Evidence map›Paper›PMID 32681377›Full record

ArticleWorld journal of microbiology & biotechnology2020

Production and antiproliferative effect of violacein, a purple pigment produced by an Antarctic bacterial isolate.

Diego Alem, Juan José Marizcurrena, Verónica Saravia, Danilo Davyt, Wilner Martinez-Lopez, Susana Castro-Sowinski

Abstract read
PubMed Publisher
In one paragraph

Article in World journal of microbiology & biotechnology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

15 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. A general overview of the multifactorial adaptation to cold: biochemical mechanisms and strategies.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023
    Review
  7. Article
  8. Review
  9. Microbial pigments: Learning from Himalayan perspective to industrial applications.Journal of industrial microbiology & biotechnology · 2022
    Article
  10. Article
  11. Review
  12. Review
  13. Multi-target drug with potential applications: violacein in the spotlight.World journal of microbiology & biotechnology · 2021
    Review
  14. Article
  15. 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

6 authors at 2 institutions in 1 country.

Diego AlemEpigenetics and Genomic Instability Laboratory, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, Montevideo, Uruguay.
Juan José MarizcurrenaBiochemistry and Molecular Biology, Faculty of Sciences, Universidad de la República, Igua 4225, Montevideo, Uruguay.
Verónica SaraviaBioengineering Department, Institute of Chemical Engineering, Faculty of Engineering, Universidad de la República, Av. Julio Herrera y Reissig 565, Montevideo, Uruguay.
Danilo DavytOrganic Chemistry Department, Faculty of Chemistry, Universidad de la República, Gral. Flores 2124, Montevideo, Uruguay.
Wilner Martinez-LopezEpigenetics and Genomic Instability Laboratory, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, Montevideo, Uruguay.
Susana Castro-SowinskiBiochemistry and Molecular Biology, Faculty of Sciences, Universidad de la República, Igua 4225, Montevideo, Uruguay. s.castro.sow@gmail.com.ORCID http://orcid.org/0000-0002-1286-1743
Universidad de la República de Uruguay · UYInstituto de Investigaciones Biológicas Clemente Estable · UY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We studied the production and the potential use of a purple-pigment produced by an Antarctic bacterial isolate. This pigment was identified as violacein, a metabolite produced by many bacterial strains and reported that it has antiproliferative activity in many cell lines. We analyzed the effect of temperature and the composition of the growth medium on pigment production, achieving the highest yield at 20 °C in Tryptic Soy Broth medium supplemented with 3.6 g/L glucose. We doubled the yield of the pigment production when the process was scaled up in a 5 L bioreactor (77 mg/L of crude pigment). The pigment was purified and identified by mass spectrometry (DI-EI-MS) and Nuclear Magnetic Resonance (NMR) spectroscopy as violacein. We performed survival assays that showed that the pure pigment has antiproliferative activity and sensitize HeLa cells (cervix cell carcinoma) to cisplatin. Besides, the pigment did not show genotoxic activity in HeLa cells as found performing micronucleus assays. These results suggest that this pigment may be used as anticancer or sensitizer to cisplatin drug in cervix cancer.

Indexed as

Antarctic RegionsBacteriaBioreactorsCell SurvivalHeLa CellsHumansIndolesPigments, BiologicalIndolesPigments, BiologicalviolaceinCervix cancerCisplatinSenzibilizationViolacein

Identifiers

PMID32681377
OpenAlexW3042681680

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.