity and reduced neurogenesis. Here we asked whether the CB1 receptor exerts its activity locally, directly influencing hippocampal ageing or indirectly, accelerating systemic ageing. Thus, we deleted the CB1 receptor site-specifically in the hippocampus of 2-month-old CB1flox/flox mice using stereotaxic injections of rAAV-Cre-Venus viruses and assessed their social recognition memory four months later. Mice with hippocampus-specific deletion of the CB1 receptor displayed a memory impairment, similarly as observed in constitutive knockouts at the same age. We next analysed neuroinflammatory changes in the hippocampus, neuronal density and cell proliferation. Site-specific mutant mice had enhanced glial cell activity, up-regulated levels of TNFα in the hippocampus and decreased cell proliferation, specifically in the subgranular zone of the dentate gyrus. Our data indicate that a local activity of the CB1 receptor in the hippocampus is required to maintain neurogenesis and to prevent neuroinflammation and cognitive decline.
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Affiliation(s)
- Michela Palmisano
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, 53125 Bonn, Germany
| | - Alessandra Gargano
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, 53125 Bonn, Germany
| | | | - Beat Lutz
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany
- Leibniz Institute for Resilience Research (LIR), 55122 Mainz, Germany
| | - Andras Bilkei-Gorzo
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, 53125 Bonn, Germany
- Correspondence: ; Tel.: +49-0228-6885-317
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153
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Manta CP, Leibing T, Friedrich M, Nolte H, Adrian M, Schledzewski K, Krzistetzko J, Kirkamm C, David Schmid C, Xi Y, Stojanovic A, Tonack S, de la Torre C, Hammad S, Offermanns S, Krüger M, Cerwenka A, Platten M, Goerdt S, Géraud C. Targeting of Scavenger Receptors Stabilin-1 and Stabilin-2 Ameliorates Atherosclerosis by a Plasma Proteome Switch Mediating Monocyte/Macrophage Suppression. Circulation 2022; 146:1783-1799. [PMID: 36325910 DOI: 10.1161/circulationaha.121.058615] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Scavenger receptors Stabilin-1 (Stab1) and Stabilin-2 (Stab2) are preferentially expressed by liver sinusoidal endothelial cells. They mediate the clearance of circulating plasma molecules controlling distant organ homeostasis. Studies suggest that Stab1 and Stab2 may affect atherosclerosis. Although subsets of tissue macrophages also express Stab1, hematopoietic Stab1 deficiency does not modulate atherogenesis. Here, we comprehensively studied how targeting Stab1 and Stab2 affects atherosclerosis. METHODS ApoE-KO mice were interbred with Stab1-KO and Stab2-KO mice and fed a Western diet. For antibody targeting, Ldlr-KO mice were also used. Unbiased plasma proteomics were performed and independently confirmed. Ligand binding studies comprised glutathione-S-transferase-pulldown and endocytosis assays. Plasma proteome effects on monocytes were studied by single-cell RNA sequencing in vivo, and by gene expression analyses of Stabilin ligand-stimulated and plasma-stimulated bone marrow-derived monocytes/macrophages in vitro. RESULTS Spontaneous and Western diet-associated atherogenesis was significantly reduced in ApoE-Stab1-KO and ApoE-Stab2-KO mice. Similarly, inhibition of Stab1 or Stab2 by monoclonal antibodies significantly reduced Western diet-associated atherosclerosis in ApoE-KO and Ldlr-KO mice. Although neither plasma lipid levels nor circulating immune cell numbers were decisively altered, plasma proteomics revealed a switch in the plasma proteome, consisting of 231 dysregulated proteins comparing wildtype with Stab1/2-single and Stab1/2-double KO, and of 41 proteins comparing ApoE-, ApoE-Stab1-, and ApoE-Stab2-KO. Among this broad spectrum of common, but also disparate scavenger receptor ligand candidates, periostin, reelin, and TGFBi (transforming growth factor, β-induced), known to modulate atherosclerosis, were independently confirmed as novel circulating ligands of Stab1/2. Single-cell RNA sequencing of circulating myeloid cells of ApoE-, ApoE-Stab1-, and ApoE-Stab2-KO mice showed transcriptomic alterations in patrolling (Ccr2-/Cx3cr1++/Ly6Clo) and inflammatory (Ccr2+/Cx3cr1+/Ly6Chi) monocytes, including downregulation of proatherogenic transcription factor Egr1. In wildtype bone marrow-derived monocytes/macrophages, ligand exposure alone did not alter Egr1 expression in vitro. However, exposure to plasma from ApoE-Stab1-KO and ApoE-Stab2-KO mice showed a reverted proatherogenic macrophage activation compared with ApoE-KO plasma, including downregulation of Egr1 in vitro. CONCLUSIONS Inhibition of Stab1/Stab2 mediates an anti-inflammatory switch in the plasma proteome, including direct Stabilin ligands. The altered plasma proteome suppresses both patrolling and inflammatory monocytes and, thus, systemically protects against atherogenesis. Altogether, anti-Stab1- and anti-Stab2-targeted therapies provide a novel approach for the future treatment of atherosclerosis.
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Affiliation(s)
- Calin-Petru Manta
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Thomas Leibing
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Mirco Friedrich
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Neurology, MCTN (M.F., M.P.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,DKTK Clinical Cooperation Unit Neuroimmunology and Brain Tumor Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany (M.F., M.P.)
| | - Hendrik Nolte
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Institute for Genetics and CECAD, University of Cologne, Germany (H.N., M.K.).,Max Planck Institute for Biology of Ageing, Cologne, Germany (H.N.)
| | - Monica Adrian
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Kai Schledzewski
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Jessica Krzistetzko
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Christof Kirkamm
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Christian David Schmid
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Yannick Xi
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Ana Stojanovic
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Immunobiochemistry, Mannheim Institute for Innate Immunoscience, MI3 (A.S., A.C.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Sarah Tonack
- Max Planck Institute for Heart and Lung Research, Department of Pharmacology, Bad Nauheim, Germany (S.T., S.O., M.K.)
| | - Carolina de la Torre
- Centre for Medical Research (ZMF) (C.d.l.T.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Seddik Hammad
- Department of Medicine II (S.H.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Stefan Offermanns
- Max Planck Institute for Heart and Lung Research, Department of Pharmacology, Bad Nauheim, Germany (S.T., S.O., M.K.)
| | - Marcus Krüger
- Institute for Genetics and CECAD, University of Cologne, Germany (H.N., M.K.).,Max Planck Institute for Heart and Lung Research, Department of Pharmacology, Bad Nauheim, Germany (S.T., S.O., M.K.)
| | - Adelheid Cerwenka
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Immunobiochemistry, Mannheim Institute for Innate Immunoscience, MI3 (A.S., A.C.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Michael Platten
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Neurology, MCTN (M.F., M.P.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,DKTK Clinical Cooperation Unit Neuroimmunology and Brain Tumor Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany (M.F., M.P.)
| | - Sergij Goerdt
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Cyrill Géraud
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
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154
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Lissek T. Activity-Dependent Induction of Younger Biological Phenotypes. Adv Biol (Weinh) 2022; 6:e2200119. [PMID: 35976161 DOI: 10.1002/adbi.202200119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/11/2022] [Indexed: 01/28/2023]
Abstract
In several mammalian species, including humans, complex stimulation patterns such as cognitive and physical exercise lead to improvements in organ function, organism health and performance, as well as possibly longer lifespans. A framework is introduced here in which activity-dependent transcriptional programs, induced by these environmental stimuli, move somatic cells such as neurons and muscle cells toward a state that resembles younger cells to allow remodeling and adaptation of the organism. This cellular adaptation program targets several process classes that are heavily implicated in aging, such as mitochondrial metabolism, cell-cell communication, and epigenetic information processing, and leads to functional improvements in these areas. The activity-dependent gene program (ADGP) can be seen as a natural, endogenous cellular reprogramming mechanism that provides deep insight into the principles of inducible improvements in cell and organism function and can guide the development of therapeutic approaches for longevity. Here, these ADGPs are analyzed, exemplary critical molecular nexus points such as cAMP response element-binding protein, myocyte enhancer factor 2, serum response factor, and c-Fos are identified, and it is explored how one may leverage them to prevent, attenuate, and reverse human aging-related decline of body function.
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Affiliation(s)
- Thomas Lissek
- Interdisciplinary Center for Neurosciences, Heidelberg University, Im Neuenheimer Feld 366, 69120, Heidelberg, Germany
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155
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Abstract
Age is the key risk factor for diseases and disabilities of the elderly. Efforts to tackle age-related diseases and increase healthspan have suggested targeting the ageing process itself to 'rejuvenate' physiological functioning. However, achieving this aim requires measures of biological age and rates of ageing at the molecular level. Spurred by recent advances in high-throughput omics technologies, a new generation of tools to measure biological ageing now enables the quantitative characterization of ageing at molecular resolution. Epigenomic, transcriptomic, proteomic and metabolomic data can be harnessed with machine learning to build 'ageing clocks' with demonstrated capacity to identify new biomarkers of biological ageing.
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Affiliation(s)
- Jarod Rutledge
- Department of Genetics, Stanford University, Stanford, CA, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
- Paul F. Glenn Center for the Biology of Ageing, Stanford University School of Medicine, Stanford, CA, USA
| | - Hamilton Oh
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
- Paul F. Glenn Center for the Biology of Ageing, Stanford University School of Medicine, Stanford, CA, USA
- Graduate Program in Stem Cell and Regenerative Medicine, Stanford University, Stanford, CA, USA
| | - Tony Wyss-Coray
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA.
- Paul F. Glenn Center for the Biology of Ageing, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.
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156
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Jin M, Cai SQ. Mechanisms Underlying Brain Aging Under Normal and Pathological Conditions. Neurosci Bull 2022; 39:303-314. [PMID: 36437436 PMCID: PMC9905409 DOI: 10.1007/s12264-022-00969-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 06/17/2022] [Indexed: 11/28/2022] Open
Abstract
Aging is a major risk factor for many human diseases, including cognitive impairment, which affects a large population of the elderly. In the past few decades, our understanding of the molecular and cellular mechanisms underlying the changes associated with aging and age-related diseases has expanded greatly, shedding light on the potential role of these changes in cognitive impairment. In this article, we review recent advances in understanding of the mechanisms underlying brain aging under normal and pathological conditions, compare their similarities and differences, discuss the causative and adaptive mechanisms of brain aging, and finally attempt to find some rules to guide us on how to promote healthy aging and prevent age-related diseases.
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Affiliation(s)
- Menglong Jin
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031 China ,University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Shi-Qing Cai
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.
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157
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Rommer PS, Bsteh G, Zrzavy T, Hoeftberger R, Berger T. Immunosenescence in Neurological Diseases-Is There Enough Evidence? Biomedicines 2022; 10:2864. [PMID: 36359383 PMCID: PMC9687682 DOI: 10.3390/biomedicines10112864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/04/2022] [Accepted: 11/06/2022] [Indexed: 11/15/2023] Open
Abstract
The aging of the immune system has recently attracted a lot of attention. Immune senescence describes changes that the immune system undergoes over time. The importance of immune senescence in neurological diseases is increasingly discussed. For this review, we considered studies that investigated cellular changes in the aging immune system and in neurological disease. Twenty-six studies were included in our analysis (for the following diseases: multiple sclerosis, stroke, Parkinson's disease, and dementia). The studies differed considerably in terms of the patient groups included and the cell types studied. Evidence for immunosenescence in neurological diseases is currently very limited. Prospective studies in well-defined patient groups with appropriate control groups, as well as comprehensive methodology and reporting, are essential prerequisites to generate clear insights into immunosenescence in neurological diseases.
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Affiliation(s)
- Paulus S Rommer
- Department of Neurology, Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, 1090 Vienna, Austria
| | - Gabriel Bsteh
- Department of Neurology, Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, 1090 Vienna, Austria
| | - Tobias Zrzavy
- Department of Neurology, Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, 1090 Vienna, Austria
| | - Romana Hoeftberger
- Department of Neurology, Division of Neuropathology and Neurochemistry, Comprohensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas Berger
- Department of Neurology, Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, 1090 Vienna, Austria
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158
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Peralta Ramos JM, Kviatcovsky D, Schwartz M. Targeting the immune system towards novel therapeutic avenues to fight brain aging and neurodegeneration. Eur J Neurosci 2022; 56:5413-5427. [PMID: 35075702 DOI: 10.1111/ejn.15609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 12/14/2022]
Abstract
The incidence of age-related dementia is growing with increased longevity, yet there are currently no disease-modifying therapies for these devastating disorders. Studies over the last several years have led to an evolving awareness of the role of the immune system in supporting brain maintenance and repair, displaying a diverse repertoire of functions while orchestrating the crosstalk between the periphery and the brain. Here, we provide insights into the current understanding of therapeutic targets that could be adopted to modulate immune cell fate, either systemically or locally, to defeat brain aging and neurodegeneration.
