Evidence map›Paper›PMID 27001812›Full record

ArticleAntimicrobial agents and chemotherapy2016

In Vitro and In Vivo Activities of 2,3-Diarylsubstituted Quinoxaline Derivatives against Leishmania amazonensis.

Vanessa Kaplum, Juliana Cogo, Diego Pereira Sangi, Tânia Ueda-Nakamura, Arlene Gonçalves Corrêa, Celso Vataru Nakamura

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

17 citing papers in PubMed, 38 citations in OpenAlex.

  1. Characterization of the Effect ofInternational journal of molecular sciences · 2024
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  6. Proteomic and Functional Analysis of the Effects of Quinoxaline Derivatives onFrontiers in cellular and infection microbiology · 2022
    Article
  7. Antibiotics (Basel, Switzerland) · 2021
    Article
  8. Epigallocathechin-Frontiers in cellular and infection microbiology · 2021
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  9. Review
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  12. Activity and Cell-Death Pathway inFrontiers in cellular and infection microbiology · 2019
    Article
  13. Article
  14. Article
  15. Acyclic Sesquiterpenes from the Fruit Pericarp ofEvidence-based complementary and alternative medicine : eCAM · 2017
    Article
  16. Induction of Early Autophagic Process onFrontiers in microbiology · 2017
    Article
  17. 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

6 authors at 3 institutions in 1 country.

Vanessa KaplumPrograma de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brazil.
Juliana CogoPrograma de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brazil.
Diego Pereira SangiInstituto de Ciências Exatas, Universidade Federal Fluminense, Volta Redonda, RJ, Brazil Laboratório de Síntese de Produtos Naturais, Departamento de Química, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Tânia Ueda-NakamuraPrograma de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brazil.
Arlene Gonçalves CorrêaLaboratório de Síntese de Produtos Naturais, Departamento de Química, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Celso Vataru NakamuraPrograma de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brazil cvnakamura@uem.br.
Universidade Estadual de Maringá · BRUniversidade Federal de São Carlos · BRUniversidade Federal Fluminense · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leishmaniasis is endemic in 98 countries and territories worldwide. The therapies available for leishmaniasis have serious side effects, thus prompting the search for new therapies. The present study investigated the antileishmanial activities of 2,3-diarylsubstituted quinoxaline derivatives against Leishmania amazonensis The antiproliferative activities of 6,7-dichloro-2,3-diphenylquinoxaline (LSPN329) and 2,3-di-(4-methoxyphenyl)-quinoxaline (LSPN331) against promastigotes and intracellular amastigotes were assessed, and the cytotoxicities of LSPN329 and LSPN331 were determined. Morphological and ultrastructural alterations were examined by electron microscopy, and biochemical alterations, reflected by the mitochondrial membrane potential (ΔΨm), mitochondrial superoxide anion (O2·(-)) concentration, the intracellular ATP concentration, cell volume, the level of phosphatidylserine exposure on the cell membrane, cell membrane integrity, and lipid inclusions, were evaluated. In vivo antileishmanial activity was evaluated in a murine cutaneous leishmaniasis model. Compounds LSPN329 and LSPN331 showed significant selectivity for promastigotes and intracellular amastigotes and low cytotoxicity. In promastigotes, ultrastructural alterations were observed, including an increase in lipid inclusions, concentric membranes, and intense mitochondrial swelling, which were associated with hyperpolarization of ΔΨm, an increase in the O2·(-) concentration, decreased intracellular ATP levels, and a decrease in cell volume. Phosphatidylserine exposure and DNA fragmentation were not observed. The cellular membrane remained intact after treatment. Thus, the multifactorial response that was responsible for the cellular collapse of promastigotes was based on intense mitochondrial alterations. BALB/c mice treated with LSPN329 or LSPN331 showed a significant decrease in lesion thickness in the infected footpad. Therefore, the antileishmanial activity and mitochondrial mechanism of action of LSPN329 and LSPN331 and the decrease in lesion thickness in vivo brought about by LSPN329 and LSPN331 make them potential candidates for new drug development for the treatment of leishmaniasis.

Indexed as

Adenosine TriphosphateAnimalsAntiprotozoal AgentsCell MembraneLeishmaniaLeishmaniasisMaleMembrane Potential, MitochondrialMiceMice, Inbred BALB CParasitic Sensitivity TestsPhosphatidylserinesQuinoxalinesSuperoxides2,3-di-(4-methoxyphenyl)-quinoxaline6,7-dichloro-2,3-diphenylquinoxalineAdenosine TriphosphateAntiprotozoal AgentsPhosphatidylserinesQuinoxalinesSuperoxides

Identifiers

PMID27001812
PMCPMC4879393
OpenAlexW2332801893

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.