Evidence map›Paper›PMID 24688050›Full record

ArticleMolecular cancer therapeutics2014

Targeting multiple key signaling pathways in melanoma using leelamine.

Raghavendra Gowda, SubbaRao V Madhunapantula, Omer F Kuzu, Arati Sharma, Gavin P Robertson

Open access · greenAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

29 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
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  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Leelamine suppresses cMyc expression in prostate cancer cellsJournal of cancer metastasis and treatment · 2021
    Article
  13. Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Nanoliposomal delivery of cytosolic phospholipase ANanomedicine : nanotechnology, biology, and medicine · 2018
    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

5 authors at 2 institutions in 1 country.

Raghavendra GowdaAuthors' Affiliations: Departments of Pharmacology, Penn State Hershey Melanoma Center, Penn State Melanoma Therapeutics Program.
SubbaRao V MadhunapantulaAuthors' Affiliations: Departments of Pharmacology.
Omer F KuzuAuthors' Affiliations: Departments of Pharmacology, Penn State Hershey Melanoma Center.
Arati SharmaAuthors' Affiliations: Departments of Pharmacology, Penn State Hershey Melanoma Center, Penn State Melanoma Therapeutics Program.
Gavin P RobertsonAuthors' Affiliations: Departments of Pharmacology, Pathology, Dermatology, and Surgery, Penn State Hershey Melanoma Center, Penn State Melanoma Therapeutics Program, The Foreman Foundation for Melanoma Research, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania gprobertson@psu.edu.
Penn State Milton S. Hershey Medical Center · USPennsylvania State University · US

Funding

Targeted Chemoprevention for MelanomaR01CA136667 · NCI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI ROBERTSON, GAVIN P. · 2010 to 2014
$2.1M
Akt3 Signaling as a Therapeutic TargetR01CA127892 · NCI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI ROBERTSON, GAVIN P. · 2008 to 2012
$1.5M
Synergistically Acting Targeted Therapeutics for MelanomaR01CA138634 · NCI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI ROBERTSON, GAVIN P. · 2010 to 2014
$1.5M
NCI NIH HHS R01 CA-1138634-02NCI NIH HHS R01 CA127892NCI NIH HHS R01 CA-127892-01ANCI NIH HHS R01 CA136667NCI NIH HHS R01 CA-136667-02NCI NIH HHS R01 CA138634
6 · The paper itself

Abstract

Melanoma is a highly drug-resistant cancer with resistance developing to agents targeting single proteins. To circumvent this problem, a new class of agent inhibiting multiple key pathways important in this disease is being developed to reduce the likelihood of developing resistant disease. The phosphoinositide 3-kinase (PI3K), mitogen-activated protein kinase (MAPK), and STAT3 pathways are constitutively activated in 50% to 70% of melanomas, promoting disease development. To identify a drug simultaneously targeting the PI3K, MAPK, and STAT3 cascades, a natural product library was screened to identify leelamine as a potential inhibitor. Leelamine was 4.5-fold more effective at inhibiting cultured melanoma cell survival than normal cells, with average IC(50) values of 2 and 9.3 μmol/L, respectively. It inhibited cellular proliferation at a concentration of 2.5 μmol/L by 40% to 80% and longer exposure increased apoptosis 600%. Leelamine inhibited the growth of preexisting xenografted melanoma tumors by an average of 60% by targeting the PI3K, MAPK, and STAT3 pathways without affecting animal body weight or blood markers of major organ function. The mechanism of action of leelamine is mediated by disruption of cholesterol transport, causing decreased cellular proliferation and consequently leading to increased tumor cell apoptosis as well as decreased tumor vascularization. Thus, a unique agent and novel mechanism of action has been identified for the treatment of melanoma that acts by inhibiting the activity of three major signaling pathways regulating the development of this disease.

Indexed as

AnimalsApoptosisCell ProliferationDiterpenesFemaleHumansMelanocytesMelanomaMiceMice, NudeMolecular Targeted TherapySignal TransductionSkin NeoplasmsDiterpenes

Identifiers

PMID24688050
PMCPMC4377161
OpenAlexW2132014241

What OpenQuestion holds

Textmetadata
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.