Evidence map›Paper›PMID 34360007›Full record

ArticleCells2021

BNIP3-Dependent Mitophagy via PGC1α Promotes Cartilage Degradation.

Deokha Kim, Jinsoo Song, Eun-Jung Jin

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

35 citing papers in PubMed, 50 citations in OpenAlex.

  1. Programmed cell death in osteoarthritis.Apoptosis : an international journal on programmed cell death · 2026
    Review
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  18. Prognositic value of anoikis and tumor immune microenvironment-related gene in the treatment of osteosarcoma.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2024
    Article
  19. Advances in the study of mitophagy in osteoarthritis.Journal of Zhejiang University. Science. B · 2024
    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

3 authors at 1 institution in 1 country.

Deokha KimDepartment of Biological Sciences, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Korea.
Jinsoo SongDepartment of Biological Sciences, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Korea.
Eun-Jung JinDepartment of Biological Sciences, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Korea.ORCID 0000-0002-6874-3017
Wonkwang University · KR

Funding

National Research Foundation of Korea 2019R1I1A1A01041827
6 · The paper itself

Abstract

Since mitochondria are suggested to be important regulators in maintaining cartilage homeostasis, turnover of mitochondria through mitochondrial biogenesis and mitochondrial degradation may play an important role in the pathogenesis of osteoarthritis (OA). Here, we found that mitochondrial dysfunction is closely associated with OA pathogenesis and identified the peroxisome proliferator-activated receptor-gamma co-activator 1-alpha (PGC1α) as a potent regulator. The expression level of PGC1α was significantly decreased under OA conditions, and knockdown of PGC1α dramatically elevated the cartilage degradation by upregulating cartilage degrading enzymes and apoptotic cell death. Interestingly, the knockdown of PGC1α activated the parkin RBR E3 ubiquitin protein ligase (PRKN)-independent selective mitochondria autophagy (mitophagy) pathway through the upregulation of BCL2 and adenovirus E1B 19-kDa-interacting protein 3 (BNIP3). The overexpression of BNIP3 stimulated mitophagy and cartilage degradation by upregulating cartilage-degrading enzymes and chondrocyte death. We identified microRNA (miR)-126-5p as an upstream regulator for PGC1α and confirmed the direct binding between miR-126-5p and 3' untranslated region (UTR) of PGC1α. An in vivo OA mouse model induced by the destabilization of medial meniscus (DMM) surgery, and the delivery of antago-miR-126 via intra-articular injection significantly decreased cartilage degradation. In sum, the loss of PGC1α in chondrocytes due to upregulation of miR-126-5p during OA pathogenesis resulted in the activation of PRKN-independent mitophagy through the upregulation of BNIP3 and stimulated cartilage degradation and apoptotic death of chondrocytes. Therefore, the regulation of PGC1α:BNIP3 mitophagy axis could be of therapeutic benefit to cartilage-degrading diseases.

Indexed as

AnimalsAntagomirsArthroplasty, Replacement, KneeBase SequenceCartilage, ArticularChondrocytesDisease Models, AnimalGene Expression RegulationHumansMembrane ProteinsMenisci, TibialMiceMice, Inbred C57BLMicroRNAsMitochondriaMitochondrial ProteinsAntagomirsBcl2 protein, mouseBNip3 protein, mouseMembrane ProteinsMicroRNAsMIRN126 microRNA, mouseMitochondrial Proteinsparkin proteinPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPpargc1a protein, mouseProto-Oncogene Proteins c-bcl-2RNA, Small InterferingUbiquitin-Protein LigasesautophagyBNIP3miR-126-5pmitophagyosteoarthritisPGC1A

Identifiers

PMID34360007
PMCPMC8304751
OpenAlexW3184522390

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.