Evidence map›Paper›PMID 21383775›Full record

ArticleCell research2011

HDAC2 phosphorylation-dependent Klf5 deacetylation and RARα acetylation induced by RAR agonist switch the transcription regulatory programs of p21 in VSMCs.

Bin Zheng, Mei Han, Ya-Nan Shu, Ying-Jie Li, Sui-Bing Miao, Xin-Hua Zhang, Hui-Jing Shi, Tian Zhang, Jin-Kun Wen

Expression of concernOpen access · bronzeAbstract read
In one paragraph

Article in Cell research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It carries an expression of concern. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 80 citations in OpenAlex.

  1. Pooled it
  2. Increased ATCell death & disease · 2020
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  13. Krüppel-like factor (KLF)5: An emerging foe of cardiovascular health.Journal of molecular and cellular cardiology · 2022
    Review
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  17. Review
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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.

Bin ZhengDepartment of Biochemistry and Molecular Biology, Key Laboratory of Neural and Vascular Biology, Ministry of Education, Hebei Medical University, No. 361, Zhongshan East Road, Shijiazhuang 050017, China.
Mei Han
Ya-Nan Shu
Ying-Jie Li
Sui-Bing Miao
Xin-Hua Zhang
Hui-Jing Shi
Tian Zhang
Jin-Kun Wen
Hebei Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Abnormal proliferation of vascular smooth muscle cells (VSMCs) occurs in hypertension, atherosclerosis and restenosis after angioplasty, leading to pathophysiological vascular remodeling. As an important growth arrest gene, p21 plays critical roles in vascular remodeling. Regulation of p21 expression by retinoic acid receptor (RAR) and its ligand has important implications for control of pathological vascular remodeling. Nevertheless, the mechanism of RAR-mediated p21 expression in VSMCs remains poorly understood. Here, we show that, under basal conditions, RARα forms a complex with histone deacetylase 2 (HDAC2) and Krüppel-like factor 5 (Klf5) at the p21 promoter to inhibit its expression. Upon RARα agonist stimulation, HDAC2 is phosphorylated by CK2α. Phosphorylation of HDAC2, on the one hand, promotes its dissociation from RARα, thus allowing the liganded-RARα to interact with co-activators; on the other hand, it increases its interaction with Klf5, thus leading to deacetylation of Klf5. Deacetylation of Klf5 facilitates its dissociation from the p21 promoter, relieving its repressive effect on the p21 promoter. Interference with HDAC2 phosphorylation by either CK2α knockdown or the use of phosphorylation-deficient mutant of HDAC2 prevents the dissociation of Klf5 from the p21 promoter and impairs RAR agonist-induced p21 activation. Our results reveal a novel mechanism involving a phosphorylation-deacetylation cascade that functions to remove the basal repression complex from the p21 promoter upon RAR agonist treatment, allowing for optimum agonist-induced p21 expression.

Indexed as

AcetylationAnimalsCasein Kinase IICell LineCyclin-Dependent Kinase Inhibitor p21Gene Expression RegulationHistone Deacetylase 2Kruppel-Like Transcription FactorsMaleMultiprotein ComplexesMuscle, Smooth, VascularMutationMyocytes, Smooth MusclePhosphorylationPromoter Regions, GeneticRatsCasein Kinase IICdkn1a protein, ratCyclin-Dependent Kinase Inhibitor p21Hdac2 protein, ratHistone Deacetylase 2Klf5 protein, ratKruppel-Like Transcription FactorsMultiprotein ComplexesRara protein, ratReceptors, Retinoic AcidRepressor ProteinsRetinoic Acid Receptor alpha

Identifiers

PMID21383775
PMCPMC3193446
OpenAlexW2019874210

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.