查询词典 stem cells

With the development of the tumor stem cell theory, targeted therapy on stem cells has become a new theory. How to separate and purify tumor stem cells has also become an important part of the research.

随着肿瘤干细胞学说的日趋成熟，针对干细胞的靶向治疗已成为新的理论，分离与纯化肿瘤干细胞是研究的重要组成部分。

The team, who presented their results at a joint meeting of the American Association for Cancer Research and the International Association for the Study of Lung Cancer in Coronado, California, this week, are now investigating whether their putative cancer stem cells are more resistant than run-of-the-mill cancer cells to chemotherapy or radiation, as research on other putative stem cells has suggested.

本周，在加利福尼亚州科罗纳多举行的美国癌症研究学会和国际肺癌研究学会联合会议上，该小组公布了他们的研究结果。他们现在正在研究假定的肿瘤干细胞是否像其他假定干细胞上的研究显示的一样，比普通癌细胞更耐化疗及放疗。

There are two disputing theories about the origin of cancer, that is, cancer arises from dedifferentiation of somatic cells or maturation of stem cells. Recent discoveries demonstrate that cancer cell proliferation is driven by cancer stem cells.

肿瘤的起源，即肿瘤的去分化起源和肿瘤的干细胞起源一直是有争议的，而随着干细胞研究的深入，越来越多的实验结果证实肿瘤起源于干细胞的观点。

Part three: An experiment study on the repair of peripheral nerve injury by NT-3 gene modified neural stem cells objective To investigate the effective treatment of peripheral nerve injury with NT-3 gene modified neural stem cells, to explore the feasibility of the treatment by means of gene transfection Methods 54 SD rats were divided evenly into 3 groups. The sciatic nerve transected model were made and sutured end to end with epineurium. The neural stem cell without NT-3 gene or with NT-3 gene modified were injected into triceps muscle one time a week, saline injected as control group. The nerve trunks of stomas and triceps muscle were acted as specimen three weeks、six weeks and nine weeks after operation.

最后，为了探讨神经营养素-3基因修饰的神经干细胞对周围神经再生修复的影响，从转基因角度探讨治疗周围神经损伤的有效方法，我们选用54只SD大鼠随机分为3组，造成坐骨神经切断损伤模型，神经外膜端端对位缝合后，于小腿三头肌每周分别注射生理盐水、未被神经营养素-3基因修饰的神经干细胞、及神经营养素-3基因修饰的神经干细胞。

Bone marrow mesenchymal stem cells, derived from bone marrow, is a kind of multipotent stem cells, which have potential to differentiate into many lineages of cells.

骨髓间充质干细胞是来源于骨髓中的一种多能干细胞，具有多方向分化潜能，在临床上具有巨大的潜在应用价值。

Hematopoietic stem cells, also known as multipotent stem cells, is present in the blood of the Organization of the original group of hematopoietic cells.

造血干细胞又称多能干细胞，是存在于造血组织中的一群原始造血细胞。

Methods Serum containing achyranthes root was prepared, human mesenchymal stem cells were separated and amplified, MTT assay was used to access the effects of serum containing achyranthes root on human mesenchymal stem cells in vitro, alkaline phosphatase and osteocalcin were assayed to reflect the variations of stem cell differentiation, and the expression of osteogenic transcription factors with RT-PCR.

制备牛膝含药血清，分离与扩增人间充质干细胞，MTT法检测牛膝含药血清对体外培养的间充质干细胞增殖作用的影响，检测碱性磷酸酶与骨钙素以反映细胞分化水平的改变，RT-PCR检测成骨相关转录因子的表达。

To sum up, we first put forward and proved the hypothesis that postembryonic pluripotent stem cells distribute in multiple human tissues, which may help explain the "stem cell plasticity", and that osteoblastic cells were a regulatory component of the hematopoietic stem cell niche by in vitro experiment.

在本论文的第四部分，我们借助体外造血发生模型，首次从另一个角度在体外证明了Scaden及Li等人的实验结果，并证明在造血&龛位&空间组成中，SCF和BMP-4是造血发生的重要调节因子。

The methods were: First, use of conventional chemotherapy and acquired lesions were reduced, the mobilization of peripheral blood stem cells in blood cell sorter to take peripheral blood stem cells, and then high-dose chemotherapy CVpP program, 24-48 hours after chemotherapy, stem-cell reinfusion.

其方法是：首先采用常规化疗后取得病灶缩小者，动员外周血干细胞后用血细胞分离仪采取外周血干细胞后，再用高剂量化疗CVpP方案，化疗后24-48小时干细胞回输。

"The president is, in effect, allowing federal funding of human embryonic stem cell research to the extent that it's permitted by law -- that is, work with stem cells themselves, not the derivation of stem cells," he said.

他还说，总统允许联邦政府资金用于法律许可范围内的胚胎干细胞研究--这就是说研究干细胞本身，而不是干细胞的来源。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失