Evidence map›Paper›PMID 27903279›Full record

ArticleMalaria journal2016

In vitro and in vivo anti-malarial activity of novel harmine-analog heat shock protein 90 inhibitors: a possible partner for artemisinin.

Abebe Genetu Bayih, Asongna Folefoc, Abu Naser Mohon, Scott Eagon, Marc Anderson, Dylan R Pillai

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
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  4. The possibilities and challenges associated with selective targetingTransactions of the Royal Society of South Africa. Royal Society of South Africa · 2025
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  5. TargetingVaccines · 2024
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  7. mBio · 2024
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  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. General Structural and Functional Features of Molecular Chaperones.Advances in experimental medicine and biology · 2021
    Article
  14. Role of Hsp90 in Plasmodium falciparum Malaria.Advances in experimental medicine and biology · 2021
    Article
  15. Frontiers in microbiology · 2021
    Article
  16. Novel Harmicines with Improved Potency againstMolecules (Basel, Switzerland) · 2020
    Article
  17. Review
  18. Article
  19. Novobiocin-ferrocene conjugates possessing anticancer and antiplasmodial activity independent of HSP90 inhibition.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2019
    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 2 countries.

Abebe Genetu BayihDepartment of Pathology and Laboratory Medicine, MIID and Medicine, University of Calgary, Calgary, AB, Canada. abebegenetu@gmail.com.
Asongna FolefocDepartment of Pathology and Laboratory Medicine, MIID and Medicine, University of Calgary, Calgary, AB, Canada.
Abu Naser MohonDepartment of Pathology and Laboratory Medicine, MIID and Medicine, University of Calgary, Calgary, AB, Canada.
Scott EagonDepartment of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA, USA.
Marc AndersonDepartment of Chemistry and Biochemistry, San Francisco State University, San Francisco, CA, USA.
Dylan R PillaiDepartment of Pathology and Laboratory Medicine, MIID and Medicine, University of Calgary, Calgary, AB, Canada.
University of Calgary · CACalifornia Polytechnic State University · USSan Francisco State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe emergence of artemisinin-resistant Plasmodium falciparum strains poses a serious challenge to the control of malaria. This necessitates the development of new anti-malarial drugs. Previous studies have shown that the natural beta-carboline alkaloid harmine is a promising anti-malarial agent targeting the P. falciparum heat-shock protein 90 (PfHsp90). The aim of this study was to test the anti-malarial activity of harmine analogues.

methodsForty-two harmine analogues were synthesized and the binding of these analogues to P. falciparum heat shock protein 90 was investigated. The in vitro anti-malarial activity of two of the analogues, 17A and 21A, was evaluated using a 72-h growth inhibition assay. The in vivo anti-malarial activity was tested in Plasmodium berghei infection of BALB/c mice. The potential of 21A for a combination treatment with artemisinin was evaluated using in vivo combination study with dihydro-artemisinin in BALB/c mice. Cytotoxicity of the harmine analogues was tested in vitro using HepG2 and HeLa cell lines.

results17A and 21A bound to PfHsp90 with average IC

conclusionA novel and non-toxic harmine analogue has been synthesized which binds to PfHsp90 protein, inhibits P. falciparum in vitro at micromolar concentration, reduces parasitaemia and prolongs survival of P. berghei-infected mice with an additive anti-malarial effect when combined with DHA.

Indexed as

Drug SynergismAnimalsAntimalarialsArtemisininsCell LineCell SurvivalDisease Models, AnimalFemaleHarmineHSP90 Heat-Shock ProteinsHumansInhibitory Concentration 50MalariaMice, Inbred BALB CPlasmodium bergheiPlasmodium falciparumAntimalarialsartemisininArtemisininsHarmineHSP90 Heat-Shock ProteinsProtozoan ProteinsAnti-malarial drugsHeat-shock protein 90MalariaPlasmodium falciparum

Identifiers

PMID27903279
PMCPMC5131496
OpenAlexW2558321965

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.