Evidence map›Paper›PMID 33986262›Full record

ArticleCell death & disease2021

Kartogenin prevents cartilage degradation and alleviates osteoarthritis progression in mice via the miR-146a/NRF2 axis.

Mingzhuang Hou, Yijian Zhang, Xinfeng Zhou, Tao Liu, Huilin Yang, Xi Chen, Fan He, Xuesong Zhu

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
11.7field-weighted citation impact, top 1% 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

49 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Article
  3. [Application of Kartogenin in cartilage tissue engineering].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Therapeutic restoration of mitochondria-endoplasmic reticulum cross talk for osteoarthritis.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  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

8 authors at 2 institutions in 1 country.

Mingzhuang Hou *Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, China.
Yijian Zhang *Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, China.
Xinfeng ZhouDepartment of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, China.
Tao LiuDepartment of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, China.
Huilin YangDepartment of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, China.
Xi ChenDepartment of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou, China. chenxi1124@suda.edu.cn.
Fan HeDepartment of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, China. fanhe@suda.edu.cn.
Xuesong ZhuDepartment of Orthopaedics, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, China. zhuxs@suda.edu.cn.
Soochow University · CNFirst Affiliated Hospital of Soochow University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteoarthritis (OA) is a common articular degenerative disease characterized by loss of cartilage matrix and subchondral bone sclerosis. Kartogenin (KGN) has been reported to improve chondrogenic differentiation of mesenchymal stem cells. However, the therapeutic effect of KGN on OA-induced cartilage degeneration was still unclear. This study aimed to explore the protective effects and underlying mechanisms of KGN on articular cartilage degradation using mice with post-traumatic OA. To mimic the in vivo arthritic environment, in vitro cultured chondrocytes were exposed to interleukin-1β (IL-1β). We found that KGN barely affected the cell proliferation of chondrocytes; however, KGN significantly enhanced the synthesis of cartilage matrix components such as type II collagen and aggrecan in a dose-dependent manner. Meanwhile, KGN markedly suppressed the expression of matrix degradation enzymes such as MMP13 and ADAMTS5. In vivo experiments showed that intra-articular administration of KGN ameliorated cartilage degeneration and inhibited subchondral bone sclerosis in an experimental OA mouse model. Molecular biology experiments revealed that KGN modulated intracellular reactive oxygen species in IL-1β-stimulated chondrocytes by up-regulating nuclear factor erythroid 2-related factor 2 (NRF2), while barely affecting its mRNA expression. Microarray analysis further revealed that IL-1β significantly up-regulated miR-146a that played a critical role in regulating the protein levels of NRF2. KGN treatment showed a strong inhibitory effect on the expression of miR-146a in IL-1β-stimulated chondrocytes. Over-expression of miR-146a abolished the anti-arthritic effects of KGN not only by down-regulating the protein levels of NRF2 but also by up-regulating the expression of matrix degradation enzymes. Our findings demonstrate, for the first time, that KGN exerts anti-arthritic effects via activation of the miR-146a-NRF2 axis and KGN is a promising heterocyclic molecule to prevent OA-induced cartilage degeneration.

Indexed as

AnilidesAnimalsCell DifferentiationDisease Models, AnimalDisease ProgressionHumansMaleMiceMicroRNAsOsteoarthritisPhthalic AcidsAnilideskartogeninMicroRNAsMirn146 microRNA, mousePhthalic Acids

Identifiers

PMID33986262
PMCPMC8119954
OpenAlexW3162620440

What OpenQuestion 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 OpenQuestion graph.