Evidence map›Paper›PMID 24662071›Full record

ArticleMolecules (Basel, Switzerland)2014

Structure-activity relationship study of sesquiterpene lactones and their semi-synthetic amino derivatives as potential antitrypanosomal products.

Stefanie Zimmermann, Gerda Fouché, Maria De Mieri, Yukiko Yoshimoto, Toyonobu Usuki, Rudzani Nthambeleni, Christopher J Parkinson, Christiaan van der Westhuyzen, Marcel Kaiser, Matthias Hamburger and 1 more

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Plant-Derived Terpenes as Emerging Therapeutics Against Schistosomiasis.International journal of molecular sciences · 2026
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Sesquiterpene lactones ofChinese herbal medicines · 2021
    Review
  9. Sesquiterpene Lactones fromMolecules (Basel, Switzerland) · 2020
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. 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

11 authors at 5 institutions in 4 countries.

Stefanie ZimmermannDepartment Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland. marcel.kaiser@unibas.ch.
Gerda FouchéCSIR Biosciences, Meiring Naudé Road, Brummeria, Pretoria 0001, Gauteng, South Africa. gfouche@csir.co.za.
Maria De MieriDepartment Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland. maria.demieri@unibas.ch.
Yukiko YoshimotoDepartment of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyoda, Tokyo 102-8554, Japan. tkmh-937@sophia.ac.jp.
Toyonobu UsukiDepartment of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyoda, Tokyo 102-8554, Japan. t-usuki@sophia.ac.jp.
Rudzani NthambeleniCSIR Biosciences, Meiring Naudé Road, Brummeria, Pretoria 0001, Gauteng, South Africa. rnthambeleni@csir.co.za.
Christopher J ParkinsonSchool of Biomedical Sciences, Charles Sturt University, Orange, NSW 2800, Australia. cparkinson@csu.edu.au.
Christiaan van der WesthuyzenCSIR Biosciences, Meiring Naudé Road, Brummeria, Pretoria 0001, Gauteng, South Africa. cwvdwesthuyzen@csir.co.za.
Marcel KaiserDepartment Medical Parasitology & Infection Biology, Swiss TPH, Socinstrasse 57, 4000 Basel, Switzerland. marcel.kaiser@unibas.ch.
Matthias HamburgerDepartment Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland. matthias.hamburger@unibas.ch.
Michael AdamsDepartment Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland. michael.adams78@gmail.com.
Council for Scientific and Industrial Research · ZAUniversity of Basel · CHSophia University · JPSwiss Tropical and Public Health Institute · CHCharles Sturt University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sesquiterpene lactones (STLs) are natural products that have potent antitrypanosomal activity in vitro and, in the case of cynaropicrin, also reduce parasitemia in the murine model of trypanosomiasis. To explore their structure-antitrypanosomal activity relationships, a set of 34 natural and semi-synthetic STLs and amino-STLs was tested in vitro against T. b. rhodesiense (which causes East African sleeping sickness) and mammalian cancer cells (rat bone myoblast L6 cells). It was found that the α-methylene-γ-lactone moiety is necessary for both antitrypanosomal effects and cytotoxicity. Antitrypanosomal selectivity is facilitated by 2-(hydroxymethyl)acrylate or 3,4-dihydroxy-2-methylenebutylate side chains, and by the presence of cyclopentenone rings. Semi-synthetic STL amines with morpholino and dimethylamino groups showed improved in vitro activity over the native STLs. The dimethylamino derivative of cynaropicrin was prepared and tested orally in the T. b. rhodesiense acute mouse model, where it showed reduced toxicity over cynaropicrin, but also lost antitrypanosomal activity.

Indexed as

Structure-Activity RelationshipAnimalsCell LineDisease Models, AnimalFemaleLactonesMiceParasitic Sensitivity TestsRatsSesquiterpenesTrypanocidal AgentsTrypanosoma brucei rhodesienseTrypanosomiasis, AfricanLactonesSesquiterpenesTrypanocidal Agents

Identifiers

PMID24662071
PMCPMC6271975
OpenAlexW2048502835

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.