Evidence map›Paper›PMID 21228273›Full record

ArticleThe Journal of biological chemistry2011

Hyaluronan synthesis is inhibited by adenosine monophosphate-activated protein kinase through the regulation of HAS2 activity in human aortic smooth muscle cells.

Davide Vigetti, Moira Clerici, Sara Deleonibus, Evgenia Karousou, Manuela Viola, Paola Moretto, Paraskevi Heldin, Vincent C Hascall, Giancarlo De Luca, Alberto Passi

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 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

53 citing papers in PubMed, 118 citations in OpenAlex.

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  4. TargetingbioRxiv : the preprint server for biology · 2025
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  20. Cell Energy Metabolism and Hyaluronan Synthesis.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2021
    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

10 authors at 3 institutions in 3 countries.

Davide VigettiFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy.
Moira ClericiFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy.
Sara DeleonibusFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy.
Evgenia KarousouFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy.
Manuela ViolaFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy.
Paola MorettoFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy.
Paraskevi Heldinthe Ludwig Institute for Cancer Research, Uppsala University Biomedical Center, SE-75124 Uppsala, Sweden, and.
Vincent C Hascallthe Department of Biomedical Engineering, The Cleveland Clinic, Cleveland, Ohio 44195.
Giancarlo De LucaFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy.
Alberto PassiFrom the Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi dell'Insubria, Via J. H. Dunant 5, 21100 Varese, Italy,. Electronic address: alberto.passi@uninsubria.it.
University of Insubria · ITCleveland Clinic · USUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hyaluronan (HA) is an extracellular matrix glycosaminoglycan (GAG) involved in cell motility, proliferation, tissue remodeling, development, differentiation, inflammation, tumor progression, and invasion and controls vessel thickening in cardiovascular diseases. Therefore, the control of HA synthesis could permit the fine-tuning of cell behavior, but the mechanisms that regulate HA synthesis are largely unknown. Recent studies suggest that the availability of the nucleotide-sugar precursors has a critical role. Because the formation of UDP-sugars is a highly energetically demanding process, we have analyzed whether the energy status of the cell could control GAG production. AMP-activated protein kinase (AMPK) is the main ATP/AMP sensor of mammalian cells, and we mimicked an energy stress by treating human aortic smooth muscle cells (AoSMCs) with the AMPK activators 5-aminoimidazole-4-carboxamide-1-β-D-ribofuranoside and metformin. Under these conditions, HA synthesis, but not that of the other GAGs, was greatly reduced. We confirmed the inhibitory effect of AMPK using a specific inhibitor and knock-out cell lines. We found that AMPK phosphorylated Thr-110 of human HAS2, which inhibits its enzymatic activity. In contrast, the other two HAS isoenzymes (HAS1 and HAS3) were not modified by the kinase. The reduction of HA decreased the ability of AoSMCs to proliferate, migrate, and recruit immune cells, thereby reducing the pro-atherosclerotic AoSMC phenotype. Interestingly, such effects were not recovered by treatment with exogenous HA, suggesting that AMPK can block the pro-atherosclerotic signals driven by HA by interaction with its receptors.

Indexed as

AMP-Activated Protein KinasesAortaCell LineCell MovementCell ProliferationGene Knockdown TechniquesGlucuronosyltransferaseHumansHyaluronan SynthasesHyaluronic AcidMuscle, Smooth, VascularMyocytes, Smooth MuscleSignal TransductionStress, PhysiologicalAMP-Activated Protein KinasesGlucuronosyltransferaseHAS2 protein, humanHyaluronan SynthasesHyaluronic Acid

Identifiers

PMID21228273
PMCPMC3048678
OpenAlexW1979877398

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.