Evidence map›Paper›PMID 26341291›Full record

ArticleToxicology and applied pharmacology2015

Natural products induce a G protein-mediated calcium pathway activating p53 in cancer cells.

Paul R van Ginkel, Michael B Yan, Saswati Bhattacharya, Arthur S Polans, Jason D Kenealey

Abstract read
In one paragraph

Article in Toxicology and applied pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.1field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 36 citations in OpenAlex.

  1. Stilbenes from Vine Extracts: Therapeutic Potential and Mechanisms.International journal of molecular sciences · 2025
    Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. PGRMC1 Inhibits Progesterone-Evoked Proliferation and CaInternational journal of molecular sciences · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Anti-Cancer Agents in Proliferation and Cell Death: The Calcium Connection.International journal of molecular sciences · 2019
    Review
  11. Review
  12. Article
  13. The Role of Resveratrol in Cancer Therapy.International journal of molecular sciences · 2017
    Review
  14. Article
  15. Review
  16. Review
  17. Role of Natural Stilbenes in the Prevention of Cancer.Oxidative medicine and cellular longevity · 2016
    Review
  18. 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 2 institutions in 1 country.

Paul R van GinkelUW Carbone Cancer Center, University of Wisconsin, Madison, WI 53792, United States; Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, WI 53792, United States.
Michael B YanUW Carbone Cancer Center, University of Wisconsin, Madison, WI 53792, United States; Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, WI 53792, United States.
Saswati BhattacharyaUW Carbone Cancer Center, University of Wisconsin, Madison, WI 53792, United States; Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, WI 53792, United States; Department of Pediatrics, University of Wisconsin, Madison, WI 53792, United States.
Arthur S PolansUW Carbone Cancer Center, University of Wisconsin, Madison, WI 53792, United States; Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, WI 53792, United States. Electronic address: aspolans@wisc.edu.
Jason D KenealeyUW Carbone Cancer Center, University of Wisconsin, Madison, WI 53792, United States; Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, WI 53792, United States; Department of Nutrition, Dietetics and Food Science, Brigham Young University, Provo, UT 84602, United States.
University of Wisconsin Carbone Cancer Center · USUniversity of Wisconsin–Madison · US

Funding

UW Vision Research Core - Administrative CoreP30EY016665 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI ROBERT W NICKELLS · 2005 to 2026
$12.6M
Angiogenic Factors Associated with Uveal MelanomaR01CA103653 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI POLANS, ARTHUR S · 2004 to 2007
$1.6M
NCI NIH HHS R01 CA103653NEI NIH HHS P30 EY016665
6 · The paper itself

Abstract

Paclitaxel, etoposide, vincristine and doxorubicin are examples of natural products being used as chemotherapeutics but with adverse side effects that limit their therapeutic window. Natural products derived from plants and having low toxicity, such as quercetin, resveratrol, epigallocatechin gallate and piceatannol, have been shown to inhibit tumor cell growth both in vitro and in pre-clinical models of cancer, but their mechanisms of action have not been fully elucidated, thus restricting their use as prototypes for developing synthetic analogs with improved anti-cancer properties. We and others have demonstrated that one of the earliest and consistent events upon exposure of tumor cells to these less toxic natural products is a rise in cytoplasmic calcium, activating several pro-apoptotic pathways. We describe here a G protein/inositol 1,4,5-trisphosphate pathway (InsP3) in MDA-MB-231 human breast cancer cells that mediates between these less toxic natural products and the release of calcium from the endoplasmic reticulum. Further, we demonstrate that this elevation of intracellular calcium modulates p53 activity and the subsequent transcription of several pro-apoptotic genes encoding PIG8, CD95, PIDD, TP53INP, RRM2B, Noxa, p21 and PUMA. We conclude from our findings that less toxic natural products likely bind to a G protein coupled receptor that activates a G protein-mediated and calcium-dependent pathway resulting selectively in tumor cell death.

Indexed as

Calcium SignalingGene Expression Regulation, NeoplasticApoptosisApoptosis Regulatory ProteinsBiological ProductsBreast NeoplasmsCell Line, TumorCell ProliferationEndoplasmic ReticulumFemaleGTP-Binding ProteinsHumansRNA, MessengerTumor Suppressor Protein p53Apoptosis Regulatory ProteinsBiological ProductsGTP-Binding ProteinsRNA, MessengerTumor Suppressor Protein p53Breast tumor cell apoptosisCalciumG-protein coupled receptor

Identifiers

PMID26341291
PMCPMC4620942
OpenAlexW1215527484

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.