Evidence map›Paper›PMID 25807077›Full record

ArticlePloS one2015

Tumor cells switch to mitochondrial oxidative phosphorylation under radiation via mTOR-mediated hexokinase II inhibition--a Warburg-reversing effect.

Chung-Ling Lu, Lili Qin, Hsin-Chen Liu, Demet Candas, Ming Fan, Jian Jian Li

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
5.7field-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

81 citing papers in PubMed, 125 citations in OpenAlex.

  1. Lactate-Mediated Lysine Lactylation in Renal Fibrosis: Current Progress and Challenges.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Review
  2. Article
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  6. The Warburg Effect and Aerobic Glycolysis in Tumors.Cancer treatment and research · 2026
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21 more citing papers are in PubMed but not listed here.

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.

Chung-Ling LuDepartment of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California, United States of America.
Lili QinDepartment of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California, United States of America.
Hsin-Chen LiuDepartment of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California, United States of America.
Demet CandasDepartment of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California, United States of America.
Ming FanDepartment of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California, United States of America.
Jian Jian LiDepartment of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California, United States of America.
University of California, Davis · US

Funding

Staff InvestigatorsP30CA093373 · NCI · UNIVERSITY OF CALIFORNIA DAVIS · PI Laura Marcu · 2002 to 2026
$84.9M
Target MKP-1 for Therapy-Resistant Breast Cancer Stem CellsR01CA152313 · NCI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI LI, JIAN JIAN · 2011 to 2015
$1.9M
NF-kB-mediated HER-2 overexpression in radioresistant breast cancer stem cells?R01CA133402 · NCI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI LI, JIAN JIAN · 2009 to 2013
$1.5M
NCI NIH HHS P30 CA093373NCI NIH HHS R01 CA133402NCI NIH HHS R01 CA152313
6 · The paper itself

Abstract

A unique feature of cancer cells is to convert glucose into lactate to produce cellular energy, even under the presence of oxygen. Called aerobic glycolysis [The Warburg Effect] it has been extensively studied and the concept of aerobic glycolysis in tumor cells is generally accepted. However, it is not clear if aerobic glycolysis in tumor cells is fixed, or can be reversed, especially under therapeutic stress conditions. Here, we report that mTOR, a critical regulator in cell proliferation, can be relocated to mitochondria, and as a result, enhances oxidative phosphorylation and reduces glycolysis. Three tumor cell lines (breast cancer MCF-7, colon cancer HCT116 and glioblastoma U87) showed a quick relocation of mTOR to mitochondria after irradiation with a single dose 5 Gy, which was companied with decreased lactate production, increased mitochondrial ATP generation and oxygen consumption. Inhibition of mTOR by rapamycin blocked radiation-induced mTOR mitochondrial relocation and the shift of glycolysis to mitochondrial respiration, and reduced the clonogenic survival. In irradiated cells, mTOR formed a complex with Hexokinase II [HK II], a key mitochondrial protein in regulation of glycolysis, causing reduced HK II enzymatic activity. These results support a novel mechanism by which tumor cells can quickly adapt to genotoxic conditions via mTOR-mediated reprogramming of bioenergetics from predominantly aerobic glycolysis to mitochondrial oxidative phosphorylation. Such a "waking-up" pathway for mitochondrial bioenergetics demonstrates a flexible feature in the energy metabolism of cancer cells, and may be required for additional cellular energy consumption for damage repair and survival. Thus, the reversible cellular energy metabolisms should be considered in blocking tumor metabolism and may be targeted to sensitize them in anti-cancer therapy.

Indexed as

Adenosine TriphosphateBreast NeoplasmsCell Line, TumorCell ProliferationEnergy MetabolismFemaleGlucoseGlycolysisHCT116 CellsHexokinaseHumansMCF-7 CellsMitochondriaOxidative PhosphorylationOxygen ConsumptionRadiationAdenosine TriphosphateGlucoseHexokinaseMTOR protein, humanTOR Serine-Threonine Kinases

Identifiers

PMID25807077
PMCPMC4373728
OpenAlexW2030131795

What OpenQuestion holds

Textmetadata
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.