Evidence map›Paper›PMID 34479029›Full record

ArticleTranslational oncology2021

Combined metformin-salicylate treatment provides improved anti-tumor activity and enhanced radiotherapy response in prostate cancer; drug synergy at clinically relevant doses.

Evangelia E Tsakiridis, Lindsay Broadfield, Katarina Marcinko, Olga-Demetra Biziotis, Amr Ali, Bassem Mekhaeil, Elham Ahmadi, Kanwaldeep Singh, Aruz Mesci, Panayiotis G Zacharidis and 5 more

Open access · goldAbstract read
In one paragraph

Article in Translational oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Targeting mitochondria and programmed cell death as potential interventions for metastatic castration-resistant prostate cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Review
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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

15 authors at 2 institutions in 1 country.

Evangelia E TsakiridisCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
Lindsay BroadfieldCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
Katarina MarcinkoCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
Olga-Demetra BiziotisCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Oncology, McMaster University, Hamilton, Ontario, Canada.
Amr AliCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Oncology, McMaster University, Hamilton, Ontario, Canada.
Bassem MekhaeilCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Oncology, McMaster University, Hamilton, Ontario, Canada.
Elham AhmadiCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Oncology, McMaster University, Hamilton, Ontario, Canada.
Kanwaldeep SinghDepartment of Oncology, McMaster University, Hamilton, Ontario, Canada.
Aruz MesciDepartment of Radiation Oncology, Juravinski Cancer Center, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada.
Panayiotis G ZacharidisCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Oncology, McMaster University, Hamilton, Ontario, Canada.
Alexander E AnagnostopoulosCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Oncology, McMaster University, Hamilton, Ontario, Canada.
Tobias BergDepartment of Oncology, McMaster University, Hamilton, Ontario, Canada.
Paola MutiDepartment of Oncology, McMaster University, Hamilton, Ontario, Canada.
Gregory R SteinbergCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada.
Theodoros TsakiridisCentre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada; Department of Oncology, McMaster University, Hamilton, Ontario, Canada; Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada; Department of Radiation Oncology, Juravinski Cancer Center, 699 Concession Street, Hamilton, Ontario L8V 5C2, Canada. Electronic address: theos.tsakiridis@hhsc.ca.
McMaster University · CAJuravinski Cancer Centre · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is need for well-tolerated therapies for prostate cancer (PrCa) secondary prevention and to improve response to radiotherapy (RT). The anti-diabetic agent metformin (MET) and the aspirin metabolite salicylate (SAL) are shown to activate AMP-activated protein kinase (AMPK), suppress de novo lipogenesis (DNL), the mammalian target of rapamycin (mTOR) pathway and reduce PrCa proliferation in-vitro. The purpose of this study was to examine whether combined MET+SAL treatment could provide enhanced PrCa tumor suppression and improve response to RT.

methodsAndrogen-sensitive (22RV1) and resistant (PC3, DU-145) PrCa cells and PC3 xenografts were used to examine whether combined treatment with MET+SAL can provide improved anti-tumor activity compared to each agent alone in non-irradiated and irradiated PrCa cells and tumors. Mechanisms of action were investigated with analysis of signaling events, mitochondria respiration and DNL activity assays.

resultsWe observed that PrCa cells are resistant to clinically relevant doses of MET. Combined MET + SAL treatment provides synergistic anti-proliferative activity at clinically relevant doses and enhances the anti-proliferative effects of RT. This was associated with suppression of oxygen consumption rate (OCR), activation of AMPK, suppression of acetyl-CoA carboxylase (ACC)-DNL and mTOR-p70

conclusionMET+SAL treatment suppresses PrCa cell proliferation and tumor growth and enhances responses to RT at clinically relevant doses. Since MET and SAL are safe, widely-used and inexpensive agents, these data support the investigation of MET+SAL in PrCa clinical trials alone and in combination with RT.

Indexed as

AMPKHIF1aHistone-H3LipogenesismTORXenografts

Identifiers

PMID34479029
PMCPMC8411238
OpenAlexW3198846052

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.