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Dalakas MC. Autoimmune Peripheral Neuropathies. Clin Immunol 2023. [DOI: 10.1016/b978-0-7020-8165-1.00067-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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Guillain-Barré-like syndrome: an uncommon feature of CASPR2 and LGI1 autoimmunity. J Neurol 2022; 269:5893-5900. [PMID: 35781606 DOI: 10.1007/s00415-022-11248-y] [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: 04/06/2022] [Revised: 06/08/2022] [Accepted: 06/20/2022] [Indexed: 10/17/2022]
Abstract
Contactin-associated protein-like 2 (CASPR2) and leucine-rich glioma-inactivated 1 (LGI1) are essential components of the voltage-gated Kv1 potassium channel complex and are extensively expressed in both central and peripheral nervous system. Autoimmune CASPR2 and LGI1 disorders commonly present with Morvan syndrome (Mos) and/or limbic encephalitis, but whether Guillain-Barré syndrome (GBS) is a specific clinical phenotype is unknown. Here, we first reported an adult patient with dual CASPR2 and LGI1 antibodies in both serum and cerebrospinal fluid, who initially presented with a GBS-like syndrome and developed a typical MoS and respiratory paralysis, with a rapid resolution of his neurological symptoms and disappearance of autoantibodies after treatment with plasma exchange. Additionally, we also provided an overview of the previously reported GBS cases associated with CASPR2 or LGI1 antibodies. These cases expand the phenotypic spectrum of CASPR2 and LGI1 autoimmune syndromes, implying that these two antigens, especially CASPR2, are likely to participate in the etiology of GBS as a potential new target antigen, which deserves further exploration.
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El-Abassi RN, Soliman M, Levy MH, England JD. Treatment and Management of Autoimmune Neuropathies. Neuromuscul Disord 2022. [DOI: 10.1016/b978-0-323-71317-7.00015-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Mechanisms of Nerve Damage in Neuropathies Associated with Hematological Diseases: Lesson from Nerve Biopsies. Brain Sci 2021; 11:brainsci11020132. [PMID: 33498362 PMCID: PMC7909400 DOI: 10.3390/brainsci11020132] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 12/15/2022] Open
Abstract
Despite the introduction of non-invasive techniques in the study of peripheral neuropathies, sural nerve biopsy remains the gold standard for the diagnosis of several neuropathies, including vasculitic neuropathy and neurolymphomatosis. Besides its diagnostic role, sural nerve biopsy has helped to shed light on the pathogenic mechanisms of different neuropathies. In the present review, we discuss how pathological findings helped understand the mechanisms of polyneuropathies complicating hematological diseases.
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Mihajkoska E, Poceva Panovska A, Brezovska K, Pendovska M, Taravari A, Suturkova L. The role of antibodies to peripheral nerve antigens in pathogenesis and laboratory evaluation of immune-mediated neuropathies. MAKEDONSKO FARMACEVTSKI BILTEN 2021. [DOI: 10.33320/maced.pharm.bull.2021.67.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Detection of antiganglioside autoantibodies and their association with clinically defined subtypes implicate an autoimmune mechanism of peripheraland cranial nerve damage in peripheral neuropathies.
Increased titer of antibodies that react with human peripheral nerve antigens have been reported in patients with motor neuropathy including Guillain-Barré syndrome,chronic inflammatory demyelinating polyneuropathy, multifocal motor neuropathy and sensory motor neuropathy. This study represents review of the data related to increased titers of anti-glucoconjugate antibodies in different autoimmune neuropathies and their correlation with existence of structural homology between bacterial and glycoconjugated structures, as a basis for understanding the immune pathological response to glycoproteins and glycolipids present in the human peripheral nerve as target antigens in autoimmune neuropathies.
Evaluation of presence and increased level of autoantibodies against peripheral nerve antigens could be an important parameter in laboratory evaluation, diagnosis and prognosis of autoimmune neuropathies and contribute in more efficient therapeutic approaches in treatment of these pathological conditions.
