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Updated: Jul 12, 2026
Isolation of CD4+ T-cells and Analysis of Circulating T-follicular Helper (cTfh) Cell Subsets from Peripheral Blood Using 6-color Flow Cytometry
Published on: January 7, 2019
Protocol for profiling circulating T cell subsets, their homing and regulatory markers, in pediatric samples using a
Tomas Thon1, Jan Svoboda2, Zaneta Slavickova1
1Laboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
None:
Here, we present a protocol for profiling T cell subsets, regulatory phenotypes, and gut- and skin-homing markers of unstimulated cells or those stimulated with staphylococcal enterotoxin B (SEB), lipopolysaccharide (LPS), or zymosan (ZYM). We describe steps for isolation, cryopreservation, thawing, stimulation, and multiparameter flow cytometric analysis of human peripheral blood mononuclear cells (PBMCs). Use of the multicolored panel detailed in this protocol allows full utilization of the valuable samples with the minimal possible volume of collected pediatric blood. For complete details on the use and execution of this protocol, please refer to Thon et al.1.
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