Evidence map›Paper›PMID 27422020›Full record

ArticleBMC neuroscience2016

Col1a1+ perivascular cells in the brain are a source of retinoic acid following stroke.

Kathleen K Kelly, Amber M MacPherson, Himmat Grewal, Frank Strnad, Jace W Jones, Jianshi Yu, Keely Pierzchalski, Maureen A Kane, Paco S Herson, Julie A Siegenthaler

Open access · goldAbstract read
In one paragraph

Article in BMC neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

47 citing papers in PubMed, 80 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Laminins and the blood-brain barrier.Matrix biology : journal of the International Society for Matrix Biology · 2025
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

10 authors at 3 institutions in 1 country.

Kathleen K KellyDepartment of Pediatrics, Section of Developmental Biology, University of Colorado Denver-Anschutz Medical Campus, 12800 E. 19th Ave MS-8313, Aurora, CO, 80045, USA.
Amber M MacPhersonDepartment of Pediatrics, Section of Developmental Biology, University of Colorado Denver-Anschutz Medical Campus, 12800 E. 19th Ave MS-8313, Aurora, CO, 80045, USA.
Himmat GrewalDepartment of Anesthesiology, University of Colorado Denver-Anschutz Medical Campus, Aurora, CO, 80045, USA.
Frank StrnadDepartment of Anesthesiology, University of Colorado Denver-Anschutz Medical Campus, Aurora, CO, 80045, USA.
Jace W JonesDepartment of Pharmaceutical Sciences, University of Maryland, Baltimore School of Pharmacy, Baltimore, MD, 21201, USA.
Jianshi YuDepartment of Pharmaceutical Sciences, University of Maryland, Baltimore School of Pharmacy, Baltimore, MD, 21201, USA.
Keely PierzchalskiDepartment of Pharmaceutical Sciences, University of Maryland, Baltimore School of Pharmacy, Baltimore, MD, 21201, USA.
Maureen A KaneDepartment of Pharmaceutical Sciences, University of Maryland, Baltimore School of Pharmacy, Baltimore, MD, 21201, USA.
Paco S HersonDepartment of Anesthesiology, University of Colorado Denver-Anschutz Medical Campus, Aurora, CO, 80045, USA.
Julie A SiegenthalerDepartment of Pediatrics, Section of Developmental Biology, University of Colorado Denver-Anschutz Medical Campus, 12800 E. 19th Ave MS-8313, Aurora, CO, 80045, USA. julie.siegenthaler@ucdenver.edu.
University of Colorado Anschutz Medical Campus · USUniversity of Maryland, Baltimore · USUniversity of Colorado Denver · US

Funding

CaMKII in global cerebral ischemiaR01NS080851 · NINDS · UNIVERSITY OF COLORADO DENVER · PI BAYER, K. ULRICH, HERSON, PACO S · 2013 to 2017
$2.1M
Molecular determinants of retinoid metabolism in embryonic tissuesR01HD077260 · NICHD · UNIVERSITY OF MARYLAND BALTIMORE · PI KANE, MAUREEN A, MOISE, ALEX RADU · 2014 to 2018
$1.6M
Forebrain angiogenesis in Foxc1 mutant miceR00NS070920 · NINDS · UNIVERSITY OF COLORADO DENVER · PI SIEGENTHALER, JULIE · 2012 to 2014
$736k
NIAID NIH HHS HHSN272200700046CNICHD NIH HHS R01 HD077260NINDS NIH HHS R00 NS070920NINDS NIH HHS R01 NS080851
6 · The paper itself

Abstract

backgroundPerivascular stromal cells (PSCs) are a recently identified cell type that comprises a small percentage of the platelet derived growth factor receptor-β+ cells within the CNS perivascular space. PSCs are activated following injury to the brain or spinal cord, expand in number and contribute to fibrotic scar formation within the injury site. Beyond fibrosis, their high density in the lesion core makes them a potential significant source of signals that act on neural cells adjacent to the lesion site.

resultsOur developmental analysis of PSCs, defined by expression of Collagen1a1 in the maturing brain, revealed that PSCs first appear postnatally and may originate from the meninges. PSCs express many of the same markers as meningeal fibroblasts, including expression of the retinoic acid (RA) synthesis proteins Raldh1 and Raldh2. Using a focal brain ischemia injury model to induce PSC activation and expansion, we show a substantial increase in Raldh1+/Raldh2+ PSCs and Raldh1+ activated macrophages in the lesion core. We find that RA levels are significantly elevated in the ischemic hemisphere and induce signaling in astrocytes and neurons in the peri-infarct region.

conclusionsThis study highlights a dual role for activated, non-neural cells where PSCs deposit fibrotic ECM proteins and, along with macrophages, act as a potentially important source of RA, a potent signaling molecule that could influence recovery events in a neuroprotective fashion following brain injury.

Indexed as

AnimalsAnimals, NewbornBrainCollagen Type ICollagen Type I, alpha 1 ChainDisease Models, AnimalImmunohistochemistryInfarction, Middle Cerebral ArteryMaleMice, Inbred C57BLMice, Inbred ICRMice, TransgenicPericytesStrokeStromal CellsTretinoinCollagen Type ICollagen Type I, alpha 1 ChainTretinoinBrain fibrosisMeningesPericytePerivascular stromal cellRetinoic acidStroke

Identifiers

PMID27422020
PMCPMC4947279
OpenAlexW2473785740

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.