Evidence map›Paper›PMID 34670409›Full record

ArticleArteriosclerosis, thrombosis, and vascular biology2021

CircSOD2: A Novel Regulator for Smooth Muscle Proliferation and Neointima Formation.

Xiaohan Mei, Xiao-Bing Cui, Yiran Li, Shi-You Chen

Open access · bronzeAbstract 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 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

14 citing papers in PubMed, 21 citations in OpenAlex.

  1. Beyond linear: How circRNAs twist and turn Notch signaling.Journal of cell communication and signaling · 2025
    Review
  2. Review
  3. Article
  4. YTH NCells · 2025
    Article
  5. Review
  6. Circular RNACells · 2024
    Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. The Landscape of Circular RNAs in Cardiovascular Diseases.International journal of molecular sciences · 2023
    Review
  12. Article
  13. Vascular Stem/Progenitor Cells in Vessel Injury and Repair.Frontiers in cardiovascular medicine · 2022
    Review
  14. 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

4 authors at 2 institutions in 1 country.

Xiaohan MeiDepartments of Surgery (X.M., X.-B.C., S.-Y.C.), University of Missouri School of Medicine, Columbia.ORCID 0000-0003-4677-4653
Xiao-Bing CuiDepartments of Surgery (X.M., X.-B.C., S.-Y.C.), University of Missouri School of Medicine, Columbia.
Yiran LiInstitute of Bioinformatics (Y.L.), University of Georgia, Athens.
Shi-You ChenDepartments of Surgery (X.M., X.-B.C., S.-Y.C.), University of Missouri School of Medicine, Columbia.ORCID 0000-0002-0297-8649
University of Georgia · USUniversity of Missouri · US

Funding

Fortilin, p53, and atherosclerosisR01HL117247 · NHLBI · UNIVERSITY OF WASHINGTON · PI CHEN, SHIYOU, FUJISE, KEN · 2013 to 2023
$4.7M
Novel mechanism of smooth muscle phenotypic modulation and vascular remodelingR01HL119053 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI CHEN, SHIYOU · 2014 to 2023
$3.8M
Dedicator of cytokinesis 2 in abdominal aortic aneurysmR01HL147313 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI CHEN, SHIYOU · 2019 to 2022
$2.1M
Smad2 in vascular smooth muscle homeostasisR01HL135854 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI CHEN, SHIYOU · 2017 to 2020
$2.0M
NHLBI NIH HHS R01 HL117247NHLBI NIH HHS R01 HL119053NHLBI NIH HHS R01 HL135854NHLBI NIH HHS R01 HL147313
6 · The paper itself

Abstract

objectiveVascular smooth muscle cell (SMC) proliferation contributes to neointima formation following vascular injury. Circular RNA-a novel type of noncoding RNA with closed-loop structure-exhibits cell- and tissue-specific expression patterns. However, the role of circular RNA in SMC proliferation and neointima formation is largely unknown. The objective of this study is to investigate the role and mechanism of circSOD2 in SMC proliferation and neointima formation. Approach and Results: Circular RNA profiling of human aortic SMCs revealed that PDGF (platelet-derived growth factor)-BB up- and downregulated numerous circular RNAs. Among them, circSOD2, derived from back-splicing event of SOD2 (superoxide dismutase 2), was significantly enriched. Knockdown of circSOD2 by short hairpin RNA blocked PDGF-BB-induced SMC proliferation. Inversely, circSOD2 ectopic expression promoted SMC proliferation. Mechanistically, circSOD2 acted as a sponge for miR-206, leading to upregulation of NOTCH3 (notch receptor 3) and NOTCH3 signaling, which regulates cyclin D1 and CDK (cyclin-dependent kinase) 4/6. In vivo studies showed that circSOD2 was induced in neointima SMCs in balloon-injured rat carotid arteries. Importantly, knockdown of circSOD2 attenuated injury-induced neointima formation along with decreased neointimal SMC proliferation.

conclusionsCircSOD2 is a novel regulator mediating SMC proliferation and neointima formation following vascular injury. Therefore, circSOD2 could be a potential therapeutic target for inhibiting the development of proliferative vascular diseases.

Indexed as

AnimalsCarotid Artery InjuriesCell MovementCell ProliferationCells, CulturedDisease Models, AnimalMaleMuscle, Smooth, VascularNeointimaRatsRats, Sprague-DawleySignal TransductionSuperoxide DismutaseSuperoxide Dismutase 2Vascular RemodelingSuperoxide DismutaseSuperoxide Dismutase 2becaplerminmuscle, smoothneointimasuperoxide dismutasevascular system injuries

Identifiers

PMID34670409
PMCPMC8612990
OpenAlexW3207300766

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.