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Zinc intoxication induces ferroptosis in A549 human lung cells

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Abstract

Zinc (Zn) is an essential trace metal required for all forms of life, but is toxic at high concentrations. While the toxic effects of high levels of Zn are well documented, the mechanism of cell death appears to vary based on the study and concentration of Zn. Zn has been proposed as an anti-cancer treatment against non-small cell lung cancer (NSCLC). The goal of this analysis was to determine the effects of Zn on metabolism and cell death in A549 cells. Here, high throughput multi-omics analysis identified the molecular effects of Zn intoxication on the proteome, metabolome, and transcriptome of A549 human NSCLC cells after 5 min to 24 h of Zn exposure. Multi-omics analysis combined with additional experimental evidence suggests Zn intoxication induces ferroptosis, an iron and lipid peroxidation-dependent programmed cell death, demonstrating the utility of multi-omics analysis to identify cellular response to intoxicants.

Graphical abstract: Zinc intoxication induces ferroptosis in A549 human lung cells

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Publication details

The article was received on 12 Dec 2018, accepted on 01 Apr 2019 and first published on 10 Apr 2019


Article type: Paper
DOI: 10.1039/C8MT00360B
Citation: Metallomics, 2019, Advance Article

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    Zinc intoxication induces ferroptosis in A549 human lung cells

    L. D. Palmer, A. T. Jordan, K. N. Maloney, M. A. Farrow, D. B. Gutierrez, R. Gant-Branum, W. J. Burns, C. E. Romer, T. Tsui, J. L. Allen, W. N. Beavers, Y. Nei, S. D. Sherrod, D. B. Lacy, J. L. Norris, J. A. McLean, R. M. Caprioli and E. P. Skaar, Metallomics, 2019, Advance Article , DOI: 10.1039/C8MT00360B

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