免疫素

Anthor factor affecting the cellular immunity is the presence of soluble interleukin-2 receptor (sIL-2R) that will compete with the membrane-bound IL-2R and desensitize the immune response.

因为介白素十号(IL-10)有压抑细胞性免疫反应（例如杀手细胞及吞噬细胞），却提升体液性免疫反应的作用，而EB病毒晚期基因BCRF 1与介白素十号有相似的基因序列（又称vIL-10），也可能具有相似的功能。

Immunohistochemical localization of inhibin α-subunit in normal mature rats was carried out by using Strept Avidin-Biotin-Peroxidase Complex .The results showed that there was positive immunoreactivity of the McAb to inhibinα-subunit in heart ,kidney , spleen , lymph ,adrenal gland and pancreas cells. It indicated that inhibinα-subunit existed in the above tissues , But no positive sites were seen in hypothalamus, pituitary, lung and liver, that means they have no inhibinα-subunit. Compared with the ovariectomized rats, the hypothalamus and pituitary of the rats injected with inhibin-α fragment（1～32）showed an positive reaction, suggesting that inhibin α-subunit could pass through the blood-brain barrier .

用链霉亲和素-生物素-过氧化物酶(Strept Avidin-Biotin-Peroxidase Complex， SABC)免疫组织化学方法，以抑制素α亚基单克隆抗体对正常雌性性成熟大鼠各组织的抑制素α亚基进行定位观察，结果显示：⑴大鼠心脏、肾、脾、淋巴、肾上腺、胰腺均呈阳性反应，表明存在抑制素α亚基；下丘脑、垂体、肝脏和肺组织呈阴性反应，表明其不存在抑制素α亚基；⑵与去卵巢大鼠相比，外源注射抑制素α（1～32）片段的大鼠其下丘脑和垂体出现阳性反应，说明抑制素α亚基能通过血脑屏障。

Recombinant plasmid pSVH 7 DNA of avian influenza virus H7 subtype heamagglutinin gene was encapsulated with DC-chol/DOPE liposomes and PC/chol/SA liposomes separately. Two-week old SPF chickens were intramuscularly inoculated with 50 μ g/0.2ml of the liposome entrapped PSVH 7 DNA. Four-weeks later, each chicken was challenged with 0.1ml 〓 AIV . One week after the challenge, the secretion of the cloacas was collected and transfected to chicken embryos to isolate the virus. The virus was isolated from 6/6 of the control group, 1/6 of the naked DNA group, 1/6 of the PC/chol/SA entrapped DNA group and 0/6 of the DC-chol/DOPE liposome entrapped group. The HI antibody titers (log2) of the four groups were 6. 83±0.98, 7. 0±1. 26, 7. 83±1. 17 and 8. 00±0.89 respectively 1-week after challenge, and 8. 5±0.55, 8. 17±0.82, 8. 68±0.45 and 9. 33±0.54 respectively 2-week after challenge. The results showed that inoculation of liposome entrapped DNA significantly enhanced resistance to virosis in animals.

将含禽流感病毒H7亚型血凝素基因的重组质粒pSVH7用DC-chol阳离子脂质体和胆固醇／卵磷脂／十八胺脂质体包裹，免疫2周龄SPF鸡，4周后用同型禽流感病毒进行人工感染，1周后采集泄殖腔分泌物分离病毒，结果未免疫组6／6分离到病毒，裸质粒DNA免疫组1／6分离到病毒胆固醇／卵磷脂／十八胺脂质体包裹DNA免疫组1／6分离到病毒，DC-chol脂质体DNA免疫组没有分离到病毒（0／6）：人工感染后1周各组的HI抗体（Log2）分别为6.38±0.98，7.00±1.26，7.83±1.17，8.00±0.89，2周后为8.50±0.55，8.67±0.82，8.68±0.45，9.33±0.52，脂质体包裹组在同期均高于未免疫组和裸DNA免疫组，表明脂质体包裹质粒DNA免疫动物后，能增加动物对病毒感染的抵抗力和反应能力。

Important advance was made to Celastrus and ceangulin V after 20 years studies, but the target of Celangulin V was not verified and the metabolic dynamic of Celangulin V in organism was not touched because of the technique difficulty in testing and analysis of trace Celangulin V in organism. It will solve the difficulty that establishing the immunoassay of Celangulin V. The immunoassay of Celangulin V including the synthesis of artificial antigen, the preparation of antiserum, the immunoanalysis location of Celangulin V and the quantitative immunoassay of Celangulin V were studied systematicly in this paper.

