Evidence map›Paper›PMID 27276226›Full record

ArticlePloS one2016

Study of LAT1 Expression in Brain Metastases: Towards a Better Understanding of the Results of Positron Emission Tomography Using Amino Acid Tracers.

Caroline Papin-Michault, Christelle Bonnetaud, Maxime Dufour, Fabien Almairac, Mickael Coutts, Stéphanie Patouraux, Thierry Virolle, Jacques Darcourt, Fanny Burel-Vandenbos

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 5% 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

51 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.

  1. Guideline
  2. European journal of nuclear medicine and molecular imaging · 2019
    Trial
  3. Trial
  4. Article
  5. Review
  6. CD98 Light Chain LAT1 Tracers in PET-CT Diagnosis of Cancer Patients.Anti-cancer agents in medicinal chemistry · 2026
    Review
  7. Imaging in Neuro-oncology.Seminars in neurology · 2025
    Review
  8. Article
  9. Metabolic adaptations of brain metastasis.Nature reviews. Cancer · 2025
    Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Preclinical and Clinical Use of Indigenously DevelopedACS pharmacology & translational science · 2023
    Review
  15. Review
  16. Review
  17. Comparison of [Scientific reports · 2023
    Article
  18. Transporter-Mediated Drug Delivery.Molecules (Basel, Switzerland) · 2023
    Review
  19. 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

9 authors at 4 institutions in 1 country.

Caroline Papin-MichaultDepartment of Pathology, University Hospital, Nice, France.
Christelle BonnetaudDepartment of Experimental Pathology, University Hospital, Nice, France.
Maxime DufourDepartment of Nuclear Medicine, Centre Antoine Lacassagne, Nice, France.
Fabien AlmairacDepartment of Neurosurgery, University Hospital, Nice, France.
Mickael CouttsDepartment of Pathology, University Hospital, Nice, France.
Stéphanie PatourauxDepartment of Pathology, University Hospital, Nice, France.
Thierry VirolleUMR CNRS 7277-UMR INSERM 1091, Institute of Biology Valrose, University of Sciences, Nice, France.
Jacques DarcourtDepartment of Nuclear Medicine, Centre Antoine Lacassagne, Nice, France.
Fanny Burel-VandenbosDepartment of Pathology, University Hospital, Nice, France.
Centre Hospitalier Universitaire de Nice · FRUniversité Côte d'Azur · FRInserm · FRInstitut de Biologie Valrose · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Positron emission tomography using radiolabeled amino acid (PET-AA) appears to be promising in distinguishing between recurrent tumour and radionecrosis in the follow-up of brain metastasis (BM). The amino acid transporter LAT1 and its cofactor CD98, which are involved in AA uptake, have never been investigated in BM. The aim of our study was to determine and compare the expression of LAT1 and CD98 in BM and in non-tumoral brain tissue (NT). The expression of LAT1 and CD98 were studied by immunohistochemistry in 67 BM, including 18 BM recurrences after radiotherapy, in 53 NT, and in 13 cases of patients with previously irradiated brain tumor and investigated by [18F] FDOPA-PET. LAT1 and CD98 expression were detected in 98.5% and 59.7% of BM respectively and were significantly associated with BM tissue as compared to NT (p<0.001). LAT1 expression in recurrent BM was significantly increased as compared to newly occurring BM. Ten cases investigated by [18F] FDOPA-PET corresponding to recurrent BM displayed significant [18F] FDOPA uptake and LAT1 overexpression whereas three cases corresponding to radionecrosis showed no or low uptake and LAT1 expression. LAT1 expression level and [18F] FDOPA uptake were significantly correlated. In conclusion, we hypothesized that BM may overexpress the AA transporter LAT1. We have shown that LAT1 overexpression was common in BM and was specific for BM as compared to healthy brain. These results could explain the specific BM uptake on PET-AA.

Indexed as

Brain NeoplasmsGene Expression Regulation, NeoplasticDihydroxyphenylalanineFemaleHumansLarge Neutral Amino Acid-Transporter 1MaleNeoplasm MetastasisNeoplasm ProteinsPositron-Emission TomographyRadioactive TracersRadiopharmaceuticalsDihydroxyphenylalanineLarge Neutral Amino Acid-Transporter 1Neoplasm ProteinsRadioactive TracersRadiopharmaceuticals

Identifiers

PMID27276226
PMCPMC4898730
OpenAlexW2409403915

What OpenQuestion holds

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Registered trials

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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.