Evidence map›Paper›PMID 27811335›Full record

ArticleStroke2016

Variants of Rab GTPase-Effector Binding Protein-2 Cause Variation in the Collateral Circulation and Severity of Stroke.

Jennifer L Lucitti, Robert Sealock, Brian K Buckley, Hua Zhang, Lin Xiao, Andrew C Dudley, James E Faber

Open access · bronzeAbstract read
In one paragraph

Article in Stroke, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
4.0field-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

42 citing papers in PubMed, 71 citations in OpenAlex.

  1. Trial
  2. Genetic determinants of insufficiency of the collateral circulation.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
  3. Article
  4. Article
  5. Sanctuary sites in cortical stroke.Frontiers in neurology · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Large differences in collateral blood vessel abundance among individuals arise from multiple genetic variants.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  11. Characterizing Fast and Slow Progressors in Anterior Circulation Large Vessel Occlusion Strokes.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2023
    Article
  12. Review
  13. Review
  14. Collateral Flow: Prolonging the Ischemic Penumbra.Translational stroke research · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. International stroke genetics consortium recommendations for studies of genetics of stroke outcome and recovery.International journal of stroke : official journal of the International Stroke Society · 2022
    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

7 authors at 1 institution in 1 country.

Jennifer L LucittiFrom the Department of Cell Biology and Physiology, The McAllister Heart Institute, University of North Carolina, Chapel Hill.
Robert SealockFrom the Department of Cell Biology and Physiology, The McAllister Heart Institute, University of North Carolina, Chapel Hill.
Brian K BuckleyFrom the Department of Cell Biology and Physiology, The McAllister Heart Institute, University of North Carolina, Chapel Hill.
Hua ZhangFrom the Department of Cell Biology and Physiology, The McAllister Heart Institute, University of North Carolina, Chapel Hill.
Lin XiaoFrom the Department of Cell Biology and Physiology, The McAllister Heart Institute, University of North Carolina, Chapel Hill.
Andrew C DudleyFrom the Department of Cell Biology and Physiology, The McAllister Heart Institute, University of North Carolina, Chapel Hill.
James E FaberFrom the Department of Cell Biology and Physiology, The McAllister Heart Institute, University of North Carolina, Chapel Hill. jefaber@med.unc.edu.
University of North Carolina at Chapel Hill · US

Funding

Targeting the vasculature to enhance anti-tumor immunityR01CA177875 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Andrew Carl Dudley · 2014 to 2026
$4.5M
Targeting the Pial Collateral Circulation for Mitigation of Cerebral IschemiaR01NS083633 · NINDS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ZHANG, HUA · 2013 to 2023
$4.5M
Maintenance and Rarefaction of the Native Collateral CirculationR01HL111070 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI FABER, JAMES E · 2012 to 2015
$1.9M
NCI NIH HHS R01 CA177875NHLBI NIH HHS R01 HL111070NINDS NIH HHS R01 NS083633
6 · The paper itself

Abstract

background and purposeThe extent (number and diameter) of collateral vessels varies widely and is a major determinant, along with arteriogenesis (collateral remodeling), of variation in severity of tissue injury after large artery occlusion. Differences in genetic background underlie the majority of the variation in collateral extent in mice, through alterations in collaterogenesis (embryonic collateral formation). In brain and other tissues, ≈80% of the variation in collateral extent among different mouse strains has been linked to a region on chromosome 7. We recently used congenic (CNG) fine mapping of C57BL/6 (B6, high extent) and BALB/cByJ (BC, low extent) mice to narrow the region to a 737 Kb locus, Dce1. Herein, we report the causal gene.

methodsWe used additional CNG mapping and knockout mice to narrow the number of candidate genes. Subsequent inspection identified a nonsynonymous single nucleotide polymorphism between B6 and BC within Rabep2 (rs33080487). We then created B6 mice with the BC single nucleotide polymorphism at this locus plus 3 other lines for predicted alteration or knockout of Rabep2 using gene editing.

resultsThe single amino acid change caused by rs33080487 accounted for the difference in collateral extent and infarct volume between B6 and BC mice attributable to Dce1. Mechanistically, variants of Rabep2 altered collaterogenesis during embryogenesis but had no effect on angiogenesis examined in vivo and in vitro. Rabep2 deficiency altered endosome trafficking known to be involved in VEGF-A→VEGFR2 signaling required for collaterogenesis.

conclusionsNaturally occurring variants of Rabep2 are major determinants of variation in collateral extent and stroke severity in mice.

Indexed as

AnimalsCerebrovascular CirculationCollateral CirculationDisease Models, AnimalMiceMice, 129 StrainMice, Inbred BALB CMice, Inbred C57BLMice, KnockoutSeverity of Illness IndexStrokeVesicular Transport ProteinsVesicular Transport Proteinsamino acidscollateral circulationendosomesgenetic backgroundstroke

Identifiers

PMID27811335
PMCPMC5134893
OpenAlexW2547662112

What OpenQuestion holds

Textmetadata
LicenceTDM
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.