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Acosta-Galeana I, Hernández-Martínez R, Reyes-Cruz T, Chiquete E, Aceves-Buendia JDJ. RNA-binding proteins as a common ground for neurodegeneration and inflammation in amyotrophic lateral sclerosis and multiple sclerosis. Front Mol Neurosci 2023; 16:1193636. [PMID: 37475885 PMCID: PMC10355071 DOI: 10.3389/fnmol.2023.1193636] [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: 03/25/2023] [Accepted: 06/14/2023] [Indexed: 07/22/2023] Open
Abstract
The neurodegenerative and inflammatory illnesses of amyotrophic lateral sclerosis and multiple sclerosis were once thought to be completely distinct entities that did not share any remarkable features, but new research is beginning to reveal more information about their similarities and differences. Here, we review some of the pathophysiological features of both diseases and their experimental models: RNA-binding proteins, energy balance, protein transportation, and protein degradation at the molecular level. We make a thorough analysis on TDP-43 and hnRNP A1 dysfunction, as a possible common ground in both pathologies, establishing a potential link between neurodegeneration and pathological immunity. Furthermore, we highlight the putative variations that diverge from a common ground in an atemporal course that proposes three phases for all relevant molecular events.
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Affiliation(s)
| | | | - Tania Reyes-Cruz
- Laboratorio de Biología Molecular, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Mexico City, Mexico
| | - Erwin Chiquete
- Departamento de Neurología y Psiquiatría, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Jose de Jesus Aceves-Buendia
- Departamento de Neurología y Psiquiatría, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
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Cao MC, Cawston EE, Chen G, Brooks C, Douwes J, McLean D, Graham ES, Dragunow M, Scotter EL. Serum biomarkers of neuroinflammation and blood-brain barrier leakage in amyotrophic lateral sclerosis. BMC Neurol 2022; 22:216. [PMID: 35690735 PMCID: PMC9188104 DOI: 10.1186/s12883-022-02730-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 03/07/2022] [Indexed: 11/10/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is an incurable and rapidly progressive neurological disorder. Biomarkers are critical to understanding disease causation, monitoring disease progression and assessing the efficacy of treatments. However, robust peripheral biomarkers are yet to be identified. Neuroinflammation and breakdown of the blood-brain barrier (BBB) are common to familial and sporadic ALS and may produce a unique biomarker signature in peripheral blood. Using cytometric bead array (n = 15 participants per group (ALS or control)) and proteome profiling (n = 6 participants per group (ALS or control)), we assessed a total of 106 serum cytokines, growth factors, and BBB breakdown markers in the serum of control and ALS participants. Further, primary human brain pericytes, which maintain the BBB, were used as a biosensor of inflammation following pre-treatment with ALS serum. Principal components analysis of all proteome profile data showed no clustering of control or ALS sera, and no individual serum proteins met the threshold for statistical difference between ALS and controls (adjusted P values). However, the 20 most changed proteins between control and ALS sera showed a medium effect size (Cohen’s d = 0.67) and cluster analysis of their levels together identified three sample subsets; control-only, mixed control-ALS, and ALS-only. These 20 proteins were predominantly pro-angiogenic and growth factors, including fractalkine, BDNF, EGF, PDGF, Dkk-1, MIF and angiopoietin-2. S100β, a protein highly concentrated in glial cells and therefore a marker of BBB leakage when found in blood, was unchanged in ALS serum, suggesting that serum protein profiles were reflective of peripheral rather than CNS biofluids. Finally, primary human brain pericytes remained proliferative and their secretome was unchanged by chronic exposure to ALS serum. Our exploratory study suggests that individual serum cytokine levels may not be robust biomarkers in small studies of ALS, but that larger studies using multiplexed analysis of pro-angiogenic and growth factors may identify a peripheral signature of ALS pathogenesis.
