Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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Outline of Final Research Achievements |
Epstein-Barr virus (EBV)-associated hemophagocytic lymphohistiocytosis (HLH) is characterized by ectopic EBV infection in CD8+ T cells and their clonal proliferation. We demonstrate that EBV-infected cells can be detected as highly activated CD5-/dim CD8+ T cells that often react with a specific TCR Vβ monoclonal antibody in patients with EBV-HLH, who exhibit characteristic profiles of serum cytokines. Although down-regulation of CD5 in CD8+ T cells is not specific for EBV-HLH, the combined approach of our flow cytometric analysis including TCR Vβ repertoire and cytokine profile analysis may be useful in diagnosis and follow-up of patients with EBV-HLH.
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