A simple, robust flow cytometry-based whole blood assay for investigating sex differential interferon alpha production by plasmacytoid dendritic cells

Sampson, Oliver, Lim, Nicholas, White, Jemima, Vieira, Vinicius, Kløverpris, Henrik, Adland, Emily, Conlon, Chris, Skelly, Donal, Jones, Lucy C. ORCID: https://orcid.org/0000-0002-3872-4376, Stafford, Lizzie, Jamsen, Anni, Barnes, Ellie, Dunachie, Susie, Frater, John, Klenerman, Paul, Altfeld, Marcus and Goulder, Philip 2022. A simple, robust flow cytometry-based whole blood assay for investigating sex differential interferon alpha production by plasmacytoid dendritic cells. Journal of Immunological Methods 504 , 113263. 10.1016/j.jim.2022.113263

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Abstract

Central to sex differences observed in outcome from infection and vaccination is the innate immune response, and specifically production of type I interferons by plasmacytoid dendtiric cells (pDCs), the main producers of IFN-α. Evaluation of IFN-α production by pDCs is therefore critical for studies of innate immune function. However, reliable measurement of pDC IFN-α is hampered by reduced cell yields and cytokine production after cryopreservation or after even short delays in stimulating freshly isolated cells. We here describe a simple yet robust method for measuring IFN-α production in pDCs that preserves cell activation and cytokine production through immediate stimulation of whole blood and subsequent maintenance at 37 °C.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Medicine
Publisher:	Elsevier
ISSN:	0022-1759
Date of First Compliant Deposit:	26 January 2024
Date of Acceptance:	21 March 2022
Last Modified:	26 Jan 2024 12:29
URI:	https://orca.cardiff.ac.uk/id/eprint/165616

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