Evidence map›Paper›PMID 21659522›Full record

ArticleThe Journal of biological chemistry2011

Specificity protein-1 as a critical regulator of human cystathionine gamma-lyase in smooth muscle cells.

Guangdong Yang, Yanxi Pei, Huajian Teng, Qiuhui Cao, Rui Wang

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.3field-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

45 citing papers in PubMed, 81 citations in OpenAlex.

  1. Article
  2. Article
  3. Persulfidation of Human CystathionineAntioxidants (Basel, Switzerland) · 2024
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. The Pathophysiology of HBiomolecules · 2022
    Review
  11. Article
  12. Hydrogen Sulfide Actions in the Vasculature.Comprehensive Physiology · 2021
    Article
  13. The Hidden Role of Hydrogen Sulfide Metabolism in Cancer.International journal of molecular sciences · 2021
    Review
  14. Endothelium as a Source and Target of HAntioxidants (Basel, Switzerland) · 2021
    Review
  15. Review
  16. The Cardiovascular Effects of Hydrogen Sulfide: The Epigenetic Mechanisms.Advances in experimental medicine and biology · 2021
    Article
  17. Estrogen Receptors and Estrogen-Induced Uterine Vasodilation in Pregnancy.International journal of molecular sciences · 2020
    Review
  18. Article
  19. Hydrogen sulfide signaling in mitochondria and disease.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Review
  20. Estradiol-17β stimulates HJournal of cellular physiology · 2019
    Article
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

5 authors at 1 institution in 2 countries.

Guangdong YangSchool of Kinesiology, Lakehead University, Thunder Bay, Ontario P7B 5E1, Canada. gyang@lakeheadu.ca
Yanxi Pei
Huajian Teng
Qiuhui Cao
Rui Wang
Lakehead University · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Cystathionine γ-lyase (CSE) is the major enzyme in vascular smooth muscle cells (SMCs) that catalyzes the endogenous production of H(2)S. Phenotypic switching of SMCs is affected by endogenous H(2)S level and alterations of this switching may result in vascular disorders. To date, the mechanisms underlying the alteration of CSE expression and H(2)S production in vascular proliferative diseases have been unclear. In the present study, we found that serum deprivation induced SMC differentiation marker gene expressions and increased CSE expression and H(2)S production in cultured human aorta SMCs (HASMCs). Carotid artery ligation in mice resulted in enhanced neointima formation and down-regulation of CSE expression, suggesting an important role of CSE in SMC differentiation. Transient transfection of HASMCs with human CSE (hCSE) promoter/luciferase reporter revealed that the region between -226 to +140 base pair contains the core promoter for the hCSE gene. Deletion and mutation analysis demonstrated that two specificity protein-1 (Sp1) consensus binding sites were present in the core promoter region of the hCSE gene. Incubation of HASMCs with Sp1 binding inhibitor mithramycin inhibited CSE mRNA expression in a dose-dependent manner. Overexpression of Sp1 alone was sufficient to increase the activity of the hCSE core promoter and CSE protein expression. Chromatin immunoprecipitation assay showed that the binding of Sp1 to the hCSE promoter was increased in differentiated HASMCs compared with that in proliferated HASMCs. Exogenously applied H(2)S at 100 μM stimulated SMC differentiation, which was reversed by p38 MAPK inhibitor SB203580. These results suggest that transcript factor Sp1 is a critical regulator of the hCSE expression during SMC differentiation, and CSE/H(2)S system is essential for maintenance of SMC phenotype.

Indexed as

Air PollutantsAnimalsAntibiotics, AntineoplasticAntigens, DifferentiationCell DifferentiationCells, CulturedCystathionine gamma-LyaseDose-Response Relationship, DrugEnzyme InhibitorsGene Expression Regulation, EnzymologicHumansHydrogen SulfideImidazolesMiceMice, KnockoutMuscle ProteinsAir PollutantsAntibiotics, AntineoplasticAntigens, DifferentiationCystathionine gamma-LyaseEnzyme InhibitorsHydrogen SulfideImidazolesMuscle Proteinsp38 Mitogen-Activated Protein KinasesPlicamycinPyridinesRNA, MessengerSB 203580Sp1 Transcription Factor

Identifiers

PMID21659522
PMCPMC3143609
OpenAlexW2003613639

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.