结论：各成员来自于同一祖先的同一家族，其进化方式属于趋异性进化。
Conclusion: hppGalNAc-Ts came from common ancestor, but they had many differences and evolutioned in a divergence way.
近年来的研究发现，器官特异性表达的趋化因子及癌细胞表达的受体介导的趋化运动在肿瘤的侵袭和转移过程中发挥着重要的作用。
Recent data indicated that chemotaxis, which involves the chemokines expressed at specific organs and their receptors expressed on tumor cells, plays a crucial role in tumor invasion and spreading.
目的比较不同年龄大鼠神经趋化解剖特异性的差异。
Objective To compare the chemotactic difference at the level of topographic specificity at different age in SD rats.
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