Evidence map›Paper›PMID 29806577›Full record

ArticleParasitology2018

Lopinavir, an HIV-1 peptidase inhibitor, induces alteration on the lipid metabolism of Leishmania amazonensis promastigotes.

Karina M Rebello, Valter V Andrade-Neto, Aline A Zuma, Maria Cristina M Motta, Claudia Regina B Gomes, Marcus Vinícius N de Souza, Geórgia C Atella, Marta H Branquinha, André L S Santos, Eduardo Caio Torres-Santos and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Parasitology, 2018. 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
2.3field-weighted citation impact, top 12% 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

8 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Miltefosine-Lopinavir Combination Therapy AgainstFrontiers in cellular and infection microbiology · 2019
    Article
  8. 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

11 authors at 3 institutions in 1 country.

Karina M RebelloLaboratório de Estudos Integrados em Protozoologia,Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ),Rio de Janeiro,Brazil.
Valter V Andrade-NetoLaboratório de Bioquímica de Tripanosomatídeos,Instituto Oswaldo Cruz, FIOCRUZ,Rio de Janeiro,Brazil.
Aline A ZumaLaboratório de Ultraestrutura Celular Hertha Meyer,Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ),Rio de Janeiro,Brazil.
Maria Cristina M MottaLaboratório de Ultraestrutura Celular Hertha Meyer,Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ),Rio de Janeiro,Brazil.
Claudia Regina B GomesLaboratório de Síntese de Fármacos, Farmanguinhos, FIOCRUZ,Rio de Janeiro,Brazil.
Marcus Vinícius N de SouzaLaboratório de Síntese de Fármacos, Farmanguinhos, FIOCRUZ,Rio de Janeiro,Brazil.
Geórgia C AtellaInstituto de Bioquímica Médica, UFRJ,Rio de Janeiro,Brazil.
Marta H BranquinhaLaboratório de Investigação de Peptidases,Instituto de Microbiologia Paulo de Góes, UFRJ,Rio de Janeiro,Brazil.
André L S SantosLaboratório de Investigação de Peptidases,Instituto de Microbiologia Paulo de Góes, UFRJ,Rio de Janeiro,Brazil.
Eduardo Caio Torres-SantosLaboratório de Bioquímica de Tripanosomatídeos,Instituto Oswaldo Cruz, FIOCRUZ,Rio de Janeiro,Brazil.
Claudia M d'Avila-LevyLaboratório de Estudos Integrados em Protozoologia,Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ),Rio de Janeiro,Brazil.ORCID 0000-0001-8042-4695
Fundação Oswaldo Cruz · BRUniversidade Federal do Rio de Janeiro · BRUniversidade do Estado do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The anti-leishmania effects of HIV peptidase inhibitors (PIs) have been widely reported; however, the biochemical target and mode of action are still a matter of controversy in Leishmania parasites. Considering the possibility that HIV-PIs induce lipid accumulation in Leishmania amazonensis, we analysed the effects of lopinavir on the lipid metabolism of L. amazonensis promastigotes. To this end, parasites were treated with lopinavir at different concentrations and analysed by fluorescence microscopy and spectrofluorimetry, using a fluorescent lipophilic marker. Then, the cellular ultrastructure of treated and control parasites was analysed by transmission electron microscopy (TEM), and the lipid composition was investigated by thin-layer chromatography (TLC). Finally, the sterol content was assayed by gas chromatography-mass spectrometry (GC/MS). TEM analysis revealed an increased number of lipid inclusions in lopinavir-treated cells, which was accompanied by an increase in the lipophilic content, in a dose-dependent manner. TLC and GC-MS analysis revealed a marked increase of cholesterol-esters and cholesterol. In conclusion, lopinavir-induced lipid accumulation and affected lipid composition in L. amazonensis in a concentration-response manner. These data contribute to a better understanding of the possible mechanisms of action of this HIV-PI in L. amazonensis promastigotes. The concerted action of lopinavir on this and other cellular processes, such as the direct inhibition of an aspartyl peptidase, may be responsible for the arrested development of the parasite.

Indexed as

CholesterolChromatography, Thin LayerGas Chromatography-Mass SpectrometryHIV Protease InhibitorsLeishmania mexicanaLipid MetabolismLipidsLopinavirMicroscopy, Electron, TransmissionSterolsCholesterolHIV Protease InhibitorsLipidsLopinavirSterolsAspartylchemotherapyco-infectionleishmaniasistrypanosomatids

Identifiers

PMID29806577
PMCPMC6137378
OpenAlexW2806705836

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.