Selenium-GPX4 axis protects follicular helper T cells from ferroptosis
- PMID: 34413521
- DOI: 10.1038/s41590-021-00996-0
Selenium-GPX4 axis protects follicular helper T cells from ferroptosis
Erratum in
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Author Correction: Selenium-GPX4 axis protects follicular helper T cells from ferroptosis.Nat Immunol. 2021 Dec;22(12):1599. doi: 10.1038/s41590-021-01063-4. Nat Immunol. 2021. PMID: 34608307 No abstract available.
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Author Correction: Selenium-GPX4 axis protects follicular helper T cells from ferroptosis.Nat Immunol. 2024 Sep;25(9):1764. doi: 10.1038/s41590-024-01949-z. Nat Immunol. 2024. PMID: 39117868 No abstract available.
Abstract
Follicular helper T (TFH) cells are a specialized subset of CD4+ T cells that essentially support germinal center responses where high-affinity and long-lived humoral immunity is generated. The regulation of TFH cell survival remains unclear. Here we report that TFH cells show intensified lipid peroxidation and altered mitochondrial morphology, resembling the features of ferroptosis, a form of programmed cell death that is driven by iron-dependent accumulation of lipid peroxidation. Glutathione peroxidase 4 (GPX4) is the major lipid peroxidation scavenger and is necessary for TFH cell survival. The deletion of GPX4 in T cells selectively abrogated TFH cells and germinal center responses in immunized mice. Selenium supplementation enhanced GPX4 expression in T cells, increased TFH cell numbers and promoted antibody responses in immunized mice and young adults after influenza vaccination. Our findings reveal the central role of the selenium-GPX4-ferroptosis axis in regulating TFH homeostasis, which can be targeted to enhance TFH cell function in infection and following vaccination.
© 2021. The Author(s), under exclusive licence to Springer Nature America, Inc.
Comment in
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Selenium saves ferroptotic TFH cells to fortify the germinal center.Nat Immunol. 2021 Sep;22(9):1074-1076. doi: 10.1038/s41590-021-01007-y. Nat Immunol. 2021. PMID: 34413522 No abstract available.
References
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- Vinuesa, C. G., Linterman, M. A., Yu, D. & MacLennan, I. C. Follicular helper T cells. Ann. Rev. Immunol. https://doi.org/10.1146/annurev-immunol-041015-055605 (2016).
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