Evidence map›Paper›PMID 20978008›Full record

ArticleCardiovascular research2011

O-GlcNAcylation contributes to the vascular effects of ET-1 via activation of the RhoA/Rho-kinase pathway.

Victor V Lima, Fernanda R Giachini, Fernando S Carneiro, Maria Helena C Carvalho, Zuleica B Fortes, R Clinton Webb, Rita C Tostes

Open access · bronzeAbstract read
In one paragraph

Article in Cardiovascular research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

30 citing papers in PubMed, 65 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. The O-GlcNAc dichotomy: when does adaptation become pathological?Clinical science (London, England : 1979) · 2023
    Review
  10. Article
  11. O-Linked β-Frontiers in immunology · 2022
    Review
  12. Article
  13. Role ofPhysiological reviews · 2021
    Review
  14. Regulation of cardiac O-GlcNAcylation: More than just nutrient availability.Biochimica et biophysica acta. Molecular basis of disease · 2020
    Review
  15. Article
  16. Article
  17. Article
  18. Checkpoint kinase 1-induced phosphorylation ofThe Journal of biological chemistry · 2017
    Article
  19. Article
  20. Protein O-GlcNAcylation and cardiovascular (patho)physiology.The Journal of biological chemistry · 2014
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Victor V LimaDepartment of Physiology, Medical College of Georgia, 1120 Fifteenth Street, CA-3141, Augusta, GA 30912-3000, USA. vlima@mcg.edu
Fernanda R Giachini
Fernando S Carneiro
Maria Helena C Carvalho
Zuleica B Fortes
R Clinton Webb
Rita C Tostes
Universidade de São Paulo · BRAugusta University · US

Funding

Vascular Rho-kinase Signaling in Angiotensin II hypertenP01HL074167 · NHLBI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI WEBB, R CLINTON · 2004 to 2008
$10.5M
Nitric Oxide Inhibits RhoA/Rho-kinase in Penile ErectionR01HL071138 · NHLBI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI WEBB, R CLINTON · 2003 to 2011
$2.9M
TNF-alpha: a key player in erectile (dys)functionR01DK083685 · NIDDK · AUGUSTA UNIVERSITY · PI WEBB, R CLINTON · 2009 to 2012
$1.4M
NHLBI NIH HHS HL-74167NHLBI NIH HHS P01 HL074167NHLBI NIH HHS R01 HL071138NIDDK NIH HHS R01 DK083685
6 · The paper itself

Abstract

aimsGlycosylation with β-N-acetylglucosamine (O-GlcNAcylation) is one of the most complex post-translational modifications. The cycling of O-GlcNAc is controlled by two enzymes: UDP-NAc transferase (OGT) and O-GlcNAcase (OGA). We recently reported that endothelin-1 (ET-1) augments vascular levels of O-GlcNAcylated proteins. Here we tested the hypothesis that O-GlcNAcylation contributes to the vascular effects of ET-1 via activation of the RhoA/Rho-kinase pathway. METHODS AND

resultsIncubation of vascular smooth muscle cells (VSMCs) with ET-1 (0.1 μM) produces a time-dependent increase in O-GlcNAc levels. ET-1-induced O-GlcNAcylation is not observed when VSMCs are previously transfected with OGT siRNA, treated with ST045849 (OGT inhibitor) or atrasentan (ET(A) antagonist). ET-1 as well as PugNAc (OGA inhibitor) augmented contractions to phenylephrine in endothelium-denuded rat aortas, an effect that was abolished by the Rho kinase inhibitor Y-27632. Incubation of VSMCs with ET-1 increased expression of the phosphorylated forms of myosin phosphatase target subunit 1 (MYPT-1), protein kinase C-potentiated protein phosphatase 1 inhibitor protein (protein kinase C-potentiated phosphatase inhibitor-17), and myosin light chain (MLC) and RhoA expression and activity, and this effect was abolished by both OGT siRNA transfection or OGT inhibition and atrasentan. ET-1 also augmented expression of PDZ-Rho GEF (guanine nucleotide exchange factor) and p115-Rho GEF in VSMCs and this was prevented by OGT siRNA, ST045849, and atrasentan.

conclusionWe suggest that ET-1 augments O-GlcNAcylation and this modification contributes to increased vascular contractile responses via activation of the RhoA/Rho-kinase pathway.

Indexed as

AcetylglucosamineAcylationAnimalsAorta, ThoracicCardiovascular DiseasesCells, CulturedEndothelin-1MaleMuscle, Smooth, VascularPhosphorylationRatsRats, WistarrhoA GTP-Binding Proteinrho-Associated KinasesSignal TransductionVasoconstrictionAcetylglucosamineEndothelin-1rhoA GTP-Binding Proteinrho-Associated Kinases

Identifiers

PMID20978008
PMCPMC3028974
OpenAlexW2057675623

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.