Evidence map›Paper›PMID 34095014›Full record

ArticleJournal of lipid and atherosclerosis2021

Phosphorylation in Novel Mitochondrial Creatine Kinase Tyrosine Residues Render Cardioprotection against Hypoxia/Reoxygenation Injury.

Nammi Park, Jubert Marquez, Maria Victoria Faith Garcia, Ippei Shimizu, Sung Ryul Lee, Hyoung Kyu Kim, Jin Han

Open access · diamondAbstract read
In one paragraph

Article in Journal of lipid and atherosclerosis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. MDH2 S246 phosphorylation protects mitochondria against hypoxia/reoxygenation injury due to acetate/lactate metabolism.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2026
    Article
  2. NOR-1 Overexpression Elevates Myoglobin Expression via PERM1 and Enhances Mitochondrial Function and Endurance in Skeletal Muscles of Aged Mice.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  3. Review
  4. Cytosolic nucleic acid sensing and mitochondrial transcriptomic changes as early triggers of metabolic disease in db/db mice.Mammalian genome : official journal of the International Mammalian Genome Society · 2024
    Article
  5. Article
  6. Review
  7. Article
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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 2 institutions in 2 countries.

Nammi ParkCardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.ORCID https://orcid.org/0000-0002-9285-4411
Jubert MarquezCardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.ORCID https://orcid.org/0000-0002-8541-4362
Maria Victoria Faith GarciaCardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.ORCID https://orcid.org/0000-0002-1541-0569
Ippei ShimizuDepartment of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.ORCID https://orcid.org/0000-0003-3333-8131
Sung Ryul LeeCardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.ORCID https://orcid.org/0000-0002-6250-5149
Hyoung Kyu KimCardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.ORCID https://orcid.org/0000-0002-1791-7865
Jin HanCardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.ORCID https://orcid.org/0000-0003-1859-3425
Inje University · KRNiigata University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIschemic cardiomyopathy (ICM) is the leading cause of heart failure. Proteomic and genomic studies have demonstrated ischemic preconditioning (IPC) can assert cardioprotection against ICM through mitochondrial function regulation. Considering IPC is conducted in a relatively brief period, regulation of protein expression also occurs very rapidly, highlighting the importance of protein function modulation by post-translational modifications. This study aimed to identify and analyze novel phosphorylated mitochondrial proteins that can be harnessed for therapeutic strategies for preventing ischemia/reperfusion (I/R) injury.

methodsSprague-Dawley rat hearts were used in an

resultsThe phosphoproteomic analysis revealed dephosphorylation of mitochondrial creatine kinase (CKMT2) during ischemia and I/R, while preserving its phosphorylated state during IPC. CKMT2 overexpression conferred cardioprotection against hypoxia/reoxygenation (H/R) by increasing cell viability and mitochondrial adenosine triphosphate level, preserving mitochondrial membrane potential, and reduced reactive oxygen species (ROS) generation, while phosphomutations, especially in Y368, nullified cardioprotection by significantly reducing cell viability and increasing ROS production during H/R. CKMT2 overexpression increased mitochondrial function by mediating the proliferator-activated receptor γ coactivator-1α/estrogen-related receptor-α pathway, and these effects were mostly inhibited by Y368A mutation.

conclusionThese results suggest that regulation of quantitative expression and phosphorylation site Y368 of CKMT2 offers a unique mechanism in future ICM therapeutics.

Indexed as

Creatine kinase, mitochondrial formHypoxiaMitochondriaPhosphorylationReoxygenation

Identifiers

PMID34095014
PMCPMC8159762
OpenAlexW3127009642

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.