细胞

Results demonstrated that the level of ROS was greater in embryo than in aleurone layer, and only very little ROS could be detected in starch. Furthermore, the ROS produced in embryo were mainly localized inside cells but not on cell membrane. By contrast, ROS from aleurone layer were accumulated on cell membrane.

结果表明：胚细胞产生的活性氧最多，糊粉层细胞次之，淀粉细胞几乎不产生活性氧；而且胚细胞产生的活性氧主要定位在细胞内，细胞膜上不产生；糊粉层细胞产生的活性氧主要定位在细胞膜。

Methods: Density gradient centrifugalization and absorption technique wererespectively applied to detach peripheral blood mononuclear cells andperipheral blood lymphocytes,T lymphocytes were got by Nylon postabsorption method, and CD4+T and CD8+T lymphocytes divided with anti- CD4 andanti-CD8 antibody by alexin cytotoxic method.

密度梯度离心法分离外周血单个核细胞，玻璃器皿吸附法分离外周血淋巴细胞，尼龙棉柱法分离 T 淋巴细胞，补体介导的细胞毒法分别制备 CD4+T和 CD8+T 淋巴细胞，采用 T 淋巴细胞与角质形成细胞共培养技术研究银屑病患者外周血 T 细胞对角质形成细胞的影响，免疫组化法检测共培养角质形成细胞 Ki67、c-Myc 及 Bcl-xL 蛋白的表达。

The large cells may be ganglion cells and the small cells may be amacrine cells, interplexiform cells or bipolar cells.

大NOS阳性细胞可能为节细胞，小NOS阳性细胞可能为无长突细胞、网间细胞或双极细胞。

We got the result: Bufo Raddei Strauch Tadpole (1) Bufo Raddei Strauch Tadpole was capable of lens regeneration, which originated from the epithelial cells at iris dorsal margin by dipigmentation.(2) Dipigmentation of Bufo Raddei Strauch by two methods: one was licked up by amoebocyte, the other one was flowed from the pigment cells.(3) In the lens regeneration cells of Bufo Raddei Strauch profiles of the mitochondria became complicated ribosome manifold, and the endoplasmic reticulum was cisternal dilation. During the process of deferentiation of lens fiber the cell nucleolus became little and chromatin shrinked.(4)The crystalline electrophoresis of Bufo Raddei Strauch Tadpole lens regeneration showed that during lens regeneration P-crystalline was expressed earliest then was γ-crystalline and α-crystallin, this result is consistent with newt.

结果表明：花背蟾蜍蝌蚪(1)具有晶状体再生的能力，其晶状体的再生来源于虹膜背缘的上皮细胞；(2)虹膜背缘去色素是转分化的前提，主要有两种方式：一种也是最主要的方式是在晶状体被摘除后虹膜外侧产生巨噬细胞，巨噬细胞吞噬虹膜色素上皮细胞中的色素颗粒；另一种方式是虹膜色素上皮细胞自身释放色素颗粒；(3)电镜观察发现虹膜色素上皮细胞转分化过程中线粒体有明显变化，核糖体增多，粗面内质网增多，晶状体纤维分化过程中细胞核逐渐凝聚；(4)SDS-PAGE电泳发现，花背蟾蜍蝌蚪晶状体再生中相关蛋白表达顺序与有尾类蝾螈相似，蛋白表达顺序依次是β-晶状体蛋白、γ-晶状体蛋白和α-晶状体蛋白，并且后两种蛋白几乎同时表达。

The mechanisms of apoptosis of skin squamous cell carcinoma induced by IFN-γand ATRA Introduction and objective Skin squamous cell carcinoma is a malignant neoplasm derived from epidermal keratinocyte and squamous cells of skin appendant organ .It is one of the most common skin carcinoma, and the incidence rate of SCC is 20% in malignant non-melanoma. It is a common disease that seriously harms health of people in our country, so we should pay more attention to it.

