Evidence map›Paper›PMID 34512872›Full record

ArticleOxidative medicine and cellular longevity2021

MKP-1 Overexpression Reduces Postischemic Myocardial Damage through Attenuation of ER Stress and Mitochondrial Damage.

Xiaoling Hou, Lijun Li, Si Chen, Cheng Ge, Mingzhi Shen, Zhenhong Fu

RetractedOpen access · hybridAbstract readRetracted Publication
In one paragraph

Article in Oxidative medicine and cellular longevity, 2021. 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 It has been retracted, and should not be counted.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 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Xiaoling HouSenior Department of Cardiology, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, China.ORCID https://orcid.org/0000-0002-2950-3010
Lijun LiSenior Department of Cardiology, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, China.
Si ChenDepartment of Cardiology, The First Medical Center of People's Liberation Army General Hospital, China.
Cheng GeDepartment of Cardiology, The First Medical Center of People's Liberation Army General Hospital, China.
Mingzhi ShenDepartment of Cardiology, Hainan Hospital of Chinese People's Liberation Army General Hospital, Sanya, Hainan 572013, China.ORCID https://orcid.org/0000-0002-7208-4982
Zhenhong FuSenior Department of Cardiology, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, China.ORCID https://orcid.org/0000-0002-2784-7629
People's Liberation Army No. 150 Hospital · CNHainan 301 Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondrial dysfunction and endoplasmic reticulum (ER) stress contribute to postischemic myocardial damage, but the upstream regulatory mechanisms have not been identified. In this study, we analyzed the role of mitogen-activated protein kinase (MAPK) phosphatase 1 (MKP-1) in the regulation of mitochondrial function and ER stress in hypoxic cardiomyocytes. Our results show that MKP-1 overexpression sustains viability and reduces hypoxia-induced apoptosis among H9C2 cardiomyocytes. MKP-1 overexpression attenuates ER stress and expression of ER stress genes and improves mitochondrial function in hypoxia-treated H9C2 cells. MKP-1 overexpression also increases ATP production and mitochondrial respiration and attenuates mitochondrial oxidative damage in hypoxic cardiomyocytes. Moreover, our results demonstrate that ERK and JNK are the downstream signaling targets of MKP-1 and that MKP-1 overexpression activates ERK, while it inhibits JNK. Inhibition of ERK reduces the ability of MKP-1 to preserve mitochondrial function and ER homeostasis in hypoxic cardiomyocytes. These results show that MKP-1 plays an essential role in the regulation of mitochondrial function and ER stress in hypoxic H9C2 cardiomyocytes through normalization of the ERK pathway and suggest that MKP-1 may serve as a novel target for the treatment of postischemic myocardial injury.

Indexed as

CardiomyopathiesDual Specificity Phosphatase 1Endoplasmic Reticulum StressHumansMitochondriaMyocytes, CardiacDual Specificity Phosphatase 1DUSP1 protein, human

Identifiers

PMID34512872
PMCPMC8433005
OpenAlexW3197519217

What Socratic 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 Socratic graph.