Evidence map›Paper›PMID 19651784›Full record

ArticleThe Journal of biological chemistry2009

C1q tumor necrosis factor alpha-related protein isoform 5 is increased in mitochondrial DNA-depleted myocytes and activates AMP-activated protein kinase.

Seung-Yoon Park, Jung Hyun Choi, Hyun Su Ryu, Youngmi Kim Pak, Kyong Soo Park, Hong Kyu Lee, Wan Lee

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

63 citing papers in PubMed, 111 citations in OpenAlex.

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  5. Unveiling the roles of CTRP family in cardiac remodeling.Journal of molecular medicine (Berlin, Germany) · 2025
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3 more citing papers are in PubMed but not listed here.

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.

Seung-Yoon ParkDepartment of Biochemistry, Dongguk University College of Medicine, Kyungju 780-714.
Jung Hyun ChoiDepartment of Biochemistry, Dongguk University College of Medicine, Kyungju 780-714.
Hyun Su RyuDepartment of Biochemistry, Dongguk University College of Medicine, Kyungju 780-714.
Youngmi Kim PakDepartment of Nanopharmaceutical and Life Science, Age-Related and Brain Diseases Research Center, Kyung Hee University, Seoul 130-701.
Kyong Soo ParkDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul 110-744, Korea.
Hong Kyu LeeDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul 110-744, Korea.
Wan LeeDepartment of Biochemistry, Dongguk University College of Medicine, Kyungju 780-714. Electronic address: wanlee@dongguk.ac.kr.
Dongguk University · KRSeoul National University · KRKyung Hee University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Depletion of mtDNA in myocytes causes insulin resistance and alters nuclear gene expression that may be involved in rescuing processes against cellular stress. Here we show that the expression of C1q tumor necrosis factor alpha-related protein isoform 5 (C1QTNF5) is drastically increased following depletion of mtDNA in myocytes. C1QTNF5 is homologous to adiponectin in respect to domain structure, and its expression and secretion from myocytes correlated negatively with the cellular mtDNA content. Similar to adiponectin, C1QTNF5 induced the phosphorylation of AMP-activated protein kinase (AMPK), leading to increased cell surface recruitment of GLUT4 and increased glucose uptake. Treatment of cells with purified recombinant C1QTNF5 increased the phosphorylation of acetyl-CoA carboxylase and stimulated fatty acid oxidation. C1QTNF5-mediated phosphorylation of AMPK or acetyl-CoA carboxylase was unaffected by depletion of adiponectin receptors such as AdipoR1 or AdipoR2, which indicated that adiponectin receptors do not participate in C1QTNF5-induced activation of AMPK. Serum C1QTNF5 levels were significantly higher in obese/diabetic animals (OLETF rats, ob/ob mice, and db/db mice). These results highlight C1QTNF5 as a putative biomarker for mitochondrial dysfunction and a potent activator of AMPK.

Indexed as

DNA, MitochondrialMuscle CellsAcetyl-CoA CarboxylaseAminoimidazole CarboxamideAMP-Activated Protein KinasesAnimalsCell LineCollagenDiabetes Mellitus, Type 2Disease Models, AnimalEnzyme ActivationFatty AcidsGlucoseGlucose Transporter Type 4HumansInsulin Receptor Substrate ProteinsAcetyl-CoA Carboxylaseadiponectin receptor 1, ratadiponectin receptor 2, ratAICA ribonucleotideAminoimidazole CarboxamideAMP-Activated Protein KinasesC1QTNF5 protein, humanC1QTNF5 protein, ratCollagenCTRP5 protein, mouseDNA, MitochondrialFatty AcidsGlucoseGlucose Transporter Type 4Insulin Receptor Substrate ProteinsIntracellular Signaling Peptides and ProteinsIrs1 protein, ratMembrane Proteinsp38 Mitogen-Activated Protein KinasesProto-Oncogene Proteins c-aktReceptors, AdiponectinRecombinant Fusion ProteinsRibonucleotidesRNA, Small InterferingSlc2a4 protein, rat

Identifiers

PMID19651784
PMCPMC2788828
OpenAlexW2025643953

What OpenQuestion holds

Textmetadata
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.