Evidence map›Paper›PMID 27313770›Full record

ArticleOncology letters2016

Potassium increases the antitumor effects of ascorbic acid in breast cancer cell lines

Giovanni Vanni Frajese, Monica Benvenuto, Massimo Fantini, Elena Ambrosin, Pamela Sacchetti, Laura Masuelli, Maria Gabriella Giganti, Andrea Modesti, Roberto Bei

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in Oncology letters, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.0field-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

12 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Micronutrient Status and Breast Cancer: A Narrative Review.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Article
  7. Article
  8. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Giovanni Vanni FrajeseDepartment of Sports Science, Human and Health, University of Rome 'Foro Italico', Rome I-00135, Italy.
Monica BenvenutoDepartment of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata', Rome I-00133, Italy.
Massimo FantiniDepartment of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata', Rome I-00133, Italy.
Elena AmbrosinDepartment of Sports Science, Human and Health, University of Rome 'Foro Italico', Rome I-00135, Italy.
Pamela SacchettiDepartment of Experimental Medicine, University of Rome 'Sapienza', Rome I-00185, Italy.
Laura MasuelliDepartment of Experimental Medicine, University of Rome 'Sapienza', Rome I-00185, Italy.
Maria Gabriella GigantiDepartment of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata', Rome I-00133, Italy.
Andrea ModestiDepartment of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata', Rome I-00133, Italy.
Roberto BeiDepartment of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata', Rome I-00133, Italy.
University of Rome Tor Vergata · ITForo Italico University of Rome · ITSapienza University of Rome · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ascorbic acid (A) has been demonstrated to exhibit anti-cancer activity in association with chemotherapeutic agents. Potassium (K) is a regulator of cellular proliferation. In the present study, the biological effects of A and K bicarbonate, alone or in combination (A+K), on breast cancer cell lines were evaluated. The survival of cancer cells was determined by sulforhodamine B cell proliferation assay, while analysis of the cell cycle distribution was conducted via fluorescence-activated cell sorting. In addition, the expression of signaling proteins was analyzed upon treatment. The results indicated that there was a heterogeneous response of the different cell lines to A and K, and the best effects were achieved by A+K and A treatment. The interaction between A+K indicated an additive or synergistic effect. In addition, A+K increased the percentage of cells in the sub-G1 phase of the cell cycle, and was the most effective treatment in activating the degradation of poly(adenosine diphosphate-ribose) polymerase-1. In the breast cancer cell line MCF-7, A+K induced the appearance of the 18 kDa isoform of B-cell lymphoma-2-associated X protein (Bax), which is a more potent inducer of apoptosis than the full-length Bax-p21. The effects of A and K on the phosphorylation of extracellular signal-regulated kinase (ERK)1 and ERK2 were heterogeneous. In addition, treatment with K, A and A+K inhibited the expression of nuclear factor-κB. Overall, the results of the present study indicated that K potentiated the anti-tumoral effects of A in breast cancer cells

Indexed as

apoptosisascorbic acidbreast cancerpotassium

Identifiers

PMID27313770
PMCPMC4888082
OpenAlexW2344327404

What OpenQuestion holds

Textmetadata
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.