目的:探讨慢性乙型肝炎患者外周血中CD11c+髓样树突状细胞(mDC)相对数量和细胞表型的变化,以及与HBV持续感染之间的关系.方法:2007-03/2007-10瑞金医院感染科住院及门诊慢性乙型肝炎患者28例,另设健康对照组21例(均为本院职工).流式细...目的:探讨慢性乙型肝炎患者外周血中CD11c+髓样树突状细胞(mDC)相对数量和细胞表型的变化,以及与HBV持续感染之间的关系.方法:2007-03/2007-10瑞金医院感染科住院及门诊慢性乙型肝炎患者28例,另设健康对照组21例(均为本院职工).流式细胞分析技术检测受试者外周血mDC的百分比数.磁珠分选方法分离纯化mDC,流式细胞仪检测mDC表面共刺激分子CD80和CD86.结果:与健康对照组相比,慢性乙肝患者CD11c+mDC占外周血单个核细胞的频数明显降低,差异有统计学意义(0.38%±0.61% vs 0.77%±0.56%,P<0.05).慢性乙肝患者外周血mDC频数与血清ALT水平、病毒载量呈负相关(r=-0.374,-0.435,均P<0.05),患者组不同肝脏炎症程度mDC频数存在差异.新鲜分离的mDC表面共刺激分子CD80和CD86表达较低,但患者组CD86的表达明显高于正常对照组,差异有统计学意义(45.26%±21.54% vs 18.71%±10.93%,P<0.05).结论:慢性乙型肝炎患者外周血CD11c+mDC亚群百分比降低,但mDC表面共刺激分子表达率并未严重受损,外周血中CD11c+mDC数量减少可能与血清病毒载量及肝脏炎症程度相关.展开更多
AIM To verify whether curcumin (Cur) can treat inflammatory bowel disease by regulating CD8(+)CD11c(+) cells. METHODS We evaluated the suppressive effect of Cur on CD8(+)CD11c(+) cells in spleen and Peyer's patche...AIM To verify whether curcumin (Cur) can treat inflammatory bowel disease by regulating CD8(+)CD11c(+) cells. METHODS We evaluated the suppressive effect of Cur on CD8(+)CD11c(+) cells in spleen and Peyer's patches (PPs) in colitis induced by trinitrobenzene sulfonic acid. Mice with colitis were treated by 200 mg/kg Cur for 7 d. On day 8, the therapeutic effect of Cur was evaluated by visual assessment and histological examination, while co-stimulatory molecules of CD8(+)CD11c(+) cells in the spleen and PPs were measured by flow cytometry. The levels of interleukin (IL)-10, interferon (IFN)-gamma and transforming growth factor (TGF)-beta 1 in spleen and colonic mucosa were determined by ELISA. RESULTS The disease activity index, colon weight, weight index of colon and histological score of experimental colitis were obviously decreased after Cur treatment, while the body weight and colon length recovered. After treatment with Cur, CD8(+)CD11c(+) cells were decreased in the spleen and PPs, and the expression of major histocompatibility complex., CD205, CD40, CD40L and intercellular adhesion molecule-1 was inhibited. IL-10, IFN-gamma and TGF-beta 1 levels were increased compared with those in mice with untreated colitis. CONCLUSION Cur can effectively treat experimental colitis, which is realized by inhibiting CD8(+)CD11c(+) cells.展开更多
文摘目的:探讨慢性乙型肝炎患者外周血中CD11c+髓样树突状细胞(mDC)相对数量和细胞表型的变化,以及与HBV持续感染之间的关系.方法:2007-03/2007-10瑞金医院感染科住院及门诊慢性乙型肝炎患者28例,另设健康对照组21例(均为本院职工).流式细胞分析技术检测受试者外周血mDC的百分比数.磁珠分选方法分离纯化mDC,流式细胞仪检测mDC表面共刺激分子CD80和CD86.结果:与健康对照组相比,慢性乙肝患者CD11c+mDC占外周血单个核细胞的频数明显降低,差异有统计学意义(0.38%±0.61% vs 0.77%±0.56%,P<0.05).慢性乙肝患者外周血mDC频数与血清ALT水平、病毒载量呈负相关(r=-0.374,-0.435,均P<0.05),患者组不同肝脏炎症程度mDC频数存在差异.新鲜分离的mDC表面共刺激分子CD80和CD86表达较低,但患者组CD86的表达明显高于正常对照组,差异有统计学意义(45.26%±21.54% vs 18.71%±10.93%,P<0.05).结论:慢性乙型肝炎患者外周血CD11c+mDC亚群百分比降低,但mDC表面共刺激分子表达率并未严重受损,外周血中CD11c+mDC数量减少可能与血清病毒载量及肝脏炎症程度相关.
基金Supported by the National Natural Science Foundation of China,No.81260595 and No.81460679Chinese Scholar-ship Council and Jiangxi Province as visiting scholar,No.201408360106 and No.201408360110+1 种基金the Traditional Chinese Medicine Project of Health Department of Jiangxi Province,No.2015B049Jiangxi University of Traditional Chinese Medicine,No.JZYC15S13
文摘AIM To verify whether curcumin (Cur) can treat inflammatory bowel disease by regulating CD8(+)CD11c(+) cells. METHODS We evaluated the suppressive effect of Cur on CD8(+)CD11c(+) cells in spleen and Peyer's patches (PPs) in colitis induced by trinitrobenzene sulfonic acid. Mice with colitis were treated by 200 mg/kg Cur for 7 d. On day 8, the therapeutic effect of Cur was evaluated by visual assessment and histological examination, while co-stimulatory molecules of CD8(+)CD11c(+) cells in the spleen and PPs were measured by flow cytometry. The levels of interleukin (IL)-10, interferon (IFN)-gamma and transforming growth factor (TGF)-beta 1 in spleen and colonic mucosa were determined by ELISA. RESULTS The disease activity index, colon weight, weight index of colon and histological score of experimental colitis were obviously decreased after Cur treatment, while the body weight and colon length recovered. After treatment with Cur, CD8(+)CD11c(+) cells were decreased in the spleen and PPs, and the expression of major histocompatibility complex., CD205, CD40, CD40L and intercellular adhesion molecule-1 was inhibited. IL-10, IFN-gamma and TGF-beta 1 levels were increased compared with those in mice with untreated colitis. CONCLUSION Cur can effectively treat experimental colitis, which is realized by inhibiting CD8(+)CD11c(+) cells.
