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Effects of the Tumor Environment on Ion Channels: Implication for Breast Cancer Progression

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Transportome Malfunction in the Cancer Spectrum

Abstract

In recent years, it has been shown that breast cancer consists not only of neoplastic cells, but also of significant alterations in the surrounding stroma or tumor microenvironment. These alterations are now recognized as a critical element for breast cancer development and progression, as well as potential therapeutic targets. Furthermore, there is no doubt that ion channels are deregulated in breast cancer and some of which are prognostic markers of clinical outcome. Their dysregulation is also associated with aberrant signaling pathways. The number of published data on ion channels modifications by the microenvironment has significantly increased last years. Here, we summarize the state of the art on the cross talk between the tumor microenvironment and ion channels, in particular collagen 1, EGF, TGF-β, ATP, hypoxia, and pH, on the development and progression of breast cancer.

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Abbreviations

BC:

Breast cancer

DDR:

Discoidin domain receptor

ECM:

Extracellular matrix

EGF:

Epidermal growth factor

EGFR:

Epidermal growth factor receptor

EMT:

Epithelial-to-mesenchymal transition

ER:

Endoplasmic reticulum

GSTO1:

Glutathione S-transferase omega 1

HIF:

Hypoxia inducible factor

MCU:

Mitochondrial calcium uniporter

MMP:

Metalloproteinase

ROS:

Reactive oxygen species

SICE:

Store-independent calcium entry

TGF-β:

Transforming growth factor β

TME:

Tumor microenvironment

TNBC:

Triple-negative breast cancer

VEGF:

Vascular endothelial growth factor

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Acknowledgments

This work was supported by the UPJV “Université de Picardie Jules Verne,” the “Région Hauts-de-France,” the CNO (“Cancéropôle Nord-Ouest”), and the Marie Skłodowska-Curie Innovative Training Network (ITN), Grant Agreement number: 813834 – pHioniC – H2020-MSCA-ITN-2018.

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The authors declare that they have no conflict of interest.

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Correspondence to Halima Ouadid-Ahidouch .

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Ouadid-Ahidouch, H., Morjani, H., Schnipper, J., Girault, A., Ahidouch, A. (2020). Effects of the Tumor Environment on Ion Channels: Implication for Breast Cancer Progression. In: Stock, C., Pardo, L.A. (eds) Transportome Malfunction in the Cancer Spectrum. Reviews of Physiology, Biochemistry and Pharmacology, vol 181. Springer, Cham. https://doi.org/10.1007/112_2020_19

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