Evidence map›Paper›PMID 23857767›Full record

ArticleThe Journal of cell biology2013

Ablation of astrocytic laminin impairs vascular smooth muscle cell function and leads to hemorrhagic stroke.

Zu-Lin Chen, Yao Yao, Erin H Norris, Anna Kruyer, Odella Jno-Charles, Akbarshakh Akhmerov, Sidney Strickland

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 6% 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

79 citing papers in PubMed, 1 synthesis or guideline pooled it, 113 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Glycocalyx and basal lamina in neurological disorders.Matrix biology : journal of the International Society for Matrix Biology · 2026
    Review
  5. Article
  6. Review
  7. Article
  8. Laminins and the blood-brain barrier.Matrix biology : journal of the International Society for Matrix Biology · 2025
    Review
  9. Review
  10. Article
  11. Development of perivascular astrocyte processes.Frontiers in neuroscience · 2025
    Review
  12. Article
  13. Review
  14. A dispensable role of mural cell-derived laminin-Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  15. A dispensable role of oligodendrocyte-derived laminin-α5 in brain homeostasis and intracerebral hemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  16. Article
  17. Article
  18. The importance of laminin at the blood-brain barrier.Neural regeneration research · 2023
    Review
  19. Causes of Hemorrhagic Stroke: a Cellular Perspective.Translational stroke research · 2023
    Article
  20. Article

19 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

7 authors at 1 institution in 1 country.

Zu-Lin ChenLaboratory of Neurobiology and Genetics, The Rockefeller University, New York, NY 10065, USA.
Yao Yao
Erin H Norris
Anna Kruyer
Odella Jno-Charles
Akbarshakh Akhmerov
Sidney Strickland
Rockefeller University · US

Funding

Role of the tPA/plasmin System in Alzheimers DiseaseR01NS050537 · NINDS · ROCKEFELLER UNIVERSITY · PI STRICKLAND, SIDNEY · 2004 to 2015
$5.7M
NINDS NIH HHS NS050537NINDS NIH HHS R01 NS050537
6 · The paper itself

Abstract

Astrocytes express laminin and assemble basement membranes (BMs) at their endfeet, which ensheath the cerebrovasculature. The function of astrocytic laminin in cerebrovascular integrity is unknown. We show that ablation of astrocytic laminin by tissue-specific Cre-mediated recombination disrupted endfeet BMs and led to hemorrhage in deep brain regions of adult mice, resembling human hypertensive hemorrhage. The lack of astrocytic laminin led to impaired function of vascular smooth muscle cells (VSMCs), where astrocytes have a closer association with VSMCs in small arterioles, and was associated with hemorrhagic vessels, which exhibited VSMC fragmentation and vascular wall disassembly. Acute disruption of astrocytic laminin in the striatum of adult mice also impaired VSMC function, indicating that laminin is necessary for VSMC maintenance. In vitro, both astrocytes and astrocytic laminin promoted brain VSMC differentiation. These results show that astrocytes regulate VSMCs and vascular integrity in small vessels of deep brain regions. Therefore, astrocytes may be a possible target for hemorrhagic stroke prevention and therapy.

Indexed as

AnimalsArteriolesAstrocytesBasement MembraneCell DifferentiationHippocampusIntracranial Hemorrhage, HypertensiveLamininMiceMice, Inbred C57BLMice, KnockoutMuscle, Smooth, VascularMyocytes, Smooth MuscleMyosin Heavy ChainsNeuronsPhenotypeLamininlaminin gamma 1Myosin Heavy ChainsPlatelet Endothelial Cell Adhesion Molecule-1

Identifiers

PMID23857767
PMCPMC3718965
OpenAlexW2172257222

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.