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Affiliation(s)
- Maize C Cao
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, 85 Park Road, Auckland, 1023, New Zealand.,Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Erin E Cawston
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, 85 Park Road, Auckland, 1023, New Zealand.,Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Grace Chen
- Centre for Public Health Research, Massey University, PO Box 75, Wellington, 6140, New Zealand
| | - Collin Brooks
- Centre for Public Health Research, Massey University, PO Box 75, Wellington, 6140, New Zealand
| | - Jeroen Douwes
- Centre for Public Health Research, Massey University, PO Box 75, Wellington, 6140, New Zealand
| | - Dave McLean
- Centre for Public Health Research, Massey University, PO Box 75, Wellington, 6140, New Zealand
| | - E Scott Graham
- Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Department of Molecular Medicine and Pathology, University of Auckland, 85 Park Road, Auckland, 1023, New Zealand
| | - Mike Dragunow
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, 85 Park Road, Auckland, 1023, New Zealand. .,Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
| | - Emma L Scotter
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, 85 Park Road, Auckland, 1023, New Zealand. .,Centre for Brain Research, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
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McCombe PA, Lee JD, Woodruff TM, Henderson RD. The Peripheral Immune System and Amyotrophic Lateral Sclerosis. Front Neurol 2020; 11:279. [PMID: 32373052 PMCID: PMC7186478 DOI: 10.3389/fneur.2020.00279] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 03/25/2020] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a severe neurodegenerative disease that is defined by loss of upper and lower motor neurons, associated with accumulation of protein aggregates in cells. There is also pathology in extra-motor areas of the brain, Possible causes of cell death include failure to deal with the aggregated proteins, glutamate toxicity and mitochondrial failure. ALS also involves abnormalities of metabolism and the immune system, including neuroinflammation in the brain and spinal cord. Strikingly, there are also abnormalities of the peripheral immune system, with alterations of T lymphocytes, monocytes, complement and cytokines in the peripheral blood of patients with ALS. The precise contribution of the peripheral immune system in ALS pathogenesis is an active area of research. Although some trials of immunomodulatory agents have been negative, there is strong preclinical evidence of benefit from immune modulation and further trials are currently underway. Here, we review the emerging evidence implicating peripheral immune alterations contributing to ALS, and their potential as future therapeutic targets for clinical intervention.
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Affiliation(s)
- Pamela A. McCombe
- Centre for Clinical Research, The University of Queensland, Brisbane, QLD, Australia
- Wesley Medical Research, The Wesley Hospital, Brisbane, QLD, Australia
| | - John D. Lee
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Trent M. Woodruff
- Wesley Medical Research, The Wesley Hospital, Brisbane, QLD, Australia
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
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Jha NK, Jha SK, Sharma R, Kumar D, Ambasta RK, Kumar P. Hypoxia-Induced Signaling Activation in Neurodegenerative Diseases: Targets for New Therapeutic Strategies. J Alzheimers Dis 2018; 62:15-38. [DOI: 10.3233/jad-170589] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Niraj Kumar Jha
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly DCE), Delhi, India
| | - Saurabh Kumar Jha
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly DCE), Delhi, India
| | - Renu Sharma
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly DCE), Delhi, India
| | - Dhiraj Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly DCE), Delhi, India
| | - Rashmi K. Ambasta
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly DCE), Delhi, India
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly DCE), Delhi, India
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Baille G, De Jesus AM, Perez T, Devos D, Dujardin K, Charley CM, Defebvre L, Moreau C. Ventilatory Dysfunction in Parkinson's Disease. JOURNAL OF PARKINSONS DISEASE 2017; 6:463-71. [PMID: 27314755 PMCID: PMC5008229 DOI: 10.3233/jpd-160804] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In contrast to some other neurodegenerative diseases, little is known about ventilatory dysfunction in Parkinson’s disease (PD). To assess the spectrum of ventilation disorders in PD, we searched for and reviewed studies of dyspnea, lung volumes, respiratory muscle function, sleep breathing disorders and the response to hypoxemia in PD. Among the studies, we identified some limitations: (i) small study populations (mainly composed of patients with advanced PD), (ii) the absence of long-term follow-up and (iii) the absence of functional evaluations under “off-drug” conditions. Although there are many reports of abnormal spirometry data in PD (mainly related to impairment of the inspiratory muscles), little is known about hypoventilation in PD. We conclude that ventilatory dysfunction in PD has been poorly studied and little is known about its frequency and clinical relevance. Hence, there is a need to characterize the different phenotypes of ventilation disorders in PD, study their relationships with disease progression and assess their prognostic value.
