TY - JOUR
T1 - Memory lineage relationships in HTLV-1-specific CD8+ cytotoxic T cells
AU - Johnson-Nauroth, Julie M.
AU - Graber, Jerome
AU - Yao, Karen
AU - Jacobson, Steve
AU - Calabresi, Peter A.
N1 - Funding Information:
This work was supported by NS041435 (PAC) and NINDS, NIH intramural program (SJ).
PY - 2006/7
Y1 - 2006/7
N2 - Cytotoxic memory T cells play a critical role in combating viral infections; however, in some diseases they may contribute to tissue damage. In HAM/TSP, HTLV-1 Tax 11-19+ cells proliferate spontaneously in vitro and can be tracked using the Tax 11-19 MHC Class I tetramer. Immediately ex vivo, these cells were a mix of CD45RA-/CCR7- TEM and CD45RA+/CCR7- TDiff memory CTL. The subsequent proliferating Tax 11-19 tetramer+ population expressed low levels of IL-7Rα, failed to respond to IL-7 and IL-15, and did not develop a TCM phenotype. Thus, chronic exposure to viral antigen may result in a sustained pool of TEM cells that home to the CNS and mediate the spinal cord pathology seen in this disease.
AB - Cytotoxic memory T cells play a critical role in combating viral infections; however, in some diseases they may contribute to tissue damage. In HAM/TSP, HTLV-1 Tax 11-19+ cells proliferate spontaneously in vitro and can be tracked using the Tax 11-19 MHC Class I tetramer. Immediately ex vivo, these cells were a mix of CD45RA-/CCR7- TEM and CD45RA+/CCR7- TDiff memory CTL. The subsequent proliferating Tax 11-19 tetramer+ population expressed low levels of IL-7Rα, failed to respond to IL-7 and IL-15, and did not develop a TCM phenotype. Thus, chronic exposure to viral antigen may result in a sustained pool of TEM cells that home to the CNS and mediate the spinal cord pathology seen in this disease.
KW - Cytotoxic T cells
KW - Memory
KW - Viral infection
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U2 - 10.1016/j.jneuroim.2006.03.013
DO - 10.1016/j.jneuroim.2006.03.013
M3 - Article
C2 - 16740321
AN - SCOPUS:33746101078
SN - 0165-5728
VL - 176
SP - 115
EP - 124
JO - Advances in Neuroimmunology
JF - Advances in Neuroimmunology
IS - 1-2
ER -