苦皮藤素V是从卫矛科植物苦皮藤中分离出的一种具有杀虫活性的天然产物，可能作用于一类新的作用靶标。20多年对苦皮藤及苦皮藤素V的研究已取得了重要进展，但迄今还没有证实苦皮藤素V的作用靶标，对苦皮藤素V在生物体内的药代动力学研究也尚未涉及，这些方面的研究因为对痕量苦皮藤素V在生物体内分析、检测存在技术方法上的困难而受到限制，建立苦皮藤素V的免疫分析技术则可解决这些问题。

Important advance was made to Celastrus and ceangulin V after 20 years studies, but the target of Celangulin V was not verified and the metabolic dynamic of Celangulin V in organism was not touched because of the technique difficulty in testing and analysis of trace Celangulin V in organism. It will solve the difficulty that establishing the immunoassay of Celangulin V. The immunoassay of Celangulin V including the synthesis of artificial antigen, the preparation of antiserum, the immunoanalysis location of Celangulin V and the quantitative immunoassay of C'elangulin V were studied systematicly in this paper.

苦皮藤素Ⅴ是从卫矛科植物苦皮藤中分离出的一种具有杀虫活性的天然产物，可能作用于一类新的作用靶标。20多年对苦皮藤及苦皮藤素Ⅴ的研究已取得了重要进展，但迄今还没有证实苦皮藤素Ⅴ的作用靶标，对苦皮藤素Ⅴ在生物体内的药代动力学研究也尚未涉及，这些方面的研究因为对痕量苦皮藤素Ⅴ在生物体内分析、检测存在技术方法上的困难而受到限制，建立苦皮藤素Ⅴ的免疫分析技术则可解决这些问题。

objective effects of plant tannins,chebulinic acid and tellimagrandin i on chemically induced hemoglobin synthesis in k562 cells were investigated.methods the hemoglobin synthesis situation was assayed with benzidine staining.erythroid antigens glycophorin a expression on the surface of k562 cells was labeled by direct immunofluorescence using fluorescein isothiocyanate-conjugated anti-gpa antibodies.then flow cytometric analysis was performed to detect gpa expression levels on surface of the cells.results both chebulinic acid and tellimagrandin i could inhibit the hemoglobin synthesis of butyric acid and hemin-treated k562 cells in a concentration-dependant manner.however,the ba-induced k562 cells were more sensitive to two tannins than heroin-induced cells.conclusion chebulinic acid and tellimagrandin i have inhibitory effect on the erythroid differentiation.

目的 研究可水解单宁诃子酸和特里马素i对氯化高铁血红素和丁酸钠诱导k562细胞红系分化的影响。方法四甲基偶氮噻唑蓝法分析诃子酸和特里马素i对k562细胞生长的影响，联苯胺染色法检测血红蛋白合成情况，应用免疫荧光和流式细胞术检测血型糖蛋白a在细胞表面的表达。结果诃子酸和特里马素i在0.04～0.09？mmol／l浓度下均可显著抑制k562细胞的生长增殖。2种单宁化合物(0.002～0.01？mmol／l)可显著抑制丁酸钠诱导的k562细胞血红蛋白合成，2种单宁化合物(0.01～0.05？mmol／l)还可显著抑制氯化高铁血红素诱导的血红蛋白合成，特里马素i(0.01？mmol／l)还抑制丁酸钠诱导的gpa在细胞表面表达。结论诃子酸和特里马素i对红系分化有抑制作用。

