Evidence map›Paper›PMID 31160554›Full record

ArticleExperimental & molecular medicine2019

Peroxiredoxin II negatively regulates BMP2-induced osteoblast differentiation and bone formation via PP2A Cα-mediated Smad1/5/9 dephosphorylation.

Kyeong-Min Kim, Do-Young Kim, Dong-Seok Lee, Jung-Woo Kim, Jeong-Tae Koh, Eun-Jung Kim, Won-Gu Jang

Open access · goldAbstract read
In one paragraph

Article in Experimental & molecular medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 24% 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, 21 citations in OpenAlex.

  1. Review
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  12. Knockout Mouse Models for Peroxiredoxins.Antioxidants (Basel, Switzerland) · 2020
    Review
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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

7 authors at 3 institutions in 1 country.

Kyeong-Min KimDepartment of Biotechnology, School of Engineering, Daegu University, Gyeongbuk, 38453, Republic of Korea.
Do-Young KimDepartment of Biotechnology, School of Engineering, Daegu University, Gyeongbuk, 38453, Republic of Korea.
Dong-Seok LeeCollege of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea.
Jung-Woo KimDepartment of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
Jeong-Tae KohDepartment of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
Eun-Jung KimResearch Institute of Anti-Aging, Daegu University, Gyeongbuk, 38453, Republic of Korea. ejkim4164@knu.ac.kr.
Won-Gu JangDepartment of Biotechnology, School of Engineering, Daegu University, Gyeongbuk, 38453, Republic of Korea. jangwg@daegu.ac.kr.
Daegu University · KRChonnam National University · KRKyungpook National University · KR

Funding

National Research Foundation of Korea (NRF) 2017R1D1A1B03030274National Research Foundation of Korea (NRF) NRF-2016R1D1A1B03930733
6 · The paper itself

Abstract

Peroxiredoxin II (Prx II), an antioxidant enzyme in the Prx family, reduces oxidative stress by decreasing the intracellular ROS levels. Osteoblast differentiation is promoted by bone morphogenetic protein 2 (BMP2), which upregulates the expression of osteoblast differentiation marker genes, through Smad1/5/9 phosphorylation. We found that Prx II expression was increased by a high dose of lipopolysaccharide (LPS) but was not increased by a low dose of LPS. Prx II itself caused a decrease in the osteogenic gene expression, alkaline phosphatase (ALP) activity, and Smad1/5/9 phosphorylation induced by BMP2. In addition, BMP2-induced osteogenic gene expression and ALP activity were higher in Prx II knockout (KO) cells than they were in wild-type (WT) cells. These inhibitory effects were mediated by protein phosphatase 2A Cα (PP2A Cα), which was increased and is known to induce the dephosphorylation of Smad1/5/9. The overexpression of Prx II increased the expression of PP2A Cα, and PP2A Cα was not expressed in Prx II KO cells. Moreover, PP2A Cα reduced the level of BMP2-induced osteogenic gene expression and Smad1/5/9 phosphorylation. LPS inhibited BMP2-induced Smad1/5/9 phosphorylation and the suppressed phosphorylation was restored by the PP2A inhibitor okadaic acid (OA). Bone phenotype analyses using microcomputed tomography (μCT) revealed that the Prx II KO mice had higher levels of bone mass than the levels of the WT mice. We hypothesize that Prx II has a negative role in osteoblast differentiation through the PP2A-dependent dephosphorylation of Smad1/5/9.

Indexed as

AnimalsBone Morphogenetic Protein 2Cell DifferentiationCell LineCells, CulturedMaleMice, Inbred C57BLOsteoblastsOsteogenesisPeroxiredoxinsPhosphorylationProtein Phosphatase 2Smad ProteinsBmp2 protein, mouseBone Morphogenetic Protein 2PeroxiredoxinsProtein Phosphatase 2Smad Proteins

Identifiers

PMID31160554
PMCPMC6546700
OpenAlexW2948653004

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LicenceCC BY
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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.