Evidence map›Paper›PMID 35998043›Full record

ArticleJCI insight2022

Impaired fatty acid metabolism perpetuates lipotoxicity along the transition to chronic kidney injury.

Anna Rinaldi, Hélène Lazareth, Virginie Poindessous, Ivan Nemazanyy, Julio L Sampaio, Daniele Malpetti, Yohan Bignon, Maarten Naesens, Marion Rabant, Dany Anglicheau and 2 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

46 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
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  6. The roles of free-fatty acid receptors in the pathophysiology of renal disorders.The Journal of pharmacology and experimental therapeutics · 2026
    Review
  7. Article
  8. Review
  9. Article
  10. Hyperlipidemia in membranous nephropathy.Clinical kidney journal · 2026
    Review
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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

12 authors at 8 institutions in 3 countries.

Anna RinaldiDepartment of Medicine, Division of Nephrology, Ente Ospedaliero Cantonale, Lugano, Switzerland.
Hélène LazarethUniversité Paris Cité, INSERM UMRS1138, Centre de Recherche des Cordeliers, Paris, France.
Virginie PoindessousUniversité Paris Cité, INSERM UMRS1138, Centre de Recherche des Cordeliers, Paris, France.
Ivan NemazanyyPMM: The Metabolism-Metabolome Platform, Necker Federative Research Structure, INSERM US24/CNRS UMS3633, Paris, France.
Julio L SampaioCurieCoreTech Metabolomics and Lipidomics Technology Platform, Institut Curie, Paris, France.
Daniele MalpettiIstituto Dalle Molle di Studi sull'Intelligenza Artificiale (IDSIA), USI/SUPSI, Lugano, Switzerland.
Yohan BignonDepartment of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland.
Maarten NaesensDepartment of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.
Marion RabantDepartment of Pathology and.
Dany AnglicheauDepartment of Nephrology and Kidney Transplantation, Assistance Publique Hôpitaux de Paris, Necker Hospital, Paris, France.
Pietro E CippàDepartment of Medicine, Division of Nephrology, Ente Ospedaliero Cantonale, Lugano, Switzerland.
Nicolas PalletUniversité Paris Cité, INSERM UMRS1138, Centre de Recherche des Cordeliers, Paris, France.
Inserm · FREnte Ospedaliero Cantonale · CHCentre National de la Recherche Scientifique · FRDélégation Paris 5 · FRKU Leuven · BEPhysique des Cellules et Cancers · FRUniversity of Applied Sciences and Arts of Southern Switzerland · CHUniversity of Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Energy metabolism failure in proximal tubule cells (PTCs) is a hallmark of chronic kidney injury. We combined transcriptomic, metabolomic, and lipidomic approaches in experimental models and patient cohorts to investigate the molecular basis of the progression to chronic kidney allograft injury initiated by ischemia/reperfusion injury (IRI). The urinary metabolome of kidney transplant recipients with chronic allograft injury and who experienced severe IRI was substantially enriched with long chain fatty acids (FAs). We identified a renal FA-related gene signature with low levels of carnitine palmitoyltransferase 2 (Cpt2) and acyl-CoA synthetase medium chain family member 5 (Acsm5) and high levels of acyl-CoA synthetase long chain family member 4 and 5 (Acsl4 and Acsl5) associated with IRI, transition to chronic injury, and established chronic kidney disease in mouse models and kidney transplant recipients. The findings were consistent with the presence of Cpt2-Acsl4+Acsl5+Acsm5- PTCs failing to recover from IRI as identified by single-nucleus RNA-Seq. In vitro experiments indicated that ER stress contributed to CPT2 repression, which, in turn, promoted lipids' accumulation, drove profibrogenic epithelial phenotypic changes, and activated the unfolded protein response. ER stress through CPT2 inhibition and lipid accumulation engaged an auto-amplification loop leading to lipotoxicity and self-sustained cellular stress. Thus, IRI imprints a persistent FA metabolism disturbance in the proximal tubule, sustaining the progression to chronic kidney allograft injury.

Indexed as

Carnitine O-PalmitoyltransferaseKidneyAnimalsCoenzyme AFatty AcidsLigasesMiceCarnitine O-PalmitoyltransferaseCoenzyme AFatty AcidsLigasesBioenergeticsNephrologyTransplantation

Identifiers

PMID35998043
PMCPMC9675570
OpenAlexW4292774824

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.