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　　T細(xì)??(xi)胞??(bao)的??(de)角??(jiao)色??(se)則??(ze)是??(shi)指??(zhi)揮??(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(guò)??(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(guò)??(guo)度??(du)??，避??(bi)免??(mian)誤??(wu)傷??(shang)健??(jian)康??(kang)組?(zu)織??(zhi)???！　∑??(qi)實(shí)??(shi)像??(xiang)過(guò)??(guo)敏??(min)性?(xing)疾?(ji)病?(bing)??，就??(jiu)是??(shi)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)將??(jiang)花??(hua)粉??(fen)、塵??(chen)螨??(man)等??(deng)微??(wei)害??(hai)物??(wu)質(zhì)??(zhi)誤??(wu)判??(pan)為??(wei)高??(gao)度??(du)危??(wei)險(xiǎn)??(xian)??，過(guò)??(guo)度??(du)反??(fan)應(yīng)??(ying)引??(yin)發(fā)??(fa)噴?(pen)嚏??(ti)、皮??(pi)疹??(zhen)甚??(shen)至?(zhi)哮??(xiao)喘??(chuan)??。??還??(hai)有??(you)自??(zi)身??(shen)免??(mian)疫??(yi)病??(bing)??，屬??(shu)于??(yu)免??(mian)疫??(yi)系??(xi)統(tǒng)??(tong)“敵??(di)我??(wo)不??(bu)分??(fen)”??，攻??(gong)擊??(ji)自?(zi)身??(shen)關(guān)??(guan)節(jié)??(jie)(如??(ru)類??(lei)風(fēng)??(feng)濕??(shi)關(guān)??(guan)節(jié)??(jie)炎??(yan))、全??(quan)身??(shen)各??(ge)系?(xi)統(tǒng)?(tong)(如??(ru)系??(xi)統(tǒng)??(tong)性??(xing)紅??(hong)斑??(ban)狼??(lang)瘡??(chuang))或??(huo)甲??(jia)狀??(zhuang)腺?(xian)(如??(ru)橋??(qiao)本??(ben)氏??(shi)甲??(jia)狀?(zhuang)腺??(xian)炎??(yan))??。。