IMR Press / FBL / Volume 22 / Issue 4 / DOI: 10.2741/4507

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Review

Zinc transporters and dysregulated channels in cancers

Show Less
1 Department of Surgery, Division of Thoracic Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
2 Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
3 Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
4 University of Picardie Jules Verne, UFR Sciences, EA 4667, Laboratory of Cell and Molecular Physiology, SFR CAP-SANTE (FED 4231), Amiens, France
5 Department of Pharmacology, College of Medicine, Penn State University, 500 University Drive Hershey, PA 17033, USA
6 Rowett Institute of Nutrition and Health, University of Aberdeen, Foresterhill, Bucksburn, Aberdeen AB25 2ZD, Scotland, UK
Academic Editors:Hui-Ling Chiang, Shannon Kelleher
Front. Biosci. (Landmark Ed) 2017, 22(4), 623–643; https://doi.org/10.2741/4507
Published: 1 January 2017
(This article belongs to the Special Issue Membrane transport)
Abstract

As a nutritionally essential metal ion, zinc (Zn) not only constitutes a structural element for more than 3000 proteins but also plays important regulatory functions in cellular signal transduction. Zn homeostasis is tightly controlled by regulating the flux of Zn across cell membranes through specific transporters, i.e.ZnT and ZIP family proteins. Zn deficiency and malfunction of Zn transporters have been associated with many chronic diseases including cancer. However, the mechanisms underlying Zn regulatory functions in cellular signaling and their impact on the pathogenesis and progression of cancers remain largely unknown. In addition to these acknowledged multifunctions, Zn modulates a wide range of ion channels that in turn may also play an important role in cancer biology. The goal of this review is to propose how zinc deficiency, through modified Zn homeostasis, transporter activity and the putative regulatory function of Zn can influence ion channel activity, and thereby contribute to carcinogenesis and tumorigenesis. This review intends to stimulate interest in, and support for research into the understanding of Zn-modulated channels in cancers, and to search for novel biomarkers facilitating effective clinical stratification of high risk cancer patients as well as improved prevention and therapy in this emerging field.

Keywords
Zn Homeostasis
ZnT
ZIP
TRP Channels
Store-operated Ca2+ Entry
Orai Channels
STIM
Prostate Cancer
Breast Cancer
Esophageal Cancer
Review
Share
Back to top