{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T19:32:48Z","timestamp":1792179168761,"version":"4.4.0"},"reference-count":118,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2023,5,13]],"date-time":"2023-05-13T00:00:00Z","timestamp":1683936000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["CIMB"],"abstract":"<jats:p>Being immune privileged, the central nervous system (CNS) is constituted by unique parenchymal and non-parenchymal tissue-resident macrophages, namely, microglia and border-associated macrophages (BAMs), respectively. BAMs are found in the choroid plexus, meningeal and perivascular spaces, playing critical roles in maintaining CNS homeostasis while being phenotypically and functionally distinct from microglial cells. Although the ontogeny of microglia has been largely determined, BAMs need comparable scrutiny as they have been recently discovered and have not been thoroughly explored. Newly developed techniques have transformed our understanding of BAMs, revealing their cellular heterogeneity and diversity. Recent data showed that BAMs also originate from yolk sac progenitors instead of bone marrow-derived monocytes, highlighting the absolute need to further investigate their repopulation pattern in adult CNS. Shedding light on the molecular cues and drivers orchestrating BAM generation is essential for delineating their cellular identity. BAMs are receiving more attention since they are gradually incorporated into neurodegenerative and neuroinflammatory disease evaluations. The present review provides insights towards the current understanding regarding the ontogeny of BAMs and their involvement in CNS diseases, paving their way into targeted therapeutic strategies and precision medicine.<\/jats:p>","DOI":"10.3390\/cimb45050272","type":"journal-article","created":{"date-parts":[[2023,5,15]],"date-time":"2023-05-15T02:56:57Z","timestamp":1684119417000},"page":"4285-4300","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":63,"title":["CNS Border-Associated Macrophages: Ontogeny and Potential Implication in Disease"],"prefix":"10.3390","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9134-1083","authenticated-orcid":false,"given":"Iasonas","family":"Dermitzakis","sequence":"first","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8607-6695","authenticated-orcid":false,"given":"Paschalis","family":"Theotokis","sequence":"additional","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1783-5111","authenticated-orcid":false,"given":"Paschalis","family":"Evangelidis","sequence":"additional","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-6525-1873","authenticated-orcid":false,"given":"Efthymia","family":"Delilampou","sequence":"additional","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0519-1670","authenticated-orcid":false,"given":"Nikolaos","family":"Evangelidis","sequence":"additional","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-0896-3854","authenticated-orcid":false,"given":"Anastasia","family":"Chatzisavvidou","sequence":"additional","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9712-8275","authenticated-orcid":false,"given":"Eleni","family":"Avramidou","sequence":"additional","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7075-878X","authenticated-orcid":false,"given":"Maria Eleni","family":"Manthou","sequence":"additional","affiliation":[{"name":"Department of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"eaav0492","DOI":"10.1126\/sciimmunol.aav0492","article-title":"The Anatomy and Immunology of Vasculature in the Central Nervous System","volume":"4","author":"Mastorakos","year":"2019","journal-title":"Sci. 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