Cerebrospinal fluid can exit into the skull bone marrow and instruct cranial hematopoiesis in mice with bacterial meningitis.
Journal
Nature neuroscience
ISSN: 1546-1726
Titre abrégé: Nat Neurosci
Pays: United States
ID NLM: 9809671
Informations de publication
Date de publication:
05 2022
05 2022
Historique:
received:
19
10
2021
accepted:
23
03
2022
pubmed:
3
5
2022
medline:
11
5
2022
entrez:
2
5
2022
Statut:
ppublish
Résumé
Interactions between the immune and central nervous systems strongly influence brain health. Although the blood-brain barrier restricts this crosstalk, we now know that meningeal gateways through brain border tissues facilitate intersystem communication. Cerebrospinal fluid (CSF), which interfaces with the glymphatic system and thereby drains the brain's interstitial and perivascular spaces, facilitates outward signaling beyond the blood-brain barrier. In the present study, we report that CSF can exit into the skull bone marrow. Fluorescent tracers injected into the cisterna magna of mice migrate along perivascular spaces of dural blood vessels and then travel through hundreds of sub-millimeter skull channels into the calvarial marrow. During meningitis, bacteria hijack this route to invade the skull's hematopoietic niches and initiate cranial hematopoiesis ahead of remote tibial sites. As skull channels also directly provide leukocytes to meninges, the privileged sampling of brain-derived danger signals in CSF by regional marrow may have broad implications for inflammatory neurological disorders.
Identifiants
pubmed: 35501382
doi: 10.1038/s41593-022-01060-2
pii: 10.1038/s41593-022-01060-2
pmc: PMC9081225
mid: NIHMS1792336
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
567-576Subventions
Organisme : NINDS NIH HHS
ID : R01 NS108419
Pays : United States
Organisme : NHLBI NIH HHS
ID : R00 HL151750
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL125428
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL158534
Pays : United States
Organisme : NHLBI NIH HHS
ID : R35 HL135752
Pays : United States
Organisme : NHLBI NIH HHS
ID : P01 HL142494
Pays : United States
Organisme : NHLBI NIH HHS
ID : R35 HL139598
Pays : United States
Organisme : NHLBI NIH HHS
ID : F32 HL158040
Pays : United States
Organisme : NCI NIH HHS
ID : T32 CA079443
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK043351
Pays : United States
Commentaires et corrections
Type : CommentIn
Type : CommentIn
Informations de copyright
© 2022. The Author(s), under exclusive licence to Springer Nature America, Inc.
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