Evidence map›Paper›PMID 29753319›Full record

ArticleMicrobial cell factories2018

Biotransformation of steroids by entomopathogenic strains of Isaria farinosa.

Ewa Kozłowska, Natalia Hoc, Jordan Sycz, Monika Urbaniak, Monika Dymarska, Jakub Grzeszczuk, Edyta Kostrzewa-Susłow, Łukasz Stępień, Elżbieta Pląskowska, Tomasz Janeczko

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

21 citing papers in PubMed, 40 citations in OpenAlex.

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  17. Secondary Metabolites and the Risks ofMolecules (Basel, Switzerland) · 2019
    Review
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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 2 institutions in 2 countries.

Ewa KozłowskaDepartment of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland. e.a.kozlowska@gmail.com.
Natalia HocDepartment of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland.
Jordan SyczDepartment of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland.
Monika UrbaniakDepartment of Pathogen Genetics and Plant Resistance, Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479, Poznań, Poland.
Monika DymarskaDepartment of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland.
Jakub GrzeszczukDepartment of Plant Protection, Plant Pathology and Mycology Division, Wrocław University of Environmental and Life Sciences, pl. Grunwaldzki 24a, 50-363, Wrocław, Poland.
Edyta Kostrzewa-SusłowDepartment of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland.
Łukasz StępieńDepartment of Pathogen Genetics and Plant Resistance, Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479, Poznań, Poland.
Elżbieta PląskowskaDepartment of Plant Protection, Plant Pathology and Mycology Division, Wrocław University of Environmental and Life Sciences, pl. Grunwaldzki 24a, 50-363, Wrocław, Poland.
Tomasz JaneczkoDepartment of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland. janeczko13@interia.pl.ORCID http://orcid.org/0000-0002-9757-6684
Wrocław University of Environmental and Life Sciences · PLInstitute of Plant Genetics, Polish Academy of Sciences · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSteroid compounds are very interesting substrates for biotransformation due to their high biological activity and a high number of inactivated carbons which make chemical modification difficult. Microbial transformation can involve reactions which are complicated and uneconomical in chemical synthesis, and searching for a new effective biocatalyst is necessary. The best known entomopathogenic species used in steroid modification is Beauveria bassiana. In this study we tested the ability of Isaria farinosa, another entomopathogenic species, to transform several steroids.

resultsTwelve strains of the entomopathogenic filamentous fungus Isaria farinosa, collected in abandoned mines located in the area of the Lower Silesian Voivodeship, Poland, from insects' bodies covered by fungus, were used as a biocatalyst. All the tested strains effectively transformed dehydroepiandrosterone (DHEA). We observed 7α- and 7β-hydroxy derivatives as well as changes in the percentage composition of the emerging products. Due to the similar metabolism of DHEA in all tested strains, one of them was selected for further investigation. In the culture of the selected strain, Isaria farinosa KCh KW1.1, transformations of androstenediol, androstenedione, adrenosterone, 17α-methyltestosterone, 17β-hydroxyandrost-1,4,6-triene-3-one and progesterone were performed. All the substrates were hydroxylated with high yield and stereoselectivity. We obtained 6β-hydroxyandrost-4-ene-3,11,17-trione, 15α,17β-dihydroxy-6β,7β-epoxyandrost-1,4-diene-3-one and 6β,11α-dihydroxyprogesterone. There is no evidence of either earlier microbial transformation of 17β-hydroxyandrost-1,4,6-triene-3-one or new epoxy derivatives.

conclusionsIsaria farinosa has a broad spectrum of highly effective steroid hydroxylases. The obtained 7-hydroxydehydroepiandrosterone has proven high biological activity and can be used in Alzheimer's disease and as a key intermediate in the synthesis of aldosterone antagonists. Transformation of progesterone leads to high yield of 6β,11α-dihydroxyprogesterone and it is worth further study.

Indexed as

BiotransformationDehydroepiandrosteroneFungal ProteinsProgesteroneSteroidsDehydroepiandrosteroneFungal ProteinsProgesteroneSteroidsBiotransformationDHEAHydroxylationIsaria farinosaProgesterone

Identifiers

PMID29753319
PMCPMC5948769
OpenAlexW2801396801

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.