Evidence map›Paper›PMID 34520051›Full record

ArticleCell proliferation2021

δ-Tocotrienol sensitizes and re-sensitizes ovarian cancer cells to cisplatin via induction of G1 phase cell cycle arrest and ROS/MAPK-mediated apoptosis.

Fabrizio Fontana, Monica Marzagalli, Michela Raimondi, Valentina Zuco, Nadia Zaffaroni, Patrizia Limonta

Open access · goldAbstract read
In one paragraph

Article in Cell proliferation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 3% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

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  14. A rare germline BMP15 missense mutation causes hereditary ovarian immature teratoma in human.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  20. Clinical and Molecular Attributes and Evaluation of Pancreatic Cystic Neoplasm.Biochimica et biophysica acta. Reviews on cancer · 2023
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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 2 institutions in 1 country.

Fabrizio FontanaDepartment of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.ORCID https://orcid.org/0000-0002-9148-0884
Monica MarzagalliDepartment of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
Michela RaimondiDepartment of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
Valentina ZucoDepartment of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
Nadia ZaffaroniDepartment of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
Patrizia LimontaDepartment of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.ORCID https://orcid.org/0000-0001-7028-3008
University of Milan · ITFondazione IRCCS Istituto Nazionale dei Tumori · IT

Funding

Associazione Italiana per la Ricerca sul Cancro Fellowship for italy (Fabrizio Fontana)Ministero dell'Istruzione, dell'Università e della Ricerca Progetto di Eccellenza (Department of Pharmacological and Biomolecular Sciences)
6 · The paper itself

Abstract

objectivesAmong gynaecologic malignancies, ovarian cancer (OC) represents the leading cause of death for women worldwide. Current OC treatment involves cytoreductive surgery followed by platinum-based chemotherapy, which is associated with severe side effects and development of drug resistance. Therefore, new therapeutic strategies are urgently needed. Herein, we evaluated the anti-tumour effects of Vitamin E-derived δ-tocotrienol (δ-TT) in two human OC cell lines, IGROV-1 and SKOV-3 cells. MATERIALS AND

methodsMTT and Trypan blue exclusion assays were used to assess δ-TT cytotoxicity, alone or in combination with other molecules. δ-TT effects on cell cycle, apoptosis, ROS generation and MAPK phosphorylation were investigated by flow cytometry, Western blot and immunofluorescence analyses. The synergism between δ-TT and chemotherapy was evaluated by isobologram analysis.

resultsWe demonstrated that δ-TT could induce cell cycle block at G1-S phase and mitochondrial apoptosis in OC cell lines. In particular, we found that the proapoptotic activity of δ-TT correlated with mitochondrial ROS production and subsequent JNK and p38 activation. Finally, we observed that the compound was able to synergize with cisplatin, not only enhancing its cytotoxicity in IGROV-1 and SKOV-3 cells but also re-sensitizing IGROV-1/Pt1 cell line to its anti-tumour effects.

conclusionsδ-TT triggers G1 phase cell cycle arrest and ROS/MAPK-mediated apoptosis in OC cells and sensitizes them to platinum treatment, thus representing an interesting option for novel chemopreventive/therapeutic strategies for OC.

Indexed as

Antineoplastic AgentsApoptosisCell Line, TumorCell ProliferationCisplatinFemaleG1 Phase Cell Cycle CheckpointsHumansOvarian NeoplasmsReactive Oxygen SpeciesSignal TransductionVitamin EAntineoplastic AgentsCisplatinReactive Oxygen Speciestocotrienol, deltaVitamin EapoptosiscisplatinMAPKovarian cancerROStocotrienols

Identifiers

PMID34520051
PMCPMC8560608
OpenAlexW3199384426

What OpenQuestion holds

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LicenceCC BY
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.