Development of a 43 color panel for the characterization of conventional and unconventional T-cell subsets, B cells, NK cells, monocytes, dendritic cells, and innate lymphoid cells using spectral flow cytometry

Fairooz Sahir; Jericha Miles Mateo; Martin Steinhoff; Kodappully Sivaraman Siveen

doi:10.1002/cyto.a.24288

Development of a 43 color panel for the characterization of conventional and unconventional T-cell subsets, B cells, NK cells, monocytes, dendritic cells, and innate lymphoid cells using spectral flow cytometry

Cytometry A. 2020 Dec 18. doi: 10.1002/cyto.a.24288. Online ahead of print.

Authors

Fairooz Sahir¹, Jericha Miles Mateo¹, Martin Steinhoff^{2

3

4

5

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7}, Kodappully Sivaraman Siveen¹

Affiliations

¹ Flow Cytometry Core Facility, Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar.
² Department of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar.
³ Dermatology Institute, Hamad Medical Corporation, Doha, Qatar.
⁴ Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar.
⁵ Department of Dermatology, Weill Cornell Medicine-Qatar, Doha, Qatar.
⁶ Qatar University, Medical School, Doha, Qatar.
⁷ Department of Medicine, Weill Cornell Medical College, New York, New York, USA.

PMID: 33336868
DOI: 10.1002/cyto.a.24288

Abstract

Although many flow cytometers can analyze 30-50 parameters, it is still challenging to develop a 40+ color panel for the phenotyping of immune cells using fluorochrome conjugated antibodies due to limitations in the availability of spectrally unique fluorochromes that can be excited by the commonly used laser lines (UV, Violet, Blue, Green/Yellow-green, and Red). Spectral flowcytometry is capable of differentiating fluorochromes with significant overlap in the emission spectra, enabling the use of spectrally similar fluorochrome pairs such as Brilliant Blue 515 and FITC in a single panel. We have developed a 43 color panel to characterize most of the immune subsets within the peripheral immune system, including conventional T cells, unconventional T cells such as invariant natural killer T cells (iNKT), Gamma delta (γδ) T-cell subsets (TCR Vδ2, TCR Vγ9) and mucosal-associated invariant T cells (MAIT), B-cell subsets, natural killer (NK) cells, plasmacytoid dendritic cells, dendritic cell subsets, hematopoietic progenitor cells, basophils, and innate lymphoid cell (ILC) subsets (CD117, CRTH2). The panel includes surface markers to analyze activation (CD38, HLA-DR, ICOS/CD278), differentiation (CD45RA, CD27, CD28, CD57), expression of cytokine and chemokine receptors (CD25, CD127, CCR10, CCR6, CCR4, CXCR3, CXCR5, CRTH2/CD294), and co-inhibitory molecules and exhaustion (PD-1, CD223/LAG-3, TIGIT), which enables a deep characterization of PBMCs from peripheral blood. Cells were analyzed on a 5-laser Cytek Aurora and data analysis was done using FlowJo. This panel can help to make a thorough interpretation of immune system, specifically when specimen quantity is low. The panel has not been completely optimized but would rather act as a guide toward the development of a workflow for optimized multicolor immunophenotyping panel.

Keywords: dendritic cells; immunophenotyping; innate lymphoid cells; spectral flow cytometry; unconventional T cells.

Abstract

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