The Repertoires of Circulating Human CD8⁺ Central and Effector Memory T Cell Subsets Are Largely Distinct

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• 作者：Vé ; ronique Baron ; Cé ; cile Bouneaud ; Ana Cumano ; Annick Lim ; T. Petteri Arstila ; Philippe Kourilsky ; Laurent Ferradini and Christophe Pannetier
• 刊名：Immunity
• 出版年：2003
• 出版时间：February 2003
• 年：2003
• 卷：18
• 期：2
• 页码：193-204
• 全文大小：386 K

文摘

Memory T cells are divided into central and effector subsets with distinct functions and homing capabilities. We analyzed the composition and dynamics of the CD8⁺ T cell repertoire of these subsets within the peripheral blood of four healthy individuals. Both subsets had largely distinct and autonomous TCRβ repertoires. Their composition remained stable over a 9 month period, during which no cell passage between these subsets was detected despite important size variation of several clones. In one donor, four out of six TCRβ clonotypes specific for the influenza A virus were detected in the central subset only, while the two others were shared. Altogether, these observations suggest that most effector memory T cells may not have derived from the central memory subset.