Evidence map›Paper›PMID 39528719›Full record

ArticleNature cardiovascular research2024

Klf9 is essential for cardiac mitochondrial homeostasis.

Lei Zhang, Menglin Zhang, Jinlong Huang, Jincan Huang, Yujie Zhang, Yinliang Zhang, Houzao Chen, Cuizhe Wang, Xiangwen Xi, Heng Fan and 5 more

Abstract read
PubMed Publisher
In one paragraph

Article in Nature cardiovascular research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

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  10. Acupuncture alleviates secondary brain injury in intracerebral hemorrhage-induced rats through activating the LKLF/Mfn2 pathway.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2026
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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

15 authors.

Lei Zhang *Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key of Cellular Homeostasis and Disease, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
Menglin Zhang *Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key of Cellular Homeostasis and Disease, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
Jinlong Huang *Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key of Cellular Homeostasis and Disease, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
Jincan HuangKey Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key of Cellular Homeostasis and Disease, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
Yujie ZhangKey Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key of Cellular Homeostasis and Disease, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
Yinliang ZhangKey Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key of Cellular Homeostasis and Disease, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China.
Houzao ChenNational Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.ORCID http://orcid.org/0000-0001-6805-3182
Cuizhe WangDepartment of Basic Medicine, Shihezi University School of Medicine, Shihezi, China.
Xiangwen XiDepartment of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Heng FanNingxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China.
Jikui WangHenan Key Laboratory for Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
Dingsheng JiangDivision of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Jinwei TianDepartment of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China. tianjinweidr2009@163.com.ORCID http://orcid.org/0000-0002-2730-0033
Jun ZhangDepartment of Basic Medicine, Shihezi University School of Medicine, Shihezi, China. zhangjunyc@163.com.ORCID http://orcid.org/0000-0001-9796-994X
Yongsheng ChangKey Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key of Cellular Homeostasis and Disease, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China. changys@tmu.edu.cn.ORCID http://orcid.org/0000-0002-7846-8127

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondrial dynamics and mitophagy are intimately linked physiological processes that are essential for cardiac homeostasis. Here we show that cardiac Krüppel-like factor 9 (Klf9) is dysregulated in human and rodent cardiomyopathy. Both global and cardiac-specific Klf9-deficient mice displayed hypertrophic cardiomyopathy. Klf9 knockout led to mitochondrial disarray and fragmentation, impairing mitochondrial respiratory function in cardiomyocytes. Furthermore, cardiac Klf9 deficiency inhibited mitophagy, thereby causing accumulation of dysfunctional mitochondria and acceleration of heart failure in response to angiotensin II treatment. In contrast, cardiac-specific Klf9 transgene improved cardiac systolic function. Mechanistically, Klf9 knockout decreased the expression of PGC-1α and its target genes involved in mitochondrial energy metabolism. Moreover, Klf9 controlled the expression of Mfn2, thereby regulating mitochondrial dynamics and mitophagy. Finally, adeno-associated virus-mediated Mfn2 rescue in Klf9-CKO hearts improved cardiac mitochondrial and systolic function. Thus, Klf9 integrates cardiac energy metabolism, mitochondrial dynamics and mitophagy. Modulating Klf9 activity may have therapeutic potential in the treatment of heart failure.

Indexed as

Energy MetabolismGTP PhosphohydrolasesHeart FailureHomeostasisKruppel-Like Transcription FactorsMice, KnockoutMitochondria, HeartMitochondrial DynamicsMitophagyMyocytes, CardiacAngiotensin IIAnimalsCardiomyopathy, HypertrophicCells, CulturedDisease Models, AnimalHumansAngiotensin IIGTP PhosphohydrolasesKLF9 protein, humanKlf9 protein, mouseKruppel-Like Transcription FactorsMFN2 protein, humanMfn2 protein, mouseMfn2 protein, ratMitochondrial ProteinsPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPpargc1a protein, mouse

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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.