细胞的

It is well-known that for eucaryotic cells, DNA is located in the karyon and can not penetrate to the cytochylema and the tissue fluid because the cell membrane can act as barriers for DNA transportation. Therefore, the appearance of DNA in cell matrix and the serum can indicate that some diseases have taken place. A main reason for cancer occurrence is the mutation of DNA. It may cause the change of the sequence and expression of cancer suppressor genes.

真核细胞的DNA广泛的存在于细胞核内的染色体上，由于核膜的选择性通透作用，使DNA无法分散到其它细胞的亚器官，加之细胞膜的隔离效果，DNA更难扩散到细胞外基质中，因此细胞外基质中DNA含量的增加往往也会预示某些疾病的发生。

The cytolytic effect of perforin is a mechanism of anti-virus, killing microbial-infected cells and tumor cells.

穿孔素的溶细胞作用是机体杀伤病毒和其他微生物感染细胞以及肿瘤细胞的一种效应机制。

CIK cells were highly efficient cytolytic effector cells which were non-MHC restricted.

CIK细胞是一种强于LAK细胞的、新型、高效、具有广谱杀瘤活力的免疫活性细胞。

Results The positive signal of HLA-G expression were showed in all placentas of nomal pregnant women within villus and cytoplasma of syncytiotrophoblast and cytotrophoblast.

结果 正常妊娠早期、晚期孕妇胎盘母胎界面均有？HLA-G mRNA的阳性表达，阳性表达位于绒毛内外细胞滋养细胞，以及合体滋养细胞的胞浆内。

For a start, via modified Boyden chamber invasion assay, we found that twenty-six Chinese medicinal herbs can suppress A549 cell invasion. In this twenty-six Chinese medicinal herbs there are six Chinese medicinal herbs without toxicity, including Davallia mariesii Moore, Phyllanthus urinaria, Prunella vulgaris, Selaginella tamariscina, Viola yedoensis and Terminalia catappa. Based on that tumor metastasis are accompanied with proteolytic degradation of the extracellular matrix and changed cell motility.

首先藉由modified Boyden chamber invasion assay，发现有26种中药具有抑制A549侵入的能力，其中有骨碎补、叶下珠、夏枯草、卷柏、紫花地丁、榄仁树的叶等6种中药不具有细胞毒性，而当癌细胞转移时常常会伴随著细胞外基质的分解及细胞移动能力的改变，在gelatin zymography与casein zymography assay中也发现到它们可以抑制A549人类肺癌细胞的MMP-2及u-PA的表现。

DNA damage did not increase levels of the amiloride-sensitive sodium-hydrogen exchanger isoform 1 (NHE-1), intracellular pH, Bcl-x deamidation, and apoptosis.

DNA损伤并不增加细胞的阿米洛利敏感的钠-氢交换蛋白-1 (NHE-1)、细胞内pH值、Bcl -×脱酰胺作用及细胞凋亡水平。

The place and time of cell proliferation are just in accordance with those of the appearances of stem cells and stem-cell blastemas, which means that cells in those areas mentioned above dedifferentiate forming stem cells which proliferate too.

这些分裂细胞在位置和时间上与干细胞及干细胞原基的出现一一对应，表明上述几处发生了细胞的脱分化，形成了干细胞，进行着细胞增殖。

Cytokeratin, vimentin, alkaline phosphatase,α-actin,Ⅷ Ag, fibronectin and desmine were determined using the third generation cells. The ultrastructure were examinated by the transmitted and scanning electronic microscope.

取第三代细胞检测细胞角蛋白、波形蛋白、碱性磷酸酶、结蛋白、Ⅷ因子、α-肌动蛋白的表达，应用扫描电镜和透射电镜观察细胞的超微结构。

AIM: To investigate the change of cell cycle checkpoint kinases Chk1/2 in human gastric cancer MGC803 cells induced by diallyl disulfide. METHODS: mRNA expression was assayed by means of RT-PCR in MGC803 cells treated with DADS.

目的：观察二烯丙基二硫化物对人胃癌MGC803细胞的细胞周期检查点激酶1(Chk1)和细胞周期检查点激酶2(Chk2)的影响。

The feature was different between dysplastic small hepatocytes with crowd and proliferative nodules of hepatocytes.

小肝细胞和胆管上皮细胞的不典型增生是肝细胞癌和胆管癌的癌前病变。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。