Evidence map›Paper›PMID 40425566›Full record

ArticleNature communications2025

Chondrocyte fatty acid oxidation drives osteoarthritis via SOX9 degradation and epigenetic regulation.

Zixuan Mei, Kamuran Yilamu, Weiyu Ni, Panyang Shen, Nan Pan, Huasen Chen, Yingfeng Su, Lei Guo, Qunan Sun, Zhaomei Li and 5 more

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Article
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  4. Review
  5. Article
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  9. Review
  10. Chondroprotective Effects of Enzyme-Treated Extract fromInternational journal of molecular sciences · 2026
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Low ozone concentrations promoteEuropean journal of histochemistry : EJH · 2026
    Article
  19. Review
  20. Review
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.

Zixuan Mei *Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.ORCID http://orcid.org/0009-0001-0284-1597
Kamuran Yilamu *Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Weiyu Ni *Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Panyang Shen *Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Nan PanDepartment of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Huasen ChenDepartment of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Yingfeng SuDepartment of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Lei GuoPooling Institute of Translational Medicine, Hangzhou, China.
Qunan SunDepartment of Medical Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Zhaomei LiDepartment of Geriatrics, Xiaoshan Geriatric Hospital, Hangzhou, China.
Dongdong HuangPooling Institute of Translational Medicine, Hangzhou, China.
Xiangqian FangDepartment of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.ORCID http://orcid.org/0000-0003-4500-8914
Shunwu FanDepartment of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China. shunwu_fan@zju.edu.cn.ORCID http://orcid.org/0000-0003-3443-4395
Haitao ZhangDepartment of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China. zhtmushi@163.com.ORCID http://orcid.org/0009-0003-6223-3408
Shuying ShenDepartment of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China. 11207057@zju.edu.cn.ORCID http://orcid.org/0000-0002-4523-8501

Funding

National Natural Science Foundation of China (National Science Foundation of China) 3230050202National Natural Science Foundation of China (National Science Foundation of China) 82272522National Natural Science Foundation of China (National Science Foundation of China) 82330077National Natural Science Foundation of China (National Science Foundation of China) 82422044National Natural Science Foundation of China (National Science Foundation of China) U21A20351National Natural Science Foundation of China (National Science Foundation of China) U22A20282Natural Science Foundation of Zhejiang Province (Zhejiang Provincial Natural Science Foundation) LR22H060001Natural Science Foundation of Zhejiang Province (Zhejiang Provincial Natural Science Foundation) Q23H060019
6 · The paper itself

Abstract

Osteoarthritis is the most prevalent age-related degenerative joint disease and is closely linked to obesity. However, the underlying mechanisms remain unclear. Here we show that altered lipid metabolism in chondrocytes, particularly enhanced fatty acid oxidation (FAO), contributes to osteoarthritis progression. Excessive FAO causes acetyl-CoA accumulation, thereby altering protein-acetylation profiles, where the core FAO enzyme HADHA is hyperacetylated and activated, reciprocally boosting FAO activity and exacerbating OA progression. Mechanistically, elevated FAO reduces AMPK activity, impairs SOX9 phosphorylation, and ultimately promotes its ubiquitination-mediated degradation. Additionally, acetyl-CoA orchestrates epigenetic modulation, affecting multiple cellular processes critical for osteoarthritis pathogenesis, including the transcriptional activation of MMP13 and ADAMTS7. Cartilage-targeted delivery of trimetazidine, an FAO inhibitor and AMPK activator, demonstrates superior efficacy in a mouse model of metabolism-associated post-traumatic osteoarthritis. These findings suggest that targeting chondrocyte-lipid metabolism may offer new therapeutic strategies for osteoarthritis.

Indexed as

ChondrocytesEpigenesis, GeneticFatty AcidsOsteoarthritisSOX9 Transcription FactorAcetylationAcetyl Coenzyme AAMP-Activated Protein KinasesAnimalsDisease Models, AnimalHumansLipid MetabolismMaleMatrix Metalloproteinase 13MiceMice, Inbred C57BLAcetyl Coenzyme AAMP-Activated Protein KinasesFatty AcidsMatrix Metalloproteinase 13SOX9 protein, humanSox9 protein, mouseSOX9 Transcription Factor

Identifiers

PMID40425566
PMCPMC12117060

What OpenQuestion holds

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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.