ABSTRACT
Purpose:To evaluate the effect of Auto-PBSCT combined with long-time low-dose interleukin-2 (after transplant) for increasing the rate of 5-year disease-free survival of lymphoid malignancies (ALL and NHL).Methods:U- sing chemotherapy combined with low dose G-CSF to mobilize peripheral blood stem cells,we carried out auto-PBSCT in lymphoid malignancies (7 cases CR_1 ALL、1 case CR_2 ALL、3 cases CR_1 NHL、5 cases refractory NHL).After transplant, 15 cases used low dose interleukin-2 at 5.10~5U/d for one year or longer.Results:7 cases CR_1 ALL are still alive,the aver- age disease-free survival is 73 months.Median disease-free survival is 51.5 months.2 of 3 cases CR_1 NHL are still alive. The 6 years disease-free survival in 10 cases CR_1 lymphoid malignancies(CR_1 NHL and CR_1 ALL) is 0.90?0.11,the aver- age disease-free survival is 66.8 months.In another PR (refractory) group of NHL and ALL (CR_2),3 years disease-free survival was 0.33?0.18,and average survival time was 20.66 months,but a chemotherapy-sensitive NHL is still alive (63 months),a case of lymphoblast cell NHL also survived for 46 months and died after relapse.Conclusions:Auto-PBSCT combined with long-turm low dose IL-2(after transplant) could effectively increase the rate of 5-year disease-free survival in CR_1 lymphoid malignancies(ALL and NHL).