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Methods RGD peptide were through direct covalent linkage attached on micro-channel surface with 1-ethyl-3- 3-dimethylaminopropyl carbodiimide hydrochloride and N-hydroxysuccinimide to A549 cells.

方法采用化学共价连接的方法固定RGD多肽,建立由流体控制系统、免疫反应系统构成的细胞识别芯片系统,用于细胞的筛选/捕获;选用不同密度的细胞进行进样试验,考察不同细胞密度对通道内细胞数量的影响,并讨论不同的孵育时间对细胞捕获的影响。

Methods RGD peptide were through direct covalent linkage attached on micro-channel surface with 1-ethyl-3- 1 3-dimethylaminopropyl carbodiimide hydrochloride and N- hydroxysuccinimide to A549 cells.

采用化学共价连接的方法固定RGD多肽,建立南流体控制系统、免疫反应系统构成的细胞识别芯片系统,用于细胞的筛选/捕获;选用不同密度的细胞进行进样试验,考察不同细胞密度对通道内细胞数量的影响,并讨论不同的孵育时间对细胞捕获的影响。

However, it is not known how orthodontic force influences the function of cementoblast and what is the relationship between the function change of cementoblast with root resorption. So we studied the effect of mechanical stimuli on root resoption by examining the expression OPG and RANKL and exploring the related signal transduction pathway in cementoblast. Methods: Cementoblasts OCCM30 were cultured in DMEM with 10% FBS for 48 hours and starved in DMEM with no FBS for 24 hours, then subjected to mechanical strain by four-point bending system with tension and compression stress at 2000μstrain at 0.5Hz frequency. The flow cytometry was used to examine the cell cycle and proliferation activity after 3h, 6h, 12h, 24h loading respectively. OPG and RANKL mRNA were analysed with real time quantitive RT-PCR after the same loading period as FCM.

本课题利用四点弯曲力学加载系统,采用流式细胞术、实时荧光定量PCR、Western免疫印迹等方法,研究体外培养的成牙骨质细胞株OCCM-30在不同力学环境中增殖活性的变化,以及其表达骨保护素和破骨细胞分化因子的mRNA的变化,探讨应力刺激对成牙骨质细胞表达破骨细胞分化调控蛋白的影响,并通过对应力刺激下成牙骨质细胞分裂原活化蛋白激酶家族中的ERK1/2、P38MAPK活性的变化及其与OPG、RANKL基因表达变化关系的研究,对力学刺激调节破骨细胞分化调控蛋白的相关上游信号转导通路进行初步探讨。

Results The IC50 of SPG-Rg3 was (155.7±0.71) mg·L-1,when the concentration of SPG-Rg3 was arranged from 37.5 to 600.0 mg·L-1,the growth inhibitory rate of MCF-7 cells was higher following the increase of its concentration,the cell growth was greatly inhibited compared with control group(P.05); cell cycle was changed,the cell number of S period increased compared with control group(P.01),the cell number of G2/M period decreased compared with control group(P.01),in experiment group there was an apoptotic apex before G1 apex,and the number of apoptotic cells increased; most of cell nuleus in SPG-Rg3 (150 mg·L-1)experiment group appeared yellow or chrysoidine fluorescence,contracted,beaded and crescent; the result of immunocellularchemical staining of caspase-8 indicated that caspase-8 protein had no expression in control group,but stronger expression in SPG-Rg3 group.

结果:SPG-Rg3 IC50为(155.70±0.71) mg·L-1,当SPG-Rg3浓度在37.5~600.0mg·L-1时,MCF-7细胞的生长抑制率随SPG-Rg3浓度的增加而增大,与对照组比较,细胞增殖受到明显抑制(P.05);MCF-7细胞的生长周期也发生变化,S期细胞数增加,明显高于对照组(P.01,G2/M期细胞数则明显少于对照组(P.01;并且在G1峰前出现明显的凋亡峰,凋亡细胞数增加。

Xenopus laevis Tadpole (1) Xenopus laevis Tadpole was capable of lens regeneration, which originated from the outer cornea.(2)The days of lens regeneration of Xenopus laevis Tadpole was earlier than Bufo Raddei Strauch Tadpole, The rate of regeneration of Xenopus laevis Tadpole was higher than Bufo Raddei Strauch Tadpole.(3)During Xenopus laevis lens regeneration the outer cornea cells proliferated, in the elongating cells the mitochondria became complicated and in the columnar cells the cisternal dilating of endoplasmic reticulum was ubiquity.

