Evidence map›Paper›PMID 27522506›Full record

ReviewActa neuropathologica2016

Vascular, glial, and lymphatic immune gateways of the central nervous system.

Britta Engelhardt, Roxana O Carare, Ingo Bechmann, Alexander Flügel, Jon D Laman, Roy O Weller

Open access · hybridAbstract readReview
In one paragraph

Review in Acta neuropathologica, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 224 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
224citing papers in PubMed, 4 pooled it
22.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

224 citing papers in PubMed, 4 syntheses or guidelines pooled it, 350 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Intrathecal drug delivery in the era of nanomedicine.Advanced drug delivery reviews · 2020
    Pooled it
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. SV2A PET reveals synaptic density loss in experimental autoimmune encephalomyelitis and in a pilot multiple sclerosis study.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  15. Article
  16. Review
  17. Discovery of Abundant Nano-scale Lymphatic-like Vessels in Brains.bioRxiv : the preprint server for biology · 2026
    Article
  18. Observational
  19. Review
  20. Review

164 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 4 countries.

Britta EngelhardtTheodor Kocher Institute, University of Bern, 3012, Bern, Switzerland.
Roxana O CarareFaculty of Medicine, University of Southampton, Southampton, UK. rcn@soton.ac.uk.
Ingo BechmannInstitute of Anatomy, University of Leipzig, Leipzig, Germany.
Alexander FlügelInstitute of Neuroimmunology and Institute for Multiple Sclerosis Research, University Medical Centre Göttingen, 37073, Göttingen, Germany.
Jon D LamanDepartment of Neuroscience, University Medical Center Groningen (UMCG), University of Groningen, 9713 AV, Groningen, The Netherlands.
Roy O WellerFaculty of Medicine, University of Southampton, Southampton, UK. row@soton.ac.uk.
Leipzig University · DEUniversity Hospital Southampton NHS Foundation Trust · GBUniversity of Bern · CHUniversity of Groningen · NLUniversity of Southampton · GB

Funding

Biotechnology and Biological Sciences Research Council
6 · The paper itself

Abstract

Immune privilege of the central nervous system (CNS) has been ascribed to the presence of a blood-brain barrier and the lack of lymphatic vessels within the CNS parenchyma. However, immune reactions occur within the CNS and it is clear that the CNS has a unique relationship with the immune system. Recent developments in high-resolution imaging techniques have prompted a reassessment of the relationships between the CNS and the immune system. This review will take these developments into account in describing our present understanding of the anatomical connections of the CNS fluid drainage pathways towards regional lymph nodes and our current concept of immune cell trafficking into the CNS during immunosurveillance and neuroinflammation. Cerebrospinal fluid (CSF) and interstitial fluid are the two major components that drain from the CNS to regional lymph nodes. CSF drains via lymphatic vessels and appears to carry antigen-presenting cells. Interstitial fluid from the CNS parenchyma, on the other hand, drains to lymph nodes via narrow and restricted basement membrane pathways within the walls of cerebral capillaries and arteries that do not allow traffic of antigen-presenting cells. Lymphocytes targeting the CNS enter by a two-step process entailing receptor-mediated crossing of vascular endothelium and enzyme-mediated penetration of the glia limitans that covers the CNS. The contribution of the pathways into and out of the CNS as initiators or contributors to neurological disorders, such as multiple sclerosis and Alzheimer's disease, will be discussed. Furthermore, we propose a clear nomenclature allowing improved precision when describing the CNS-specific communication pathways with the immune system.

Indexed as

Alzheimer DiseaseAnimalsCentral Nervous SystemExtracellular FluidHumansLymph NodesNervous System DiseasesNeurogliaAlzheimer’s diseaseAntigen-presenting cellsBlood–brain barrierCNSCSFDendritic cellsGlia limitans: multiple sclerosisImmune privilegeInterstitial fluidLymphatic drainage

Identifiers

PMID27522506
PMCPMC4992028
OpenAlexW2508310112

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.