长期以来,病毒学家已知道一种称之为细胞毒T淋巴细胞(cytotoxic Tlymphocytes,CTLs)可以追捕受到感染的细胞并释放致死因子,将受染细胞及其所含的病毒杀灭。最近,研究者认识到这种免疫细胞还可采用一种较温和的杀伤方式,例如对付乙型肝炎病毒,这种淋巴细胞可以分沁某些因子,该因子可促进受染细胞破坏它自身所产生的病毒分子,而且这种活性在抑制感染的同时,对受染细胞本身产生伤害。 For a long time, virologists have known that cytotoxic T lymphocytes (CTLs), known as cytotoxic T lymphocytes (CTLs), can chase infected cells and release lethal factors that kill infected cells and the viruses they contain. Recently, the researchers realized that this kind of immune cells could also adopt a milder way of killing, for example against hepatitis B virus. This kind of lymphocyte can divide some factors, which can promote infected cells to destroy itself The resulting virus molecules, and this activity in inhibiting infection at the same time, the infected cells themselves hurt.