Selective accumulation of virus-specific CD8+ T cells with unique homing phenotype within the human bone marrow

Umaimainthan Palendira, Rosanna Chinn, Wajid Raza, Karen Piper, Guy Pratt, L Machado, Andrew Bell, N Khan, Andrew Hislop, R Steyn, Alan Rickinson, Christopher Buckley, Paul Moss

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)
6 Downloads (Pure)


The bone marrow plays a unique role within the immune system. We compared the phenotype and function of virus-specific CD8(+) T cells from matched samples of human peripheral blood and bone marrow. Analysis of virus-specific memory CD8(+) T cells showed widely divergent partition of antigen-specific populations between blood and bone marrow. T cells specific for Epstein-Barr virus (EBV) lytic antigens were enriched 3-fold in marrow compared with blood, whereas the response to EBV latent epitopes was equivalent between the 2 compartments. No difference in EBV viral load or expression of the EBV lytic protein was observed between blood and bone marrow. In direct contrast, although cytomegalo-virus (CMV)-specific T cells were the largest virus-specific population within peripheral blood, they were reduced by 60% within marrow. Bone marrow T cells were found to exhibit a unique CCR5(+)CXCR6(+)CXCR3(-) homing phenotype which has not been observed on T cells from other secondary lymphoid organs or peripheral organs. Expression of CCR5 and CXCR6 was higher on EBV-specific T cells within peripheral blood compared with CMV-specific populations. These observations identify a novel bone marrow homing phenotype for CD8(+) memory T cells, which necessitates a reevaluation of the magnitude of antigen-specific populations within the lymphoid system.
Original languageEnglish
Pages (from-to)3293-302
Number of pages10
Issue number8
Publication statusPublished - 15 Oct 2008


Dive into the research topics of 'Selective accumulation of virus-specific CD8+ T cells with unique homing phenotype within the human bone marrow'. Together they form a unique fingerprint.

Cite this