Evidence map›Paper›PMID 33942503›Full record

ArticleJournal of cellular and molecular medicine2021

The detrimental effect of iron on OA chondrocytes: Importance of pro-inflammatory cytokines induced iron influx and oxidative stress.

Xingzhi Jing, Ting Du, Tao Li, Xiaoxia Yang, Guodong Wang, Xiaoyang Liu, Zhensong Jiang, Xingang Cui

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 86 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Interleukin-1β-induced arthritis involves chondrocyte oxiapoptophagy.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2026
    Article
  7. Hemochromatosis osteoarthritis.Frontiers in endocrinology · 2026
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Quercetin attenuates the symptoms of osteoarthritisMolecular medicine reports · 2025
    Article
  17. Review
  18. Review
  19. Article
  20. Article

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

8 authors at 2 institutions in 1 country.

Xingzhi JingDepartment of spine surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China.ORCID 0000-0001-6916-4204
Ting DuDepartment of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital Affiliated to Shandong University, Jinan, China.
Tao LiDepartment of spine surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China.
Xiaoxia YangDepartment of spine surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China.
Guodong WangDepartment of spine surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China.
Xiaoyang LiuDepartment of spine surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China.
Zhensong JiangDepartment of spine surgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China.
Xingang CuiDepartment of spine surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.
Shandong Provincial Hospital · CNShandong University · CN

Funding

National Natural Science Foundation of China 82002325Natural Science Foundation of Shandong Province ZR2020QH075
6 · The paper itself

Abstract

Iron overload is common in elderly people which is implicated in the disease progression of osteoarthritis (OA), however, how iron homeostasis is regulated during the onset and progression of OA and how it contributes to the pathological transition of articular chondrocytes remain unknown. In the present study, we developed an in vitro approach to investigate the roles of iron homeostasis and iron overload mediated oxidative stress in chondrocytes under an inflammatory environment. We found that pro-inflammatory cytokines could disrupt chondrocytes iron homeostasis via upregulating iron influx transporter TfR1 and downregulating iron efflux transporter FPN, thus leading to chondrocytes iron overload. Iron overload would promote the expression of chondrocytes catabolic markers, MMP3 and MMP13 expression. In addition, we found that oxidative stress and mitochondrial dysfunction played important roles in iron overload-induced cartilage degeneration, reducing iron concentration using iron chelator or antioxidant drugs could inhibit iron overload-induced OA-related catabolic markers and mitochondrial dysfunction. Our results suggest that pro-inflammatory cytokines could disrupt chondrocytes iron homeostasis and promote iron influx, iron overload-induced oxidative stress and mitochondrial dysfunction play important roles in iron overload-induced cartilage degeneration.

Indexed as

Oxidative StressAnimalsCells, CulturedChondrocytesCytokinesInflammationInflammation MediatorsIron OverloadMaleMatrix Metalloproteinase 13Matrix Metalloproteinase 3MiceMice, Inbred C57BLOsteoarthritisCytokinesInflammation MediatorsMatrix Metalloproteinase 13Matrix Metalloproteinase 3MMP13 protein, humanMMP3 protein, humaniron overloadmitochondrial dysfunctionosteoarthritisoxidative stresspro-inflammatory cytokines

Identifiers

PMID33942503
PMCPMC8184674
OpenAlexW3157544230

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.