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β淀粉样蛋白诱导的阿尔茨海默病模型大鼠脑内骨桥蛋白和白细胞介素17表达的变化及相关性分析 被引量:4

Expression and correlation of osteopontin and interleukin-17 in beta-amyloid induced Alzheimer's disease model rats
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摘要 目的 探讨骨桥蛋白(OPN)和白细胞介素17(IL-17)在β淀粉样蛋白(Aβ)神经毒性及阿尔茨海默病(AD)病理机制中的作用.方法 36只成年雄性SD大鼠随机分为3组:假手术组(Sham,S),AD模型7天组(AD7d),AD模型14d组(AD14d).Morris水迷宫测试各组大鼠认知功能;酶联免疫吸附试验(ELISA)检测各组大鼠脑脊液和血清IL-17和OPN含量变化.结果 Morris水迷宫显示与S组(12.27±3.28)比较,AD7d组(33.12±7.76)和AD14d组(45.03±6.85)大鼠潜伏期均显著延长(P =0.002、P=0.000),AD 14 d组比AD7 d组潜伏期显著延长(P=0.000).与S组(37.72±6.46)比较,AD7d组(31.48±6.18)和AD14d组(28.55±9.22)大鼠目标象限停留时间百分比显著减少(P=0.005、P=0.031).与S组(9.47±1.15)比较,AD7d组(13.35±1.74)和AD14d组(15.86±2.13)大鼠脑脊液IL-17含量显著增加(P=0.000、P=0.000).与AD7d组比较,AD14d组大鼠脑脊液IL-17含量显著增加(P=0.002).与S组(8.44 ±0.92)比较,AD7d组(10.38±2.15)和AD14d组(11.64±1.60)大鼠血清IL-17含量显著增加(P =0.033、P=0.000).与S组(5.90±0.81)比较,AD7d组(18.51±7.57)和AD14d组(41.54±6.68)大鼠脑脊液OPN含量显著增加(P=0.000、P=0.000).与AD7d组比较,AD14d组脑脊液OPN含量显著增加(P=0.000).与S组(176.54±23.69)比较,AD7d组(227.15±20.56)和AD14d组(302.19±12.19)大鼠血清OPN含量显著增加(P=0.000、P=0.000).与AD7d组比较,AD14d组血清OPN含量显著增加(P=0.000).AD7 d组和AD14 d组脑脊液和血清中IL-17和OPN含量变化均呈显著正相关(P=0.000).结论 Aβ1-42脑室内注射能够引起大鼠脑脊液、外周血IL-17和OPN含量增加,且脑脊液和血清中IL-17和OPN含量在AD大鼠模型中呈明显的正相关. Objective To investigate the role of osteopontin (OPN) and interleukin-17 (IL-17) in neurotoxic mechanisms of beta-amyloid (Aβ3) and the pathogenesis of Alzheimer' s disease (AD).Methods 36 adult male SD rats were divided into 3 groups randomly:Sham group (S),7 day AD model group (AD7d) and 14 day AD model group (AD14d).Morris Water Maze test was used to assess cognitiye function.The levels of IL-17 and OPN in cerebrospinal fluid(CSF) and serum were examined by enzyme-linked immunosorbent assay (ELISA) assay.Results In Morris Water Maze test,compared with S group (12.27 ± 3.28),the latencies in AD7d group (33.12 ±7.76) and AD14d group (45.03 ±6.85) were significantly increased (P=0.002,P =0.000).Compared with AD7d group,the latency in AD14d group was significantly prolonged (P =0.000).Compared with S group (37.72 ± 6.46),the time percentage in AD7d group (31.48 ± 6.18) and AD14d group (28.55 ± 9.22) was significantly decreased (P =0.005,P =0.031).Compared with S group (9.47 ±1.15),a remarkable(P =0.000,P =0.000) elevation of IL-17 in the CSF of AD7d group (13.35 ± 1.74) and AD14d group (15.86 ± 2.13) was observed.Compared with AD7d group,the CSF IL-17 level in AD14d group was significantly increased (P =0.002).Compared with S group (8.44 ± 0.92),a remarkable (P =0.033,P =0.000) elevation of IL-17 in the serum of AD7 d group (10.38 ± 2.15) and AD14d group (11.64 ± 1.60) was observed.Compared with S group (5.90 ± 0.81),the OPN concentrations in CSF of AD7d group (18.51 ± 7.57) and AD14d group (41.54 ± 6.68) significantly increased (P =0.000,P =0.000).Compared with AD7d group,the CSF OPN concentration in AD14d group significantly(P =0.000) increased.Compared with S group (176.54 ± 23.69),the OPN concentrations in serum of AD7d group (227.15 ± 20.56) and AD14d group (302.19 ± 12.19) siginificantly increased(P =0.000,P=0.000).Compared with AD7d group
出处 《国际免疫学杂志》 CAS 2016年第1期14-18,共5页 International Journal of Immunology
基金 黑龙江省自然科学基金,黑龙江省博士后资助经费,Natural Science Foundation of Heilongjiang Province,Postdoctoral Fund of Heilongjiang Province
关键词 骨桥蛋白 阿尔茨海默病 白细胞介素-17 β淀粉样蛋白 INTERLEUKIN-17 Osteopontin Alzheimer&#39 s disease β-amyloid
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