Evidence map›Paper›PMID 19015962›Full record

ArticlePharmaceutical research2009

R(+)-methanandamide-induced apoptosis of human cervical carcinoma cells involves a cyclooxygenase-2-dependent pathway.

Karin Eichele, Robert Ramer, Burkhard Hinz

Abstract read
PubMed Publisher
In one paragraph

Article in Pharmaceutical research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
2.1field-weighted citation impact, top 14% 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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. The Impact of TRPV1 on Cancer Pathogenesis and Therapy: A Systematic Review.International journal of biological sciences · 2021
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Molecular Mechanism of Cannabinoids in Cancer Progression.International journal of molecular sciences · 2021
    Review
  11. Review
  12. Article
  13. Cannabinoids in Gynecological Diseases.Medical cannabis and cannabinoids · 2019
    Review
  14. Review
  15. Review
  16. Review
  17. An update on PPAR activation by cannabinoids.British journal of pharmacology · 2016
    Review
  18. Article
  19. Article
  20. 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

3 authors at 1 institution in 1 country.

Karin EicheleInstitute for Toxicology and Pharmacology, University of Rostock, Schillingallee 70, D-18057, Rostock, Germany.
Robert Ramer
Burkhard Hinz
University of Rostock · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCannabinoids have received renewed interest due to their antitumorigenic effects. Using human cervical carcinoma cells (HeLa), this study investigates the role of cyclooxygenase-2 (COX-2) in apoptosis elicited by the endocannabinoid analog R(+)-methanandamide (MA).

methodsCOX-2 expression was assessed by RT-PCR and Western blotting. PGE2/PGD2 levels in cell culture supernatants and DNA fragmentation were measured by ELISA.

resultsMA led to an induction of COX-2 expression, PGD2 and PGE2 synthesis. Cells were significantly less sensitive to MA-induced apoptosis when COX-2 was suppressed by siRNA or the selective COX-2 inhibitor NS-398. COX-2 expression and apoptosis by MA was also prevented by the ceramide synthase inhibitor fumonisin B1, but not by antagonists to cannabinoid receptors and TRPV1. In line with the established role of peroxisome proliferator-activated receptor gamma (PPARgamma) in the proapoptotic action of PGs of the D and J series, inhibition of MA-induced apoptosis was also achieved by siRNA targeting lipocalin-type PGD synthase (L-PGDS) or PPARgamma. A role of COX-2 and PPARgamma in MA-induced apoptosis was confirmed in another human cervical cancer cell line (C33A) and in human lung carcinoma cells (A549).

conclusionThis study demonstrates COX-2 induction and synthesis of L-PGDS-derived, PPARgamma-activating PGs as a possible mechanism of apoptosis by MA.

Indexed as

Antineoplastic AgentsApoptosisArachidonic AcidsCyclooxygenase 2Cyclooxygenase 2 InhibitorsDinoprostoneDNA FragmentationDose-Response Relationship, DrugFemaleFumonisinsGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHeLa CellsHumansIntramolecular OxidoreductasesLipocalinsAntineoplastic AgentsArachidonic AcidsCyclooxygenase 2Cyclooxygenase 2 Inhibitorsdihydroceramide desaturaseDinoprostonefumonisin B1FumonisinsIntramolecular OxidoreductasesLipocalinsmethanandamideN-(2-cyclohexyloxy-4-nitrophenyl)methanesulfonamideNitrobenzenesOxidoreductasesPPAR gammaProstaglandin D2prostaglandin R2 D-isomerasePTGS2 protein, humanRNA, MessengerRNA, Small InterferingSulfonamides

Identifiers

PMID19015962
OpenAlexW2087557532

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.