Keywords: anti-glycoconjugate antibodies, anti-ganglioside antibodies, peripheral nerves, autoimmune neuropathies
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Affiliation(s)
- Evgenija Mihajkoska
- Faculty of Pharmacy, Ss. Cyril and Methodius University in Skopje, Mother Theresa 47, 1000 Skopje, Republic of North Macedonia
| | - Ana Poceva Panovska
- Faculty of Pharmacy, Ss. Cyril and Methodius University in Skopje, Mother Theresa 47, 1000 Skopje, Republic of North Macedonia
| | - Katerina Brezovska
- Faculty of Pharmacy, Ss. Cyril and Methodius University in Skopje, Mother Theresa 47, 1000 Skopje, Republic of North Macedonia
| | - Marija Pendovska
- University Clinic for Hematology, Ss. Cyril and Methodius University in Skopje, Mother Theresa 47, 1000 Skopje, Republic of North Macedonia
| | - Arben Taravari
- Universiy Clinic for Neurology, Faculty of Medicine, Ss. Cyril and Methodius University in Skopje, 50 Divizija 6, 1000 Skopje, Republic of North Macedonia
| | - Ljubica Suturkova
- Faculty of Pharmacy, Ss. Cyril and Methodius University in Skopje, Mother Theresa 47, 1000 Skopje, Republic of North Macedonia
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Coyat C, Cazevieille C, Baudoux V, Larroze-Chicot P, Caumes B, Gonzalez-Gonzalez S. Morphological consequences of acoustic trauma on cochlear hair cells and the auditory nerve. Int J Neurosci 2018; 129:580-587. [DOI: 10.1080/00207454.2018.1552693] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Carolanne Coyat
- CILcare. 2214, Boulevard de la Lironde, Parc Scientifique Agropolis, Montpellier, France
| | - Chantal Cazevieille
- Correlative Microscopy and Electron Tomography Platform, Hopital Saint Eloi, Montpellier, France
| | - Véronique Baudoux
- CILcare. 2214, Boulevard de la Lironde, Parc Scientifique Agropolis, Montpellier, France
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Staudt M, Diederich JM, Meisel C, Meisel A, Klehmet J. Differences in peripheral myelin antigen-specific T cell responses and T memory subsets in atypical versus typical CIDP. BMC Neurol 2017; 17:81. [PMID: 28446142 PMCID: PMC5406908 DOI: 10.1186/s12883-017-0860-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/19/2017] [Indexed: 12/18/2022] Open
Abstract
Background Chronic inflammatory demyelinating polyneuropathy (CIDP) is presented by a large heterogeneity of clinical phenotypes. Around 50% of patients suffer from typical CIDP and show better therapy response than atypical variants. The goal of our study was to search for cellular immunological differences in typical versus atypical CIDP in comparison to controls. Methods We evaluated 26 (9 typical, 17 atypical) patients with mainly active-unstable CIDP using clinical and immunological examinations (enzyme-linked immunospot assay ELISPOT, fluorescence-activated cell sorting FACS) in comparison to 28 healthy, age-matched controls (HC). Typical or atypical CIDP measurements were compared with HC using Kruskal-Wallis test. Results Atypical CIDP patients showed increased frequencies of T cell subsets, especially CD4+ effector memory T cells (TEM) and CD4+ central memory T cells (TCM) as well as a tendency of higher T cell responses against the peripheral myelin antigens of PMP-22, P2, P0 and MBP peptides compared to typical CIDP. Searching for novel auto-antigens, we found that T cell responses against P0 180-199 as well as MBP 82-100 were significantly elevated in atypical CIDP patients vs. HC. Conclusions Our results indicate differences in underlying T cell responses between atypical and typical CIDP characterized by a higher peripheral myelin antigen-specific T cell responses as well as a specific altered CD4+ memory compartment in atypical CIDP. Larger multi-center studies study are warranted in order to characterize T cell auto-reactivity in atypical CIDP subgroups in order to establish immunological markers as a diagnostic tool.
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Affiliation(s)
- M Staudt
- Department of Neurology, Charité University Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - J M Diederich
- Department of Neurology, Charité University Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - C Meisel
- Department of Clinical Immunology, Charité University Medicine, Charitéplatz 1, Berlin, Germany
| | - A Meisel
- Department of Neurology, Charité University Medicine, Charitéplatz 1, 10117, Berlin, Germany
| | - J Klehmet
- Department of Neurology, Charité University Medicine, Charitéplatz 1, 10117, Berlin, Germany.