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Affiliation(s)
- Guillaume Baille
- Service de Neurologie et Pathologie du Mouvement, Pôle de neurosciences et appareil locomoteur, CHRU de Lille, Lille, France / INSERM UMR 1171, LILLE France, Troubles cognitifs dégénératifs et vasculaires, Lille, France
| | - Anna Maria De Jesus
- Service d'Explorations Fonctionnelles Respiratoires, Hôpital Albert Calmette, CHRU de Lille, Lille, France
| | - Thierry Perez
- Service d'Explorations Fonctionnelles Respiratoires, Hôpital Albert Calmette, CHRU de Lille, Lille, France
| | - David Devos
- Service de Pharmacologie Médicale, Université de Lille, CHRU de Lille, France / INSERM UMR 1171, Lille, France
| | - Kathy Dujardin
- Service de Neurologie et Pathologie du Mouvement, Pôle de neurosciences et appareil locomoteur, CHRU de Lille, Lille, France / INSERM UMR 1171, LILLE France, Troubles cognitifs dégénératifs et vasculaires, Lille, France
| | | | - Luc Defebvre
- Service de Neurologie et Pathologie du Mouvement, Pôle de neurosciences et appareil locomoteur, CHRU de Lille, Lille, France / INSERM UMR 1171, LILLE France, Troubles cognitifs dégénératifs et vasculaires, Lille, France
| | - Caroline Moreau
- Service de Neurologie et Pathologie du Mouvement, Pôle de neurosciences et appareil locomoteur, CHRU de Lille, Lille, France / INSERM UMR 1171, LILLE France, Troubles cognitifs dégénératifs et vasculaires, Lille, France
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García-Escudero V, Rosales M, Muñoz JL, Scola E, Medina J, Khalique H, Garaulet G, Rodriguez A, Lim F. Patient-derived olfactory mucosa for study of the non-neuronal contribution to amyotrophic lateral sclerosis pathology. J Cell Mol Med 2015; 19:1284-95. [PMID: 25807871 PMCID: PMC4459844 DOI: 10.1111/jcmm.12488] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 10/10/2014] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a degenerative motor neuron disease which currently has no cure. Research using rodent ALS models transgenic for mutant superoxide dismutase 1 (SOD1) has implicated that glial–neuronal interactions play a major role in the destruction of motor neurons, but the generality of this mechanism is not clear as SOD1 mutations only account for less than 2% of all ALS cases. Recently, this hypothesis was backed up by observation of similar effects using astrocytes derived from post-mortem spinal cord tissue of ALS patients which did not carry SOD1 mutations. However, such necropsy samples may not be easy to obtain and may not always yield viable cell cultures. Here, we have analysed olfactory mucosa (OM) cells, which can be easily isolated from living ALS patients. Disease-specific changes observed when ALS OM cells were co-cultured with human spinal cord neurons included decreased neuronal viability, aberrant neuronal morphology and altered glial inflammatory responses. Our results show the potential of OM cells as new cell models for ALS.
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Affiliation(s)
- Vega García-Escudero
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Biología Molecular "Severo Ochoa" (C.S.I.C.- U.A.M.), Universidad Autónoma de Madrid, Madrid, Spain
| | - María Rosales
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain
| | - José Luis Muñoz
- Departamento de Neurología, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Esteban Scola
- Departamento de Otorrinolaringología, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Javier Medina
- Departamento de Otorrinolaringología, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Hena Khalique
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain
| | - Guillermo Garaulet
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain
| | - Antonio Rodriguez
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain
| | - Filip Lim
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain
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Advances in cellular models to explore the pathophysiology of amyotrophic lateral sclerosis. Mol Neurobiol 2013; 49:966-83. [PMID: 24198229 DOI: 10.1007/s12035-013-8573-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Accepted: 10/15/2013] [Indexed: 12/11/2022]
Abstract
Amyotrophic lateral sclerosis (ALS), the most common adult-onset motor neuron disorder, is fatal for most patients less than 3 years from when the first symptoms appear. The aetiologies for sporadic and most familial forms of ALS are unknown, but genetic factors are increasingly recognized as causal in a subset of patients. Studies of disease physiology suggest roles for oxidative stress, glutamate-mediated excitotoxicity or protein aggregation; how these pathways interact in the complex pathophysiology of ALS awaits elucidation. Cellular models are being used to examine disease mechanisms. Recent advances include the availability of expanded cell types, from neuronal or glial cell culture to motoneuron-astrocyte co-culture genetically or environmentally modified. Cell culture experiments confirmed the central role of glial cells in ALS. The recent adaptation of induced pluripotent stem cells (iPSC) for ALS modeling could allow a broader perspective and is expected to generate new hypotheses, related particularly to mechanisms underlying genetic factors. Cellular models have provided meaningful advances in the understanding of ALS, but, to date, complete characterization of in vitro models is only partially described. Consensus on methodological approaches, strategies for validation and techniques that allow rapid adaptation to new genetic or environmental influences is needed. In this article, we review the principal cellular models being employed in ALS and highlight their contribution to the understanding of disease mechanisms. We conclude with recommendations on means to enhance the robustness and generalizability of the different concepts for experimental ALS.
