目的:探讨甲基苯丙胺(冰毒)对 HIV 感染者巨噬细胞炎性蛋白(MIP)-1α、MIP-1β、IL-6表达的影响。方法设吸食甲基苯丙胺的 HIV 感染组、无吸毒史的 HIV 感染组、吸食甲基苯丙胺的非HIV 感染组和健康对照组,每组15名。流式细胞仪检测 HIV 感染者 CD4+ T 淋巴细胞计数,并测定HIV 载量;ELISA 法检测血浆 MIP-1α、MIP-1β、IL-6表达水平。组间差异比较和交互作用分析采用 t检验和方差分析。结果在 HIV 感染者中,吸食甲基苯丙胺者与非吸毒者比较,CD4+ T 淋巴细胞明显下降、HIV 载量明显升高(t 值分别为5.431,4.670,均 P <0.01)。在 HIV 感染者中,吸食甲基苯丙胺者 MIP-1α、MIP-1β、IL-6表达量分别为(40.60±9.84)、(47.35±11.25)和(37.94±11.44) pg/mL ,无吸毒史者分别为(31.31±8.11)、(39.40±8.41)和(31.31±8.11) pg/mL(t=2.822,P=0.001;t=2.192, P=0.020;t=1.831,P=0.043);非 HIV 感染者中,吸食甲基苯丙胺者 MIP-1α、MIP-1β、IL-6分别为(24.45±5.90)、(27.82±7.25)和(27.18±8.57) pg/mL ,健康对照组分别为(28.42±5.79)、(31.76±9.04)和(23.28±6.07) pg/mL(t=1.860,P=0.158;t=1.317,P=0.233;t=1.438,P=0.228)。甲基苯丙胺与 HIV 感染在调节上述细胞因子表达水平时,均不存在交互作用(均 P>0.05)。结论吸食甲基苯丙胺可上调 MIP-1α、MIP-1β的表达,表明甲基苯丙胺可能在促进 HIV 的感染中具有调节作用。
Objective To investigate the impact of methamphetamine (Meth) on the expressions of macrophage inflammatory protein (MIP)-1α ,MIP-1β ,interleukin (IL)-6 among human immunodeficiency virus(HIV)-infected patients .Methods The investigation was performed among 15 Meth-abuse and HIV-infected subjects (Meth + HIV ) ,15 non-Meth-abuse and HIV-infected subjects (non-Meth + HIV ) ,15 Meth-abuse and HIV-uninfected subjects (Meth) ,and 15 healthy subjects (HC) .CD4 + T lymphocyte counts in peripheral blood were detected by flow cytometry .The HIV viral loads in HIV-infected patients were detected by standard detection method .The levels of plasma MIP-1α ,MIP-1β and IL-6 from four groups were determined by enzyme-linked immunosorbent assay (ELISA ) .Intergroup difference was compared using t-test and interactive analysis was conducted using analysis of variance .Results In HIV-infected patients ,CD4 + T lymphocyte counts in Meth + HIV group was significant lower than non-Meth +HIV group (t= 5 .431 , P〈 0 .01) ,whereas HIV viral load in Meth + HIV group was significant higher than non-Meth + HIV group (t= 4 .670 , P 〈 0 .01) .The levels of MIP-1α ,MIP-1β and IL-6 in Meth +HIV group were (40 .60 ± 9 .84) pg/mL , (47 .35 ± 11 .25 ) pg/mL and (37 .94 ± 11 .44 ) pg/mL , respectively ,and those in non-Meth + HIV group were (31 .31 ± 8 .11) pg/mL ,(39 .40 ± 8 .41) pg/mL and (31 .31 ± 8 .11) pg/mL ,respectively .The levels of MIP-1α ,MIP-1β and IL-6 in Meth + HIV group were all significantly higher than those in non-Meth + HIV group(t = 2 .822 , P= 0 .001 ;t = 2 .192 , P=0 .020 ;t= 1 .831 , P = 0 .043 ,respectively ) .The levels of MIP-1α ,MIP-1β and IL-6 in Meth group were (24 .45 ± 5 .90) pg/mL ,(27 .82 ± 7 .25) pg/mL and (27 .18 ± 8 .57) pg/mL ,respectively ,and those in HC group were (28 .42 ± 5 .79) pg/mL ,(31 .76 ± 9 .04) pg/mL and (23 .28 ± 6 .07) pg/mL ,respectively .But there wer