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Affiliation(s)
| | - Denise Kviatcovsky
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Michal Schwartz
- Department of Brain Sciences, Weizmann Institute of Science, Rehovot, Israel
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159
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Wu N, Xiao F, Zhang J, Chi Y, Zhai Y, Chen B, Lu J. Proteomic characteristics of plasma and blood cells in natural aging rhesus monkeys. Proteomics 2022; 22:e2200049. [PMID: 36037246 DOI: 10.1002/pmic.202200049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 07/13/2022] [Accepted: 08/09/2022] [Indexed: 12/29/2022]
Abstract
Aging has become a serious social issue that places a heavy burden on society. However, the underlying mechanisms of aging remain unclear. This study sought to understand the aging process as it may be affected by proteins in the blood, the most important functional system for material transportation in the body. We analyzed and compared the protein expression spectrums in the blood of old and young rhesus monkeys and found 257 proteins expressed differentially in plasma and 1183 proteins expressed differentially in blood cells. Through bioinformatics analysis, we found that the differentially-expressed proteins in plasma were involved in signal pathways related to complement and coagulation cascades, pertussis, malaria, phagosome, and cholesterol metabolism, while the differentially-expressed proteins in blood cells were involved in endocytosis, proteasome, ribosome, protein processing in the endoplasmic reticulum, and Parkinson's disease. We confirmed that the protein levels of complement C2 in plasma and actin-related protein 2/3 complex subunit 2 (ARPC2) in blood cells obviously decreased, whereas the complement C3 and complement component 4 binding protein beta (C4BPB) significantly increased in plasma of old rhesus monkeys and C57BL/6 mice. Our results suggest that C2, C3, C4BPB, and ARPC2 can be used as target proteins for anti-aging research.
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Affiliation(s)
- Na Wu
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China
| | - Fuchuan Xiao
- Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jing Zhang
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China.,Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yafei Chi
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China
| | - Yanan Zhai
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China
| | - Baian Chen
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China.,Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jing Lu
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China.,Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
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160
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Mehdipour M, Amiri P, Liu C, DeCastro J, Kato C, Skinner CM, Conboy MJ, Aran K, Conboy IM. Small-animal blood exchange is an emerging approach for systemic aging research. Nat Protoc 2022; 17:2469-2493. [PMID: 35986217 PMCID: PMC10035053 DOI: 10.1038/s41596-022-00731-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 06/08/2022] [Indexed: 01/28/2023]
Abstract
We describe a small-animal blood exchange approach developed for aging research as an alternative to heterochronic parabiosis or plasma injections. In parabiosis, animals are surgically coupled, which has several disadvantages, including difficulty controlling experimental procedure, the effects of shared organs, environmental enrichment from jointly exploring the housing enclosure, involuntary exercise and an imprecise onset of blood sharing. Likewise, in plasma injections, the added volumes need to be small, and there is little flexibility in changing the relative contributions of ectopic to endogenous blood components. These factors complicate the conclusions and interpretations, including the identification of key mechanisms and molecular or cellular determinants. Our approach, where blood is exchanged between animals without them being surgically coupled, is less invasive than parabiosis. The percentage of exchanged blood or other exchanged fluids is known and precise. The age of plasma and cells can be mixed and matched at all desired relative contributions to the endogenous systemic milieu, and the onset of the effects can be accurately delineated. In this protocol, we describe the preparatory and animal surgery steps required for small-animal blood exchange in mice and compare this process with parabiosis and plasma injections. We also provide the design, hardware and software for the blood exchange device and compare automated and manual exchange methods. Lastly, we report mathematical modeling of the dilution of blood factors. The fluid exchange takes ~30 min when performed by a well-trained biomedical scientist; the entire process takes ~2 h.
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Affiliation(s)
- Melod Mehdipour
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Payam Amiri
- Keck Graduate Institute, The Claremont Colleges, Claremont, CA, USA
| | - Chao Liu
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Jonalyn DeCastro
- Keck Graduate Institute, The Claremont Colleges, Claremont, CA, USA
| | - Cameron Kato
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Colin M Skinner
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Michael J Conboy
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Kiana Aran
- Keck Graduate Institute, The Claremont Colleges, Claremont, CA, USA
| | - Irina M Conboy
- Department of Bioengineering and QB3 Institute, University of California, Berkeley, Berkeley, CA, USA.
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161
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Ullah A, Kwon HT, Lim SI. Albumin: A Multi-talented Clinical and Pharmaceutical Player. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-022-0104-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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162
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Rodriguez SL, Carver CM, Dosch AJ, Huffman DM, Duke Boynton FD, Ayasoufi K, Schafer MJ. An optimized mouse parabiosis protocol for investigation of aging and rejuvenative mechanisms. FRONTIERS IN AGING 2022; 3:993658. [PMID: 36276605 PMCID: PMC9582328 DOI: 10.3389/fragi.2022.993658] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/06/2022] [Indexed: 11/07/2022]
Abstract
Surgical parabiosis enables sharing of the circulating milieu between two organisms. This powerful model presents diverse complications based on age, strain, sex, and other experimental parameters. Here, we provide an optimized parabiosis protocol for the surgical union of two mice internally at the elbow and knee joints with continuous external joining of the skin. This protocol incorporates guidance and solutions to complications that can occur, particularly in aging studies, including non-cohesive pairing, variable anesthesia sensitivity, external and internal dehiscence, dehydration, and weight loss. We also offer a straightforward method for validating postoperative blood chimerism and confirming its time course using flow cytometry. Utilization of our optimized protocol can facilitate reproducible parabiosis experimentation to dynamically explore mechanisms of aging and rejuvenation.
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Affiliation(s)
- Sonia L. Rodriguez
- Department of Physiology and Biomedical Engineering Research, Mayo Clinic, Rochester, MN, United States
| | - Chase M. Carver
- Department of Physiology and Biomedical Engineering Research, Mayo Clinic, Rochester, MN, United States
| | - Andrew J. Dosch
- Department of Physiology and Biomedical Engineering Research, Mayo Clinic, Rochester, MN, United States
| | - Derek M. Huffman
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States,Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States
| | | | | | - Marissa J. Schafer
- Department of Physiology and Biomedical Engineering Research, Mayo Clinic, Rochester, MN, United States,Department of Neurology, Mayo Clinic, Rochester, MN, United States,Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, United States,*Correspondence: Marissa J. Schafer,
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163
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Clement J, Yan Q, Agrawal M, Coronado RE, Sturges JA, Horvath M, Lu AT, Brooke RT, Horvath S. Umbilical cord plasma concentrate has beneficial effects on DNA methylation GrimAge and human clinical biomarkers. Aging Cell 2022; 21:e13696. [PMID: 36052758 PMCID: PMC9577957 DOI: 10.1111/acel.13696] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 06/16/2022] [Accepted: 07/04/2022] [Indexed: 01/25/2023] Open
Abstract
Plasma transfusions are standard treatments to replace missing proteins in people with rare genetic diseases. Prior studies have demonstrated that heterochronic parabiosis has beneficial effects on several tissues of old animals receiving young blood. Human clinical trials are currently underway to investigate whether the infusion of plasma or plasma-derived factors from young donors can be used to mitigate human age-related conditions. Here, we use data from a safety study (n = 18, mean age 74) to investigate whether human umbilical cord plasma concentrate (hereinafter Plasma Concentrate) injected weekly (1 ml intramuscular) into elderly human subjects over a 10-week period affects different biomarkers, including epigenetic age measures, standard clinical biomarkers of organ dysfunction, mitochondrial DNA copy number (mtDNA-CN), and leukocyte telomere length. This study shows that treatment with plasma concentrate is safe. More than 20 clinical biomarkers were significantly and beneficially altered following the treatments. For example, creatinine was significantly decreased (p = 0.0039), while estimated glomerular filtration rate (eGFR) was increased (p = 0.0044), indicating the treatment may improve biomarkers of kidney function. Three of four immunoglobulin biomarkers decreased, while telomere length and mtDNA-CN were not significantly affected by the treatment. The treatment reduced DNA methylation-based GrimAge by an average of 0.82 years (p = 0.0093), suggests a reduction in morbidity and mortality risk. By contrast, no significant results could be observed for epigenetic clocks that estimate chronological age. Our results support the view that plasma concentrate contains youth-promoting factors.
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Affiliation(s)
- James Clement
- Betterhumans Inc.GainesvilleFloridaUSA,Department of Chemical, Pharmaceutical and Agricultural SciencesUniversity of FerraraFerraraItaly
| | - Qi Yan
- Epigenetic Clock Development FoundationTorranceCaliforniaUSA
| | | | - Ramon E. Coronado
- Transplant Department, UT Health San AntonioSan AntonioTexasUSA,Department of Obstetrics and GynecologyBaylor College of MedicineHoustonTexasUSA,Signature BiologicsIrvingTexasUSA,Crown ScientificSan AntonioTexasUSA
| | | | - Markus Horvath
- Epigenetic Clock Development FoundationTorranceCaliforniaUSA
| | - Ake T. Lu
- Department of Human Genetics, David Geffen School of MedicineUniversity of CaliforniaLos AngelesCaliforniaUSA,Altos LabsSan DiegoUSA
| | | | - Steve Horvath
- Department of Human Genetics, David Geffen School of MedicineUniversity of CaliforniaLos AngelesCaliforniaUSA,Department of Biostatistics, Fielding School of Public HealthUniversity of CaliforniaLos AngelesCaliforniaUSA
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164
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Wilmanski T, Gibbons SM, Price ND. Healthy aging and the human gut microbiome: why we cannot just turn back the clock. NATURE AGING 2022; 2:869-871. [PMID: 37118282 PMCID: PMC10155257 DOI: 10.1038/s43587-022-00294-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Affiliation(s)
| | - Sean M Gibbons
- Institute for Systems Biology, Seattle, WA, USA.
- Department of Bioengineering, University of Washington, Seattle, WA, USA.
- eScience Institute, University of Washington, Seattle, WA, USA.
| | - Nathan D Price
- Institute for Systems Biology, Seattle, WA, USA.
- Department of Bioengineering, University of Washington, Seattle, WA, USA.
- Thorne HealthTech, New York, NY, USA.
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165
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Urayama A, Moreno-Gonzalez I, Morales-Scheihing D, Kharat V, Pritzkow S, Soto C. Preventive and therapeutic reduction of amyloid deposition and behavioral impairments in a model of Alzheimer's disease by whole blood exchange. Mol Psychiatry 2022; 27:4285-4296. [PMID: 35835859 PMCID: PMC10601825 DOI: 10.1038/s41380-022-01679-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 06/07/2022] [Accepted: 06/27/2022] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is the major form of dementia in the elderly population. The main neuropathological changes in AD patients are neuronal death, synaptic alterations, brain inflammation, and the presence of cerebral protein aggregates in the form of amyloid plaques and neurofibrillary tangles. Compelling evidence suggests that the misfolding, aggregation, and cerebral deposition of amyloid-beta (Aβ) plays a central role in the disease. Thus, prevention and removal of misfolded protein aggregates is considered a promising strategy to treat AD. In the present study, we describe that the development of cerebral amyloid plaques in a transgenic mice model of AD (Tg2576) was significantly reduced by 40-80% through exchanging whole blood with normal blood from wild type mice having the same genetic background. Importantly, such reduction resulted in improvement in spatial memory performance in aged Tg2576 mice. The exact mechanism by which blood exchange reduces amyloid pathology and improves memory is presently unknown, but measurements of Aβ in plasma soon after blood exchange suggest that mobilization of Aβ from the brain to blood may be implicated. Our results suggest that a target for AD therapy may exist in the peripheral circulation, which could open a novel disease-modifying intervention for AD.
