DISEASE CHARACTERISTICS: Chronic myelogenous leukemia with previously stored CD34 cells from FHCRC-928.00 Chronic phase: No evidence of a major response after 6-month course of interferon alfa OR Initially achieved a major cytogenetic response but subsequently failed interferon alfa OR Accelerated phase: At least 1 month after collection of peripheral blood stem cells No blast crisis No CNS involvement Ineligible for or refused allogeneic conventional or minitransplant protocol