Evidence map›Paper›PMID 34433297›Full record

ArticleArteriosclerosis, thrombosis, and vascular biology2021

Single-Cell RNA Sequencing Reveals Endothelial Cell Transcriptome Heterogeneity Under Homeostatic Laminar Flow.

Ziqing Liu, Dana L Ruter, Kaitlyn Quigley, Natalie T Tanke, Yuchao Jiang, Victoria L Bautch

Abstract read
In one paragraph

Article in Arteriosclerosis, thrombosis, and vascular biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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  6. Article
  7. Review
  8. Dissecting endothelial cell heterogeneity with new tools.Cell regeneration (London, England) · 2025
    Review
  9. Frontiers in cellular and infection microbiology · 2025
    Review
  10. Review
  11. Article
  12. Article
  13. Mechanotransduction Circuits in Human Pathobiology.International journal of molecular sciences · 2024
    Article
  14. Single cell 'omic profiles of human aortic endothelial cellsbioRxiv : the preprint server for biology · 2024
    Article
  15. Article
  16. Review
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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.

Ziqing LiuIntegrative Program for Biological & Genome Sciences (Z.L., D.L.R., V.L.B.).
Dana L RuterIntegrative Program for Biological & Genome Sciences (Z.L., D.L.R., V.L.B.).
Kaitlyn QuigleyDepartment of Chemistry (K.Q.).
Natalie T TankeCurriculum in Cell Biology and Physiology (N.T.T., V.L.B.).
Yuchao JiangLineberger Comprehensive Cancer Center (D.L.R., Y.J., V.L.B.).
Victoria L BautchIntegrative Program for Biological & Genome Sciences (Z.L., D.L.R., V.L.B.).ORCID 0000-0003-2135-5153

Funding

Tissue Procurement & PathologyP50CA058223 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI CHARLES M PEROU · 1992 to 2026
$59.3M
MOLECULAR AND CELLULAR CONTROL OF ANGIOGENESISR35HL139950 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BAUTCH, VICTORIA L · 2018 to 2024
$6.4M
New Roles for VEGFR1 in AngiogenesisR01GM129074 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI MAC GABHANN, FEILIM C · 2018 to 2021
$2.6M
Statistical Methods for Bulk-Tissue and Single-Cell Multi-Omics IntegrationR35GM138342 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Yuchao Jiang · 2020 to 2026
$2.3M
NCI NIH HHS P50 CA058223NHLBI NIH HHS R35 HL139950NIGMS NIH HHS R01 GM129074NIGMS NIH HHS R35 GM138342
6 · The paper itself

Abstract

Objective: Endothelial cells (ECs) that form the innermost layer of all vessels exhibit heterogeneous cell behaviors and responses to pro-angiogenic signals that are critical for vascular sprouting and angiogenesis. Once vessels form, remodeling and blood flow lead to EC quiescence, and homogeneity in cell behaviors and signaling responses. These changes are important for the function of mature vessels, but whether and at what level ECs regulate overall expression heterogeneity during this transition is poorly understood. Here, we profiled EC transcriptomic heterogeneity, and expression heterogeneity of selected proteins, under homeostatic laminar flow. Approach and Results: Single-cell RNA sequencing and fluorescence microscopy were used to characterize heterogeneity in RNA and protein gene expression levels of human ECs under homeostatic laminar flow compared to nonflow conditions. Analysis of transcriptome variance, Gini coefficient, and coefficient of variation showed that more genes increased RNA heterogeneity under laminar flow relative to genes whose expression became more homogeneous, although small subsets of cells did not follow this pattern. Analysis of a subset of genes for relative protein expression revealed little congruence between RNA and protein heterogeneity changes under flow. In contrast, the magnitude of expression level changes in RNA and protein was more coordinated among ECs in flow versus nonflow conditions. Conclusions: ECs exposed to homeostatic laminar flow showed overall increased heterogeneity in RNA expression levels, while expression heterogeneity of selected cognate proteins did not follow RNA heterogeneity changes closely. These findings suggest that EC homeostasis is imposed post-transcriptionally in response to laminar flow.

Indexed as

Gene Expression ProfilingMechanotransduction, CellularRNA-SeqSingle-Cell AnalysisTranscriptomeAnimalsCells, CulturedHumansHuman Umbilical Vein Endothelial CellsMiceMicroscopy, FluorescenceRegional Blood FlowStress, Mechanicalendothelial cellsgene expressionhemodynamicsmicroscopy, fluorescenceRNA-seqsingle-cell analysistranscriptome

Identifiers

PMID34433297
PMCPMC8454496

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Registered trials

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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.