Evidence map›Paper›PMID 16835450›Full record

ArticleEukaryotic cell2006

Farnesyl diphosphate synthase is a cytosolic enzyme in Leishmania major promastigotes and its overexpression confers resistance to risedronate.

Aurora Ortiz-Gómez, Carmen Jiménez, Antonio M Estévez, Juana Carrero-Lérida, Luis M Ruiz-Pérez, Dolores González-Pacanowska

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed, 34 citations in OpenAlex.

  1. Research in pharmaceutical sciences · 2026
    Article
  2. Unravelling the myth surrounding sterol biosynthesis as plausible target for drug design against leishmaniasis.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2021
    Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Therapeutic switching in leishmania chemotherapy: a distinct approach towards unsatisfied treatment needs.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2011
    Article
  12. Rewiring and regulation of cross-compartmentalized metabolism in protists.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2010
    Review
  13. Sterol Biosynthesis Pathway as Target for Anti-trypanosomatid Drugs.Interdisciplinary perspectives on infectious diseases · 2009
    Article
  14. Article
  15. Article
  16. 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 1 country.

Aurora Ortiz-GómezInstituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, Avda. del Conocimiento s/n, Parque Tecnológico Ciencias de la Salud, 18100 Armilla, Granada, Spain.
Carmen Jiménez
Antonio M Estévez
Juana Carrero-Lérida
Luis M Ruiz-Pérez
Dolores González-Pacanowska
Consejo Superior de Investigaciones Científicas · ESInstituto de Parasitología y Biomedicina "López - Neyra" · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Farnesyl diphosphate synthase is the most likely molecular target of aminobisphosphonates (e.g., risedronate), a set of compounds that have been shown to have antiprotozoal activity both in vitro and in vivo. This protein, together with other enzymes involved in isoprenoid biosynthesis, is an attractive drug target, yet little is known about the compartmentalization of the biosynthetic pathway. Here we show the intracellular localization of the enzyme in wild-type Leishmania major promastigote cells and in transfectants overexpressing farnesyl diphosphate synthase by using purified antibodies generated towards a homogenous recombinant Leishmania major farnesyl diphosphate synthase protein. Indirect immunofluorescence, together with immunoelectron microscopy, indicated that the enzyme is mainly located in the cytoplasm of both wild-type cells and transfectants. Digitonin titration experiments also confirmed this observation. Hence, while the initial step of isoprenoid biosynthesis catalyzed by 3-hydroxy-3-methylglutaryl-coenzyme A reductase is located in the mitochondrion, synthesis of farnesyl diphosphate by farnesyl diphosphate synthase is a cytosolic process. Leishmania major promastigote transfectants overexpressing farnesyl diphosphate synthase were highly resistant to risedronate, and the degree of resistance correlated with the increase in enzyme activity. Likewise, when resistance was induced by stepwise selection with the drug, the resulting resistant promastigotes exhibited increased levels of farnesyl diphosphate synthase. The overproduction of protein under different conditions of exposure to risedronate further supports the hypothesis that this enzyme is the main target of aminobisphosphonates in Leishmania cells.

Indexed as

AnimalsCytosolDrug ResistanceEtidronic AcidGeranyltranstransferaseLeishmania majorRecombinant ProteinsRisedronic AcidSelection, GeneticTissue DistributionTransfectionEtidronic AcidGeranyltranstransferaseRecombinant ProteinsRisedronic Acid

Identifiers

PMID16835450
PMCPMC1489282
OpenAlexW2147015344

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.