目前恶性肿瘤的治疗方法之一是放射治疗和化学药物治疗（简称放疗和化疗）但化疗药物和放射线均缺乏特异的选择性，在杀灭肿瘤细胞的同时，也破坏正常细胞，尤其是对增殖旺盛的骨髓造血干细胞破坏严重，故在恶性肿瘤患者的治疗中，由于骨髓抑制导致白细胞减少极为常见，也... Currently, one of the treatments for malignant tumors is radiation therapy and chemotherapy (abbreviated as radiotherapy and chemotherapy). However, chemotherapy drugs and radiation lack specific selectivity. While killing tumor cells, it also destroys normal cells, especially proliferation. Severe destruction of bone marrow hematopoietic stem cells, so in the treatment of malignant tumors, due to bone marrow suppression caused by leukopenia is very common, but also ...