预后良好的患者可幸免进行带有严重副作用的侵入性治疗,但不对侵入性肿瘤进行侵入治疗或可导致死亡。癌症之所以致命,在很大程度上是由于其发生了转移,从一个器官或组织转移到另一个器官或组织。癌症致死绝大多数与转移有关。对于乳腺癌来说,被称为“上皮间质转化”的过程助推了这种转移。上皮细胞系附着在与环境接触的皮肤和胃肠道中。间质细胞是胚胎组织和结缔组织中的一种细胞类型,其在那里形成非常松散的联系。肿瘤细 Patients with good prognosis can be spared aggressive treatment with serious side effects, but not invasive treatment of invasive tumors or can lead to death. The cancer is fatal, in large part because of its metastasis, its transfer from one organ or tissue to another organ or tissue. The vast majority of cancer death and metastasis. For breast cancer, a process called “” epithelial mesenchymal transition "helps to promote this shift. Epithelial cell lines attach to the environment in contact with the skin and gastrointestinal tract. Stromal cells are a type of cell in embryonic tissue and connective tissue where they form a very loose connection. Tumor fine