Evidence map›Paper›PMID 34440798›Full record

ArticleCells2021

Kynurenine Monooxygenase Expression and Activity in Human Astrocytomas.

Gustavo Ignacio Vázquez Cervantes, Benjamín Pineda, Daniela Ramírez Ortega, Alelí Salazar, Dinora Fabiola González Esquivel, Daniel Rembao, Sergio Zavala Vega, Saúl Gómez-Manzo, Gonzalo Pérez de la Cruz, Verónica Pérez de la Cruz

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 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 45% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

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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

10 authors at 3 institutions in 1 country.

Gustavo Ignacio Vázquez CervantesNeurochemistry and Behavior Laboratory, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.ORCID 0000-0002-5824-4839
Benjamín PinedaNeuroimmunology Department, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.ORCID 0000-0002-1455-312X
Daniela Ramírez OrtegaNeurochemistry and Behavior Laboratory, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.ORCID 0000-0001-8610-7404
Alelí SalazarNeuroimmunology Department, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.ORCID 0000-0002-9289-7171
Dinora Fabiola González EsquivelNeurochemistry and Behavior Laboratory, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.ORCID 0000-0001-8262-3399
Daniel RembaoNeuropathology Department, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.
Sergio Zavala VegaNeuropathology Department, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.
Saúl Gómez-ManzoLaboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, México City 04530, Mexico.ORCID 0000-0003-2095-9182
Gonzalo Pérez de la CruzDepartment of Mathematics, Faculty of Sciences, Universidad Nacional Autónoma de México, UNAM, Mexico City 04510, Mexico.
Verónica Pérez de la CruzNeurochemistry and Behavior Laboratory, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Mexico City 14269, Mexico.ORCID 0000-0002-1451-8754
Instituto Nacional de Neurología y Neurocirugía · MXSecretaria de Salud · MXUniversidad Nacional Autónoma de México · MX

Funding

This research was funded by Consejo de Investigación sobre Salud y Cerveza de México, A. C. Fomento a la Investigación 2019 110-19
6 · The paper itself

Abstract

Glioblastoma multiforme (GBM) is the most common and aggressive primary brain tumor. The enzyme indoleamine-2,3-dioxygenase (IDO), which participates in the rate-limiting step of tryptophan catabolism through the kynurenine pathway (KP), is associated with poor prognosis in patients with GBM. The metabolites produced after tryptophan oxidation have immunomodulatory properties that can support the immunosuppressor environment. In this study, mRNA expression, protein expression, and activity of the enzyme kynurenine monooxygenase (KMO) were analyzed in GBM cell lines (A172, LN-18, U87, U373) and patient-derived astrocytoma samples. KMO mRNA expression was assessed by real-time RT-qPCR, KMO protein expression was evaluated by flow cytometry and immunofluorescence, and KMO activity was determined by quantifying 3-hydroxykynurenine by HPLC. Heterogenous patterns of both KMO expression and activity were observed among the GBM cell lines, with the A172 cell line showing the highest KMO expression and activity. Higher KMO mRNA expression was observed in glioma samples than in patients diagnosed with only a neurological disease; high KMO mRNA expression was also observed when using samples from patients with GBM in the TCGA program. The KMO protein expression was localized in GFAP

Indexed as

Gene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticAdultAstrocytomaBrain NeoplasmsCell Line, TumorFemaleGliomaHumansKaplan-Meier EstimateKynurenineKynurenine 3-MonooxygenaseMaleMiddle AgedMutationPTEN Phosphohydrolase3-hydroxykynurenineKynurenineKynurenine 3-MonooxygenasePTEN PhosphohydrolaseTumor Suppressor Protein p53glioblastomakynurenine monooxygenasetryptophan catabolism

Identifiers

PMID34440798
PMCPMC8393384
OpenAlexW3190506370

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.