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Affiliation(s)
- Akihiko Urayama
- Mitchell Center for Alzheimer's disease and related Brain disorders, Department of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - Ines Moreno-Gonzalez
- Mitchell Center for Alzheimer's disease and related Brain disorders, Department of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
- Department of Cell Biology, Genetic and Physiology, Faculty of Sciences, Instituto de Investigacion Biomedica de Malaga-IBIMA, Networking Research Center on Neurodegenerative Diseases (CIBERNED), University of Malaga, Málaga, Spain
| | - Diego Morales-Scheihing
- Mitchell Center for Alzheimer's disease and related Brain disorders, Department of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Vineetkumar Kharat
- Mitchell Center for Alzheimer's disease and related Brain disorders, Department of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Sandra Pritzkow
- Mitchell Center for Alzheimer's disease and related Brain disorders, Department of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Claudio Soto
- Mitchell Center for Alzheimer's disease and related Brain disorders, Department of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA.
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166
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Parabiosis Improves Endothelial Dysfunction in Aged Female Mice. J Surg Res 2022; 278:119-131. [DOI: 10.1016/j.jss.2022.04.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 01/26/2022] [Accepted: 04/19/2022] [Indexed: 11/22/2022]
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167
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Tari AR, Berg HH, Videm V, Bråthen G, White LR, Røsbjørgen RN, Scheffler K, Dalen H, Holte E, Haberg AK, Selbaek G, Lydersen S, Duezel E, Bergh S, Logan-Halvorsrud KR, Sando SB, Wisløff U. Safety and efficacy of plasma transfusion from exercise-trained donors in patients with early Alzheimer's disease: protocol for the ExPlas study. BMJ Open 2022; 12:e056964. [PMID: 36538409 PMCID: PMC9453994 DOI: 10.1136/bmjopen-2021-056964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Given that exercise training reduces the risk of developing Alzheimer's disease (AD), induces changes in the blood composition and has widespread systemic benefits, it is reasonable to hypothesise that exercised plasma (ExPlas) may have rejuvenative properties. The main objective is to test safety and tolerability of transfusing ExPlas from young, healthy, fit adults to patients with mild cognitive impairment (MCI) or early AD. The study is a pilot for a future efficacy study. The key secondary objectives are examining the effect of plasma transfusions on cognitive function, fitness level, vascular risk profile, assessment of cerebral blood flow and hippocampal volume, quality of life, functional connectivity assessed by resting state functional MRI and biomarkers in blood and cerebrospinal fluid. METHODS AND ANALYSIS ExPlas is a double-blinded, randomised controlled clinical single-centre trial. Patients up to 75 years of age with diagnosis early symptomatic phase AD will be recruited from two Norwegian hospitals. ExPlas is plasma drawn by plasmapheresis once a month for 4 months, from a total of 30 fit male donors (aged 18-40, BMI≤27 kg/m2 and maximal oxygen uptake>55 mL/kg/min). All units will be virus inactivated by the Intercept method in accordance with procedures at St. Olavs University Hospital. Comparison with isotonic saline allows differentiation from a non-blood product. The main study consists of 6 rounds of examinations in addition to 12 plasma transfusions divided over three 4-week periods during study year-1. It is also planned to conduct follow-up examinations 2 and 5 years after baseline ETHICS AND DISSEMINATION: Written informed consent will be obtained from all participants and participation is voluntary. All participants have a next of kin who will follow them throughout the study to represent the patient's interest. The study is approved by the Regional Committee for Medical and Health Research Ethics (REK 2018/702) and the Norwegian Medicines Agency (EudraCT No. 2018-000148-24). The study will be published in an open access journal and results will be presented at numerous national and international meetings as well as on social media platforms. TRIAL REGISTRATION NUMBER EudraCT No. 2018-000148-24. CLINICALTRIALS gov, NCT05068830.
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Affiliation(s)
- Atefe R Tari
- Cardiac Exercise Research Group at the Department of Circulation and Medical Imaging, Norwegian University of Science and Technology Faculty of Medicine and Health Sciences, Trondheim, Norway
- Department of Neurology and Clinical Neurophysiology, St. Olavs University Hospital, Trondheim, Norway
| | - Helene Haugen Berg
- Cardiac Exercise Research Group at the Department of Circulation and Medical Imaging, Norwegian University of Science and Technology Faculty of Medicine and Health Sciences, Trondheim, Norway
- Department of Neurology and Clinical Neurophysiology, St. Olavs University Hospital, Trondheim, Norway
| | - Vibeke Videm
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Immunology and Transfusion Medicine, St Olavs University Hosptial, Trondheim, Norway
| | - Geir Bråthen
- Department of Neurology and Clinical Neurophysiology, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Linda R White
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ragnhild Nyhus Røsbjørgen
- Cardiac Exercise Research Group at the Department of Circulation and Medical Imaging, Norwegian University of Science and Technology Faculty of Medicine and Health Sciences, Trondheim, Norway
| | - Katja Scheffler
- Department of Neurology and Clinical Neurophysiology, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Havard Dalen
- Cardiac Exercise Research Group at the Department of Circulation and Medical Imaging, Norwegian University of Science and Technology Faculty of Medicine and Health Sciences, Trondheim, Norway
- Department of Medicine, Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
- Clinic of Cardiology, St. Olavs University Hospital, Trondheim, Norway
| | - Espen Holte
- Clinic of Cardiology, St. Olavs University Hospital, Trondheim, Norway
| | - Asta K Haberg
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Radiology and Nuclear Medicine, St. Olavs University Hospital, Trondheim, Norway
| | - Geir Selbaek
- Norwegian National Advisory Unit on Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norway
- Department of Geriatric Medicine, Oslo University Hospital-Ullevål, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Stian Lydersen
- Department of Mental Health, Regional Centre for Child and Youth Mental Health and Child Welfare, Norwegian University of Science and Technology, Trondheim, Norway
| | - Emrah Duezel
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Sverre Bergh
- Research Centre for Age-related Functional Decline and Disease, Innlandet Hospital Trust, Ottestad, Norway
| | | | - Sigrid Botne Sando
- Department of Neurology and Clinical Neurophysiology, St. Olavs University Hospital, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ulrik Wisløff
- Cardiac Exercise Research Group at the Department of Circulation and Medical Imaging, Norwegian University of Science and Technology Faculty of Medicine and Health Sciences, Trondheim, Norway
- School of Human Movement and Nutrition Science, University of Queensland, Queensland, Australia
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168
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Li Y, Zhang Q, Yan W, Wang X, Yu J, Yin C, Zhou Q, Hou Z, Wang Q. Young plasma reverses anesthesia and surgery-induced cognitive impairment in aged rats by modulating hippocampal synaptic plasticity. Front Aging Neurosci 2022; 14:996223. [PMID: 36147703 PMCID: PMC9485610 DOI: 10.3389/fnagi.2022.996223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
We investigated the protective effect of young plasma on anesthesia- and surgery-induced cognitive impairment and the potential underlying mechanism using bioinformatics, functional enrichment analysis, gene set enrichment analysis, Golgi-Cox staining, dendritic spine analysis, immunofluorescence assay, western blot analysis, and transmission electron microscopy. Furthermore, we performed behavioral assessments using the open field test, the novel object recognition test, and the Morris water maze test. We identified 1969 differentially expressed genes induced by young plasma treatment, including 800 upregulated genes and 1169 downregulated genes, highlighting several enriched biological processes (signal release from synapse, postsynaptic density and neuron to neuron synapse). Anesthesia- and surgery-induced cognitive impairment in aged rats was comparatively less severe following young plasma preinfusion. In addition, the decreased levels of synapse-related and tyrosine kinase B/extracellular signal-regulated protein kinase/cyclic adenosine monophosphate response element-binding protein (TrkB/ERK/CREB) signaling pathway-related proteins, dendritic and spine deficits, and ultrastructural changes were ameliorated in aged mice following young plasma preinfusion. Together, these findings suggest that young plasma reverses anesthesia- and surgery-induced cognitive impairment in aged rats and that the mechanism is associated with the activation of the TrkB/ERK/CREB signaling pathway and improvement in hippocampal synaptic plasticity.
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Affiliation(s)
- Yanan Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qi Zhang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Department of Anesthesiology, Hebei Children’s Hospital Affiliated to Hebei Medical University, Shijiazhuang, Hebei, China
| | - Wenyu Yan
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xupeng Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jiaxu Yu
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chunping Yin
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qi Zhou
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Zhiyong Hou
- Department of Orthopedics, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qiujun Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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169
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Teunissen CE, Middeldorp J. CSF factors in memory function. Lancet Neurol 2022; 21:765-767. [DOI: 10.1016/s1474-4422(22)00296-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/07/2022] [Indexed: 11/15/2022]
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170
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Britton R, Liu AT, Rege SV, Adams JM, Akrapongpisak L, Le D, Alcantara-Lee R, Estrada RA, Ray R, Ahadi S, Gallager I, Yang CF, Minami SS, Braithwaite SP, Czirr E, Campbell MK. Molecular and histological correlates of cognitive decline across age in male C57BL/6J mice. Brain Behav 2022; 12:e2736. [PMID: 35971662 PMCID: PMC9480918 DOI: 10.1002/brb3.2736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 07/01/2022] [Accepted: 07/20/2022] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Increasing age is the number one risk factor for developing cognitive decline and neurodegenerative disease. Aged humans and mice exhibit numerous molecular changes that contribute to a decline in cognitive function and increased risk of developing age-associated diseases. Here, we characterize multiple age-associated changes in male C57BL/6J mice to understand the translational utility of mouse aging. METHODS Male C57BL/6J mice from various ages between 2 and 24 months of age were used to assess behavioral, as well as, histological and molecular changes across three modalities: neuronal, microgliosis/neuroinflammation, and the neurovascular unit (NVU). Additionally, a cohort of 4- and 22-month-old mice was used to assess blood-brain barrier (BBB) breakdown. Mice in this cohort were treated with a high, acute dose of lipopolysaccharide (LPS, 10 mg/kg) or saline control 6 h prior to sacrifice followed by tail vein injection of 0.4 kDa sodium fluorescein (100 mg/kg) 2 h later. RESULTS Aged mice showed a decline in cognitive and motor abilities alongside decreased neurogenesis, proliferation, and synapse density. Further, neuroinflammation and circulating proinflammatory cytokines were increased in aged mice. Additionally, we found changes at the BBB, including increased T cell infiltration in multiple brain regions and an exacerbation in BBB leakiness following chemical insult with age. There were also a number of readouts that were unchanged with age and have limited utility as markers of aging in male C57BL/6J mice. CONCLUSIONS Here we propose that these changes may be used as molecular and histological readouts that correspond to aging-related behavioral decline. These comprehensive findings, in the context of the published literature, are an important resource toward deepening our understanding of normal aging and provide an important tool for studying aging in mice.
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Affiliation(s)
| | - Angela T Liu
- Alkahest, Inc., San Carlos, California, USA.,Coda Biotherapeutics, South San Francisco, California, USA
| | | | | | - Lily Akrapongpisak
- Alkahest, Inc., San Carlos, California, USA.,University of Queensland, Herston, Queensland, Australia
| | - David Le
- Alkahest, Inc., San Carlos, California, USA.,Fountain Therapeutics, South San Francisco, California, USA
| | | | | | - Rebecca Ray
- Alkahest, Inc., San Carlos, California, USA.,202 Chives Way, Walnut Creek, California, USA
| | - Sara Ahadi
- Alkahest, Inc., San Carlos, California, USA
| | | | | | | | | | - Eva Czirr
- Alkahest, Inc., San Carlos, California, USA.,Confluence Therapeutics, South San Francisco, California, USA
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171
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Shyu Y, Liao P, Huang T, Yang C, Lu M, Huang S, Lin X, Liou C, Kao Y, Lu C, Peng H, Chen J, Cherng W, Yang N, Chen Y, Pan H, Jiang S, Hsu C, Lin G, Yuan S, Hsu PW, Wu K, Lee T, Shen CJ. Genetic Disruption of KLF1 K74 SUMOylation in Hematopoietic System Promotes Healthy Longevity in Mice. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201409. [PMID: 35822667 PMCID: PMC9443461 DOI: 10.1002/advs.202201409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/10/2022] [Indexed: 05/22/2023]
Abstract
The quest for rejuvenation and prolonged lifespan through transfusion of young blood has been studied for decades with the hope of unlocking the mystery of the key substance(s) that exists in the circulating blood of juvenile organisms. However, a pivotal mediator has yet been identified. Here, atypical findings are presented that are observed in a knockin mouse model carrying a lysine to arginine substitution at residue 74 of Krüppel-like factor 1 (KLF1/EKLF), the SUMOylation-deficient Klf1K74R/K74R mouse, that displayed significant improvement in geriatric disorders and lifespan extension. Klf1K74R/K74R mice exhibit a marked delay in age-related physical performance decline and disease progression as evidenced by physiological and pathological examinations. Furthermore, the KLF1(K74R) knockin affects a subset of lymphoid lineage cells; the abundance of tumor infiltrating effector CD8+ T cells and NKT cells is increased resulting in antitumor immune enhancement in response to tumor cell administration. Significantly, infusion of hematopoietic stem cells (HSCs) from Klf1K74R/K74R mice extends the lifespan of the wild-type mice. The Klf1K74R/K74R mice appear to be an ideal animal model system for further understanding of the molecular/cellular basis of aging and development of new strategies for antiaging and prevention/treatment of age-related diseases thus extending the healthspan as well as lifespan.
