Evidence map›Paper›PMID 28225870›Full record

ArticleBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica2017

PDK2 promotes chondrogenic differentiation of mesenchymal stem cells by upregulation of Sox6 and activation of JNK/MAPK/ERK pathway.

H Wang, X B Shan, Y J Qiao

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 24 citations in OpenAlex.

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  14. [Effect of superparamagnetic iron oxide on differentiation of rat bone marrow stem cells into chondrocytes in vitro].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2017
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 1 country.

H WangSecond Department of Orthopedics, Baodi Clinical College, Tianjin Medical University, Tianjin, China.
X B ShanSecond Department of Orthopedics, The First People's Hospital of Yibin, Yibin, China.
Y J QiaoFirst Department of Orthopedics, 4th (Xing Yuan) Hospital of Yulin, Yulin, China.
Second People’s Hospital of Yibin · CNTianjin Medical University · CNYulin Orthopedics Hospital of Chinese and Western Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was undertaken to clarify the role and mechanism of pyruvate dehydrogenase kinase isoform 2 (PDK2) in chondrogenic differentiation of mesenchymal stem cells (MSCs). MSCs were isolated from femurs and tibias of Sprague-Dawley rats, weighing 300-400 g (5 females and 5 males). Overexpression and knockdown of PDK2 were transfected into MSCs and then cell viability, adhesion and migration were assessed. Additionally, the roles of aberrant PDK2 in chondrogenesis markers SRY-related high mobility group-box 6 (Sox6), type ΙΙ procollagen gene (COL2A1), cartilage oligomeric matrix protein (COMP), aggrecan (AGC1), type ΙX procollagen gene (COL9A2) and collagen type 1 alpha 1 (COL1A1) were measured by quantitative reverse-transcription polymerase chain reaction (qRT-PCR). The expressions of c-Jun N-terminal kinase (JNK), p38 mitogen-activated protein kinase (MAPK) and extracellular regulated protein kinase (ERK) were measured. Overexpressing PDK2 promoted cell viability, adhesion and inhibited cell migration in MSCs (all P<0.05). qRT-PCR assay showed a potent increase in the mRNA expressions of all chondrogenesis markers in response to overexpressing PDK2 (P<0.01 or P<0.05). PDK2 overexpression also induced a significant accumulation in mRNA and protein expressions of JNK, p38MAPK and ERK in MSCs compared to the control (P<0.01 or P<0.05). Meanwhile, silencing PDK2 exerted the opposite effects on MSCs. This study shows a preliminary positive role and potential mechanisms of PDK2 in chondrogenic differentiation of MSCs. It lays the theoretical groundwork for uncovering the functions of PDK2 and provides a promising basis for repairing cartilage lesions in osteoarthritis.

Indexed as

AnimalsCell DifferentiationChondrogenesisCollagen Type I, alpha 1 ChainFemaleJNK Mitogen-Activated Protein KinasesMaleMAP Kinase Signaling SystemMesenchymal Stem CellsProtein Serine-Threonine KinasesPyruvate Dehydrogenase Acetyl-Transferring KinaseRatsRats, Sprague-DawleySOXE Transcription FactorsTranscriptional ActivationUp-RegulationCol1a1 protein, ratCollagen Type I, alpha 1 ChainJNK Mitogen-Activated Protein KinasesPdk2 protein, ratProtein Serine-Threonine KinasesPyruvate Dehydrogenase Acetyl-Transferring KinaseSOXE Transcription Factors

Identifiers

PMID28225870
PMCPMC5343558
OpenAlexW2590774543

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.