Evidence map›Paper›PMID 31539804›Full record

ArticleRedox biology2020

Advanced oxidation protein products increase TNF-α and IL-1β expression in chondrocytes via NADPH oxidase 4 and accelerate cartilage degeneration in osteoarthritis progression.

Cong-Rui Liao, Sheng-Nan Wang, Si-Yuan Zhu, Yi-Qing Wang, Zong-Ze Li, Zhong-Yuan Liu, Wang-Sheng Jiang, Jian-Ting Chen, Qian Wu

Open access · goldAbstract read
In one paragraph

Article in Redox biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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

75 citing papers in PubMed, 1 synthesis or guideline pooled it, 146 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Forkhead box O proteins in chondrocyte aging and diseases.Journal of orthopaedic translation · 2025
    Review
  10. Article
  11. Anti-osteoarthritis effect of a standardizedNutrition research and practice · 2025
    Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. CombiningFrontiers in cell and developmental biology · 2025
    Article
  20. Article

15 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

9 authors at 2 institutions in 1 country.

Cong-Rui LiaoDepartment of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Sheng-Nan WangDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Si-Yuan ZhuDepartment of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Yi-Qing WangDepartment of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
Zong-Ze LiDepartment of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Zhong-Yuan LiuDepartment of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Wang-Sheng JiangDepartment of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Jian-Ting ChenDepartment of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China. Electronic address: chenjt99@tom.com.
Qian WuDepartment of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China. Electronic address: wuqian4083@126.com.
Southern Medical University · CNNanfang Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Interleukin (IL)-1β and tumor necrosis factor (TNF)-α, in particular, control the degeneration of articular cartilage, making them prime targets for osteoarthritis (OA) therapeutic strategies. Advanced oxidation protein products (AOPPs) are prevalent in numerous diseases. Our previous work demonstrates that intra-articular injections of AOPPs accelerate regression of cartilage in OA models. Whether AOPPs exist in the course of OA and their effects on TNF-α and IL-1β expression in chondrocytes are still unclear. This study confirmed that AOPPs levels in human synovial fluid were positively associated with severity of OA. We also found AOPPs deposition in articular cartilage in anterior cruciate ligament transection (ACLT) induced rodent OA models. AOPPs increased expression of TNF-α and IL-1β in chondrocytes in vitro, which was inhibited by pre-treatment with SB202190 (p38-MAPK inhibitor) or apocynin (NADPH oxidase inhibitor) or NOX4 knockdown by siRNAs. Subsequently, we further verified in vivo that exogenous injection of AOPPs in OA mice up-regulated expression of TNF-α and IL-1β in cartilage, which was blocked by treatment with apocynin. In parallel, apocynin attenuated articular cartilage degeneration resulting in substantially lower OARSI scores. Specifically, apocynin reduced NOX4, p-P38, TNF-α and IL-1β and increased collagen II and glycosaminoglycan (GAG). This study demonstrated that AOPPs increased expression of TNF-α and IL-1β in chondrocytes via the NADPH oxidase4-dependent and p38-MAPK mediated pathway, and accelerated cartilage degeneration in OA progression. These findings suggest an endogenous pathogenic role of AOPPs in OA progression. Targeting AOPPs-triggered cellular mechanisms might be a promising therapeutic option for patients with OA.

Indexed as

AdultAdvanced Oxidation Protein ProductsAgedAnimalsCells, CulturedChondrocytesDisease Models, AnimalDisease ProgressionFemaleHumansInterleukin-1betaMaleMiceMiddle AgedNADPH Oxidase 4Osteoarthritis, KneeAdvanced Oxidation Protein ProductsIL1B protein, humanInterleukin-1betaNADPH Oxidase 4NOX4 protein, humanTNF protein, humanTumor Necrosis Factor-alphaAdvanced oxidation protein productsChondrocytesIL-1βNADPH oxidase 4OsteoarthritisTNF-α

Identifiers

PMID31539804
PMCPMC6812020
OpenAlexW2969633923

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.