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Affiliation(s)
- Yu‐Chiau Shyu
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
- Department of NursingChang Gung University of Science and TechnologyTaoyuan333Taiwan
| | - Po‐Cheng Liao
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Ting‐Shou Huang
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
- Department of General SurgeryChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
- School of Traditional Chinese MedicineCollege of MedicineChang Gung UniversityTaoyuan333Taiwan
| | - Chun‐Ju Yang
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Mu‐Jie Lu
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Shih‐Ming Huang
- Department of Radiation OncologyChung‐Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Xin‐Yu Lin
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Cai‐Cin Liou
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Yu‐Hsiang Kao
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Chi‐Huan Lu
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Hui‐Ling Peng
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Jim‐Ray Chen
- Department of PathologyChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Wen‐Jin Cherng
- Department of CardiologyChang Gung Memorial HospitalLinkou branchTaoyuan333Taiwan
| | - Ning‐I Yang
- Department of CardiologyChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Yung‐Chang Chen
- Department of NephrologyChang Gung Memorial HospitalLinkou branchTaoyuan333Taiwan
- Department of MedicineSchool of MedicineChang Gung UniversityTaoyuan333Taiwan
| | - Heng‐Chih Pan
- Community Medicine Research CenterChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
| | - Si‐Tse Jiang
- Department of General SurgeryChang Gung Memorial HospitalKeelung branchKeelung204Taiwan
- Department of Research and DevelopmentNational Laboratory Animal CenterTainan741Taiwan
| | - Chih‐Chin Hsu
- Department of MedicineSchool of MedicineChang Gung UniversityTaoyuan333Taiwan
- Department of Physical Medicine and RehabilitationChang Gung Memorial Hospital Keelung branchKeelung204Taiwan
| | - Gigin Lin
- Department of Medical Imaging and InterventionChang Gung Memorial HospitalLinkou branchTaoyuan333Taiwan
- Clinical Metabolomics Core LabChang Gung Memorial HospitalLinkou branchTaoyuan333Taiwan
- Department of Medical Imaging and Radiological SciencesChang Gung UniversityTaoyuan333Taiwan
| | - Shin‐Sheng Yuan
- Institute of Statistical ScienceAcademia SinicaTaipei115Taiwan
| | - Paul Wei‐Che Hsu
- Institute of Molecular and Genomic MedicineNational Health Research InstituteZhunan350Taiwan
| | - Kou‐Juey Wu
- Cancer Genome Research CenterChang Gung Memorial HospitalLinkou branchTaoyuan333Taiwan
| | - Tung‐Liang Lee
- Pro‐Clintech Co. Ltd.Keelung204Taiwan
- Institute of Molecular BiologyAcademia SinicaTaipei115Taiwan
| | - Che‐Kun James Shen
- Institute of Molecular BiologyAcademia SinicaTaipei115Taiwan
- Ph.D. Program in Medical NeuroscienceTaipei Medical UniversityTaipei110Taiwan
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172
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Huang H, Zhang Y, Yao C, He Q, Chen F, Yu H, Lu G, Jiang N, Liu X. The effects of fresh Gastrodia elata Blume on the cognitive deficits induced by chronic restraint stress. Front Pharmacol 2022; 13:890330. [PMID: 36105220 PMCID: PMC9464977 DOI: 10.3389/fphar.2022.890330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/03/2022] [Indexed: 12/03/2022] Open
Abstract
Chronic restraint stress (CRS) is a classic animal model of stress that can lead to various physiological and psychological dysfunctions, including systemic neuroinflammation and memory deficits. Fresh Gastrodia elata Blume (FG), the unprocessed raw tuber of Gastrodia elata Blume, has been reported to alleviate the symptoms of headache, convulsions, and neurodegenerative diseases, while the protective effects of FG on CRS-induced cognitive deficits remain unclear. This work aimed to evaluate the effects of FG on CRS-induced cognitive deficits through multiplex animal behavior tests and to further explore the related mechanism by observing the expression of mitochondrial apoptosis-related proteins in the mouse hippocampus. In in vivo experiments, mice were subjected to the object location recognition test (OLRT), new object recognition test (NORT), Morris water maze test (MWMT), and passive avoidance test (PAT) to evaluate the learning and memory ability. In in vitro experiments, the expression of the AKT/CREB pathway, the fission- and apoptosis-related proteins (Drp1, Cyt C, and BAX), and the proinflammatory cytokines’ (TNF‐α and IL‐1β) level in the hippocampus was examined. Our results demonstrated that in spontaneous behavior experiments, FG significantly improved the cognitive performance of CRS model mice in OLRT (p < 0.05) and NORT (p < 0.05). In punitive behavior experiments, FG shortened the escape latency in long-term spatial memory test (MWMT, p < 0.01) and prolonged the latency into the dark chamber in non-spatial memory test (PAT, p < 0.01). Biochemical analysis showed that FG treatment significantly suppressed CRS‐induced Cyt C, Drp1, and BAX activation (p < 0.001, p < 0.01 and p < 0.05), promoted the CREB, p-CREB, AKT, and p-AKT level (p < 0.05, p < 0.01 and p < 0.001), and inhibited the CRS‐induced proinflammatory cytokines (TNF‐α and IL‐1β, p < 0.05 and p < 0.001) level in the hippocampus. Taken together, these results suggested that FG could attenuate cognitive deficits induced by CRS on multiple learning and memory behavioral tests.
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Affiliation(s)
- Hong Huang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yiwen Zhang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Caihong Yao
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qinghu He
- Sino-Pakistan Center on Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, China
| | - Fang Chen
- Hunan University of Chinese Medicine, College of Traditional Chinese Medicine, Changsha, China
| | - Han Yu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guanghua Lu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ning Jiang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Ning Jiang, ; Xinmin Liu,
| | - Xinmin Liu
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, China
- *Correspondence: Ning Jiang, ; Xinmin Liu,
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173
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Höving AL, Schmidt KE, Kaltschmidt B, Kaltschmidt C, Knabbe C. The Role of Blood-Derived Factors in Protection and Regeneration of Aged Tissues. Int J Mol Sci 2022; 23:ijms23179626. [PMID: 36077021 PMCID: PMC9455681 DOI: 10.3390/ijms23179626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/17/2022] [Accepted: 08/19/2022] [Indexed: 12/02/2022] Open
Abstract
Tissue regeneration substantially relies on the functionality of tissue-resident endogenous adult stem cell populations. However, during aging, a progressive decline in organ function and regenerative capacities impedes endogenous repair processes. Especially the adult human heart is considered as an organ with generally low regenerative capacities. Interestingly, beneficial effects of systemic factors carried by young blood have been described in diverse organs including the heart, brain and skeletal muscle of the murine system. Thus, the interest in young blood or blood components as potential therapeutic agents to target age-associated malignancies led to a wide range of preclinical and clinical research. However, the translation of promising results from the murine to the human system remains difficult. Likewise, the establishment of adequate cellular models could help to study the effects of human blood plasma on the regeneration of human tissues and particularly the heart. Facing this challenge, this review describes the current knowledge of blood plasma-mediated protection and regeneration of aging tissues. The current status of preclinical and clinical research examining blood borne factors that act in stem cell-based tissue maintenance and regeneration is summarized. Further, examples of cellular model systems for a more detailed examination of selected regulatory pathways are presented.
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Affiliation(s)
- Anna L. Höving
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany
- Correspondence:
| | - Kazuko E. Schmidt
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Barbara Kaltschmidt
- AG Molecular Neurobiology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department of Cell Biology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Cornelius Knabbe
- Heart and Diabetes Centre NRW, Institute for Laboratory and Transfusion Medicine, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
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174
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Adesse D, Gladulich L, Alvarez-Rosa L, Siqueira M, Marcos AC, Heider M, Motta CS, Torices S, Toborek M, Stipursky J. Role of aging in Blood-Brain Barrier dysfunction and susceptibility to SARS-CoV-2 infection: impacts on neurological symptoms of COVID-19. Fluids Barriers CNS 2022; 19:63. [PMID: 35982454 PMCID: PMC9386676 DOI: 10.1186/s12987-022-00357-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 07/18/2022] [Indexed: 12/21/2022] Open
Abstract
COVID-19, which is caused by Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-CoV-2), has resulted in devastating morbidity and mortality worldwide due to lethal pneumonia and respiratory distress. In addition, the central nervous system (CNS) is well documented to be a target of SARS-CoV-2, and studies detected SARS-CoV-2 in the brain and the cerebrospinal fluid of COVID-19 patients. The blood-brain barrier (BBB) was suggested to be the major route of SARS-CoV-2 infection of the brain. Functionally, the BBB is created by an interactome between endothelial cells, pericytes, astrocytes, microglia, and neurons, which form the neurovascular units (NVU). However, at present, the interactions of SARS-CoV-2 with the NVU and the outcomes of this process are largely unknown. Moreover, age was described as one of the most prominent risk factors for hospitalization and deaths, along with other comorbidities such as diabetes and co-infections. This review will discuss the impact of SARS-CoV-2 on the NVU, the expression profile of SARS-CoV-2 receptors in the different cell types of the CNS and the possible role of aging in the neurological outcomes of COVID-19. A special emphasis will be placed on mitochondrial functions because dysfunctional mitochondria are also a strong inducer of inflammatory reactions and the "cytokine storm" associated with SARS-CoV-2 infection. Finally, we will discuss possible drug therapies to treat neural endothelial function in aged patients, and, thus, alleviate the neurological symptoms associated with COVID-19.
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Affiliation(s)
- Daniel Adesse
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, 4365, Pavilhão Carlos Chagas, sala 307b, Rio de Janeiro, RJ, 21040-360, Brazil.
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
| | - Luis Gladulich
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, 4365, Pavilhão Carlos Chagas, sala 307b, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Liandra Alvarez-Rosa
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, 4365, Pavilhão Carlos Chagas, sala 307b, Rio de Janeiro, RJ, 21040-360, Brazil
- Laboratório Compartilhado, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Michele Siqueira
- Laboratório Compartilhado, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Anne Caroline Marcos
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, 4365, Pavilhão Carlos Chagas, sala 307b, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Marialice Heider
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, 4365, Pavilhão Carlos Chagas, sala 307b, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Caroline Soares Motta
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, 4365, Pavilhão Carlos Chagas, sala 307b, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Silvia Torices
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Michal Toborek
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
- Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | - Joice Stipursky
- Laboratório Compartilhado, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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175
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New Trends in Aging Drug Discovery. Biomedicines 2022; 10:biomedicines10082006. [PMID: 36009552 PMCID: PMC9405986 DOI: 10.3390/biomedicines10082006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 11/17/2022] Open
Abstract
Aging is considered the main risk factor for many chronic diseases that frequently appear at advanced ages. However, the inevitability of this process is being questioned by recent research that suggests that senescent cells have specific features that differentiate them from younger cells and that removal of these cells ameliorates senescent phenotype and associated diseases. This opens the door to the design of tailored therapeutic interventions aimed at reducing and delaying the impact of senescence in life, that is, extending healthspan and treating aging as another chronic disease. Although these ideas are still far from reaching the bedside, it is conceivable that they will revolutionize the way we understand aging in the next decades. In this review, we analyze the main and well-validated cellular pathways and targets related to senescence as well as their implication in aging-associated diseases. In addition, the most relevant small molecules with senotherapeutic potential, with a special emphasis on their mechanism of action, ongoing clinical trials, and potential limitations, are discussed. Finally, a brief overview of alternative strategies that go beyond the small molecule field, together with our perspectives for the future of the field, is provided.