Results:①The amount of human colon carcinoma cell line SW480 treated by quercetin decreased. The morphology of partial SW480 cells was shrunk volume, integrated cell membrane, condensed cytoplasm, pyknotic chromatin, nuclear fragmentation. Apoptotic Corpuscles were found by electron microscope.②MTT colorimetric assay showed quercetin inhibited the growth of human colon carcinoma cell line SW480 in a time- and dose-dependent manner when the concentration of quercetin was 30、60、90μmol/L.③Flow cytometry analysis showed the cell cycle of SW480 cell was restricted in G1/S. G0/G1 phase rate increased and S phase rate decreased with increasing concentration of quercetin and time lasting.④ Zymogram analysis assay showed the secretion of matrix metalloproteinases in human colon carcinoma cell line SW480 treated by quercetin decreased. With increasing concentration of quercetin, the secretion of MMP-2 and MMP-9 decreased.⑤Immunohistochemistry method demonstrated the position expression of Cathepsin-D in SW480 cell was suppressed by quercetin in a time- and dose-dependent manner.

研究结果：经槲皮素处理的人结肠癌SW480细胞数量减少，部分细胞体积缩小，细胞膜完整，胞浆浓缩，核染色质固缩，细胞核碎裂，形成凋亡小体；MTT法检测显示当作用浓度为30μmol/L~90μmol/L时，槲皮素对人结肠癌SW480细胞的生长有抑制作用，其抑制作用随着作用浓度的增加和作用时间的延长而增强；流式细胞学发现槲皮素主要作用于人结肠癌SW480细胞周期的G1/S期，大部分细胞被阻断于S期，随药物浓度的升高和作用时间的延长，G0/G1期细胞比例逐渐增加，S期细胞比例逐渐减少；酶谱分析法检测显示不同浓度的槲皮素能够抑制人结肠癌SW480细胞分泌MMP-2及MMP-9，随浓度的升高，MMP-2及MMP-9的分泌量减少；免疫组织化学法显示不同浓度的槲皮素处理人结肠癌SW480细胞后，Cathepsin-D的表达随药物浓度的升高和作用时间的延长而降低。

METHODS: Female BALB/c mice were treated with CCK-8 and keyhole limpet haemocyanin, splenocytes were acquired and incubated in vitro with KLH restimulation, the productions of Th1 cytokines, interferon-γ, interleukin-2 and Th2 cytokines, IL-4, IL-5 in cell culture supernatants were detected by enzyme-linked immunosorbnent assay. The mRNA expressions of IFN-γ, IL-2, IL-4 and IL-5 in splenocytes were detected by reverse transcription-polymerase chain reaction. The levels of Th1 antibody IgG2a and Th2 antibodies IgG1 in serum were also detected by ELISA.

给予BALB/c小鼠钥孔戚血蓝蛋白免疫同时体内给予不同剂量的CCK-8，酶联免疫吸附试验检测其脾细胞培养上清中Th1型细胞因子γ-干扰素、白细胞介素-2（IL-2）和Th2型细胞因子白细胞介素-4（IL-4）、白细胞介素-5（IL-5）水平，逆转录聚合酶链式反应法检测脾细胞中IFN-γ、IL-2、IL-4、IL-5 mRNA表达；ELISA法检测血清中Th1型抗KLH抗体IgG2a和Th2型抗KLH抗体IgG1水平。

The purposes of this study were:1to investigate the effects of supramaximal exercise on Immunoglobulin and interleukin-1 concentration in blood;2to compare the differences between the long and the short distance players in immunoglobulin and interleukin-1 concentration.

本研究的目的在探讨超最大运动对血液中免疫球蛋白与白血球间素-1浓度的影响，并比较长、短距离选手在免疫球蛋白与白血球间素-1浓度上的差异。

Positive staining of oxytocin and vasopressin were in the cytosol of the neurons and the former gave less intensity,many positive varicosities for vasopressin were also noticed in neurite.

催产素的免疫阳性产物主要在细胞核周围的胞浆即核周质内，而加压素的免疫阳性物质除了在核周质内有很强的反应外，在突起内也可见很强的免疫反应。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。