Evidence map›Paper›PMID 28877670›Full record

ArticleBMC nephrology2017

Indoleamine 2, 3-dioxygenase (IDO) increases during renal fibrogenesis and its inhibition potentiates TGF-β 1-induced epithelial to mesenchymal transition.

Luiz Henrique Gomes Matheus, Gislene Mendes Simão, Taíssa Altieri Amaral, Rodrigo Barbosa Oliveira Brito, Camila Soares Malta, Yves Silva Teles Matos, Alexandre Chagas Santana, Gabriela Gomes Cardoso Rodrigues, Maria Clara Albejante, Erna Elisabeth Bach and 3 more

Open access · goldAbstract read
In one paragraph

Article in BMC nephrology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.1field-weighted citation impact, top 58% 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

16 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Article
  3. Mitigation of Ferroptosis in Diabetic Kidney Disease Through Mesenchymal Stem Cell Intervention via the Smad2/3/METTL3/S1PR1 Axis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  4. Review
  5. Archives of Razi Institute · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. The Footprint of Kynurenine Pathway in Cardiovascular Diseases.International journal of tryptophan research : IJTR · 2022
    Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Observational
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

13 authors at 1 institution in 1 country.

Luiz Henrique Gomes MatheusPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Gislene Mendes SimãoPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Taíssa Altieri AmaralPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Rodrigo Barbosa Oliveira BritoPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Camila Soares MaltaPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Yves Silva Teles MatosPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Alexandre Chagas SantanaPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Gabriela Gomes Cardoso RodriguesPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Maria Clara AlbejantePostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Erna Elisabeth BachPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Maria Aparecida DalboniPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Cleber Pinto CamachoPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil.
Humberto DellêPostgraduate Program in Medicine, Universidade Nove de Julho (UNINOVE), Rua Vergueiro, 235, 2º subsolo, São Paulo, 01504-001, São Paulo, Brazil. hdelle@usp.br.
Universidade Nove de Julho · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIndoleamine 2, 3-dioxygenase (IDO) is an immunomodulatory molecule that has been implicated in several biological processes. Although IDO has been linked with some renal diseases, its role in renal fibrosis is still unclear. Because IDO may be modulated by TGF-β1, a potent fibrogenic molecule, we hypothesized that IDO could be involved in renal fibrosis, especially acting in the TGF-β1-induced tubular epithelial-mesenchymal transition (EMT). We analyzed the IDO expression and activity in a model of renal fibrogenesis, and the effect of the IDO inhibitor 1-methyl-tryptophan (MT) on TGF-β1-induced EMT using tubular cell culture.

methodsMale Wistar rats where submited to 7 days of UUO. Non-obstructed kidneys (CL) and kidneys from SHAM rats were used as controls. Masson's Tricrome and macrophages counting were used to chatacterize the tissue fibrosis. The EMT was analysed though immunohistochemistry and qRT-PCR. Immunohistochemestry in tissue has used to show IDO expression. MDCK cells were incubated with TGF- β1 to analyse IDO expression. Additionally, effects of TGF- β1 and the inhibition of IDO over the EMT process was acessed by immunoessays and scrath wound essay.

resultsIDO was markedly expressed in cortical and medular tubules of the UUO kidneys. Similarly to the immunolocalizaton of TGF- β1, accompanied by loss of e-cadherin expression and an increase of mesenchymal markers. Results in vitro with MDCK cells, showed that IDO was increased after stimulus with TGF-β1, and treatment with MT potentiated its expression. MDCK stimulated with TGF-β1 had higher migratory activity (scratch-wound assay), which was exacerbated by MT treatment.

conclusionsIDO is constitutively expressed in tubular cells and increases during renal fibrogenesis. Although IDO is induced by TGF-β1 in tubular cells, its chemical inhibitor acts as a profibrotic agent.

Indexed as

AnimalsDogsEpithelial-Mesenchymal TransitionFibrosisIndoleamine-Pyrrole 2,3,-DioxygenaseKidney DiseasesMadin Darby Canine Kidney CellsMaleRatsRats, WistarTransforming Growth Factor beta1Tryptophan1-methyltryptophanIndoleamine-Pyrrole 2,3,-DioxygenaseTransforming Growth Factor beta1Tryptophan1-methyl-D-tryptophanEpithelial to mesenchymal transitionIndoleamine 2, 3-dioxygenaseRenal fibrosisRenal inflammationTGF-β 1

Identifiers

PMID28877670
PMCPMC5585959
OpenAlexW2753452256

What OpenQuestion holds

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LicenceCC BY
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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.