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176
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The effect of young blood plasma administration on gut microbiota in middle-aged rats. Arch Microbiol 2022; 204:541. [PMID: 35930195 DOI: 10.1007/s00203-022-03154-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 07/22/2022] [Accepted: 07/27/2022] [Indexed: 12/12/2022]
Abstract
Numerous in-depth studies continue to reveal the many benefits of gut microbiota and young blood plasma administration. Dysbiosis, which occurs in the intestinal microbiota, especially in the aging process, is associated with many metabolic and cognitive disorders. Therefore, many studies aim to reverse the dysbiosis that occurs. There are also studies showing that young blood plasma application reverses the effects of aging at the level of many tissues and organs. Today, while research continues to reveal all the benefits of young blood plasma application in terms of health, blood plasma centers are also being established. In this study, we aimed to reveal the impact of young blood plasma, administered for 1 month, on the intestinal microbiota of middle-aged rats. After detailed metagenome analysis, alpha diversity indices demonstrated greater bacterial richness in the microbiota of plasma-administered rats compared with control rats. In addition, the Firmicutes/Bacteroidetes ratio was significantly diminished in plasma group microbiota, confirming possible rejuvenation properties of young plasma. Furthermore, increased counts of Bifidobacterium longum, Coprococcus catus, and Romboutsia ilealis species were measured in plasma-administered rats. The study revealed many fluctuations in different bacterial taxonomic units of the microbiota that could be valuable in future research on blood-based anti-aging treatments.
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177
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Huang Y, Liu Z, Li N, Tian C, Yang H, Huo Y, Li Y, Zhang J, Yu Z. Parkinson's Disease Derived Exosomes Aggravate Neuropathology in SNCA*A53T Mice. Ann Neurol 2022; 92:230-245. [PMID: 35596947 DOI: 10.1002/ana.26421] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Accumulation of α-synuclein (α-syn) in neurons is a prominent feature of Parkinson's disease (PD). Recently, researchers have considered that extracellular vesicles (EVs) may play an important role in protein exportation and propagation, and α-syn-containing EVs derived from the central nervous system (CNS) have been detected in peripheral blood. However, mechanistic insights into CNS-derived EVs have not been well-described. METHODS Likely neurogenic EVs were purified from the plasma of PD patients and healthy controls using a well-established immunoprecipitation assay with anti-L1CAM-coated beads. A Prnp-SNCAA53T transgenic PD mouse model was used to evaluate the neuronal pathology induced by PD-derived L1CAM-purified EVs. EV-associated microRNA (miRNA) profiling was used to screen for altered miRNAs in PD-derived L1CAM-purified EVs. RESULTS PD patient-derived L1CAM-purified (likely neurogenic) EVs facilitated α-syn pathology and neuron loss in Prnp-SNCAA53T transgenic PD mice. The miRNA, novel_miR_44438, was significantly increased in the PD group, which promoted α-syn accumulation and neuronal degeneration in a dose-dependent manner. Novel _miR_44438 directly targets NDST1 mRNA and inhibits the function of heparan sulfate, thus preventing exosome biogenesis and α-syn release from exosomes. INTERPRETATION Novel_miR_44438 in PD-derived L1CAM-purified EVs inhibits the α-syn efflux from neurons thereby promoting the pathological accumulation and aggregation of α-syn. ANN NEUROL 2022;92:230-245.
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Affiliation(s)
- Yang Huang
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Centre, Beijing, China
| | - Zongran Liu
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Centre, Beijing, China
| | - Na Li
- Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu Province, China
| | - Chen Tian
- Department of Pathology, The First Affiliated Hospital and School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Han Yang
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Centre, Beijing, China
| | - Yanfei Huo
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Centre, Beijing, China
| | - Yang Li
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Centre, Beijing, China
- Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Jing Zhang
- Department of Pathology, The First Affiliated Hospital and School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
- National Health and Disease Human Brain Tissue Resource Center, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Zhenwei Yu
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
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178
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Liu CC, Zhao J, Fu Y, Inoue Y, Ren Y, Chen Y, Doss SV, Shue F, Jeevaratnam S, Bastea L, Wang N, Martens YA, Qiao W, Wang M, Zhao N, Jia L, Yamazaki Y, Yamazaki A, Rosenberg CL, Wang Z, Kong D, Li Z, Kuchenbecker LA, Trottier ZA, Felton L, Rogers J, Quicksall ZS, Linares C, Knight J, Chen Y, Kurti A, Kanekiyo T, Fryer JD, Asmann YW, Storz P, Wang X, Peng J, Zhang B, Kim BYS, Bu G. Peripheral apoE4 enhances Alzheimer's pathology and impairs cognition by compromising cerebrovascular function. Nat Neurosci 2022; 25:1020-1033. [PMID: 35915180 PMCID: PMC10009873 DOI: 10.1038/s41593-022-01127-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 06/22/2022] [Indexed: 12/21/2022]
Abstract
The ε4 allele of the apolipoprotein E (APOE) gene, a genetic risk factor for Alzheimer's disease, is abundantly expressed in both the brain and periphery. Here, we present evidence that peripheral apoE isoforms, separated from those in the brain by the blood-brain barrier, differentially impact Alzheimer's disease pathogenesis and cognition. To evaluate the function of peripheral apoE, we developed conditional mouse models expressing human APOE3 or APOE4 in the liver with no detectable apoE in the brain. Liver-expressed apoE4 compromised synaptic plasticity and cognition by impairing cerebrovascular functions. Plasma proteome profiling revealed apoE isoform-dependent functional pathways highlighting cell adhesion, lipoprotein metabolism and complement activation. ApoE3 plasma from young mice improved cognition and reduced vessel-associated gliosis when transfused into aged mice, whereas apoE4 compromised the beneficial effects of young plasma. A human induced pluripotent stem cell-derived endothelial cell model recapitulated the plasma apoE isoform-specific effect on endothelial integrity, further supporting a vascular-related mechanism. Upon breeding with amyloid model mice, liver-expressed apoE4 exacerbated brain amyloid pathology, whereas apoE3 reduced it. Our findings demonstrate pathogenic effects of peripheral apoE4, providing a strong rationale for targeting peripheral apoE to treat Alzheimer's disease.
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Affiliation(s)
- Chia-Chen Liu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA.
| | - Jing Zhao
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Yuan Fu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Yasuteru Inoue
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Yingxue Ren
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, USA
| | - Yuanxin Chen
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Sydney V Doss
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Francis Shue
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | | | - Ligia Bastea
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - Na Wang
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Yuka A Martens
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Wenhui Qiao
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Minghui Wang
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - Na Zhao
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Lin Jia
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Yu Yamazaki
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Akari Yamazaki
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | | | - Zhen Wang
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Dehui Kong
- Department of Biology, University of North Dakota, Grand Forks, ND, USA
| | - Zonghua Li
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | | | | | - Lindsey Felton
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Justin Rogers
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | | | - Cynthia Linares
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Joshua Knight
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Yixing Chen
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Aishe Kurti
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | | | - John D Fryer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Yan W Asmann
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL, USA
| | - Peter Storz
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - Xusheng Wang
- Department of Biology, University of North Dakota, Grand Forks, ND, USA
| | - Junmin Peng
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Betty Y S Kim
- Department of Neurosurgery, The Brain Tumor Center, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Guojun Bu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA.
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179
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Zhang D, Yang Y, Yang Y, Liu J, Zhu T, Huang H, Zhou C. Severe inflammation in new-borns induces long-term cognitive impairment by activation of IL-1β/KCC2 signaling during early development. BMC Med 2022; 20:235. [PMID: 35883093 PMCID: PMC9327322 DOI: 10.1186/s12916-022-02434-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/13/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Neonatal sepsis can induce long-term cognitive impairment in adolescence or adulthood, but the underlying molecular mechanism is not fully understood. The expression of K+-Cl- co-transporter 2 (KCC2) plays a pivotal role in the GABAergic shift from depolarizing to hyperpolarizing during early postnatal development. In this study, we aimed to determine whether neonatal severe inflammation-induced cognitive impairment was associated with the expression of KCC2 during early development. METHODS Neonatal severe inflammation was established by intraperitoneal injection of high dose lipopolysaccharide (LPS, 1 mg kg-1) in postnatal day 3 (P3) rats. The Morris water maze task and fear conditioning test were used to investigate long-term cognitive functions. ELISA, RT-PCR and Western blotting were used to examine the expression levels of proinflammatory cytokines and KCC2. Perforated patch-clamping recordings were used to determine the GABAergic shift. RESULTS Neonatal severe inflammation led to long-term cognitive impairment in rats. Meanwhile, sustained elevation of interleukin-1 beta (IL-1β) levels was found in the hippocampus until P30 after LPS injection. Elevated expression of KCC2 and hyperpolarized GABA reversal potential (EGABA) were observed in CA1 hippocampal pyramidal neurons from the P7-P10 and P14-P16 rats after LPS injection. Specific knockdown of IL-1β mRNA expression rescued the elevated expression of KCC2 and the hyperpolarized EGABA at P7-P10 and P14-P16. Accordingly, specific knockdown of IL-1β or KCC2 expression improved the cognitive impairment induced by neonatal severe inflammation. CONCLUSIONS Sustained elevation of IL-1β in the hippocampus may induce cognitive impairment by upregulation of KCC2 during early development.
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Affiliation(s)
- Donghang Zhang
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China.,Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Yujiao Yang
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Yaoxin Yang
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China.,Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Jin Liu
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China.,Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Tao Zhu
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Han Huang
- Department of Anesthesiology & Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital of Sichuan University, Chengdu, 610041, China.
| | - Cheng Zhou
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, 610041, China.
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180
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Huffels CFM, van Dijk RE, Karst H, Meye FJ, Hol EM, Middeldorp J. Systemic Injection of Aged Blood Plasma in Adult C57BL/6 Mice Induces Neurophysiological Impairments in the Hippocampal CA1. J Alzheimers Dis 2022; 89:283-297. [PMID: 35871343 DOI: 10.3233/jad-220337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Aging is characterized by systemic alterations and forms an important risk factor for Alzheimer's disease. Recently, it has been indicated that blood-borne factors present in the systemic milieu contribute to the aging process. Exposing young mice to aged blood plasma results in impaired neurogenesis and synaptic plasticity in the dentate gyrus, as well as impaired cognition. Vice versa, treating aged mice with young blood plasma rescues impairments associated with aging. OBJECTIVE Whether blood-borne factors are sufficient to drive impairments outside the dentate gyrus, how they impact neurophysiology, and how the functional outcome compares to impairments found in mouse models for AD is still unclear. METHODS Here, we treated adult mice with blood plasma from aged mice and assessed neurophysiological parameters in the hippocampal CA1. RESULTS Mice treated with aged blood plasma show significantly impaired levels of long-term potentiation (LTP), similar to those present in APP/PS1 mice. These impaired levels of LTP in plasma-treated mice are associated with alterations in basic properties of glutamatergic transmission and the enhanced activity of voltage-gated Ca2 + channels. CONCLUSION Together, the data presented in this study show that blood-borne factors are sufficient to drive neurophysiological impairments in the hippocampal CA1.
