Cited by 102Iron Metabolism and DisordersFerroptosis and cancer prognosisCancer Cells and Metastasis

Tumor-initiating cells of breast and prostate origin show alterations in the expression of genes related to iron metabolism

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Rychtarcikova, Zuzana, Lettlova, Sandra, Tomkova, Veronika, Korenkova, Vlasta, Langerova, Lucie, Simonova, Ekaterina, Zjablovskaja, Polina, Alberich-Jorda, Meritxell +2 more·2017·Oncotarget

Abstract

// Zuzana Rychtarcikova 1, 2, * , Sandra Lettlova 1, 3, * , Veronika Tomkova 1, 3 , Vlasta Korenkova 1 , Lucie Langerova 1 , Ekaterina Simonova 1 , Polina Zjablovskaja 4 , Meritxell Alberich-Jorda 4 , Jiri Neuzil 1, 5 , Jaroslav Truksa 1 1 Institute of Biotechnology, Czech Academy of Sciences, Prague, Czech Republic 2 Charles University in Prague, Faculty of Pharmacy in Hradec Kralove, Hradec Kralove, Czech Republic 3 Charles University in Prague, Faculty of Sciences, Prague, Czech Republic 4 Institute of Molecular Genetics, Czech Academy of Sciences, Prague, Czech Republic 5 School of Medical Science, Menzies Health Institute Queensland, Southport, Queensland, Australia * These authors contributed equally to this work Correspondence to: Jaroslav Truksa, email: jaroslav.truksa@ibt.cas.cz Keywords: tumor-initiating cells, breast cancer, iron metabolism, FeS cluster, stem cells Received: January 12, 2016 Accepted: November 30, 2016 Published: December 22, 2016 ABSTRACT The importance of iron in the growth and progression of tumors has been widely documented. In this report, we show that tumor-initiating cells (TICs), represented by spheres derived from the MCF7 cell line, exhibit higher intracellular labile iron pool, mitochondrial iron accumulation and are more susceptible to iron chelation. TICs also show activation of the IRP/IRE system, leading to higher iron uptake and decrease in iron storage, suggesting that level of properly assembled cytosolic iron-sulfur clusters (FeS) is reduced. This finding is confirmed by lower enzymatic activity of aconitase and FeS cluster biogenesis enzymes, as well as lower levels of reduced glutathione, implying reduced FeS clusters synthesis/utilization in TICs. Importantly, we have identified specific gene signature related to iron metabolism consisting of genes regulating iron uptake, mitochondrial FeS cluster biogenesis and hypoxic response ( ABCB10 , ACO1 , CYBRD1 , EPAS1 , GLRX5 , HEPH , HFE , IREB2 , QSOX1 and TFRC ). Principal component analysis based on this signature is able to distinguish TICs from cancer cells in vitro and also Leukemia-initiating cells (LICs) from non-LICs in the mouse model of acute promyelocytic leukemia (APL). Majority of the described changes were also recapitulated in an alternative model represented by MCF7 cells resistant to tamoxifen (TAMR) that exhibit features of TICs. Our findings point to the critical importance of redox balance and iron metabolism-related genes and proteins in the context of cancer and TICs that could be potentially used for cancer diagnostics or therapy.

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  • Several cancers, including breast, prostate and lymphoma, reprogram iron metabolism by increasing iron uptake or reducing iron export and storage.

    “reprogramming of iron metabolism can occur via a variety of mechanisms, including the upregulation of several iron-intake pathways or downregulation of iron export and storage pathways in various types of cancer such as breast, prostate and lymphoma37,38.”

    From Targeting cancer vulnerabilities with high-dose vitamin C (2019) · cites this paper as [37]

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  1. [126]Kuhn LC Iron regulatory proteins and their role in controlling iron metabolism Metallomics 2015 7 232 243 25306858
  2. [131]Liuzzi JP Aydemir F Nam H Knutson MD Cousins RJ Zip14 (Slc39a14) mediates non-transferrin-bound iron uptake into cells Proc Natl Acad Sci USA 2006 103 13612 13617 16950869 PMC1564235

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Authors
Rychtarcikova, Z., Lettlova, S., Tomkova, V., Korenkova, V., Langerova, L., Simonova, E., Zjablovskaja, P., Alberich-Jorda, M., Neuzil, J., & Truksa, J.
Affiliations
  • Institute of Biotechnology, Czech Academy of Sciences, Prague, Czech Republic
  • Czech Academy of Sciences (CZ)
  • Institute of Molecular Genetics, Czech Academy of Sciences, Prague, Czech Republic
Venue
Oncotarget
Published
2016-12-22
Volume
8
Issue
4
Pages
6376-6398
ISSN
1949-2553 (ISSN-L)
OpenAlex
W2561157023
Cited by
100
References
142
Citations by year
2026: 5 · 2025: 12 · 2024: 10 · 2023: 13 · 2022: 14 · 2021: 13 · 2020: 10 · 2019: 15 · 2018: 6 · 2017: 2
FWCI
7.29
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncotarget (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Griffith Research Online (submittedVersion, cc-by)
Funders
  • Grantová Agentura České Republiky (GA13-28830S, GA15-03796S)
  • Kellner Family Foundation
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Ferroptosis and cancer prognosis
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
cancer stem cells, breast cancer, prostate cancer, iron metabolism, iron-sulfur clusters, labile iron pool, mitochondrial iron accumulation, iron chelation, aconitase, glutathione, hypoxia response, ABCB10, EPAS1, gene expression signatures, iron absorption, iron storage
MeSH terms
Animals, Antineoplastic Agents, Biological Transport, Breast Neoplasms, Dose-Response Relationship, Drug, Female, Humans, Iron, Iron Chelating Agents, Male, Mice, Transgenic, Mitochondria, Phenotype, Prostatic Neoplasms, Tamoxifen, Neoplastic Stem Cells, Leukemia, Promyelocytic, Acute, Gene Expression Regulation, Enzymologic, Gene Expression Regulation, Neoplastic, Spheroids, Cellular, Drug Resistance, Neoplasm, Gene Expression Profiling, Principal Component Analysis, Transcriptome, MCF-7 Cells

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