Westerhof, Lotus M. and Noonan, Jonathan and Hargrave, Kerrie E. and Chimbayo, Elizabeth T. and Cheng, Zhiling and Purnell, Thomas and Jackson, Mark R. and Borcherding, Nicholas and MacLeod, Megan K.L. (2023) Multifunctional cytokine production marks influenza A virus specific CD4 T cells with high expression of survival molecules. European Journal of Immunology, 53 (11): 2350559. ISSN 0014-2980
AI Summary:
The study investigated the persistence of cytokine-producing T cells during memory cell maintenance and secondary responses. The results showed that multifunctional memory T cells formed a substantial fraction of the secondary memory pool.AI Topics:
Cytokine production by memory T cells is a key mechanism of T cell mediated protection. However, we have limited understanding of the persistence of cytokine producing T cells during memory cell maintenance and secondary responses. We interrogated antigen-specific CD4 T cells using a mouse influenza A virus infection model. While CD4 T cells detected using MHCII tetramers declined in lymphoid and non-lymphoid organs, we found similar numbers of cytokine+ CD4 T cells at days 9 and 30 in the lymphoid organs. CD4 T cells with the capacity to produce cytokines expressed higher levels of pro-survival molecules, CD127 and Bcl2, than non-cytokine+ cells. Transcriptomic analysis revealed a heterogenous population of memory CD4 T cells with three clusters of cytokine+ cells. These clusters match flow cytometry data and reveal an enhanced survival signature in cells capable of producing multiple cytokines. Following re-infection, multifunctional T cells expressed low levels of the proliferation marker, Ki67, while cells that only produce the anti-viral cytokine, interferon-γ, were more likely to be Ki67+. Despite this, multifunctional memory T cells formed a substantial fraction of the secondary memory pool. Together these data indicate that survival rather than proliferation may dictate which populations persist within the memory pool.
Title | Multifunctional cytokine production marks influenza A virus specific CD4 T cells with high expression of survival molecules |
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Creators | Westerhof, Lotus M. and Noonan, Jonathan and Hargrave, Kerrie E. and Chimbayo, Elizabeth T. and Cheng, Zhiling and Purnell, Thomas and Jackson, Mark R. and Borcherding, Nicholas and MacLeod, Megan K.L. |
Identification Number | 10.1002/eji.202350559 |
Date | November 2023 |
Divisions | College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine College of Medical Veterinary and Life Sciences > School of Cancer Sciences |
Publisher | Wiley |
URI | https://pub.demo35.eprints-hosting.org/id/eprint/476 |
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Item Type | Article |
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Depositing User | Unnamed user with email ejo1f20@soton.ac.uk |
Date Deposited | 11 Jun 2025 16:38 |
Revision | 38 |
Last Modified | 12 Jun 2025 09:40 |
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