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Affiliation(s)
- Christiaan F M Huffels
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Roland E van Dijk
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Henk Karst
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Frank J Meye
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Elly M Hol
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Jinte Middeldorp
- Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands.,Department of Neurobiology & Aging, Biomedical Primate Research Centre, Rijswijk, The Netherlands
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Boada M, López OL, Olazarán J, Núñez L, Pfeffer M, Puente O, Piñol‐Ripoll G, Gámez JE, Anaya F, Kiprov D, Alegret M, Grifols C, Barceló M, Bozzo J, Szczepiorkowski ZM, Páez A. Neuropsychological, neuropsychiatric, and quality-of-life assessments in Alzheimer's disease patients treated with plasma exchange with albumin replacement from the randomized AMBAR study. Alzheimers Dement 2022; 18:1314-1324. [PMID: 34726348 PMCID: PMC9540900 DOI: 10.1002/alz.12477] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/02/2021] [Accepted: 08/11/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION We report the effects of plasma exchange (PE) with albumin replacement on neuropsychological, neuropsychiatric, and quality-of-life (QoL) outcomes in mild-to-moderate Alzheimer's disease (AD) patients in a phase 2b/3 trial (Alzheimer's Management by Albumin Replacement [AMBAR] study). METHODS Three hundred forty-seven patients were randomized into placebo (sham-PE) and three PE-treatment arms with low/high doses of albumin, with/without intravenous immunoglobulin (IVIG). Specific test measurements were performed at baseline; month 2 (weekly conventional PE); months 6, 9, and 12 (monthly low-volume PE [LVPE]); and month 14. RESULTS The PE-treated mild-AD cohort improved their language fluency and processing speed versus placebo at month 14 (effect sizes: >100%; P-values: .03 to .001). The moderate-AD cohort significantly improved short-term verbal memory (effect sizes: 94% to >100%; P-values: .02 to .003). The progression of the neuropsychiatric symptoms of PE-treated was similar to placebo. Mild-AD patients showed improved QoL (P-values: .04 to .008). DISCUSSION PE-treated AD patients showed improvement in memory, language abilities, processing speed, and QoL-AD. No worsening of their psychoaffective status was observed.
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Affiliation(s)
- Mercè Boada
- Research Center and Memory ClinicFundació ACEInstitut Català de Neurociències Aplicades‐Universitat Internacional de CatalunyaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED)Instituto de Salud Carlos IIIMadridSpain
| | - Oscar L. López
- Departments of Neurology and PsychiatryUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Javier Olazarán
- Neurology ServiceHospital General Universitario Gregorio MarañónMadridSpain
- Memory Disorders ClinicHM HospitalesMadridSpain
| | - Laura Núñez
- Alzheimer's Research GroupGrifolsBarcelonaSpain
| | - Michael Pfeffer
- Medical ServicesAllied Biomedical Research Institute, Inc.MiamiFloridaUSA
| | - Orlando Puente
- Center for Prevention of Alzheimer's DiseaseMiami Dade Medical Research InstituteMiamiFloridaUSA
| | - Gerard Piñol‐Ripoll
- Cognitive Disorders UnitClinical Neuroscience ResearchIRB Lleida‐Hospital Universitari Santa MariaLleidaSpain
| | - José E. Gámez
- Psychiatry DepartmentGaliz ResearchHialeahFloridaUSA
| | - Fernando Anaya
- Nephrology ServiceHospital General Universitario Gregorio MarañónMadridSpain
| | - Dobri Kiprov
- Apheresis Care Group and Fresenius Medical CareSan FranciscoCaliforniaUSA
| | - Montserrat Alegret
- Research Center and Memory ClinicFundació ACEInstitut Català de Neurociències Aplicades‐Universitat Internacional de CatalunyaBarcelonaSpain
| | | | | | - Jordi Bozzo
- Alzheimer's Research GroupGrifolsBarcelonaSpain
| | - Zbigniew M. Szczepiorkowski
- Department of Pathology and Laboratory MedicineDartmouth Hitchcock Medical CenterLebanonNew HampshireUSA
- Institute of Hematology and Transfusion MedicineWarsawPoland
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182
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Keren A, Bertolini M, Keren Y, Ullmann Y, Paus R, Gilhar A. Human organ rejuvenation by VEGF-A: Lessons from the skin. SCIENCE ADVANCES 2022; 8:eabm6756. [PMID: 35749494 PMCID: PMC9232104 DOI: 10.1126/sciadv.abm6756] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Transplanting aged human skin onto young SCID/beige mice morphologically rejuvenates the xenotransplants. This is accompanied by angiogenesis, epidermal repigmentation, and substantial improvements in key aging-associated biomarkers, including ß-galactosidase, p16ink4a, SIRT1, PGC1α, collagen 17A, and MMP1. Angiogenesis- and hypoxia-related pathways, namely, vascular endothelial growth factor A (VEGF-A) and HIF1A, are most up-regulated in rejuvenated human skin. This rejuvenation cascade, which can be prevented by VEGF-A-neutralizing antibodies, appears to be initiated by murine VEGF-A, which then up-regulates VEGF-A expression/secretion within aged human skin. While intradermally injected VEGF-loaded nanoparticles suffice to induce a molecular rejuvenation signature in aged human skin on old mice, VEGF-A treatment improves key aging parameters also in isolated, organ-cultured aged human skin, i.e., in the absence of functional skin vasculature, neural, or murine host inputs. This identifies VEGF-A as the first pharmacologically pliable master pathway for human organ rejuvenation in vivo and demonstrates the potential of our humanized mouse model for clinically relevant aging research.
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Affiliation(s)
- Aviad Keren
- Skin Research Laboratory, Rappaport Faculty of Medicine, Technion – Israel Institute of Technology, Haifa, Israel
| | - Marta Bertolini
- Monasterium Laboratory, Skin and Hair Research Solutions GmbH, Münster, Germany
| | - Yaniv Keren
- Division of Orthopedic Surgery, Rambam Health Care Campus, Haifa, Israel
| | - Yehuda Ullmann
- Skin Research Laboratory, Rappaport Faculty of Medicine, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ralf Paus
- Monasterium Laboratory, Skin and Hair Research Solutions GmbH, Münster, Germany
- Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
- CUTANEON–Skin & Hair Innovations, Hamburg, Germany
- Corresponding author. (A.G.); (R.P.)
| | - Amos Gilhar
- Skin Research Laboratory, Rappaport Faculty of Medicine, Technion – Israel Institute of Technology, Haifa, Israel
- Corresponding author. (A.G.); (R.P.)
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183
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Nebie O, Buée L, Blum D, Burnouf T. Can the administration of platelet lysates to the brain help treat neurological disorders? Cell Mol Life Sci 2022; 79:379. [PMID: 35750991 PMCID: PMC9243829 DOI: 10.1007/s00018-022-04397-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/09/2022] [Accepted: 05/23/2022] [Indexed: 11/03/2022]
Abstract
Neurodegenerative disorders of the central nervous system (CNS) and brain traumatic insults are characterized by complex overlapping pathophysiological alterations encompassing neuroinflammation, alterations of synaptic functions, oxidative stress, and progressive neurodegeneration that eventually lead to irreversible motor and cognitive dysfunctions. A single pharmacological approach is unlikely to provide a complementary set of molecular therapeutic actions suitable to resolve these complex pathologies. Recent preclinical data are providing evidence-based scientific rationales to support biotherapies based on administering neurotrophic factors and extracellular vesicles present in the lysates of human platelets collected from healthy donors to the brain. Here, we present the most recent findings on the composition of the platelet proteome that can activate complementary signaling pathways in vivo to trigger neuroprotection, synapse protection, anti-inflammation, antioxidation, and neurorestoration. We also report experimental data where the administration of human platelet lysates (HPL) was safe and resulted in beneficial neuroprotective effects in established rodent models of neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, traumatic brain injury, and stroke. Platelet-based biotherapies, prepared from collected platelet concentrates (PC), are emerging as a novel pragmatic and accessible translational therapeutic strategy for treating neurological diseases. Based on this assumption, we further elaborated on various clinical, manufacturing, and regulatory issues that need to be addressed to ensure the ethical supply, quality, and safety of HPL preparations for treating neurodegenerative and traumatic pathologies of the CNS. HPL made from PC may become a unique approach for scientifically based treatments of neurological disorders readily accessible in low-, middle-, and high-income countries.
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Affiliation(s)
- Ouada Nebie
- College of Biomedical Engineering, Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan
- University of Lille, Inserm, CHU Lille, U1172 - LilNCog - Lille Neuroscience and Cognition, 59045, Lille, France
- Alzheimer and Tauopathies, LabEx DISTALZ, LiCEND, 59000, Lille, France
| | - Luc Buée
- University of Lille, Inserm, CHU Lille, U1172 - LilNCog - Lille Neuroscience and Cognition, 59045, Lille, France
- Alzheimer and Tauopathies, LabEx DISTALZ, LiCEND, 59000, Lille, France
- NeuroTMULille International Laboratory, Univ. Lille, Lille, France
| | - David Blum
- University of Lille, Inserm, CHU Lille, U1172 - LilNCog - Lille Neuroscience and Cognition, 59045, Lille, France.
- Alzheimer and Tauopathies, LabEx DISTALZ, LiCEND, 59000, Lille, France.
- NeuroTMULille International Laboratory, Univ. Lille, Lille, France.
- NeuroTMULille International Laboratory, Taipei Medical University, Taipei, 11031, Taiwan.
| | - Thierry Burnouf
- College of Biomedical Engineering, Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan.
- NeuroTMULille International Laboratory, Taipei Medical University, Taipei, 11031, Taiwan.
- International PhD Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan.
- International PhD Program in Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
- Brain and Consciousness Research Centre, Taipei Medical University Shuang-Ho Hospital, New Taipei City, 23561, Taiwan.
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan.
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184
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Reale A, Tagliatesta S, Zardo G, Zampieri M. Counteracting aged DNA methylation states to combat ageing and age-related diseases. Mech Ageing Dev 2022; 206:111695. [PMID: 35760211 DOI: 10.1016/j.mad.2022.111695] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 06/09/2022] [Accepted: 06/22/2022] [Indexed: 12/18/2022]
Abstract
DNA methylation (DNAm) overwrites information about multiple extrinsic factors on the genome. Age is one of these factors. Age causes characteristic DNAm changes that are thought to be not only major drivers of normal ageing but also precursors to diseases, cancer being one of these. Although there is still much to learn about the relationship between ageing, age-related diseases and DNAm, we now know how to interpret some of the effects caused by age in the form of changes in methylation marks at specific loci. In fact, these changes form the basis of the so called "epigenetic clocks", which translate the genomic methylation profile into an "epigenetic age". Epigenetic age does not only estimate chronological age but can also predict the risk of chronic diseases and mortality. Epigenetic age is believed to be one of the most accurate metrics of biological age. Initial evidence has recently been gathered pointing to the possibility that the rate of epigenetic ageing can be slowed down or even reversed. In this review, we discuss some of the most relevant advances in this field. Expected outcome is that this approach can provide insights into how to preserve health and reduce the impact of ageing diseases in humans.
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Affiliation(s)
- Anna Reale
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy.
| | - Stefano Tagliatesta
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00161 Rome, Italy.
| | - Giuseppe Zardo
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy.
| | - Michele Zampieri
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy.
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185
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Wlodarek L, Alibhai FJ, Wu J, Li SH, Li RK. Stroke-Induced Neurological Dysfunction in Aged Mice Is Attenuated by Preconditioning with Young Sca-1+ Stem Cells. Stem Cells 2022; 40:564-576. [PMID: 35291015 PMCID: PMC9216491 DOI: 10.1093/stmcls/sxac019] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 02/28/2022] [Indexed: 11/13/2022]
Abstract
AIMS To date, stroke remains one of the leading causes of death and disability worldwide. Nearly three-quarters of all strokes occur in the elderly (>65 years old), and a vast majority of these individuals develop debilitating cognitive impairments that can later progress into dementia. Currently, there are no therapies capable of reversing the cognitive complications which arise following a stroke. Instead, current treatment options focus on preventing secondary injuries, as opposed to improving functional recovery. METHODS We reconstituted aged (20-month old) mice with Sca-1+ bone marrow (BM) hematopoietic stem cells isolated from aged or young (2-month old) EGFP+ donor mice. Three months later the chimeric aged mice underwent cerebral ischemia/reperfusion by bilateral common carotid artery occlusion (BCCAO), after which cognitive function was evaluated. Immunohistochemical analysis was performed to evaluate host and recipient cells in the brain following BCCAO. RESULTS Young Sca-1+ cells migrate to the aged brain and give rise to beneficial microglial-like cells that ameliorate stroke-induced loss of cognitive function on tasks targeting the hippocampus and cerebellum. We also found that young Sca-1+ cell-derived microglial-like cells possess neuroprotective properties as they do not undergo microgliosis upon migrating to the ischemic hippocampus, whereas the cells originating from old Sca-1+ cells proliferate extensively and skew toward a pro-inflammatory phenotype following injury. CONCLUSIONS This study provides a proof-of-principle demonstrating that young BM Sca-1+ cells play a pivotal role in reversing stroke-induced cognitive impairments and protect the aged brain against secondary injury by attenuating the host cell response to injury.
