Evidence map›Paper›PMID 37459644›Full record

ArticleAmerican journal of respiratory cell and molecular biology2023

Targeting Pulmonary Fibrosis by SLC1A5-Dependent Glutamine Transport Blockade.

Malay Choudhury, Kyle J Schaefbauer, Theodore J Kottom, Eunhee S Yi, Daniel J Tschumperlin, Andrew H Limper

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.7field-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

22 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Targeting the Glutaminolysis Pathway in Glaucoma-Associated Fibrosis.International journal of molecular sciences · 2025
    Review
  12. Article
  13. Altered Metabolism in Idiopathic Pulmonary Fibrosis.Journal of cellular physiology · 2025
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Malay ChoudhuryThoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Department of Biochemistry and Molecular Biology, and.ORCID 0000-0003-3051-9084
Kyle J SchaefbauerThoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Department of Biochemistry and Molecular Biology, and.
Theodore J KottomThoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Department of Biochemistry and Molecular Biology, and.
Eunhee S YiDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota.
Daniel J TschumperlinDepartment of Physiology and Biomedical Engineering, College of Medicine and Science, and.
Andrew H LimperThoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Department of Biochemistry and Molecular Biology, and.
Mayo Clinic · US

Funding

Targeting the Amino Acid Transporter SLC7A5 for Pulmonary FibrosisR01HL167732 · NHLBI · WASHINGTON UNIVERSITY · PI Malay Choudhury · 2023 to 2026
$2.0M
Targeting the Amino Acid Transporter SLC7A5 for Treatment of Pulmonary FibrosisR56HL158549 · NHLBI · WASHINGTON UNIVERSITY · PI CHOUDHURY, MALAY · 2022 to 2022
$397k
NHLBI NIH HHS R01 HL167732NHLBI NIH HHS R56 HL158549
6 · The paper itself

Abstract

The neutral amino acid glutamine plays a central role in TGF-β (transforming growth factor-β)-induced myofibroblast activation and differentiation. Cells take up glutamine mainly through a transporter expressed on the cell surface known as solute carrier SLC1A5 (solute carrier transporter 1A5). In the present work, we demonstrated that profibrotic actions of TGF-β are mediated, at least in part, through a metabolic maladaptation of SLC1A5 and that targeting SLC1A5 abrogates multiple facets of fibroblast activation. This approach could thus represent a novel therapeutic strategy to treat patients with fibroproliferative diseases. We found that SLC1A5 was highly expressed in fibrotic lung fibroblasts and fibroblasts isolated from idiopathic pulmonary fibrosis lungs. The expression of profibrotic targets, cell migration, and anchorage-independent growth by TGF-β required the activity of SLC1A5. Loss or inhibition of SLC1A5 function enhanced fibroblast susceptibility to autophagy; suppressed mTOR, HIF (hypoxia-inducible factor), and Myc signaling; and impaired mitochondrial function, ATP production, and glycolysis. Pharmacological inhibition of SLC1A5 by the small-molecule inhibitor V-9302 shifted fibroblast transcriptional profiles from profibrotic to fibrosis resolving and attenuated fibrosis in a bleomycin-treated mouse model of lung fibrosis. This is the first study, to our knowledge, to demonstrate the utility of a pharmacological inhibitor of glutamine transport in fibrosis, providing a framework for new paradigm-shifting therapies targeting cellular metabolism for this devastating disease.

Indexed as

GlutamineIdiopathic Pulmonary FibrosisLungAmino Acid Transport System ASCAnimalsBleomycinFibroblastsFibrosisHumansMiceMinor Histocompatibility AntigensProto-Oncogene Proteins c-mycSignal TransductionTransforming Growth Factor betaAmino Acid Transport System ASCBleomycinGlutamineMinor Histocompatibility AntigensProto-Oncogene Proteins c-mycSLC1A5 protein, humanTransforming Growth Factor betableomycinglutamine metabolismpulmonary fibrosisSLC1A5TGF-β signaling

Identifiers

PMID37459644
PMCPMC10557918
OpenAlexW4384521349

What OpenQuestion holds

Textmetadata
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.