Abstract
Three patients with multiple myeloma were treated with 3.3∼10×105 u/day intravenous or subcutaneous IL 2 alone. Both their Leu7 and CD 16 positive cells in the peripheral blood and NK and LAK cell activity elevated but no M protein decreased. LAK cells and IL-2 administered to three patients intravenously. Lymphocyte counts in the peripheral blood elevated remarkably in one patient and CD3, 8, 16, 2, 38, Leu7 positive cells and NK cell activity increased in three patients. Though the reduction of M proteins were observed in three patients (17%, 75.8% and 40%, respectively), they returned to pretreatment level in 35 days, 55 days and 200 days after the therapy.
Significance of the therapy against multiple myeloma was discussed.