非洲爪蟾蝌蚪(1)再生晶状体来源于外角膜;(2)晶状体再生较花背蟾蜍蝌蚪晶状体再生时期早,再生率高;(3)电镜观察发现再生前期外角膜增殖,观察到晶状体上皮细胞和伸长细胞(进一步发育为晶状体纤维细胞),伸长细胞中线粒体形状各异随着进一步的分化,细胞器逐渐消失;分化过程中晶状体上皮细胞粗面内质网增多,并且内质网扩张普遍存在。

Methods Chondrocytes were obtained from the costicartilage of rat and were cultured on the porous HA blocks, 3 mm×3 mm×4 mm size, for three and seven days. Scanning electron micrograph was taken to show whether the cells grew outside and inside the pore of HA block. The cells cultured on tiny glass sheet for 2 days were used to prove where the cells come from by in situ hybridization technique with α1cDNA probe.

采取成年雄性SD大鼠肋软骨细胞,以3 mm×3 mm×4 mm大小的块状多孔HA为载体培养软骨细胞;培养3天和7天后通过扫描电镜观察HA表面和中矢横断面孔隙中有无细胞生长,同时将培养2天的细胞爬片以α1cDNA片段为探针进行原位杂交,求证培养的细胞是否软骨细胞

In order to investigate the role of ICAM-1 and VCAM-1 in the pathogenesis of glomerulonephritis, ICAM-1 and VCAM-1 expression were evaluated from both protein and gene level by in vivo and in vitro study, We have conducted (1) immunocytochemical analysis and in situ hybridization to examine the alteration in expression of ICAM-1 and it's relationship with interstitial infiltrating cells and TNFα; A total of 64 renal biopsies were classified in three groups according to the degree of cellular proliferation and infiltration in glomerulus;(2) indirect immunofluoresence and immunoblotting. methods to detect the VCAM-1 level both in renal tissue and in serum from the patients of lupus nephritis (17cases) and crescentic nephritis (4 cases);(3) Cell ELISA and northern blot technique to study the effects of TNFα and IL-1β on ICAM-1 and VCAM-1 surface expression and gene expression by cultured human mesangial cells .

为了探讨ICAM-1和VCAM-1在肾小球疾病中的作用,本文从蛋白质和基因两个水平,整体(研究ICAM-1时根据肾小球内细胞增生和浸润程度,将64例病人分为A.B.C三组)和细胞培养两个方面,做了如下工作,(1)利用免疫细胞化学和原位杂交技术观察了ICAM-1在64例肾小球疾病患者中的表达及其与间质浸润细胞、TNFα之间的关系;(2)利用间接免疫荧光和膜免疫印迹方法检测了VCAM-1在17例狼疮肾炎和4例新月体肾炎病人肾组织及血清中的表达;(3)利用细胞ELISA和Northern杂交技术研究了IL-1β或TNFα对体外培养的人肾小球系膜细胞ICAM-1和/或VCAM-1表面表达及mRNA表达的调节作用。

And Fig. 58 126,128. The lining cells include nonciliated mucous columnar cells, goblet cells, absorptive-type cells, cuboidal cells, and Paneth cells.

衬覆细胞包括:无纤毛的粘液柱状细胞、杯状细胞、吸收细胞、立方细胞和罕见的潘氏细胞

Results: IL-8 protein was located in the epithelium of viii. The expression of IL-8 was significantly increased in RSA group than that in the control group. Positive IL-8 cells was shown in decidua of RSA group, and its IL-8 level was higher than that in the control group. By hematoxylin-eosin staining. trophoblastic layer was found to get thinner, cells of trophoblastic layer denatured or necrotized, and turned acidophily, and the fibration of villous axis increased in RSA; decidual cells lost connection, a part of decidual cells appeared cytoclasis and turned more acidophilic, and nuclei disappeared in RSA.

结果:在绒毛组织中,IL-8蛋白定位于绒毛上皮细胞细胞质内,且病例组的表达明显高于对照组;在蜕膜组织中;病例组蜕膜细胞的胞质内可见IL-8蛋白表达,且高于对照组;H-E染色可见病例组绒毛组织的滋养层变薄,细胞变性甚至坏死、嗜酸性增强,绒毛中轴纤维化程度增强;蜕膜组织中蜕膜细胞失去细胞间连接,部分蜕膜细胞解体、核消失。

In T cells,TGF-beta1 can inhibit their proliferation,inhibit the differentiation of Th1 and Th2,inhibit the differentiation of CTL,induce the generation of regulatory T cellsTregin B cells,TGF-beta1 can inhibit their proliferation,induce IgA class switch,it also can induce the apoptosis of immature and resting B cells;in NK cells,TGF-beta1 can inhibit the secretion of IFN-γand the cytolytic function of NK cells.

对T细胞,TGF-beta1可以抑制其增殖,抑制Th1和Th2细胞的分化,抑制CTL的分化,诱导调节性T细胞的产生;对B细胞,TGF-beta1可以抑制B细胞的增殖,诱导IgA的类别转换,还可以诱导不成熟和静息B细胞的凋亡。

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Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

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