EBV
Epstein-Barr Virus (Human Herpesvirus 4 & GlialCAM Molecular Mimicry)
エプスタイン・バール・ウイルス（EBV：MS発症リスクとGlialCAM分子相同性）
1. Biological & Technical Mechanism
Longitudinal tracking of over 10 million young adults demonstrated that Epstein-Barr Virus (EBV) seroconversion precedes both serum Neurofilament Light Chain (NfL) elevation and clinical Multiple Sclerosis onset, increasing MS risk 32-fold. Single-cell B-cell receptor (BCR) and T-cell receptor (TCR) sequencing of cerebrospinal fluid (CSF) plasmablasts has revealed pathogenic molecular mimicry: antibodies directed against a specific peptide region of EBV Nuclear Antigen 1 (EBNA1) cross-react with phosphorylated GlialCAM (an adhesion molecule expressed by astrocytes and oligodendrocytes), alpha-crystallin B (CRYAB), and anoctamin-2 (ANO2), while latent EBV infection immortalizes autoreactive B-cell clones in meningeal lymphoid follicles.
1,000万人規模の縦断コホート追跡研究により、エプスタイン・バール・ウイルス（EBV）の初感染（セロコンバージョン）が血中NfL上昇および多発性硬化症（MS）の発症に先行し、MS発症リスクを約32倍に高める必須級のトリガーであることが証明されました。さらに髄液中形質芽細胞の単一細胞BCR/TCRレパトア解析により、EBV核抗原1（EBNA1）に対する抗体がアストロサイトやオリゴデンドロサイトに発現する接着分子 **GlialCAM**（およびCRYAB、ANO2）と交差反応する「分子相同性（Molecular Mimicry）」が解明され、HLA-DRB1*15:01遺伝子型との相互作用によって中枢神経系の脱髄免疫応答を引き起こすメカニズムが特定されています。
2. Open Science & Clinical Trial Significance
Open single-cell V(D)J repertoire, phage-display VirScan, and spatial meningeal B-cell datasets targeting EBV are driving vaccine and EBV-specific T-cell / B-cell therapeutic pipelines in MS.
髄液および末梢血の単一細胞V(D)Jシークエンシング（scBCR-seq / scTCR-seq）やエピトープマッピングの公開データセットは、抗CD20抗体やBTK阻害薬の作用機序解明、および次世代EBV標的ワクチン開発の基盤となっています。
Related Neuroscience Terms & Standards
High-throughput transcriptomic profiling at individual cell or nucleus resolution, enabling identification of disease-associated microglia (DAM), astrocytes, and vulnerable neuronal subtypes.
Oral small-molecule therapeutics crossing the blood-brain barrier to simultaneously inhibit B-cell receptor signaling and FcγR-mediated proinflammatory microglial activation in Multiple Sclerosis.
Axonal cytoskeletal protein released into CSF and blood upon neuroaxonal injury; a cross-disease biomarker of neurodegeneration rate in ALS, MS, AD, and FTD.
Chronic white matter MS lesions bordered by a dense rim of iron-laden, proinflammatory activated microglia/macrophages, visible on T2* phase MRI, SWI, and QSM.
Open Datasets & Research Publications Related to EBV
Multiple Sclerosis and Viruses: « Liaisons Dangereuses ».
Multiple sclerosis (MS) is a complex, multifactorial neurodegenerative disease with an aetiology that is still partially elusive. Several risk factors are associated with MS development including genetic predisposition and various environmental stressors; however, recently, viral infections have gained significant attention as a crucial environmental trigger. Despite the well-established link between Epstein-Barr virus (EBV) and MS susceptibility, a single-pathogen model fails to clearly characterise the molecular cascades driving the disease, suggesting that the transition from infection to autoimmune response involves more than one viral agent. In this review we examine the speculation that the interactions among different neurotropic viruses could serve a collective causative role in MS, which is under-researched in the literature at present. We summarise contradictory evidence on the role of different viral agents, including the Herpesviridae family (Human Cytomegalovirus, EBV, Herpes Simplex Viruses HSV-1 and HSV-2, and Varicella Zoster Virus), Paramyxoviridae family (Measles Virus and Rubella Virus), Influenza virus, SARS-CoV-2, and Human Endogenous Retroviruses (HERVs). Through interplay within shared molecular pathways, immune modulation, and activation of latent infections, these viruses may collectively influence the inflammatory and demyelinating processes that characterise MS. This review evaluates the etiological role of viral interplay in MS through the cumulative and interactive effects of these pathogens. The available epidemiological, immunological, and experimental data converge on the concept that viral co-exposures act synergistically to shape MS susceptibility in genetically predisposed individuals. Characterising these viral interactions presents a new research direction for the identification of novel biomarkers and the development of preventative strategies through the targeted control of viral networks.
MSDA: COVID19 GDSI LocalDashboard - Federated MS Data Toolkit
Official open-source repository and tool for Multiple Sclerosis federated research and data harmonization under MS-DATA-ALLIANCE.
Global Data Sharing Initiative (GDSI): Containerized Federated Analysis Pipeline for MS Registries
International federated research initiative and containerized query framework allowing participating national MS registries to analyze disease-modifying therapy (DMT) safety, anti-CD20 outcomes, and PIRA progression without transferring identifiable patient data.
CNM-Au8 Treatment Is Associated With Reduced Chronic Lesion Tissue Expansion in Relapsing-Remitting Multiple Sclerosis
BackgroundCNM-Au8, a catalytic nanocrystalline gold suspension, is proposed to support neuronal bioenergetics, but its effect on chronic lesion evolution in multiple sclerosis (MS) has not been reported. ObjectivesTo evaluate the effect of CNM-Au8 on chronic lesion tissue expansion (CLTE). Results...
Dietary Patterns and Nutritional Factors in Multiple Sclerosis: A Narrative Review
Research article from Europe PMC.
MSDA Core Dataset (CDS): Standardized Global Real-World Data Harmonization Framework for Multiple Sclerosis
The MSDA Core Dataset (CDS) establishes a 44-variable international harmonization schema mapped to the OMOP Common Data Model, enabling privacy-preserving federated analytics across global Multiple Sclerosis registries.
Disclaimer: This encyclopedia entry is intended for academic neuroscience research and data science reference only, and does not constitute medical advice.