Evidence map›Paper›PMID 32750106›Full record

ArticleCardiovascular research2021

Role of R-spondin 2 in arterial lymphangiogenesis and atherosclerosis.

Bhupesh Singla, Hui-Ping Lin, Alex Chen, WonMo Ahn, Pushpankur Ghoshal, Mary Cherian-Shaw, Joseph White, Brian K Stansfield, Gábor Csányi

Open access · greenAbstract read
In one paragraph

Article in Cardiovascular research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.3field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 46 citations in OpenAlex.

  1. Myeloid Cell-Specific Deletion of LGR4 Suppresses Atherosclerotic Lesion Formation.Arteriosclerosis, thrombosis, and vascular biology · 2026
    Article
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  5. Article
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  9. Article
  10. Nidogen 2 Overexpression Promotes Hepatosteatosis and Atherosclerosis.International journal of molecular sciences · 2024
    Article
  11. Lymphangiogenesis: A new strategy for heart disease treatment (Review).International journal of molecular medicine · 2024
    Review
  12. Review
  13. Observational
  14. Article
  15. Review
  16. Matricellular proteins in atherosclerosis development.Matrix biology : journal of the International Society for Matrix Biology · 2023
    Review
  17. Article
  18. Review
  19. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Bhupesh SinglaVascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.ORCID 0000-0003-2752-6849
Hui-Ping LinVascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.ORCID 0000-0002-3136-9543
Alex ChenMedical Scholars Program, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.ORCID 0000-0001-5662-8188
WonMo AhnVascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.ORCID 0000-0001-9735-8022
Pushpankur GhoshalVascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.
Mary Cherian-ShawVascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.
Joseph WhiteDepartment of Pathology, Medical College of Georgia at Augusta University, 1120 15th Street, BF 104, Augusta, GA 30912, USA.
Brian K StansfieldVascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.ORCID 0000-0002-1105-8895
Gábor CsányiVascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd., Augusta, GA, 30912, USA.
Augusta University · US

Funding

Inflammation and retinopathy of prematurityR01EY029318 · NEI · AUGUSTA UNIVERSITY · PI STANSFIELD, BRIAN KEVIN · 2019 to 2023
$2.2M
Lipid macropinocytosis: a novel target in atherosclerotic cardiovascular diseaseR01HL139562 · NHLBI · AUGUSTA UNIVERSITY · PI CSANYI, GABOR · 2018 to 2022
$1.9M
A Novel Role of Macrophage TSP1-CD47 Signaling in AtherosclerosisR00HL114648 · NHLBI · AUGUSTA UNIVERSITY · PI CSANYI, GABOR · 2015 to 2017
$747k
Regulation of Lymphangiogenesis by Thrombospondin 1K99HL146954 · NHLBI · AUGUSTA UNIVERSITY · PI SINGLA, BHUPESH · 2020 to 2021
$232k
NEI NIH HHS R01 EY029318NHLBI NIH HHS K99 HL146954NHLBI NIH HHS R00 HL114648NHLBI NIH HHS R01 HL139562
6 · The paper itself

Abstract

aimsImpaired lymphatic drainage of the arterial wall results in intimal lipid accumulation and atherosclerosis. However, the mechanisms regulating lymphangiogenesis in atherosclerotic arteries are not well understood. Our studies identified elevated levels of matrix protein R-spondin 2 (RSPO2) in atherosclerotic arteries. In this study, we investigated the role of RSPO2 in lymphangiogenesis, arterial cholesterol efflux into lesion-draining lymph nodes (LNs) and development of atherosclerosis. METHODS AND

resultsThe effect of RSPO2 on lymphangiogenesis was investigated using human lymphatic endothelial cells (LEC) in vitro and implanted Matrigel plugs in vivo. Cellular and molecular approaches, pharmacological agents, and siRNA silencing of RSPO2 receptor LGR4 were used to investigate RSPO2-mediated signalling in LEC. In vivo low-density lipoprotein (LDL) tracking and perivascular blockade of RSPO2-LGR4 signalling using LGR4-extracellular domain (ECD) pluronic gel in hypercholesterolemic mice were utilized to investigate the role of RSPO2 in arterial reverse cholesterol transport and atherosclerosis. Immunoblotting and imaging experiments demonstrated increased RSPO2 expression in human and mouse atherosclerotic arteries compared to non-atherosclerotic controls. RSPO2 treatment inhibited lymphangiogenesis both in vitro and in vivo. LGR4 silencing and inhibition of RSPO2-LGR4 signalling abrogated RSPO2-induced inhibition of lymphangiogenesis. Mechanistically, we found that RSPO2 suppresses PI3K-AKT-endothelial nitric oxide synthase (eNOS) signalling via LGR4 and inhibits activation of the canonical Wnt-β-catenin pathway. ApoE-/- mice treated with LGR4-ECD developed significantly less atherosclerosis compared with control treatment. Finally, increased arterial lymphatic vessel density and improved lymphatic drainage of fluorescently labelled LDL to deep cervical LNs were observed in LGR4-ECD-treated mice.

conclusionThese findings demonstrate that RSPO2 inhibits lymphangiogenesis via LGR4 and downstream impairment of AKT-eNOS-nitric oxide signalling. These results may also inform new therapeutic strategies to promote lymphangiogenesis and improve cholesterol efflux from atherosclerotic arteries.

Indexed as

LymphangiogenesisAgedAged, 80 and overAnimalsArteriesAtherosclerosisCells, CulturedDisease Models, AnimalEndothelial CellsFemaleHumansIntercellular Signaling Peptides and ProteinsLymphatic VesselsMaleMiceMice, Inbred C57BLIntercellular Signaling Peptides and ProteinsLGR4 protein, humanLGR4 protein, mouseNitric Oxide Synthase Type IIINOS3 protein, humanNos3 protein, mouseProto-Oncogene Proteins c-aktReceptors, G-Protein-CoupledRspo2 protein, humanRSPO2 protein, mouseR-SpondinsThrombospondinsAtherosclerosisLGR4LymphangiogenesisLymphatic vesselNitric oxideRSPO2

Identifiers

PMID32750106
PMCPMC8152716
OpenAlexW3047196707

What OpenQuestion holds

Textmetadata
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.