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　　T細(xì)?(xi)胞??(bao)的??(de)角??(jiao)色??(se)則??(ze)是??(shi)指??(zhi)揮秘(hui)、“殺??(sha)敵??(di)”與??(yu)“維??(wei)穩(wěn)?(wen)”??。??比??(bi)如??(ru)輔??(fu)助??(zhu)T細(xì)??(xi)胞??(bao)??，扮??(ban)演??(yan)著??(zhe)“指??(zhi)揮??(hui)官??(guan)”角??(jiao)色??(se)??，通??(tong)過??(guo)釋??(shi)放??(fang)細(xì)??(xi)胞??(bao)因??(yin)子??(zi)??，激?(ji)活?(huo)B細(xì)??(xi)胞??(bao)和??(he)其?(qi)他??(ta)免??(mian)疫??(yi)細(xì)??(xi)胞??(bao)；細(xì)?(xi)胞??(bao)毒??(du)性??(xing)T細(xì)??(xi)胞??(bao)??，扮??(ban)演??(yan)著??(zhe)“殺??(sha)手?(shou)”角??(jiao)色??(se)??，直?(zhi)接??(jie)穿??(chuan)透??(tou)感??(gan)染??(ran)細(xì)?(xi)胞?(bao)??，注??(zhu)入??(ru)毒??(du)素??(su)將??(jiang)其?(qi)摧??(cui)毀??(hui)；調(diào)??(tiao)節(jié)??(jie)T細(xì)??(xi)胞??(bao)??，扮??(ban)演??(yan)著??(zhe)“維??(wei)穩(wěn)??(wen)員??(yuan)”角??(jiao)色??(se)??，防??(fang)止??(zhi)免??(mian)疫??(yi)反??(fan)應(yīng)??(ying)過??(guo)度??(du)??，避??(bi)免??(mian)誤??(wu)傷??(shang)健??(jian)康??(kang)組??(zu)織??(zhi)???！　?zhǔn)??(zhun)確??(que)來??(lai)說??(shuo)??，免?(mian)疫??(yi)系??(xi)統(tǒng)??(tong)需??(xu)要??(yao)的?(de)是??(shi)“精??(jing)準(zhǔn)??(zhun)調(diào)??(tiao)控?(kong)”??，而??(er)非??(fei)“盲?(mang)目??(mu)增??(zeng)強??(qiang)”?。??過??(guo)度??(du)激??(ji)活??(huo)的??(de)免??(mian)疫??(yi)反??(fan)應(yīng)??(ying)如??(ru)同??(tong)失??(shi)控??(kong)的?(de)軍??(jun)隊?(dui)??，不??(bu)僅??(jin)無??(wu)法?(fa)保??(bao)護(hù)??(hu)健??(jian)康??(kang)??，反??(fan)而??(er)會??(hui)引??(yin)發(fā)??(fa)內(nèi)??(nei)亂??(luan)?。。