Evidence map›Paper›PMID 29705163›Full record

ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]

Free fatty acids reduce metabolic stress and favor a stable production of heterologous proteins in Pichia pastoris.

Andrea B Zepeda, Carolina A Figueroa, Adalberto Pessoa, Jorge G Farías

Open access · hybridAbstract read
In one paragraph

Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 35% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Current advances ofFrontiers in microbiology · 2022
    Review
  6. 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

4 authors at 2 institutions in 2 countries.

Andrea B ZepedaUniversidad de La Frontera, Facultad de Ingeniería, Ciencias y Administración, Departamento de Ingeniería Química, Temuco, Chile; Universidade de São Paulo, Faculdade de Ciências Farmacêuticas, Departamento de Tecnologia Bioquímico-Farmacêutica, São Paulo, SP, Brazil.
Carolina A FigueroaUniversidad de La Frontera, Facultad de Ingeniería, Ciencias y Administración, Departamento de Ingeniería Química, Temuco, Chile; Universidade de São Paulo, Faculdade de Ciências Farmacêuticas, Departamento de Tecnologia Bioquímico-Farmacêutica, São Paulo, SP, Brazil.
Adalberto PessoaUniversidade de São Paulo, Faculdade de Ciências Farmacêuticas, Departamento de Tecnologia Bioquímico-Farmacêutica, São Paulo, SP, Brazil.
Jorge G FaríasUniversidad de La Frontera, Facultad de Ingeniería, Ciencias y Administración, Departamento de Ingeniería Química, Temuco, Chile. Electronic address: jorge.farias@ufrontera.cl.
Universidade de São Paulo · BRUniversidad de La Frontera · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The growth of yeasts in culture media can be affected by many factors. For example, methanol can be metabolized by other pathways to produce ethanol, which acts as an inhibitor of the heterologous protein production pathway; oxygen concentration can generate aerobic or anaerobic environments and affects the fermentation rate; and temperature affects the central carbon metabolism and stress response protein folding. The main goal of this study was determine the implication of free fatty acids on the production of heterologous proteins in different culture conditions in cultures of Pichia pastoris. We evaluated cell viability using propidium iodide by flow cytometry and thiobarbituric acid reactive substances to measure cell membrane damage. The results indicate that the use of low temperatures and low methanol concentrations favors the decrease in lipid peroxidation in the transition phase from glycerol to methanol. In addition, a temperature of 14°C+1%M provided the most stable viability. By contrast, the temperature of 18°C+1.5%M favored the production of a higher antibody fragment concentration. In summary, these results demonstrate that the decrease in lipid peroxidation is related to an increased production of free fatty acids.

Indexed as

Culture MediaFatty Acids, NonesterifiedFermentationGlycerolMethanolPichiaRecombinant ProteinsTemperatureCulture MediaFatty Acids, NonesterifiedGlycerolMethanolRecombinant ProteinsLipid peroxidationPyruvate pathwayYeast

Identifiers

PMID29705163
PMCPMC6175731
OpenAlexW2798239217

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.