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Wan G, Corfas G. Transient auditory nerve demyelination as a new mechanism for hidden hearing loss. Nat Commun 2017; 8:14487. [PMID: 28211470 PMCID: PMC5321746 DOI: 10.1038/ncomms14487] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 01/04/2017] [Indexed: 12/31/2022] Open
Abstract
Hidden hearing loss (HHL) is a recently described auditory neuropathy believed to contribute to speech discrimination and intelligibility deficits in people with normal audiological tests. Animals and humans with HHL have normal auditory thresholds but defective cochlear neurotransmission, that is, reduced suprathreshold amplitude of the sound-evoked auditory nerve compound action potential. Currently, the only cellular mechanism known for HHL is loss of inner hair cell synapses (synaptopathy). Here we report that transient loss of cochlear Schwann cells results in permanent auditory deficits characteristic of HHL. This auditory neuropathy is not associated with synaptic loss, but rather with disruption of the first heminodes at the auditory nerve peripheral terminal. Thus, this study identifies a new mechanism for HHL, highlights the long-term consequences of transient Schwann cell loss on hearing and might provide insights into the causes of the auditory deficits reported in patients that recover from acute demyelinating diseases such as Guillain–Barré syndrome. Hidden hearing loss (HHL) is an auditory neuropathy that impairs one's ability to hear, particularly in a noisy environment. Here the authors show that in mice, transient loss of cochlear Schwann cells results in permanent disruption of the cochlear heminodal structure, leading to auditory deficits characteristic of HHL.
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Affiliation(s)
- Guoqiang Wan
- Department of Otolaryngology-Head and Neck Surgery, Kresge Hearing Research Institute, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, Michigan 48109, USA.,MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, Jiangsu Province, China
| | - Gabriel Corfas
- Department of Otolaryngology-Head and Neck Surgery, Kresge Hearing Research Institute, University of Michigan, 1150 West Medical Center Drive, Ann Arbor, Michigan 48109, USA
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Richard A, Corvol JC, Debs R, Reach P, Tahiri K, Carpentier W, Gueguen J, Guillemot V, Labeyrie C, Adams D, Viala K, Cohen Aubart F. Transcriptome Analysis of Peripheral Blood in Chronic Inflammatory Demyelinating Polyradiculoneuropathy Patients Identifies TNFR1 and TLR Pathways in the IVIg Response. Medicine (Baltimore) 2016; 95:e3370. [PMID: 27175635 PMCID: PMC4902477 DOI: 10.1097/md.0000000000003370] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
We have studied the response to intravenous immunoglobulins (IVIg) by a transcriptomic approach in 11 chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) patients (CIDP duration = 6 [0.83-6.5] years). RNA was extracted from cells in whole blood collected before and 3 weeks after IVIg treatment, and hybridized on Illumina chips. After RNA quality controls, gene expression was analyzed using statistical tests fitted for microarrays (R software, limma package), and a pathway analysis was performed using DAVID software. We identified 52 genes with expression that varied significantly after IVIg (fold change [FC] > 1.2, P < 0.001, false discovery rate [FDR] <0.05). Among these 52 genes, 7 were related to immunity, 3 were related to the tumor necrosis factor (TNF)-α receptor 1 (TNFR1) pathway (inhibitor of caspase-activated DNase (ICAD): FC = 1.8, P = 1.7E-7, FDR = 0.004; p21 protein-activated kinase 2 [PAK2]: FC = 1.66, P = 2.6E-5, FDR = 0.03; TNF-α-induced protein 8-like protein 1 [TNFAIP8L1]: P = 1.00E-05, FDR = 0.026), and 2 were related to Toll-like receptors (TLRs), especially TLRs 7 and 9, and were implicated in autoimmunity. These genes were UNC93B1 (FC = 1.6, P = 2E-5, FDR = 0.03), which transports TLRs 7 and 9 to the endolysosomes, and RNF216 (FC = 1.5, P = 1E-05, FDR = 0.03), which promotes TLR 9 degradation. Pathway analysis showed that the TNFR1 pathway was significantly lessened by IVIg (enrichment score = 24, Fischer exact test = 0.003). TNF-α gene expression was higher in responder patients than in nonresponders; however, it decreased after IVIg in responders (P = 0.04), but remained stable in nonresponders. Our data suggest the actions of IVIg on the TNFR1 pathway and an original mechanism involving innate immunity through TLRs in CIDP pathophysiology and the response to IVIg. We conclude that responder patients have stronger inflammatory activity that is lessened by IVIg.
