免疫抑制的

Prepare 131I-labbelled anti-CD20 monoclonal antibody using lodogen iodine labelling;(2)Measure the immunity activation of labbelled antibody by means of both cell combine analysis and LDH cytotoxicity detection kit;(3)Evaluate the injury rate of tumor exposed to 131I-chimeric anti-CD20 monoclonal antibody in vitro. The MTT method and the experiment of cell growth control are used;(4)Record the apotosis of Daudi cell using gelose electrophoresis;(5)Learn the inhibition effect of radioactive medication on the marrow. Radiohnmunoimages are taken on various intervals after injection of the labeled antibodies to the nude mice. The distribution of radioactive medication, I31l-labeled antibodies, in the marrow tissue indicates the inhibition effect. Here a B cell non-hodgkin lymphoma model in nude mice is established by us;(6)28-day observation are done in 3 groups of nude mice model.

(1) 用lodogen标记法制备131I-国产人鼠嵌合抗CD20单抗；(2)采用细胞结合分析法和乳酸脱氢酶法细胞杀伤性实验测定131I标记后国产人鼠嵌合抗CD20单抗与靶细胞的免疫活和利结合能力；(3) MTT法和细胞生长抑制实验测定131I-国产人鼠嵌合抗CD20单抗的体外杀瘤活性；(4)用琼脂糖凝胶电泳法研究131I-国产人鼠嵌合抗CD20单抗致Daudi细胞凋亡；(5)建立荷人B细胞淋巴瘤移植瘤裸鼠模型，应用γ计数法检测注射到荷瘤裸鼠体内的131I-国产人鼠嵌合抗CD20单抗的组织分布情况，明确其靶向性；(6)将荷瘤裸鼠分3组进行放射免疫治疗，分别为阴性对照组、131I-国产人鼠嵌合抗CD20单抗组、国产人鼠嵌合抗CD20单抗组。

Objective To analyze humoral immune response to nucleic acid vaccines (VR1012/TPA/HG-MSP1-17 for intracellular expression or VR1012/HG-MSP1-17 for secretion) which contain Plasmodium falciparum Merozoite surface protein 1(MSP1) 17 block gene and gene fragment of several T cell epitopes from MSA1, MSA2, RESA, IL-1 and TT and to monitor the effect of DNA-immune sera on parasite inhibition.

摘 要：目的检测以恶性疟原虫裂殖子表面蛋白1的17区片段基因为基础的复合核酸疫苗(分泌性的VR1012/TPA/HG-MSP1-17和非分泌性的VR1012/HG-MSP1-17)诱导小鼠的体液免疫反应和免疫血清对疟原虫生长的抑制能力。

CIK cells are highly efficient cytolytic effector cells which have a stronger significant suppression against growth of glioma in vitro and in vivo.

CIK细胞是一种新型和高效的免疫活性细胞，具有较强的体内外抑制胶质瘤生长的作用，有可能用于临床上脑胶质瘤的过继性免疫治疗。

The pre erythrocytic stage vaccines aim to prevent the development of all clinical symptoms and subsequent malaria transmission. Erythrocytic stage vaccine designed aims to induce antibodies that prevent invasion and infection of erythrocytes, to reduce morbidity and mortality by decreasing the parasite load.

作用于红细胞前期的疟疾疫苗主要是抑制疟疾的临床发作，控制疟疾的传播；作用于红细胞期的疟疾疫苗诱导宿主体液免疫系统，产生特异性抗体，抑制疟原虫侵入和感染红细胞，达到减少疟原虫虫荷，降低疟疾的发病率和死亡率。

Despite evidence implicating prostaglandins as critical factor in male reproductive functions, little is known about expression and function of COX-2 in the male reproductive system. By using immunohistochemistry, RT-PCR and Western-blot, the content of this research included:(1) The expression and localization of COX-2 in mature rat and human testis were examined.(2) We investigated the changes of spermatogenesis and testosterone levels in testis after by using the COX-2 specific inhibitor-rofecoxib at 2, 4 and 8 weeks.(3) To explore the relationship between the intratesticular level of testosterone and expression of COX-2 by completely destroying the Leydig cells of mature male rats with injection of a single I.

