Conclusions: Some immune factors such as lower naive t cell, excessive activation and apoptosis are involved in the immunopathogenesis of HIV.

结论人体感染HIV后一些免疫因素如低的幼稚T细胞数、明显的T细胞化及细胞凋亡等参与了致病过程。

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The leading cause of corneal graft failure is T cell-mediated immune rejection. Costimula-tion has been shown to be necessary for full activation of naive T cell.

角膜移植手术失败的主要原因是T细胞介导的免疫排斥反应，T细胞的充分活化需要共刺激信号的协同作用。

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