期刊
JOURNAL OF IMMUNOLOGY
卷 179, 期 1, 页码 64-70出版社
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.179.1.64
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Ag-specific, CD8(+) CTLs clear influenza A viruses from the lung via granzyme (Gzm) and perforin-dependent mechanisms. Ex vivo analysis of perforin-Gzm mRNA profiles demonstrated substantial heterogeneity in patterns of effector mRNA transcription of CD8(+) (DNP366)-N-b- or D(b)PA(224)-specific CTL. The only difference between the two epitope-specific sets was apparent very early after infection with similar molecular profiles seen in peak primary and secondary responses and in long-term memory. Surprisingly, memory T cells also expressed a diverse pattern of effector mRNA profile with an emphasis on GzmB and, surprisingly, GzmK. This analysis thus defines how naive, effector, and memory T cells differ in cytotoxic potential and provides novel insight into the molecular signatures of effector molecules observed at various stages after infection.
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