维甲酸、γ-干扰素诱导皮肤鳞状细胞癌SCL-1细胞凋亡的机制研究前言与目的皮肤鳞状细胞癌(squamous cell carcinoma，SCC，简称鳞癌)是起源于表皮角质形成细胞或附属器鳞状上皮细胞的一种恶性肿瘤，是常见的皮肤恶性肿瘤之一，其发病率约占全部非黑素细胞癌的20％。

The mechanisms of apoptosis of skin squamous cell carcinoma induced by IFN-γand ATRA Introduction and objective Skin squamous cell carcinoma is a malignant neoplasm derived from epidermal keratinocyte and squamous cells of skin appendant organ .

维甲酸、γ-干扰素诱导皮肤鳞状细胞癌 SCL-1细胞凋亡的机制研究前言与目的皮肤鳞状细胞癌(squamous cell carcinoma，SCC，简称鳞癌)是起源于表皮角质形成细胞或附属器鳞状上皮细胞的一种恶性肿瘤，是常见的皮肤恶性肿瘤之一，其发病率约占全部非黑素细胞癌的20％。

Results Primary RPCs extracted from the neural retina demonstrate certain biological characteristics: the cell population could form neurospheres and younger adherent cells expanded in clusters.

结果 从兔胚胎视网膜神经部分离出的原代视网膜前体细胞具有明显的生物学特性：所培养细胞可形成悬浮生长的细胞团，刚贴壁的细胞成簇状生长，这些细胞用免疫细胞化学染色神经上皮干细胞蛋白表达呈阳性。

Sanchez ET ,Botella LM ,Velasco B ,et al. Synergistic cooperation between hypoxia and transforming growth factor2beta pathways on humanvascular endothelial growth factor gene expression. J Biol Chem ,2001,19,276:38527238535.[3] Blancher C,Moore JW,Talks kl,et al.Relationship of hyposia-inducible factor HIF-1alpha expression to vascular endothelial growth factor I nduction and hypoxia survival in human breast cancer cell lines.

肝细胞癌中缺氧诱导因子-1α、热休克蛋白70的表达】；综上所述，肝细胞癌发生后，由于血供不足诱导HIF-1α过度表达，应激状态下产生的HSP70通过减轻缺血性损伤，增加毛细血管的生成及减轻细胞凋亡等途径使肿瘤细胞的增殖、移行加快，促进恶性肿瘤的生长、浸润和转移，使肿瘤细胞在适应缺氧、能量代谢、细胞凋亡及转移中起重要作用。

Methods HPDLFs were primary cultured from tissue explants, and the cells of the 5th to 8th passages were used after immunohistochemical identification of keratin and vimentin expressions. The cells were divided into 5 groups and treated with TP at 1, 0.5, 0.25, 0.125, and 0.0625 mg/ml, respectively, with another group without TP treatment as the blank control group. Cell counting and MTT colorimetric assay were performed to assess the cell proliferation, and flow cytometry was employed to determine the DNA content of the HPDLFs.

采用组织块培养法培养原代人牙周膜成纤维细胞并传代，经免疫组化SABC法检测角蛋白和波形丝蛋白鉴定，取5~8代细胞用于实验；按茶多酚不同浓度分1mg/ml、0.5mg/ml、0.25mg/ml、0.125mg/ml、0.0625mg/ml组和空白对照组，采用细胞计数法、MTT法检测细胞增殖情况，流式细胞术检测细胞DNA含量。

The invention discloses a connecting city white duck blastodisk fiber cell system with connecting city white duck embryo as material with preservation number at CGMCC No.1877 in cellular biology domain, which is characterized by the following: the fiber cell does not possess epithelial cell with high purity; the quality of freezing cell is stable; the active ratio can reach between 93.5% and 96.8%; the passage growth is stable and fit for big scale culture.

本发明利用连城白鸭胚胎作为材料，进行初代培养、传代培养及细胞冻存等研究。最终获得高活率、高纯度的连城白鸭胚成纤维细胞系，其保藏编号为CGMCC No.1877属于细胞生物学领域。本发明培养的成纤维细胞无上皮细胞等，细胞纯度高；冻存后细胞质量稳定，活率可达到并维持在93.5％～96.8％之间，传代生长稳定，适合大规模培养。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