The clonal composition of human CD4+CD25+Foxp3+ cells determined by a comprehensive DNA-based multiplex PCR for TCRB gene rearrangements

Scheinberg, Phillip, Melenhorst, Jan J., Hill, Brenna J., Keyvanfar, Keyvan, Barrett, A. John, Price, David ORCID: https://orcid.org/0000-0001-9416-2737 and Douek, Daniel C. 2007. The clonal composition of human CD4+CD25+Foxp3+ cells determined by a comprehensive DNA-based multiplex PCR for TCRB gene rearrangements. Journal of Immunological Methods 321 (1-2) , pp. 107-120. 10.1016/j.jim.2007.01.005

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Abstract

The characterization of the T-cell receptor (TCR) repertoire of CD4+ regulatory T cells (TR) have been limited due to the RNA degradation that results following permeabilization and fixation as routinely used for intracellular staining of Foxp3. In the present study the clonal composition of human umbilical cord blood (UCB) and adult peripheral blood mononuclear cells (PBMC) CD4+ TR and non-TR was characterized by a DNA-based multiplex PCR which allowed for the consistent clonotypic characterization of cells that have undergone fixation and permeabilization. To validate this method, CD8+ T cells from two HLA A*0201 individuals were sorted and compared clonotypically based upon their ability either to secrete interferon-γ in response to a CMV pp65 epitope or to bind to the corresponding pMHC I tetramer. In the UCB and PBMCs clonotypes shared between the CD4+CD25+Foxp3+ and CD4+CD25+Foxp3− was observed in all 3 UCB and in one adult PBMCs, suggesting that naïve and memory CD4+ TR can share the same clonotypes as CD4+ non-TR in humans.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > R Medicine (General)
Publisher:	Elsevier
ISSN:	0022-1759
Date of First Compliant Deposit:	29 April 2016
Date of Acceptance:	10 January 2007
Last Modified:	18 Nov 2024 05:45
URI:	https://orca.cardiff.ac.uk/id/eprint/90176

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