Evidence map›Paper›PMID 21134266›Full record

ArticleMicrobial cell factories2010

High yield expression of leptospirosis vaccine candidates LigA and LipL32 in the methylotrophic yeast Pichia pastoris.

Daiane D Hartwig, Thaís L Oliveira, Fabiana K Seixas, Karine M Forster, Caroline Rizzi, Cláudia P Hartleben, Alan J A McBride, Odir A Dellagostin

Abstract read
In one paragraph

Article in Microbial cell factories, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

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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

8 authors.

Daiane D HartwigNúcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
Thaís L Oliveira
Fabiana K Seixas
Karine M Forster
Caroline Rizzi
Cláudia P Hartleben
Alan J A McBride
Odir A Dellagostin

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeptospirosis, a zoonosis caused by Leptospira spp., is recognized as an emergent infectious disease. Due to the lack of adequate diagnostic tools, vaccines are an attractive intervention strategy. Recombinant proteins produced in Escherichia coli have demonstrated promising results, albeit with variable efficacy. Pichia pastoris is an alternative host with several advantages for the production of recombinant proteins.

resultsThe vaccine candidates LigANI and LipL32 were cloned and expressed in P. pastoris as secreted proteins. Large-scale expression resulted in a yield of 276 mg/L for LigANI and 285 mg/L for LipL32. The recombinant proteins were glycosylated and were recognized by antibodies present in the sera of patients with severe leptospirosis.

conclusionsThe expression of LigANI and LipL32 in P. pastoris resulted in a significant increase in yield compared to expression in E. coli. In addition, the proteins were secreted, allowing for easy purification, and retained the antigenic characteristics of the native proteins, demonstrating their potential application as subunit vaccine candidates.

Indexed as

Bacterial Outer Membrane ProteinsBacterial ProteinsBacterial VaccinesGlycosylationHumansLeptospiraLeptospirosisLipoproteinsPichiaRecombinant ProteinsVaccines, SubunitBacterial Outer Membrane ProteinsBacterial ProteinsBacterial VaccinesLipL32 protein, LeptospiraLipoproteinsRecombinant ProteinsVaccines, Subunit

Identifiers

PMID21134266
PMCPMC3004844

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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.