Abstract:
:Homeostatic mechanism by which peripheral T-cell subsets are maintained in vivo remains largely unknown. Using a T-cell proliferation model under lymphopenic settings, we now demonstrate that gammadelta T cells limit CD8 T-cell expansion but not the initial proliferation after transfer into lymphopenic recipients. Interleukin-15 (IL-15) produced by and trans-presented on the membrane of the CD11c(+) dendritic cells (DCs) is the key factor that mediates homeostatic competition between CD8 and gammadelta T cells, revealing previously unrecognized IL-15-dependent homeostatic mechanisms between different T-cell subsets in vivo.
journal_name
Bloodjournal_title
Bloodauthors
Do JS,Min Bdoi
10.1182/blood-2008-12-192997subject
Has Abstractpub_date
2009-06-18 00:00:00pages
6361-71issue
25eissn
0006-4971issn
1528-0020pii
blood-2008-12-192997journal_volume
113pub_type
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