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Spinal vascular endothelial growth factor induces phrenic motor facilitation via extracellular signal-regulated kinase and Akt signaling. J Neurosci 2011; 31:7682-90. [PMID: 21613481 DOI: 10.1523/jneurosci.0239-11.2011] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Although vascular endothelial growth factor (VEGFA-165) is primarily known for its role in angiogenesis, it also plays important neurotrophic and neuroprotective roles for spinal motor neurons. VEGFA-165 signals by activating its receptor tyrosine kinase VEGF receptor-2 (VEGFR-2). Because another growth/trophic factor that signals via a receptor tyrosine kinase (brain derived neurotrophic factor) elicits a long-lasting facilitation of respiratory motor activity in the phrenic nerve, we tested the hypothesis that VEGFA-165 elicits similar phrenic motor facilitation (pMF). Using immunohistochemistry and retrograde labeling techniques, we demonstrate that VEGFA-165 and VEGFR-2 are expressed in identified phrenic motor neurons. Furthermore, intrathecal VEGFA-165 administration at C4 elicits long-lasting pMF; intraspinal VEGFA-165 increased integrated phrenic nerve burst amplitude for at least 90 min after injection (53.1 ± 5.0% at 90 min; p < 0.001). Intrathecal VEGFA-165 increased phosphorylation (and presumed activation) of signaling molecules downstream from VEGFR-2 within the phrenic motor nucleus, including ERK (1.53 ± 0.13 vs 1.0 ± 0.05 arbitrary units in control rats; p < 0.05) and Akt (2.16 ± 0.41 vs 1.0 ± 0.41 arbitrary units in control rats; p < 0.05). VEGF-induced pMF was attenuated by the MEK/ERK inhibitor U0126 [1,4-diamino-2,3-dicyano-1,4-bis(o-aminophenylmercapto)butadiene] and was abolished by the phosphotidinositol 3 kinase/Akt inhibitor LY294002 [2-(4-morpholinyl)-8-phenyl-1(4H)-benzopyran-4-one hydrochloride], demonstrating that ERK mitogen-activated protein kinases and Akt are both required for full expression of VEGF-induced pMF. This is the first report that VEGFA-165 elicits plasticity in any motor system. Furthermore, because VEGFA-165 expression is hypoxia sensitive, it may play a role in respiratory plasticity after prolonged exposures to low oxygen.
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Deregulation of the hypoxia inducible factor-1α pathway in monocytes from sporadic amyotrophic lateral sclerosis patients. Neuroscience 2010; 172:110-7. [PMID: 20977930 DOI: 10.1016/j.neuroscience.2010.10.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 10/15/2010] [Accepted: 10/16/2010] [Indexed: 01/08/2023]
Abstract
The clinical course of the degenerative motor neuron disorder amyotrophic lateral sclerosis (ALS) is closely related to hypoxia. The normal response to hypoxia involves two pathways in particular: the hypoxia inducible factor 1α (HIF-1α) pathway (which notably controls the synthesis of vascular endothelial growth factor (VEGF)) and the nuclear factor kappa B (NF-κb) pathway (responsible for the production of inflammatory mediators, including prostaglandin E2 (PGE2)). Defects in VEGF gene expression are known to cause motor neuron degeneration in animal models. Circulating monocytes are precursors of the microglia, which are involved in the pathogenesis of ALS. To establish whether the HIF-1 and/or NF-κB pathways are deregulated during hypoxia in early-stage, sporadic ALS, we analyzed the response to acute (1 h) and prolonged (24 h) hypoxia in monocytes from ALS and healthy controls. We measured protein expression and mRNA transcription for VEGF, HIF-1, HIF-2, prolyl hydroxylases 1 and 2 (PHD-1 and -2, part of the HIF proteasome-dependent degradation pathway) and their modulation by PGE2. Our results showed that (i) the HIF-1 (but not HIF-2) and VEGF production induced by acute and prolonged hypoxia was selectively and markedly altered in ALS patients and (ii) this defect was not compensated for by PGE2 addition. Moreover, altered HIF-1α activation was associated with low levels of proteolysis by PHD-2 in cells from sporadic ALS patients (relative to controls). For the first time, we have demonstrated clinical and functional abnormalities in the HIF-1 pathway during hypoxia in monocytes from sporadic ALS patients.
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