本课题应用免疫组织化学、RT-PCR和Western-blot等方法检测以下内容：(1)在mRNA和蛋白水平检测正常成年男性及大鼠睾丸组织中COX-2的表达及定位情况；(2)实验组大鼠持续给予COX-2酶的特异性抑制剂Rofecoxib，分别于用药后2周、4周和8周检测大鼠的精子生成以及睾丸组织内睾酮浓度的变化；(3)另一组实验大鼠给予特异性Leydig细胞灭活剂EDS，在特定时间内抑制睾丸组织内合成的睾酮，于用药后2周和4周，采用免疫组织化学及RT-PCR方法观察大鼠睾丸组织内睾酮浓度变化对COX-2合成的影响。

Methods:Prepared multilaminar liposome vaccine by film evaporaqtion combined with lyophilization; Immunized BALB/c mice with the obtained liposomeencapsulated influenza split vaccine and the routine influenza split vaccine, serum antibodies were assayed on weeks 213 by the haemagglutinationinhibition test and ELISA, the HI test for the special antiHA antigen and the ELISA test for the IgG. Protective immunity against intranasal virus challenge was determined at 12 weeks postvaccination.

采用薄膜法与冷冻干燥法相结合的方法制得多层脂质体；用制得的脂质体流感疫苗和普通疫苗分别免疫小鼠，用血凝抑制实验和酶联免疫吸附试验对免后2～13周的小鼠血清的抗体水平进行检测，HI检测其特异性抗体，ELISA检测IgG抗体水平并对小鼠的保护效率进行检测。

These results indicated that they may be due to the mechahism of DNBEP to trest ITP by means of selective suppressiong of humoral immune function, two-way regulation of the cell immune function and recovery of the platelet function.

提示养血清癜汤的疗效机制是通过对体液免疫的选择性抑制作用，对细胞免疫的双向调节作用和对血小板功能的恢复作用来实现的。

Heat-clearing and detoxicating, supplementing Qi and nourishing Yin, removing toxic material phlegm blockd and blood stasis are important treatment principal of VP. Qingyang decoction may reduce the immunopathological injury caused by virus through regulating the expressing level of cytokine and balancing the immune state of the body. It's possible the one mechanism for Qingyang decoction to anti-influenza virus by improving the ability of the organism.

清养汤通过抑制流感病毒感染小鼠机体内炎症相关因子的水平，调节病毒感染小鼠的免疫细胞因子水平，进而整体调节机体的免疫功能，提高机体的抗病毒能力，减轻炎性损伤的作用，可能是清养汤抗流感病毒性肺炎的作用机制之一。

objective:to investigate the expression and significance of rb in the occurrence, development and regression of infantile hemangiomas.methods:the expression of rb was examined in the proliferative stage and catagen of human hemangiomas and normal skin tissues by using immunohistochemical technique.immunohistochemical technique for factorⅷ-related antigen was used to prove that the cells which expressed rb were endothelium.image analysis system was applied to measure the expression level of rb at different stages of hemangiomas and in normal skin tissues.results:the expression of rb was significantly lower in proliferating hemangiomas than that in involuting hemangomas(p.05).conclusion:rb might play an important role in the regression of human hemangioma endothelial cells and anti-angiogenesis.

目的：探讨rb蛋白在血管瘤发生、发展及退化过程中的表达状况及其意义。方法：采用免疫组织化学方法检测人皮肤血管瘤增生期、退化期及正常皮肤组织中rb的表达水平，并结合第ⅷ因子相关抗原的免疫组织化学染色证实表达rb的细胞是血管内皮细胞。利用计算机图像分析技术测量不同时期血管瘤组织和正常皮肤组织rb表达的积分光密度和面积。结果：增生期血管瘤内皮细胞rb表达水平低于退化期，差异有显著性（p.05），退化期血管瘤内皮细胞rb表达水平与正常皮肤组织相比，差异有显著性（p.05）。结论：rb通过抑制血管瘤内皮细胞增殖和血管生成而在血管瘤的退化过程中起重要作用。

CD4+CD25+ regulatory T cells(CD4+CD25+ Tregs) can suppress the useful immune response against tumors, which lead to immune tolerance to tumors in tumor patients.

CD4+CD25+调节性T细胞(CD4+CD25+ regulatory T cells， CD4+CD25+ Tregs)可抑制机体对肿瘤的免疫应答，导致不利于肿瘤患者的对肿瘤的免疫耐受。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。