前列腺酸性磷酸酶提取和抗血清制备

前列腺酸性磷酸酶提取和抗血清制备陈复兴，栾建凤，黄宇峰，武建国前列腺酸性磷酸酶（Ｐｒｏｓｔａｔｉｃａｃｉｄｐｈｏｓｐｈａｔａｅ、ＰＡＰ）是一种分子量为１００ＫＤ的唾液酸蛋白、由二个相同亚基组成。临床上常将血清ＰＡＰ增高作为前列腺癌的诊断指标。最近研究...     

不同培养时间的CD_3AK与LAK细胞对8株瘤细胞系的细胞毒活性分析比较

不同培养时间的ＣＤ_３ＡＫ与ＬＡＫ细胞对８株瘤细胞系的细胞毒活性分析比较刘军权，陈复兴，韩惠敏（江苏省徐州市９７医院，２２１００４）经抗ＣＤ３单克隆抗体激活的杀伤细胞（ＣＣＬＬＣＤ３ＭｃＡｂＡｃｔｉｖａｔｅｄＫｉｌｌｅｒｃｅｌｌ）即ＣＤ３ＡＫ细胞已经...     

胃恶性上皮核仁组成区相关蛋白的研究

用嗜银染色技术对34例良性胃溃疡、40例胃粘膜异型增生、46例胃腺癌组织石蜡切片中的核仁组成相关蛋白(AgNOR)进行研究,25例正常胃粘膜组织作对照。发现对照组、良性溃疡组,异型增生组和腺癌组的细胞核AgNOR平均计数差异有显著性(P<0.01)。恶性细胞中AgNOR的体积、形状及在细胞核内的位置也不相同。作者认为此法有助于区别胃的良性和恶性病变。     

The effect of Fufangkushen on gastric cancer cell killing by lines SGC-7901 human γδT cell

Objective To explore the effect of Fufangkushen on gastric cancer cell killing by human γδT cells. Methods Isopentenyl pyrophosphate method was used to amplify human peripheral blood γδT cells in vitro. Fufangkushen at various concentrations was used to induce γδT cells and gastric cancer cell lines SGC-7901 for 24 hours, MTr assays was used to detect inhibitory effect of Fufangkushen on these cell lines, LDH assays was used to measure the cytotoxic activity of γδT cells, and flow cytometry was used to detect apoptosis of γδT cells and SGC-7901 before and after the treatment. Results Ten days after cultivation, proliferation ra-tio of γδT cells increased from 4.21% to 70.35% and CD44 was up to 94.0%. Inhibitory rate of Fufangkush-en on SGC-7901 at various concentrations was significantly higher than that on γδT cells (22.3% vs-22.4%, P<0.05). The negative inhibitory ratio on γδT cells showed a dose-dependent manner with Fufangkushen's concentrations ranging from 1/5 to 1/400. γδT cells cytotoxic activity to SGC-7901 induced by Fufangkushen for 24 h was higher than control group, (83.6% vs 71.2%, P<0.05). Apoptotic rate was significantly lower in γδT cells than in SGC-7901 (4.64% vs49.23%, P<0.05). Conclusion Fufangkushen, within routine concentration ranges, can promote γδT cells' proliferation, inhibit tumor cell growth and enhance γδT cells' cytotoxic activity. This may be beneficial to tumor adoptive immunotherapy and provide evidence for the appli-cation of Fufangkushen in the treatment of tumors.     

γδT细胞与病毒免疫

γδT细胞是指在T细胞受体上表达γ和δ链的一类T细胞亚群，已发现其具有抗肿瘤、抗感染、免疫调节等多种生物学活性。在对病毒感染的免疫中发挥重要的免疫监视作用。本文主要从病毒感染后机体内γδT细胞变化，γδT细胞抗病毒的机制，基于γδT细胞免疫的研究和临床应用等几个方面进行综述。     

手术麻醉对分娩时母婴免疫的影响

目的探讨围生医学中手术麻醉对分娩时母婴免疫功能的影响。方法正常初产妇分为自然分娩（NL）组、择期手术分娩麻醉（PCS）组、急诊手术分娩麻醉（ECS）组,每组20例,用流式细胞术检测分娩时母体外周血和婴儿脐带衄巾B细胞、T淋巴细胞、NK细胞、NKT细胞、γδT细胞的百分比并进行比较。结果母体血中ECS组的B细胞和NKT细胞明显高于NL组、PCS组;婴儿脐血中PCS组的B细胞、NK细胞和T淋巴细胞CD4^＋／CD8^＋明显低于NC组和ECS组（P〈0．05）,γδT细胞显著高于NL组和ECS组（P〈0．01）。结论急诊手术分娩对母体免疫方面的改变与自身应激反应有关,不影响婴儿的细胞免疫状态;择期手术分娩影响婴儿免疫状态。     

