Conserved meningeal lymphatic drainage circuits in mice and humans - Sorbonne Université Accéder directement au contenu
Article Dans Une Revue Journal of Experimental Medicine Année : 2022

Conserved meningeal lymphatic drainage circuits in mice and humans

Celine Corcy
Farhat Benbelkacem
Yunling Xu

Résumé

Meningeal lymphatic vessels (MLVs) were identified in the dorsal and caudobasal regions of the dura mater, where they ensure waste product elimination and immune surveillance of brain tissues. Whether MLVs exist in the anterior part of the murine and human skull and how they connect with the glymphatic system and extracranial lymphatics remained unclear. Here, we used light-sheet fluorescence microscopy (LSFM) imaging of mouse whole-head preparations after OVA-A555 tracer injection into the cerebrospinal fluid (CSF) and performed real-time vessel-wall (VW) magnetic resonance imaging (VW-MRI) after systemic injection of gadobutrol in patients with neurological pathologies. We observed a conserved three-dimensional anatomy of MLVs in mice and humans that aligned with dural venous sinuses but not with nasal CSF outflow, and we discovered an extended anterior MLV network around the cavernous sinus, with exit routes through the foramina of emissary veins. VW-MRI may provide a diagnostic tool for patients with CSF drainage defects and neurological diseases.

Domaines

Neurosciences

Dates et versions

hal-03714092 , version 1 (05-07-2022)

Identifiants

Citer

Laurent Jacob, Jose de Brito Neto, Stephanie Lenck, Celine Corcy, Farhat Benbelkacem, et al.. Conserved meningeal lymphatic drainage circuits in mice and humans. Journal of Experimental Medicine, 2022, 219 (8), ⟨10.1084/jem.20220035⟩. ⟨hal-03714092⟩
45 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More