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虽然大肠癌的治疗已取得了很大进步和可喜的成果，然而癌的侵袭转移仍然是引起癌症病人死亡的重要原因。因此，对大肠癌的转移特征性研究成为目前研究的热点之一。大肠癌的转移是一个复杂的多步骤过程，涉及许多宿主—肿瘤细胞间的相互作用和诸多因素，ＣＤ４４就是其中一个非
Although the treatment of colorectal cancer has made great progress and gratifying results, the invasion and metastasis of cancer is still an important cause of death of cancer patients. Therefore, the study of the characteristics of metastasis of colorectal cancer has become one of the current research hotspots. The metastasis of colorectal cancer is a complex multi-step process involving many host-tumor cell interactions and many factors. CD44 is one of them.