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Affiliation(s)
- Alexandra Richard
- From the Sorbonne Universités (AR, J-CC, KT), UPMC Univ Paris 06, INSERM UMRS_1127, CIC_1422, CNRS UMR_7225, AP-HP, and ICM, Hôpital Pitié-Salpêtrière, Département des maladies du système nerveux; Hôpital Pitié Salpêtrière (RD, PR, KV), Département de Neurophysiologie Clinique; Plateforme Post-génomique P3S (WC), UPMC, Site Pitié Salpêtrière; IHU-A-ICM Bioinformatics/Biostatistics Core Facility (JG, VG), Paris; Hôpital de Bicêtre (CL, DA), Centre de Référence des Neuropathies Amyloïdes et autres Neuropathies Périphériques Rares, Le Kremlin-Bicêtre; and AP-HP, Hôpital Pitié Salpêtrière, Service de Médecine Interne, Institut E3M, Centre National de Référence Maladies auto-immunes Systémiques Rares, et Université Paris VI Pierre et Marie Curie, Sorbonnes Université, Paris, France (FCA)
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Rosch RE, Bamford A, Hacohen Y, Wraige E, Vincent A, Mewasingh L, Lim M. Guillain-Barré syndrome associated with CASPR2 antibodies: two paediatric cases. J Peripher Nerv Syst 2015; 19:246-9. [PMID: 25413786 DOI: 10.1111/jns.12089] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 06/17/2014] [Accepted: 07/31/2014] [Indexed: 11/28/2022]
Abstract
The pathogenesis of Guillain-Barré syndrome (GBS) is considered to be, at least in part, mediated by autoantibodies directed against neuronal antigens. Antibodies to contactin-associated protein-like 2 (CASPR2), part of the voltage-gated potassium channel complex (VGKC-complex), are associated with neurological disease predominantly affecting the peripheral nervous system but are not known to be associated with GBS. We report two cases of ganglioside antibody-negative paediatric GBS associated with CASPR2 antibodies. Both patients made a complete clinical recovery. The tissue distribution and function of CASPR2 make it a biologically plausible autoimmune target in GBS and its clinical relevance in GBS should be determined in further studies.
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Affiliation(s)
- Richard E Rosch
- Department of Clinical Neurosciences, Institute of Psychiatry, King's College London, London, UK
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Guimarães LE, Baker B, Perricone C, Shoenfeld Y. Vaccines, adjuvants and autoimmunity. Pharmacol Res 2015; 100:190-209. [PMID: 26275795 PMCID: PMC7129276 DOI: 10.1016/j.phrs.2015.08.003] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/05/2015] [Indexed: 12/15/2022]
Abstract
Vaccines and autoimmunity are linked fields. Vaccine efficacy is based on whether host immune response against an antigen can elicit a memory T-cell response over time. Although the described side effects thus far have been mostly transient and acute, vaccines are able to elicit the immune system towards an autoimmune reaction. The diagnosis of a definite autoimmune disease and the occurrence of fatal outcome post-vaccination have been less frequently reported. Since vaccines are given to previously healthy hosts, who may have never developed the disease had they not been immunized, adverse events should be carefully accessed and evaluated even if they represent a limited number of occurrences. In this review of the literature, there is evidence of vaccine-induced autoimmunity and adjuvant-induced autoimmunity in both experimental models as well as human patients. Adjuvants and infectious agents may exert their immune-enhancing effects through various functional activities, encompassed by the adjuvant effect. These mechanisms are shared by different conditions triggered by adjuvants leading to the autoimmune/inflammatory syndrome induced by adjuvants (ASIA syndrome). In conclusion, there are several case reports of autoimmune diseases following vaccines, however, due to the limited number of cases, the different classifications of symptoms and the long latency period of the diseases, every attempt for an epidemiological study has so far failed to deliver a connection. Despite this, efforts to unveil the connection between the triggering of the immune system by adjuvants and the development of autoimmune conditions should be undertaken. Vaccinomics is a field that may bring to light novel customized, personalized treatment approaches in the future.
