Evidence map›Paper›PMID 33540759›Full record

ReviewCancers2021

Molecular and Metabolic Mechanisms Underlying Selective 5-Aminolevulinic Acid-Induced Fluorescence in Gliomas.

Jeffrey I Traylor, Mark N Pernik, Alex C Sternisha, Samuel K McBrayer, Kalil G Abdullah

Open access · goldAbstract readReview
In one paragraph

Review in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 1 pooled it
7.4field-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

53 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Doubly protected ester prodrug of 5-aminolevulinic acid for enhanced cell uptake and photoinactivation.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
    Article
  3. Review
  4. Article
  5. Review
  6. Article
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  9. Article
  10. AnOncology research · 2026
    Article
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  19. Diffuse glioneuronal tumor in Lynch syndrome: illustrative case.Journal of neurosurgery. Case lessons · 2025
    Article
  20. Article
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

5 authors at 2 institutions in 1 country.

Jeffrey I TraylorDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.ORCID 0000-0003-1749-8143
Mark N PernikDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.ORCID 0000-0002-7568-7308
Alex C SternishaChildren's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Samuel K McBrayerChildren's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Kalil G AbdullahDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.
Neurological Surgery · USChildren's Medical Center · US

Funding

Novel Approaches to Modeling and Treating IDH1 Mutant GliomaK22CA237752 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI MCBRAYER, SAMUEL KENT · 2019 to 2021
$494k
NCI NIH HHS K22 CA237752
6 · The paper itself

Abstract

5-aminolevulinic acid (5-ALA) is a porphyrin precursor in the heme synthesis pathway. When supplied exogenously, certain cancers consume 5-ALA and convert it to the fluorogenic metabolite protoporphyrin IX (PpIX), causing tumor-specific tissue fluorescence. Preoperative administration of 5-ALA is used to aid neurosurgical resection of high-grade gliomas such as glioblastoma, allowing for increased extent of resection and progression free survival for these patients. A subset of gliomas, especially low-grade tumors, do not accumulate PpIX intracellularly or readily fluoresce upon 5-ALA administration, making gross total resection difficult to achieve in diffuse lesions. We review existing literature on 5-ALA metabolism and PpIX accumulation to explore potential mechanisms of 5-ALA-induced glioma tissue fluorescence. Targeting the heme synthesis pathway and understanding its dysregulation in malignant tissues could aid the development of adjunct therapies to increase intraoperative fluorescence after 5-ALA treatment.

Indexed as

5-ALAhigh-grade gliomaintraoperative fluorescencelow-grade gliomaprotoporphyrin IX

Identifiers

PMID33540759
PMCPMC7867275
OpenAlexW3126345200

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.