Evidence map›Paper›PMID 21437254›Full record

ArticlePloS one2011

Apelin attenuates the osteoblastic differentiation of vascular smooth muscle cells.

Peng-Fei Shan, Ying Lu, Rong-Rong Cui, Yi Jiang, Ling-Qing Yuan, Er-Yuan Liao

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
6.5field-weighted citation impact, top 3% 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

31 citing papers in PubMed, 62 citations in OpenAlex.

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  18. Apelinergic System Structure and Function.Comprehensive Physiology · 2017
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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

6 authors at 2 institutions in 1 country.

Peng-Fei ShanDepartment of Endocrinology and Metabolism, the Second Affiliated Hospital ZheJiang University College of Medicine, Hangzhou, Zhejiang, People's Republic of China.
Ying Lu
Rong-Rong Cui
Yi Jiang
Ling-Qing Yuan
Er-Yuan Liao
Central South University · CNSecond Affiliated Hospital of Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vascular calcification, which results from a process osteoblastic differentiation of vascular smooth muscle cells (VSMCs), is a major risk factor for cardiovascular morbidity and mortality. Apelin is a recently discovered peptide that is the endogenous ligand for the orphan G-protein-coupled receptor, APJ. Several studies have identified the protective effects of apelin on the cardiovascular system. However, the effects and mechanisms of apelin on the osteoblastic differentiation of VSMCs have not been elucidated. Using a culture of calcifying vascular smooth muscle cells (CVMSCs) as a model for the study of vascular calcification, the relationship between apelin and the osteoblastic differentiation of VSMCs and the signal pathway involved were investigated. Alkaline phosphatase (ALP) activity and osteocalcin secretion were examined in CVSMCs. The involved signal pathway was studied using the extracellular signal-regulated kinase (ERK) inhibitor, PD98059, the phosphatidylinositol 3-kinase (PI3-K) inhibitor, LY294002, and APJ siRNA. The results showed that apelin inhibited ALP activity, osteocalcin secretion, and the formation of mineralized nodules. APJ protein was detected in CVSMCs, and apelin activated ERK and AKT (a downstream effector of PI3-K). Suppression of APJ with siRNA abolished the apelin-induced activation of ERK and Akt. Furthermore, inhibition of APJ expression, and the activation of ERK or PI3-K, reversed the effects of apelin on ALP activity. These results showed that apelin inhibited the osteoblastic differentiation of CVSMCs through the APJ/ERK and APJ/PI3-K/AKT signaling pathway. Apelin appears to play a protective role against arterial calcification.

Indexed as

Apelin ReceptorsCalcification, PhysiologicCell DifferentiationCells, CulturedExtracellular Signal-Regulated MAP KinasesGene Expression RegulationHumansIntercellular Signaling Peptides and ProteinsIntracellular SpaceMuscle, Smooth, VascularMyocytes, Smooth MuscleOsteoblastsPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReceptors, G-Protein-CoupledSignal Transductionapelin-13 peptideApelin ReceptorsAPLNR protein, humanExtracellular Signal-Regulated MAP KinasesIntercellular Signaling Peptides and ProteinsPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReceptors, G-Protein-Coupled

Identifiers

PMID21437254
PMCPMC3060913
OpenAlexW2066634056

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Registered trials

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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.