{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T09:02:27Z","timestamp":1794301347922,"version":"4.9.0"},"reference-count":175,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2022,6,7]],"date-time":"2022-06-07T00:00:00Z","timestamp":1654560000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Dutch MS Research Foundation","award":["MS18-358"],"award-info":[{"award-number":["MS18-358"]}]},{"name":"Dutch MS Research Foundation","award":["MS20-1106"],"award-info":[{"award-number":["MS20-1106"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomolecules"],"abstract":"<jats:p>Multiple sclerosis (MS) is an inflammatory disease of the central nervous system (CNS) known for the manifestation of demyelinated lesions throughout the CNS, leading to neurodegeneration. To date, not all pathological mechanisms that drive disease progression are known, but the clinical benefits of anti-CD20 therapies have put B cells in the spotlight of MS research. Besides their pathological effects in the periphery in MS, B cells gain access to the CNS where they can contribute to disease pathogenesis. Specifically, B cells accumulate in perivascular infiltrates in the brain parenchyma and the subarachnoid spaces of the meninges, but are virtually absent from the choroid plexus. Hence, the possible migration of B cells over the blood\u2013brain-, blood\u2013meningeal-, and blood\u2013cerebrospinal fluid (CSF) barriers appears to be a crucial step to understanding B cell-mediated pathology. To gain more insight into the molecular mechanisms that regulate B cell trafficking into the brain, we here provide a comprehensive overview of the different CNS barriers in health and in MS and how they translate into different routes for B cell migration. In addition, we review the mechanisms of action of diverse therapies that deplete peripheral B cells and\/or block B cell migration into the CNS. Importantly, this review shows that studying the different routes of how B cells enter the inflamed CNS should be the next step to understanding this disease.<\/jats:p>","DOI":"10.3390\/biom12060800","type":"journal-article","created":{"date-parts":[[2022,6,9]],"date-time":"2022-06-09T10:49:14Z","timestamp":1654771754000},"page":"800","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":37,"title":["Breaching Brain Barriers: B Cell Migration in Multiple Sclerosis"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7849-9302","authenticated-orcid":false,"given":"Carla","family":"Rodriguez-Mogeda","sequence":"first","affiliation":[{"name":"MS Center Amsterdam, Molecular Cell Biology and Immunology, Vrije Universiteit Amsterdam, Amsterdam Neurosciences, Amsterdam UMC Location VUmc, 1081 Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sabela","family":"Rodr\u00edguez-Lorenzo","sequence":"additional","affiliation":[{"name":"MS Center Amsterdam, Molecular Cell Biology and Immunology, Vrije Universiteit Amsterdam, Amsterdam Neurosciences, Amsterdam UMC Location VUmc, 1081 Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiji","family":"Attia","sequence":"additional","affiliation":[{"name":"MS Center Amsterdam, Molecular Cell Biology and Immunology, Vrije Universiteit Amsterdam, Amsterdam Neurosciences, Amsterdam UMC Location VUmc, 1081 Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jack","family":"van Horssen","sequence":"additional","affiliation":[{"name":"MS Center Amsterdam, Molecular Cell Biology and Immunology, Vrije Universiteit Amsterdam, Amsterdam Neurosciences, Amsterdam UMC Location VUmc, 1081 Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1407-6220","authenticated-orcid":false,"given":"Maarten E.","family":"Witte","sequence":"additional","affiliation":[{"name":"MS Center Amsterdam, Molecular Cell Biology and Immunology, Vrije Universiteit Amsterdam, Amsterdam Neurosciences, Amsterdam UMC Location VUmc, 1081 Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helga E.","family":"de Vries","sequence":"additional","affiliation":[{"name":"MS Center Amsterdam, Molecular Cell Biology and Immunology, Vrije Universiteit Amsterdam, Amsterdam Neurosciences, Amsterdam UMC Location VUmc, 1081 Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,6,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1502","DOI":"10.1016\/S0140-6736(08)61620-7","article-title":"Multiple sclerosis","volume":"372","author":"Compston","year":"2008","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1038\/s41572-018-0041-4","article-title":"Multiple sclerosis","volume":"4","author":"Filippi","year":"2018","journal-title":"Nat. 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