chemotaxis 中文意思是什麼
chemotaxis
解釋
n. 名詞 【生物學】趨化性，趨藥性。-
Chemotaxis ( chemotactic movement ) a txis in response to a chemical concentration gradient
趨化現象：一種對化學濃度梯度的趨化反應。 -
Chemotaxis mediated by chemokine receptors, such as cxcr4, play a key role in lymphocyte homing and hematopoiesis as well as in breast cancer metastasis. we have previously demonstrated that ? - arrestin2 functions to attenuate cxcr4 - meidated g protein activation and to enhance cxcr4 internalization. here we further show that expression of ( - arrestin2 in both hela and hek293 cells significantly enhanced the chemotactic efficacy of stromal - cell derived factor 1 ( ( sdf - 1 ( ), the specific agonist of cxcr4
- arrestin2是趨化因子受體的一種重要的調節蛋白，本研究工作發現在hek - 293或hela細胞中升高- arrestin2的表達水平會顯著增強cxcr4介導的趨化作用，反之當- arrestin2的表達被它的反義核苷酸或rnai所抑制， cxcr4介導的趨化作用則被明顯抑制。 -
A kind of new intelligent collective optimization method, bacterial colony chemotaxis ( bcc ) algorithm based on the description of bacterial colony chemotaxis, is presented
提出一種新型的智能群體優化方法?細菌群體趨藥性優化演算法。 -
Taken together, our study suggests that ( - arrestin2 can function not only as a regulator of cxcr4 signaling but also as a mediator of sdf - 1 ( - induced chemotaxis and this is probably via the ask1 / p38 mapk pathway
綜上所述， - arrestin2參與介導了cxcr4引起的趨化作用，這種作用可能是通過調節p38mapk / ask1信號通路來實現的。 -
Key experiments that validate mathematical models are also discussed, as well as molecular, cellular, and developmental systems biology, bacterial chemotaxis, genetic oscillators, control theory and genetic networks, and gradient sensing systems
同時，亦會討論能驗證數學模型的重要實驗，同時也討論分子生物學、細胞生物學、發育系統生物學、細菌趨化性、基因震蕩器、控制理論、基因網路和梯度感應系統等。 -
Abstract : the anti - inflammatory effect of n - butanol extract of xanthocerassorbifolia bunge ( bex ) was studied in this paper. the ear edema resulted from dimethyl benzene, paw edema induced by carrageenin, the increase of vascular permeability caused by acetic acid, the chemotaxis of wbc induced by cmc and the weight of cotton granuloma in mice and hind paw edema induced by fresh egg white in rats were inhibited significantly by ig bex daily for 7 days, respectively. the carrageenin - induced paw edema was also inhibited markedly in adrenal - ectomiced mice. no changes in weight of adrenal and the concentration of vitamin c were observed, indicating that the anti - inflammatory effect of bex was not related to pituitary - adrenal system
文摘:文冠木正丁醇提取物對二甲苯致小鼠耳腫脹、蛋清致大鼠足腫脹、角叉菜膠致小鼠足腫脹、醋酸致小鼠腹腔毛細血管通透性增加、小鼠羧甲基纖維素囊中白細胞遊走、小鼠棉球肉芽腫生長均有顯著的抑制作用，同樣劑量下，文冠木正丁醇提取物對角叉菜膠致去雙側腎上腺小鼠足腫脹仍有顯著的抑制作用，且對小鼠腎上腺重量及腎上腺中維生素c的含量沒有明顯影響。 -
We focused on the following aspects ; 1 ) we first assayed the expression of complement receptors and complement - associated molecules on distinct subsets of dendritic cells during their development in order to understand the physical basis of the sensitivity of dendritic cells to complement and its split products ; we next studied the effects of complement activation on the survival of dendritic cells during their development ; and finally examined the effects of the whole complement system, focusing on the ability of one of the split products of complement activation, c5a, and its first subcomponent - c1q, to influence chemotaxis of dendritic cells, as well as allo - t cell stimulatory activity of dc
我們通過免疫磁珠分離了兩種人dc前體，即髓系來源的單核細胞（ monocytes ， mo ）和淋巴系來源的漿細胞樣dc （ plasmaeytoiddendriticeells ， pdc ） ，對這兩個不同dc亞群進行體外誘導培養，使其處于不同的分化發育階段，然後檢測了其表達補體受體一cd35 （ cri ） 、 cd21 （ crz ） 、 cdilb （ cr3 ） 、 cdlle （ cr4 ） ，補體調控蛋白一cd46 、 cd55 、以及部分補體片斷分子受體一c3ar 、 csar 、 clqrp的水平。 -
While the suppression of ( - arrestin2 endogenous expression by antisense or rnai technology considerably attenuated sdf - 1 ( - induced cell migration. expression of ( - arrestin2 also augmented chemokine receptor ccr5 - mediated but not egf receptor - mediated chemotaxis, indicating the specific effect of ( - arrestin2
與此相似，另一種趨化因子受體ccr5介導的趨化作用也受- arrestin2的調控，但egf受體介導的趨化作用則不受- arrestin2的調控，說明- arrestin2的作用有一定的受體特異性。
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