查询词典 stem cells

BACKGROUND: The precartilaginous stem cells are limited regarding in vitro proliferative capacity, but the immortalized cell lines can provide a large number of stable immortalized cells, and simian virus 40 large T antigen gene (SV40Tag) is one of gene fragments which are commonly used and effective in vitro immortalized cells.

摘要背景：前软骨干细胞体外培养增殖能力有限，但永生化细胞株可以提供大量性状稳定的永生化细胞，并且猿肾病毒40大T抗原基因(simian virus 40 large tumor antigen，SV40Tag)是较为常用且有效的体外永生化细胞的基因片段之一。

These findings have suggested the development stages at which to transplant cells--for instance, photoreceptor cells need to be relatively more mature than stem cells, according to Thomas Reh, who studies retinal development at the University of Washington.

在华盛顿大学从事视网膜发育研究的Thomas Reh表示，这些发现提示，进行细胞移植--比如感光细胞的移植时，被移植细胞的发育阶段应比干细胞要相对成熟一些。

Cancer stemlike cell subpopulation exists in prostatic carcinoma PC3 cell line, the character of some cells excluding Rhodamin123 dye can be used to discriminate tumor stem cells and other tumor cells.

人前列腺癌PC3细胞系中存在具有干细胞特性的细胞亚群，对Rho123拒染的特性可用于区分肿瘤干细胞与其他肿瘤细胞。

On basis of mention , we investigate the ability of isolation, purification and expansion of adult rat mesenchymal stem cells to nerve cells in vitro.MethodsBone marrow mononuclear cells from adult rat femur and tibia were obtained sterilely by Percoll ( 1. 073 103 g/L ) gradient centrifugation .

根据MSCs与其它细胞的密度不同而采用Percoll(1.073×10~3g／L)分离液将其分离，此方法分离MSCs所获得的细胞种类较单一，Percoll分离液将骨髓细胞分为三层，取含MSCs的低密度层进行培养。

By investigating the regeneration feasibility of mesenchymal stem cells,which is derived from endothelial and subendothelial cells of human umbilical vein,to neuron-like cells in vitro,we want to provide new evidence for the transplantation of hUV-derived MSCs to nervous tissue.

探讨来源于人脐静脉内皮及内皮下分离的间充质干细胞向神经元样细胞分化的可能性，以期为脐静脉MSCs的神经移植提供理论依据。

METHODS: Rat mesenchymal stem cells at passage 3 were obtained under sterile condition, and divided into groups A-F. In group A, iodine ion was not added. In groups B-F, iodine ion at mass concentrations of 2, 55, 90, 125 and 2 500 mg/L was added respectively. An additional blank control group was established, and simultaneously the cells were induced into neuron-like cells with dimethyl sulphoxide.

无菌条件下取大鼠第3代间充质干细胞，分为A~F组：A组不加碘离子，B~F组中分别加入质量浓度为2，55，90，125和2 500 mg/L的碘离子，另设空白对照组，同时加化学诱导剂二甲基亚砜向神经元方向诱导分化。

And the results showed cultivated cells proliferated into sphere of neural stem cells and it was nestin positive cells.

结果培养的神经干细胞增殖成神经干细胞球并传代，鉴定为nestin染色阳性细胞。

BACKGROUND: Basic fibroblast growth factor can accelerate the bone marrow mesenchymal stem cells proliferation and differentiation into nerve cells, which is considered as a mitogen of glial cells.

背景：碱性成纤维细胞生长因子可以促进骨髓间充质干细胞的增殖和向神经细胞方向分化，并被认为是胶质细胞的分裂原。

BACKGROUND: Research on seed cells is the most important aspect in the filed of tissue-engineering research, and because of their various ad vantages, bone marrow mesenchymal stem cells have been taken as the ideal bone tissue-engineering seed cells.

背景：种子细胞的研究是组织工程众多研究领域中最重要的基础环节，骨髓基质干细胞以其诸多优点，成为理想的骨组织工程的种子细胞。

Methods: rabbit bone marrow mesenchymal stem cells were purified, and then cultured in inducing medium containing transforming growth factor-β1; mtt assay was employed to evaluate the proliferative activity of induced cells; immunohistochemical assay was used to detect the expression of type ⅱ collagen; induced cells were transplanted into the knee of rabbit, and x-ray photography was employed to observe the repair and formation of cartilage.

纯化兔骨髓间充质干细胞；用含转化生长因子β1的诱导液培养骨髓间充质干细胞；以mtt测定诱导细胞的增殖活性；免疫组化检测ⅱ型胶原蛋白的表达；诱导后的细胞移植于白兔膝关节内，x线摄片观察软骨修复形成情况。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。