Abstract:
:Regulatory T cells (Treg) have recently come to the fore in studies of immune regulation, particularly in autoimmune disease and cancer. While there appear to be several distinct subsets of T cells with regulatory function, a population described as natural Treg and characterized by expression of the transcription factor FOXP3 has attracted particular interest. These cells can be enriched using the surface markers CD4 and CD25, and cord blood is a convenient source of CD25+ Treg. We present detailed protocols for the enrichment of Treg from cord blood using CD25 and a magnetic bead procedure, yielding populations >80% positive for CD25 and 50-65% FOXP3 positive. This enrichment can be followed by a second magnetic bead or a flow sorting step, yielding >95% CD25 and >65% FOXP3 positive populations. Protocols are presented for propagation of these cells in culture (yielding >80% FOXP3 positive cells) and for their phenotypic and functional characterization.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Bresatz S,Sadlon T,Millard D,Zola H,Barry SCdoi
10.1016/j.jim.2007.06.006subject
Has Abstractpub_date
2007-10-31 00:00:00pages
53-62issue
1-2eissn
0022-1759issn
1872-7905pii
S0022-1759(07)00199-8journal_volume
327pub_type
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