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Affiliation(s)
- Lukasz Wlodarek
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.,Faculty of Medicine, Department weof Physiology, University of Toronto, Toronto, ON, Canada
| | - Faisal J Alibhai
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Jun Wu
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Shu-Hong Li
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
| | - Ren-Ke Li
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.,Faculty of Medicine, Department weof Physiology, University of Toronto, Toronto, ON, Canada.,Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
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186
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Schwartz M, Cahalon L. The vicious cycle governing the brain–immune system relationship in neurodegenerative diseases. Curr Opin Immunol 2022; 76:102182. [DOI: 10.1016/j.coi.2022.102182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 12/11/2022]
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187
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Baklaushev VP, Yusubalieva GM, Samoilova EM, Belopasov VV. Resident Neural Stem Cell Niches and Regeneration: The Splendors and Miseries of Adult Neurogenesis. Russ J Dev Biol 2022. [DOI: 10.1134/s1062360422030080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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188
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Bond AM, Ming GL, Song H. What Is the Relationship Between Hippocampal Neurogenesis Across Different Stages of the Lifespan? Front Neurosci 2022; 16:891713. [PMID: 35685774 PMCID: PMC9173723 DOI: 10.3389/fnins.2022.891713] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 04/25/2022] [Indexed: 12/02/2022] Open
Abstract
Hippocampal neurogenesis has typically been studied during embryonic development or in adulthood, promoting the perception of two distinct phenomena. We propose a perspective that hippocampal neurogenesis in the mammalian brain is one continuous, lifelong developmental process. We summarize the common features of hippocampal neurogenesis that are maintained across the lifespan, as well as dynamic age-dependent properties. We highlight that while the progression of hippocampal neurogenesis across the lifespan is conserved between mammalian species, the timing of this progression is species-dependent. Finally, we discuss some current challenges in the hippocampus neurogenesis field, and future research directions to address them, such as time course analysis across the lifespan, mechanisms regulating neurogenesis progression, and interspecies comparisons. We hope that this new perspective of hippocampal neurogenesis will prompt fresh insight into previous research and inspire new directions to advance the field to identify biologically significant ways to harness the endogenous capacity for neurogenesis in the hippocampus.
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Affiliation(s)
- Allison M. Bond
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Guo-li Ming
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States,Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States,Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Hongjun Song
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States,Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States,Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States,The Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States,*Correspondence: Hongjun Song,
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189
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Krzyspiak J, Khodakhah K, Hébert JM. Potential Variables for Improved Reproducibility of Neuronal Cell Grafts at Stroke Sites. Cells 2022; 11:1656. [PMID: 35626693 PMCID: PMC9139220 DOI: 10.3390/cells11101656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/14/2022] [Accepted: 05/16/2022] [Indexed: 01/27/2023] Open
Abstract
Interest is growing in using cell replacements to repair the damage caused by an ischemic stroke. Yet, the usefulness of cell transplants can be limited by the variability observed in their successful engraftment. For example, we recently showed that, although the inclusion of donor-derived vascular cells was necessary for the formation of large grafts (up to 15 mm3) at stroke sites in mice, the size of the grafts overall remained highly variable. Such variability can be due to differences in the cells used for transplantation or the host environment. Here, as possible factors affecting engraftment, we test host sex, host age, the extent of ischemic damage, time of transplant after ischemia, minor differences in donor cell maturity, and cell viability at the time of transplantation. We find that graft size at stroke sites correlates with the size of ischemic damage, host sex (females having graft sizes that correlate with damage), donor cell maturity, and host age, but not with the time of transplant after stroke. A general linear model revealed that graft size is best predicted by stroke severity combined with donor cell maturity. These findings can serve as a guide to improving the reproducibility of cell-based repair therapies.
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Affiliation(s)
- Joanna Krzyspiak
- Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; (J.K.); (K.K.)
- Stem Cell Institute, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Kamran Khodakhah
- Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; (J.K.); (K.K.)
| | - Jean M. Hébert
- Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; (J.K.); (K.K.)
- Stem Cell Institute, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
- Department of Genetics, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
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190
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de Liyis BG, Halim W, Widyadharma IPE. Potential role of recombinant growth differentiation factor 11 in Alzheimer’s disease treatment. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2022. [DOI: 10.1186/s41983-022-00487-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractAlzheimer's disease (AD) is a neurodegenerative disease closely related to the accumulation of beta-amyloid (Aβ) plaques. Growth differentiation factor 11 (GDF11) is one of the proteins that play a role in the aggravation of AD. Decreased concentration of GDF11 disrupts regenerative nervous system, blood vessels, and various vital systems. Low levels of GDF11 with age can be overcome with recombinant GDF11 (rGDF11) to rejuvenate the regenerative effect. Based on research results, rGDF11 enhance the proliferation rate of neuronal precursor cells as well as angiogenesis. rGDF11 can replace lost levels of GDF11, overcome astrogliosis and activation of nerve cell microglia. Therapeutic effect of rGDF11 leads to an improved prognosis in AD patients by neurogenesis and angiogenesis. The prospects of rGDF11 in the treatment of AD have great potential for further research in the future.
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191
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Coleman J. Young brain fluid improves memory in old mice. Nature 2022:10.1038/d41586-022-01282-1. [PMID: 35546626 DOI: 10.1038/d41586-022-01282-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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192
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Comprehensive 16S rRNA and metagenomic data from the gut microbiome of aging and rejuvenation mouse models. Sci Data 2022; 9:197. [PMID: 35538082 PMCID: PMC9091251 DOI: 10.1038/s41597-022-01308-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 04/01/2022] [Indexed: 11/08/2022] Open
Abstract
The gut microbiota is associated with the health and longevity of the host. A few methods, such as fecal microbiota transplantation and oral administration of probiotics, have been applied to alter the gut microbiome and promote healthy aging. The changes in host microbiomes still remain poorly understood. Here, we characterized both the changes in gut microbial communities and their functional potential derived from colon samples in mouse models during aging. We achieved this through four procedures including co-housing, serum injection, parabiosis, and oral administration of Akkermansia muciniphila as probiotics using bacterial 16 S rRNA sequencing and shotgun metagenomic sequencing. The dataset comprised 16 S rRNA sequencing (36,249,200 paired-end reads, 107 sequencing data) and metagenomic sequencing data (307,194,369 paired-end reads, 109 sequencing data), characterizing the taxonomy of bacterial communities and their functional potential during aging and rejuvenation. The generated data expand the resources of the gut microbiome related to aging and rejuvenation and provide a useful dataset for research on developing therapeutic strategies to achieve healthy active aging.
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193
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Shrestha J, Santerre M, Allen CNS, Arjona SP, Merali C, Mukerjee R, Chitrala KN, Park J, Bagashev A, Bui V, Eugenin EA, Merali S, Kaul M, Chin J, Sawaya BE. HIV-1 gp120 Impairs Spatial Memory Through Cyclic AMP Response Element-Binding Protein. Front Aging Neurosci 2022; 14:811481. [PMID: 35615594 PMCID: PMC9124804 DOI: 10.3389/fnagi.2022.811481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/31/2022] [Indexed: 11/13/2022] Open
Abstract
HIV-associated neurocognitive disorders (HAND) remain an unsolved problem that persists despite using antiretroviral therapy. We have obtained data showing that HIV-gp120 protein contributes to neurodegeneration through metabolic reprogramming. This led to decreased ATP levels, lower mitochondrial DNA copy numbers, and loss of mitochondria cristae, all-important for mitochondrial biogenesis. gp120 protein also disrupted mitochondrial movement and synaptic plasticity. Searching for the mechanisms involved, we found that gp120 alters the cyclic AMP response element-binding protein (CREB) phosphorylation on serine residue 133 necessary for its function as a transcription factor. Since CREB regulates the promoters of PGC1α and BDNF genes, we found that CREB dephosphorylation causes PGC1α and BDNF loss of functions. The data was validated in vitro and in vivo. The negative effect of gp120 was alleviated in cells and animals in the presence of rolipram, an inhibitor of phosphodiesterase protein 4 (PDE4), restoring CREB phosphorylation. We concluded that HIV-gp120 protein contributes to HAND via inhibition of CREB protein function.
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Affiliation(s)
- Jenny Shrestha
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
- Fels Cancer Institute for Personalized Medicine Institute, Philadelphia, PA, United States
| | - Maryline Santerre
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
- Fels Cancer Institute for Personalized Medicine Institute, Philadelphia, PA, United States
| | - Charles N. S. Allen
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
- Fels Cancer Institute for Personalized Medicine Institute, Philadelphia, PA, United States
| | - Sterling P. Arjona
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
- Fels Cancer Institute for Personalized Medicine Institute, Philadelphia, PA, United States
| | - Carmen Merali
- Department of Pharmaceutical Sciences, School of Pharmacy, Temple University, Philadelphia, PA, United States
| | - Ruma Mukerjee
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
- Fels Cancer Institute for Personalized Medicine Institute, Philadelphia, PA, United States
| | | | - Jin Park
- Memory and Brain Research Center, Department of Neuroscience, Baylor College of Medicine, Houston, TX, United States
| | - Asen Bagashev
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
| | - Viet Bui
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
- Fels Cancer Institute for Personalized Medicine Institute, Philadelphia, PA, United States
| | - Eliseo A. Eugenin
- Department of Neuroscience, Cell Biology, and Anatomy, The University of Texas Medical Branch, Galveston, TX, United States
| | - Salim Merali
- Department of Pharmaceutical Sciences, School of Pharmacy, Temple University, Philadelphia, PA, United States
| | - Marcus Kaul
- Infectious and Inflammatory Disease Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
- Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Jeannie Chin
- Memory and Brain Research Center, Department of Neuroscience, Baylor College of Medicine, Houston, TX, United States
| | - Bassel E. Sawaya
- Molecular Studies of Neurodegenerative Diseases Lab, Philadelphia, PA, United States
- Fels Cancer Institute for Personalized Medicine Institute, Philadelphia, PA, United States
- Department of Neurology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
- Department of Cancer and Cell Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
- Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
- *Correspondence: Bassel E. Sawaya,
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194
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Solary E, Abou-Zeid N, Calvo F. Ageing and cancer: a research gap to fill. Mol Oncol 2022; 16:3220-3237. [PMID: 35503718 PMCID: PMC9490141 DOI: 10.1002/1878-0261.13222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/01/2022] [Accepted: 05/02/2022] [Indexed: 12/03/2022] Open
Abstract
The complex mechanisms of ageing biology are increasingly understood. Interventions to reduce or delay ageing‐associated diseases are emerging. Cancer is one of the diseases promoted by tissue ageing. A clockwise mutational signature is identified in many tumours. Ageing might be a modifiable cancer risk factor. To reduce the incidence of ageing‐related cancer and to detect the disease at earlier stages, we need to understand better the links between ageing and tumours. When a cancer is established, geriatric assessment and measures of biological age might help to generate evidence‐based therapeutic recommendations. In this approach, patients and caregivers would include the respective weight to give to the quality of life and survival in the therapeutic choices. The increasing burden of cancer in older patients requires new generations of researchers and geriatric oncologists to be trained, to properly address disease complexity in a multidisciplinary manner, and to reduce health inequities in this population of patients. In this review, we propose a series of research challenges to tackle in the next few years to better prevent, detect and treat cancer in older patients while preserving their quality of life.
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Affiliation(s)
- Eric Solary
- Fondation « Association pour la Recherche sur le Cancer », Villejuif, France.,Université Paris Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France.,Gustave Roussy Cancer Center, INSERM U1287, Villejuif, France
| | - Nancy Abou-Zeid
- Fondation « Association pour la Recherche sur le Cancer », Villejuif, France
| | - Fabien Calvo
- Fondation « Association pour la Recherche sur le Cancer », Villejuif, France.,Université de Paris, Paris, France
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195
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Wang H, Gavil NV, Koewler N, Masopust D, Jameson SC. Parabiosis in Mice to Study Tissue Residency of Immune Cells. Curr Protoc 2022; 2:e446. [PMID: 35612420 PMCID: PMC9216177 DOI: 10.1002/cpz1.446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Different populations of immune cells rely on their distinct migration patterns for immunosurveillance, immune regulation, tissue specific differentiation, and maturation. It is often important to clarify whether cells are recirculating or tissue resident, or whether tissue-specific cells are derived from blood-borne precursors or a tissue-resident population. Though migration or tissue residency of immune cells critically depends on the expression of different homing molecules (chemokine receptors, tissue retention molecules, etc.), characterization based solely on the expression of homing molecules may not faithfully reflect the migration patterns of immune cells. Therefore, a more reliable method to clarify migration patterns of immune cells is required. Parabiosis is a surgical connection of two mice resulting in a shared circulatory system, which allows reliable distinction of tissue-resident and circulating cells. Here, we describe a set of protocols for parabiosis, including technique details, pitfalls, and suggestions for optimization and troubleshooting. © 2022 Wiley Periodicals LLC. Basic Protocol 1: Preparation of mice for parabiosis surgery Basic Protocol 2: Parabiosis surgery Basic Protocol 3: Recovery and use of mice after parabiosis surgery Basic Protocol 4: Reversal of parabiotic surgery Basic Protocol 5: Analysis of parabionts.
