Evidence map›Paper›PMID 21761157›Full record

ArticleBreast cancer research and treatment2012

Frondoside A inhibits breast cancer metastasis and antagonizes prostaglandin E receptors EP4 and EP2.

Xinrong Ma, Namita Kundu, Peter D Collin, Olga Goloubeva, Amy M Fulton

Abstract read
In one paragraph

Article in Breast cancer research and treatment, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
6.0field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
  2. Review
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  4. Article
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  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Northern Sea Cucumber (Marine drugs · 2020
    Review
  15. Prostaglandin ECancer science · 2020
    Article
  16. Article
  17. Review
  18. Pharmacological Potential of Sea Cucumbers.International journal of molecular sciences · 2018
    Review
  19. Article
  20. 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

5 authors at 3 institutions in 1 country.

Xinrong MaUniversity of Maryland Greenebaum Cancer Center, Baltimore, MD, USA.
Namita Kundu
Peter D Collin
Olga Goloubeva
Amy M Fulton
U-M Rogel Cancer CenterUniversity of Maryland, Baltimore · USCoastside Bio Resources (United States) · US

Funding

UNIVERSITY OF MARYLAND GREENEBAUM CANCER CENTERSUPPORT GRANTP30CA134274 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI FEYRUZ VIRGILIA RASSOOL · 2008 to 2026
$51.0M
Cyclooxygenase Modulators of Immune Function in Breast CancerR01CA120278 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI FULTON, AMY M. · 2007 to 2011
$1.5M
Targeting the COX-2 Pathway to Reduce Breast Cancer MortalityI01BX000169 · VA · BALTIMORE VA MEDICAL CENTER · PI FULTON, AMY M. · 2009 to 2020
–
BLRD VA I01 BX000169NCI NIH HHS P30 CA134274NCI NIH HHS R01 CA120278
6 · The paper itself

Abstract

Frondoside A, derived from the sea cucumber Cucumaria frondosa has demonstrable anticancer activity in several models, however, the ability of Frondoside A to affect tumor metastasis has not been reported. Using a syngeneic murine model of metastatic breast cancer, we now show that Frondoside A has potent antimetastatic activity. Frondoside A given i.p. to mice bearing mammary gland-implanted mammary tumors, inhibits spontaneous tumor metastasis to the lungs. The elevated Cyclooxygenase-2 activity in many malignancies promotes tumor growth and metastasis by producing high levels of PGE(2) which acts on the prostaglandin E receptors, chiefly EP4 and EP2. We examined the ability of Frondoside A to modulate the functions of these EP receptors. We now show that Frondoside A antagonizes the prostaglandin E receptors EP2 and EP4. (3)H-PGE(2) binding to recombinant EP2 or EP4-expressing cells was inhibited by Frondoside A at low μM concentrations. Likewise, EP4 or EP2-linked activation of intracellular cAMP as well as EP4-mediated ERK1/2 activation were also inhibited by Frondoside A. Consistent with the antimetastatic activity observed in vivo, migration of tumor cells in vitro in response to EP4 or EP2 agonists was also inhibited by Frondoside A. These studies identify a new function for an agent with known antitumor activity, and show that the antimetastatic activity may be due in part to a novel mechanism of action. These studies add to the growing body of evidence that Frondoside A may be a promising new agent with potential to treat cancer and may also represent a potential new modality to antagonize EP4.

Indexed as

AnimalsAntineoplastic AgentsBreast NeoplasmsCell Line, TumorCell MovementCell ProliferationCyclic AMPFemaleGlycosidesHumansInhibitory Concentration 50Lung NeoplasmsMAP Kinase Signaling SystemMiceMice, Inbred BALB CReceptors, Prostaglandin E, EP2 SubtypeAntineoplastic AgentsCyclic AMPfrondoside AGlycosidesPTGER2 protein, humanReceptors, Prostaglandin E, EP2 SubtypeReceptors, Prostaglandin E, EP4 SubtypeTriterpenes

Identifiers

PMID21761157
PMCPMC3725620
OpenAlexW1981771577

What OpenQuestion holds

Textmetadata
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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.