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以目前的技术,人类还不能发明出有效并且安全无毒的药物,用来预防和治疗癌症。通用的化疗药物都有毒性,它们被用来杀死癌细胞,但同时也不同程度地杀死了人体内的健康组织。目标疗法,例如利用血管抑制剂对某一具体受体进行血管抑制或者有效生成基因,为控制癌症带来了极大的希望。血管生成是新血液管道生长的过程。成人的血管生长都是由疾病造成的,排除如月经和怀孕等少数的生理情况,肿瘤不可能长到0．08英寸这么大,除非是第一次形成时导致了新的血管扩张生成。因此,抑制血管生成就可以阻止癌细胞扩展,
With the current technology, humans can not yet invent effective and safe non-toxic drugs used to prevent and treat cancer. Common chemotherapy drugs are toxic, they are used to kill cancer cells, but also to varying degrees, kill the body’s healthy tissue. Targeted therapies, such as the use of angio-inhibitors to vasoconstrict or efficiently produce a particular receptor, offer great promise for cancer control. Angiogenesis is the process by which new blood vessels grow. In adults, the growth of the blood vessels is caused by the disease. Excluding the few physiological conditions such as menstruation and pregnancy, the tumor can not grow as large as 0.08 in. Unless it is the first formation that leads to new vasodilation. Therefore, inhibition of angiogenesis can prevent cancer cell expansion,