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Affiliation(s)
- Haiguang Wang
- Center for Immunology, University of Minnesota Medical School, Minneapolis MN 55455
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis MN 55455
| | - Noah Veis Gavil
- Center for Immunology, University of Minnesota Medical School, Minneapolis MN 55455
- Department of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis MN 55455
| | - Nathan Koewler
- Research Animal Resources, University of Minnesota Medical School, Minneapolis MN 55455
| | - David Masopust
- Center for Immunology, University of Minnesota Medical School, Minneapolis MN 55455
- Department of Microbiology and Immunology, University of Minnesota Medical School, Minneapolis MN 55455
| | - Stephen C. Jameson
- Center for Immunology, University of Minnesota Medical School, Minneapolis MN 55455
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis MN 55455
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196
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Willis CM, Nicaise AM, Krzak G, Ionescu RB, Pappa V, D'Angelo A, Agarwal R, Repollés-de-Dalmau M, Peruzzotti-Jametti L, Pluchino S. Soluble factors influencing the neural stem cell niche in brain physiology, inflammation, and aging. Exp Neurol 2022; 355:114124. [DOI: 10.1016/j.expneurol.2022.114124] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 05/16/2022] [Accepted: 05/21/2022] [Indexed: 11/27/2022]
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197
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Iram T, Kern F, Kaur A, Myneni S, Morningstar AR, Shin H, Garcia MA, Yerra L, Palovics R, Yang AC, Hahn O, Lu N, Shuken SR, Haney MS, Lehallier B, Iyer M, Luo J, Zetterberg H, Keller A, Zuchero JB, Wyss-Coray T. Young CSF restores oligodendrogenesis and memory in aged mice via Fgf17. Nature 2022; 605:509-515. [PMID: 35545674 PMCID: PMC9377328 DOI: 10.1038/s41586-022-04722-0] [Citation(s) in RCA: 98] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 04/04/2022] [Indexed: 12/15/2022]
Abstract
Recent understanding of how the systemic environment shapes the brain throughout life has led to numerous intervention strategies to slow brain ageing1-3. Cerebrospinal fluid (CSF) makes up the immediate environment of brain cells, providing them with nourishing compounds4,5. We discovered that infusing young CSF directly into aged brains improves memory function. Unbiased transcriptome analysis of the hippocampus identified oligodendrocytes to be most responsive to this rejuvenated CSF environment. We further showed that young CSF boosts oligodendrocyte progenitor cell (OPC) proliferation and differentiation in the aged hippocampus and in primary OPC cultures. Using SLAMseq to metabolically label nascent mRNA, we identified serum response factor (SRF), a transcription factor that drives actin cytoskeleton rearrangement, as a mediator of OPC proliferation following exposure to young CSF. With age, SRF expression decreases in hippocampal OPCs, and the pathway is induced by acute injection with young CSF. We screened for potential SRF activators in CSF and found that fibroblast growth factor 17 (Fgf17) infusion is sufficient to induce OPC proliferation and long-term memory consolidation in aged mice while Fgf17 blockade impairs cognition in young mice. These findings demonstrate the rejuvenating power of young CSF and identify Fgf17 as a key target to restore oligodendrocyte function in the ageing brain.
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Affiliation(s)
- Tal Iram
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA,Correspondence to or
| | - Fabian Kern
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany.,Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), Saarland University Campus E8.1, Saarbrücken, Germany
| | - Achint Kaur
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Saket Myneni
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Allison R. Morningstar
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Heather Shin
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Miguel A. Garcia
- Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, CA 94305, USA
| | - Lakshmi Yerra
- Palo Alto Veterans Institute for Research, Palo Alto, CA 94304
| | - Robert Palovics
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Andrew C. Yang
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Oliver Hahn
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Nannan Lu
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Steven R. Shuken
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA,Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Michael s. Haney
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Benoit Lehallier
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Manasi Iyer
- Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, CA 94305, USA
| | - Jian Luo
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Palo Alto Veterans Institute for Research, Palo Alto, CA 94304
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, UK; UK Dementia Research Institute at UCL, London, UK
| | - Andreas Keller
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany.,Center for Bioinformatics, Saarland Informatics Campus, 66123 Saarbrücken, Germany
| | - J. Bradley Zuchero
- Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, CA 94305, USA
| | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA.,Wu Tsai Neurosciences Institute, Stanford University School of Medicine, Stanford, California, USA,Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, California, USA.,Correspondence to or
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198
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Aging and “rejuvenation” of resident stem cells — a new way to active longevity? КЛИНИЧЕСКАЯ ПРАКТИКА 2022. [DOI: 10.17816/clinpract104999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
This review presents the current data on the methodology for assessing the biological and epigenetic age, describes the concept of the epigenetic clock, and characterizes the main types of resident stem cells and the specifics of their aging. It has been shown that age-related changes in organs and tissues, as well as age-related diseases, are largely due to the aging of resident stem cells. The latter represent an attractive target for cell rejuvenation, as they can be isolated, cultured ex vivo, modified, and re-introduced into the resident niches. Two main methodologies for the cellular rejuvenation are presented: genetic reprogramming with zeroing the age of a cell using transient expression of transcription factors, and various approaches to epigenetic rejuvenation. The close relationship between aging, regeneration, and oncogenesis, and between these factors and the functioning of resident stem cell niches requires further precision studies, which, we are sure, can result in the creation of an effective anti-aging strategy and prolongation of human active life.
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199
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Yousefzadeh MJ, Robbins PD, Huffman DM. Heterochronic parabiosis: a valuable tool to investigate cellular senescence and other hallmarks of aging. Aging (Albany NY) 2022; 14:3325-3328. [PMID: 35417855 PMCID: PMC9037264 DOI: 10.18632/aging.204015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/02/2022] [Indexed: 11/26/2022]
Abstract
Parabiosis is a well-established method to facilitate a shared blood supply between two conjoined animals. In particular, the pairing of mice of dissimilar ages, termed heterochronic parabiosis, has been used extensively for differentiating cell autonomous and non-autonomous mechanisms of aging. Analysis of heterochronic parabionts also has helped to identify individual circulating factors that may act as either pro- or anti-geronics. Heterochronic parabiosis also has proven to be a valuable experimental system to evaluate the effects of specific hallmarks of aging on the process of aging. For example, heterochronic parabiosis was used recently to examine whether cellular senescence was driven via cell autonomous and/or non-autonomous mechanisms. As anticipated, markers of cellular senescence were elevated in old isochronically-paired mice relative to young controls. However, compared to old isochronically paired mice, the senescent cell burden was reduced in multiple tissues of old parabionts joined with young mice. This suggests that the rejuvenation of cells and tissues in old mice by exposure to young blood could be mediated, in part, through suppression or immune clearance of senescent cells. Conversely, young heterochronic parabionts showed increased markers of cellular senescence, demonstrating that exposure to an old circulation is able to drive senescence through a cell non-autonomous mechanism(s), likely contributing to accelerated aging in the young mice. Thus, heterochronic parabiosis is still an important methodology that should continue to be leveraged for evaluating other hallmarks of aging and their mechanisms.
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Affiliation(s)
- Matthew J Yousefzadeh
- Institute on the Biology of Aging and Metabolism and Department of Biochemistry, Molecular Biology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Paul D Robbins
- Institute on the Biology of Aging and Metabolism and Department of Biochemistry, Molecular Biology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Derek M Huffman
- Departments of Molecular Pharmacology and Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA.,Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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200
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Kiss T, Nyúl-Tóth Á, Gulej R, Tarantini S, Csipo T, Mukli P, Ungvari A, Balasubramanian P, Yabluchanskiy A, Benyo Z, Conley SM, Wren JD, Garman L, Huffman DM, Csiszar A, Ungvari Z. Old blood from heterochronic parabionts accelerates vascular aging in young mice: transcriptomic signature of pathologic smooth muscle remodeling. GeroScience 2022; 44:953-981. [PMID: 35124764 PMCID: PMC9135944 DOI: 10.1007/s11357-022-00519-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/16/2022] [Indexed: 02/07/2023] Open
Abstract
Vascular aging has a central role in the pathogenesis of cardiovascular diseases contributing to increased mortality of older adults. There is increasing evidence that, in addition to the documented role of cell-autonomous mechanisms of aging, cell-nonautonomous mechanisms also play a critical role in the regulation of vascular aging processes. Our recent transcriptomic studies (Kiss T. et al. Geroscience. 2020;42(2):727-748) demonstrated that circulating anti-geronic factors from young blood promote vascular rejuvenation in aged mice. The present study was designed to expand upon the results of this study by testing the hypothesis that circulating pro-geronic factors also contribute to the genesis of vascular aging phenotypes. To test this hypothesis, through heterochronic parabiosis, we determined the extent to which shifts in the vascular transcriptome (RNA-seq) are modulated by the old systemic environment. We reanalyzed existing RNA-seq data, comparing the transcriptome in the aorta arch samples isolated from isochronic parabiont aged (20-month-old) C57BL/6 mice [A-(A); parabiosis for 8 weeks] and young isochronic parabiont (6-month-old) mice [Y-(Y)] and also assessing transcriptomic changes in the aortic arch in young (6-month-old) parabiont mice [Y-(A); heterochronic parabiosis for 8 weeks] induced by the presence of old blood derived from aged (20-month-old) parabionts. We identified 528 concordant genes whose expression levels differed in the aged phenotype and were shifted towards the aged phenotype by the presence of old blood in young Y-(A) animals. Among them, the expression of 221 concordant genes was unaffected by the presence of young blood in A-(Y) mice. GO enrichment analysis suggests that old blood-regulated genes may contribute to pathologic vascular remodeling. IPA Upstream Regulator analysis (performed to identify upstream transcriptional regulators that may contribute to the observed transcriptomic changes) suggests that the mechanism of action of pro-geronic factors present in old blood may include inhibition of pathways mediated by SRF (serum response factor), insulin-like growth factor-1 (IGF-1) and VEGF-A. In conclusion, relatively short-term exposure to old blood can accelerate vascular aging processes. Our findings provide additional evidence supporting the significant plasticity of vascular aging and the existence of circulating pro-geronic factors mediating pathological remodeling of the vascular smooth muscle cells and the extracellular matrix.
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Affiliation(s)
- Tamas Kiss
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- International Training Program in Geroscience, First Department of Pediatrics, Semmelweis University, Budapest, Hungary
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Ádám Nyúl-Tóth
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- International Training Program in Geroscience, Institute of Biophysics, Biological Research Centre, Eötvös Loránd Research Network (ELKH), Szeged, Hungary
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Rafal Gulej
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Stefano Tarantini
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
- Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- The Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 USA
| | - Tamas Csipo
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
| | - Peter Mukli
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Anna Ungvari
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Priya Balasubramanian
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Andriy Yabluchanskiy
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Zoltan Benyo
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Shannon M. Conley
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Jonathan D. Wren
- Oklahoma Medical Research Foundation, Genes & Human Disease Research Program, Oklahoma City, OK USA
| | - Lori Garman
- Oklahoma Medical Research Foundation, Genes & Human Disease Research Program, Oklahoma City, OK USA
| | - Derek M. Huffman
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461 USA
- Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY USA
| | - Anna Csiszar
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Translational Medicine, Semmelweis University, Budapest, Hungary
- The Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 USA
- International Training Program in Geroscience, Theoretical Medicine Doctoral School, University of Szeged, Szeged, Hungary
| | - Zoltan Ungvari
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Department of Public Health, Semmelweis University, Budapest, Hungary
- Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- The Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 USA
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