The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis Diagnosis

Abstract At the last European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) meeting, Montalban and the experts’ panel announced the 2024 revision of the McDonald criteria. The optic nerve has been added as a fifth dissemination in space (DIS) criteria topography among the main...

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Main Authors: Michael Levraut, Cassandre Landes-Chateau, Lydiane Mondot, Mikael Cohen, Christine Lebrun-Frenay
Format: Article
Language:English
Published: Adis, Springer Healthcare 2025-04-01
Series:Neurology and Therapy
Subjects:
Online Access:https://doi.org/10.1007/s40120-025-00737-7
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author Michael Levraut
Cassandre Landes-Chateau
Lydiane Mondot
Mikael Cohen
Christine Lebrun-Frenay
author_facet Michael Levraut
Cassandre Landes-Chateau
Lydiane Mondot
Mikael Cohen
Christine Lebrun-Frenay
author_sort Michael Levraut
collection DOAJ
description Abstract At the last European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) meeting, Montalban and the experts’ panel announced the 2024 revision of the McDonald criteria. The optic nerve has been added as a fifth dissemination in space (DIS) criteria topography among the main changes. Multiple sclerosis (MS) can be diagnosed in patients with radiologically isolated syndrome (RIS) if specific biomarkers are added to at least two of the five DIS criteria. Among the particular MS biomarkers, the kappa free light chain index (kFLC index) positivity will be added to oligoclonal band (OCB) detection to fulfill intrathecal immunoglobulin synthesis, and the central vein sign (CVS) will be able to ensure the specificity of the lesions detected on MRI scans. This review summarises the knowledge on the kFLC index and the CVS in people with MS and RIS, allowing them to be incorporated into the proposed revision of the McDonald criteria.
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institution Kabale University
issn 2193-8253
2193-6536
language English
publishDate 2025-04-01
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series Neurology and Therapy
spelling doaj-art-ce4f7ca1617d4160858fdd0ccfafc5152025-08-20T03:54:11ZengAdis, Springer HealthcareNeurology and Therapy2193-82532193-65362025-04-0114371173110.1007/s40120-025-00737-7The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis DiagnosisMichael Levraut0Cassandre Landes-Chateau1Lydiane Mondot2Mikael Cohen3Christine Lebrun-Frenay4Unité de Recherche Clinique Côte d’Azur, Équipe URRISUnité de Recherche Clinique Côte d’Azur, Équipe URRISUnité de Recherche Clinique Côte d’Azur, Équipe URRISUnité de Recherche Clinique Côte d’Azur, Équipe URRISUnité de Recherche Clinique Côte d’Azur, Équipe URRISAbstract At the last European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS) meeting, Montalban and the experts’ panel announced the 2024 revision of the McDonald criteria. The optic nerve has been added as a fifth dissemination in space (DIS) criteria topography among the main changes. Multiple sclerosis (MS) can be diagnosed in patients with radiologically isolated syndrome (RIS) if specific biomarkers are added to at least two of the five DIS criteria. Among the particular MS biomarkers, the kappa free light chain index (kFLC index) positivity will be added to oligoclonal band (OCB) detection to fulfill intrathecal immunoglobulin synthesis, and the central vein sign (CVS) will be able to ensure the specificity of the lesions detected on MRI scans. This review summarises the knowledge on the kFLC index and the CVS in people with MS and RIS, allowing them to be incorporated into the proposed revision of the McDonald criteria.https://doi.org/10.1007/s40120-025-00737-7Multiple sclerosisRadiologically isolated syndromeKappa free light chains indexCentral vein sign
spellingShingle Michael Levraut
Cassandre Landes-Chateau
Lydiane Mondot
Mikael Cohen
Christine Lebrun-Frenay
The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis Diagnosis
Neurology and Therapy
Multiple sclerosis
Radiologically isolated syndrome
Kappa free light chains index
Central vein sign
title The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis Diagnosis
title_full The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis Diagnosis
title_fullStr The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis Diagnosis
title_full_unstemmed The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis Diagnosis
title_short The Kappa Free Light Chains Index and Central Vein Sign: Two New Biomarkers for Multiple Sclerosis Diagnosis
title_sort kappa free light chains index and central vein sign two new biomarkers for multiple sclerosis diagnosis
topic Multiple sclerosis
Radiologically isolated syndrome
Kappa free light chains index
Central vein sign
url https://doi.org/10.1007/s40120-025-00737-7
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