现有抗癌药物绝大多数对人体都有较大毒性,抗癌药物在杀伤或抑制癌细胞的同时,对正常组织器官有损害或毒性作用,尤其是对骨髓造血细胞和胃肠道黏膜上皮细胞的毒性作用,成为限制化疗药物用量、阻碍疗效发挥的主要障碍。它们在杀伤肿瘤细胞的同时,又杀伤正常组织的细胞,尤其是杀伤人体中生长发育旺盛的血液、淋巴组织细胞等。 The vast majority of existing anti-cancer drugs are highly toxic to the human body. Anti-cancer drugs, while killing or inhibiting cancer cells, have damage or toxic effects on normal tissues and organs, especially for bone marrow hematopoietic cells and gastrointestinal mucosal epithelium. The toxic effects of cells have become major obstacles to limiting the use of chemotherapeutic drugs and impeding the therapeutic efficacy. While killing tumor cells, they also kill cells of normal tissues, in particular, killing the blood and lymphatic tissue cells that thrive in the human body.