Evidence map›Paper›PMID 21971120›Full record

ArticleMolecular cancer therapeutics2011

Vitamin E δ-tocotrienol augments the antitumor activity of gemcitabine and suppresses constitutive NF-κB activation in pancreatic cancer.

Kazim Husain, Rony A Francois, Teruo Yamauchi, Marta Perez, Said M Sebti, Mokenge P Malafa

Registry-linked trialAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04496492 (Preoperative Use of Tocotrienol Associated With Personalized Nutritional and Psychoeducational Support in Women With Primary Breast Cancer.), which is not on this map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
4.3field-weighted citation impact, top 5% 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.

NCT04496492 phase2completednot on this mapstarted 2016, after this paper: background citation

Preoperative Use of Tocotrienol Associated With Personalized Nutritional and Psychoeducational Support in Women With Primary Breast Cancer.

TypeinterventionalSponsorFondazione IRCCS Istituto Nazionale dei Tumori, MilanoRan2016 to 2017Enrolled50ConditionsBreast CancerArmsTocotrienol
3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 103 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Metabolomic Profile ofLife (Basel, Switzerland) · 2024
    Article
  6. Vitamin E in the management of pancreatic cancer: A scoping review.World journal of gastrointestinal oncology · 2023
    Article
  7. Review
  8. Review
  9. Lipophilic and Hydrophilic Compounds fromLife (Basel, Switzerland) · 2022
    Review
  10. Article
  11. Revisiting the therapeutic potential of tocotrienol.BioFactors (Oxford, England) · 2022
    Review
  12. Article
  13. Article
  14. Article
  15. Vitamin E beyond Its Antioxidant Label.Antioxidants (Basel, Switzerland) · 2021
    Review
  16. Article
  17. Article
  18. Review
  19. Review
  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

6 authors at 1 institution in 1 country.

Kazim HusainDepartment of Gastrointestinal Oncology, Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, FL 33612, USA.
Rony A Francois
Teruo Yamauchi
Marta Perez
Said M Sebti
Mokenge P Malafa
Moffitt Cancer Center · US

Funding

Intervention of Pancreatic Oncogenic Pathways with Dietary TocotrienolR01CA129227 · NCI · H. LEE MOFFITT CANCER CTR & RES INST · PI MALAFA, MOKENGE P. · 2008 to 2012
$3.2M
NCI NIH HHS 1R01 CA-129227-01A1NCI NIH HHS R01 CA129227
6 · The paper itself

Abstract

The NF-κB transcription factor functions as a crucial regulator of cell survival and chemoresistance in pancreatic cancer. Recent studies suggest that tocotrienols, which are the unsaturated forms of vitamin E, are a promising class of anticancer compounds that inhibit the growth and survival of many cancer cells, including pancreatic cancer. Here, we show that tocotrienols inhibited NF-κB activity and the survival of human pancreatic cancer cells in vitro and in vivo. Importantly, we found the bioactivity of the four natural tocotrienol compounds (α-, β-, δ-, and γ-tocotrienol) to be directly related to their ability to suppress NF-κB activity in vitro and in vivo. The most bioactive tocotrienol for pancreatic cancer, δ-tocotrienol, significantly enhanced the efficacy of gemcitabine to inhibit pancreatic cancer growth and survival in vitro and in vivo. Moreover, we found that δ-tocotrienol augmentation of gemcitabine activity in pancreatic cancer cells and tumors is associated with significant suppression of NF-κB activity and the expression of NF-κB transcriptional targets (Bcl-X(L), X-linked inhibitor of apoptosis, and survivin). Our study represents the first comprehensive preclinical evaluation of the activity of natural vitamin E compounds in pancreatic cancer. Given these results, we are conducting a phase I trial of δ-tocotrienol in patients with pancreatic cancer using pancreatic tumor cell survival and NF-κB signaling components as intermediate biomarkers. Our data also support future clinical investigation of δ-tocotrienol to augment gemcitabine activity in pancreatic cancer.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsAntioxidantsCarcinomaCell Line, TumorDeoxycytidineDown-RegulationDrug SynergismFemaleGemcitabineHumansMiceMice, SCIDModels, BiologicalNF-kappa BPancreatic NeoplasmsAntioxidantsDeoxycytidineGemcitabineNF-kappa Btocotrienol, deltaVitamin E

Identifiers

PMID21971120
PMCPMC3237822
OpenAlexW2122768765

What OpenQuestion holds

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Registered trials

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.