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Affiliation(s)
- Luísa Eça Guimarães
- The Zabludowicz Center for Autoimmune Diseases, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | - Britain Baker
- The Zabludowicz Center for Autoimmune Diseases, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | - Carlo Perricone
- Reumatologia, Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, Italy
| | - Yehuda Shoenfeld
- The Zabludowicz Center for Autoimmune Diseases, Chaim Sheba Medical Center, Tel-Hashomer, Israel; Incumbent of the Laura Schwarz-kipp chair for research of autoimmune diseases, Sackler Faculty of Medicine, Tel-Aviv University, Israel.
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Stübgen JP. Lymphoma-associated dysimmune polyneuropathies. J Neurol Sci 2015; 355:25-36. [PMID: 26070654 DOI: 10.1016/j.jns.2015.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/05/2015] [Accepted: 06/01/2015] [Indexed: 12/24/2022]
Abstract
Lymphoma consists of a variety of malignancies of lymphocyte origin. A spectrum of clinical peripheral neuropathy syndromes with different disease mechanisms occurs in about 5% of lymphoma patients. There exists a complex inter-relationship between lymphoproliferative malignancies and autoimmunity. An imbalance in the regulation of the immune system presumably underlies various immune-mediated neuropathies in patients with lymphoma. This article reviews lymphoma and more-or-less well-defined dysimmune neuropathy subgroups that are caused by humoral and/or cell-mediated immune disease mechanisms directed against known or undetermined peripheral nerve antigens.
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Affiliation(s)
- Joerg-Patrick Stübgen
- Department of Neurology, Weill Cornell Medical College/New York Presbyterian Hospital, New York, NY 10065-4885, USA.
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Klehmet J, Staudt M, Ulm L, Unterwalder N, Meisel A, Meisel C. Circulating lymphocyte and T memory subsets in glucocorticosteroid versus IVIG treated patients with CIDP. J Neuroimmunol 2015; 283:17-22. [DOI: 10.1016/j.jneuroim.2015.03.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 03/10/2015] [Accepted: 03/12/2015] [Indexed: 11/16/2022]
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Stathopoulos P, Alexopoulos H, Dalakas MC. Autoimmune antigenic targets at the node of Ranvier in demyelinating disorders. Nat Rev Neurol 2015; 11:143-56. [DOI: 10.1038/nrneurol.2014.260] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Ientile R, Currò M, Caccamo D. Transglutaminase 2 and neuroinflammation. Amino Acids 2014; 47:19-26. [PMID: 25398223 DOI: 10.1007/s00726-014-1864-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 10/29/2014] [Indexed: 12/28/2022]
Abstract
Neuroinflammatory processes seem to play a pivotal role in various chronic neurodegenerative diseases, characterized also by the pathogenetic accumulation of specific protein aggregates. Several of these proteins have been shown to be substrates of transglutaminases, calcium-dependent enzymes that catalyze protein crosslinking reactions. However, it has recently been demonstrated that transglutaminase 2 (TG2) may also be involved in molecular mechanisms underlying inflammation. In the central nervous system, astrocytes and microglia are the cell types mainly involved in the inflammatory process. This review is focused on the increases of TG2 protein expression and enzyme activity that occur in astroglial, microglial and monocyte cell models in response to inflammatory stimuli. The transcription factor NF-κB is considered the main regulator of inflammation, being activated by a variety of stimuli including calcium influx, oxidative stress and inflammatory cytokines. Under these conditions, the over-expression of TG2 results in the sustained activation of NF-κB. Several findings emphasize the possible role of the TG2/NF-κB activation pathway in neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, multiple sclerosis and amyotrophic lateral sclerosis. Although further studies are needed to characterize the TG2/NF-κB cross-talk in monocytes/macrophages/microglia within the central nervous system, some results show that TG2 and NF-κB are co-localized in cell compartments. Together, evidence suggests that TG2 plays a role in neuroinflammation and contributes to the production of compounds that are potentially deleterious to neuronal cells.
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Affiliation(s)
- Riccardo Ientile
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, AOU Policlinico "G. Martino", Via C. Valeria, Messina, Italy,
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