舒林酸提高γδT细胞杀伤胃癌细胞机制研究

目的探讨舒林酸提高γδT细胞杀伤胃癌细胞的作用机制。方法常规方法培养γδT细胞,收集培养第9天的γδT细胞用不同浓度的舒林酸（1、2、4、8、16、32μmol／L）诱导24h,收集培养上清液用于细胞因子γ-干扰素（IFN-γ）、肿瘤坏死因子α（TNF—α）和白细胞介素12（IL-12）检测,沉淀细胞用于穿孔素、粒酶B、NKG2D流式细胞测定和用乳酸脱氢酶（LDH）释放法检测γδT细胞杀伤胃癌细胞株（SGC-7901和BCG-823）活性。每组测试样本和指标均设未加药物诱导的对照组。结果舒林酸浓度在8μmol／L时,γδT细胞穿孔素和粒酶B达最高[分别为（71．5±5．3）％和（78．3±7．1）％],明显高于对照组[分别为（51．4±7．3）％和（60．9±7．1）％]。γδT细胞经不同浓度的舒林酸诱导后培养上清液中IL—12和TNF-α浓度没有差异;舒林酸在8μmol／L时上清液中IFN-γ浓度达最高[（246．1±20．7）ng／L],明显高于对照组[（196．1±13．2）ng／L];当舒林酸浓度达32μmol／L时,γδT细胞分泌的3种细胞因子明显低于对照组,两者比较有显著性差异（P〈0．05）。γδT细胞经舒林酸诱导后杀伤SGC-7901和BCG-823细胞活性在8μmol／L时达到峰值,此时对SGC-7901和BCG-823的杀伤活性分别为（73．6±3．9）％和（76．3±3．9）％,与对照组[（60．1±3．7）％和（59．2±4．5）％]比较有明显差异（P〈0．05）。结论舒林酸诱导后γδT细胞杀伤SGC-7901和BCG-823活性明显增高的机制可能与γδT细胞表达穿孔素和粒酶B及分泌的IFN-γ有关。     

The effect of Fufangkushen on gastric cancer cell killing by lines SGC-7901 human γδT cell

Objective To explore the effect of Fufangkushen on gastric cancer cell killing by human γδT cells. Methods Isopentenyl pyrophosphate method was used to amplify human peripheral blood γδT cells in vitro. Fufangkushen at various concentrations was used to induce γδT cells and gastric cancer cell lines SGC-7901 for 24 hours, MTr assays was used to detect inhibitory effect of Fufangkushen on these cell lines, LDH assays was used to measure the cytotoxic activity of γδT cells, and flow cytometry was used to detect apoptosis of γδT cells and SGC-7901 before and after the treatment. Results Ten days after cultivation, proliferation ra-tio of γδT cells increased from 4.21% to 70.35% and CD44 was up to 94.0%. Inhibitory rate of Fufangkush-en on SGC-7901 at various concentrations was significantly higher than that on γδT cells (22.3% vs-22.4%, P<0.05). The negative inhibitory ratio on γδT cells showed a dose-dependent manner with Fufangkushen's concentrations ranging from 1/5 to 1/400. γδT cells cytotoxic activity to SGC-7901 induced by Fufangkushen for 24 h was higher than control group, (83.6% vs 71.2%, P<0.05). Apoptotic rate was significantly lower in γδT cells than in SGC-7901 (4.64% vs49.23%, P<0.05). Conclusion Fufangkushen, within routine concentration ranges, can promote γδT cells' proliferation, inhibit tumor cell growth and enhance γδT cells' cytotoxic activity. This may be beneficial to tumor adoptive immunotherapy and provide evidence for the appli-cation of Fufangkushen in the treatment of tumors.     

手术分娩时机对母婴血中CD4+ CD25+ CD127low调节性T细胞的影响

目的探讨手术分娩时机对母、婴血中CD4+CD25+CD127low调节性T细胞(Treg)的影响。方法正常初产妇60例,按分娩方式分为阴道分娩(VD)、择期手术分娩(PCS)、急诊手术分娩(ECS)三组,每组20例,用流式细胞仪检测分娩时母体外周血和新生儿脐血T细胞中Treg百分数。结果新生儿脐血中Treg三组间比较差异无统计学意义(P>0.05),但PCS组明显高于VD组(P<0.05);母体外周血中Treg,三组中ECS组>PCS组>VD组,ECS组显著性高于VD组(P<0.01);三组母体、新生儿血中Treg均无相关性(P>0.05)。结论 PCS时新生儿血中Treg增高,可能会对婴儿免疫系统发育有一定的影响;分娩过程异常的ECS母体血中Treg增高可能与产妇免疫失衡有关。