Abstract
Humoral adaptive immune responses trigger the establishment of plasma B cells secreting antibodies of various isotypes that bind antigen specifically and with high affinity. Moreover, memory B cells will be generated. To accomplish this, B cells need assistance from a special subset of CD4 T cells, the so called follicular T cells that differentiate from naïve T cells in the course of the immune response. Therefore, the study of follicular T cells is of primordial interest when investigating the molecular and cellular determinants of adaptive immune responses. This is done by direct analysis of the cells isolated from mice following an immunological challenge but in many instances such analyses must involve follow-up studies in cell culture requiring living cells. Especially, in vitro experimentation necessitates isolation and sorting of follicular T cells. However, follicular T cells are generally difficult to handle because they are prone to apoptosis and cell death. This is particularly evident when dealing with follicular T cells residing in the gut since we observed that isolation and processing from murine gut notoriously results in very high loss rates when compared for example to cells obtained from immunized peripheral lymph nodes. To bypass these limitations, we developed a protocol that allows for efficient isolation of intact follicular T cells. The protocol introduced here illustrates isolation and handling of follicular T cells using murine Peyer’s Patches as an example because they constantly harbor significant amounts of these cells.
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Acknowledgments
This work was supported by DFG grant BE1886/5-1 to G.B. and a DFG fellowship GE3062/1-1 to H.G.
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Georgiev, H., Papadogianni, G., Bernhardt, G. (2022). Identification of Follicular T Cells in the Gut. In: Graca, L. (eds) T-Follicular Helper Cells. Methods in Molecular Biology, vol 2380. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1736-6_8
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DOI: https://doi.org/10.1007/978-1-0716-1736-6_8
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Publisher Name: Humana, New York, NY
Print ISBN: 978-1-0716-1735-9
Online ISBN: 978-1-0716-1736-6
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