Evidence map›Paper›PMID 22348509›Full record

ArticleJournal of pineal research2012

Ubiquitin proteasome system and the atypical kinase PfPK7 are involved in melatonin signaling in Plasmodium falciparum.

Fernanda C Koyama, Ramira Y Ribeiro, Julio L Garcia, Mauro F Azevedo, Debopam Chakrabarti, Célia R S Garcia

Open access · greenAbstract read
In one paragraph

Article in Journal of pineal research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Melatonin as a Circadian Marker forInternational journal of molecular sciences · 2024
    Review
  5. Review
  6. Review
  7. Article
  8. In vitro and in silico assessment of new beta amino ketones with antiplasmodial activity.Revista da Sociedade Brasileira de Medicina Tropical · 2022
    Article
  9. Article
  10. Evidence of G-Protein-Coupled Receptors (GPCR) in the Parasitic ProtozoaInternational journal of molecular sciences · 2021
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
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 2 institutions in 2 countries.

Fernanda C KoyamaDepartamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil.
Ramira Y Ribeiro
Julio L Garcia
Mauro F Azevedo
Debopam Chakrabarti
Célia R S Garcia
Universidade de São Paulo · BRUniversity of Central Florida · US

Funding

Chemical Genetics of Plasmodium KinasesR01AI073795 · NIAID · UNIVERSITY OF CENTRAL FLORIDA · PI CHAKRABARTI, DEBOPAM · 2008 to 2010
$1.1M
NIAID NIH HHS AI73795NIAID NIH HHS R01 AI073795
6 · The paper itself

Abstract

We previously reported that melatonin modulates the Plasmodium falciparum erythrocytic cycle by increasing schizont stage population as well as diminishing ring stage population. In addition, the importance of calcium and cAMP in melatonin signaling pathway in P. falciparum was also demonstrated. Nevertheless, the molecular effectors of the indoleamine signaling pathway remain elusive. We now demonstrate by real-time PCR that melatonin treatment up-regulates genes related to ubiquitin/proteasome system (UPS) components and that luzindole, a melatonin receptor antagonist, inhibits UPS transcription modulation. We also show that protein kinase PfPK7, a P. falciparum orphan kinase, plays a crucial role in the melatonin transduction pathway, since following melatonin treatment of P. falciparum parasites where pfpk7 gene is disrupted (pfpk7(-) parasites) (i) the ratio of asexual stages remain unchanged, (ii) the increase in cytoplasmatic calcium in response to melatonin was strongly diminished and (iii) up-regulation of UPS genes did not occur. The wild-type melatonin-induced alterations in cell cycle features, calcium rise and UPS gene transcription were restored by re-introduction of a functional copy of the pfpk7 gene in the pfpk7(-) parasites.

Indexed as

AnimalsMalaria, FalciparumMelatoninMitogen-Activated Protein Kinase KinasesPlasmodium falciparumProteasome Endopeptidase ComplexProtozoan ProteinsReal-Time Polymerase Chain ReactionSignal TransductionUbiquitinMelatoninMitogen-Activated Protein Kinase KinasesPK7 protein, Plasmodium falciparumProteasome Endopeptidase ComplexProtozoan ProteinsUbiquitin

Identifiers

PMID22348509
PMCPMC3360131
OpenAlexW2160493416

What OpenQuestion holds

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LicenceTDM
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.