标题：PERSISTENCE OF PH+/CD34+ CELLS IN CHRONIC MYELOID LEUKEMIA PATIENTS IN PROLONGED COMPLETE CYTOGENETIC REMISSION FOLLOWING IMATINIB MESYLATE TREATMENT
摘要：Chronic myelogenous leukemia (CML) is characterized by a clonal expansion of a hematopoietic stem cell possessing a reciprocal translocation between chromosomes 9 and 22, the Philadelphia chromosome, as identified cytogenetically or molecularly (RT-PCR). CML accounts for 15% of adult leukemias. The disease progresses from a chronic phase through an accelerated phase to a blast phase. In the past, the National Comprehensive Cancer Network had suggested that there were three primary treatments available for CML which included: allogeneic bone marrow transplantation (BMT), IFN-α with or without cytarabine, and imatinib mesylate (Glivec®). It has been shown that Glivec is superior to the combination of interferon plus cytarabine. Although BMT can be a curative treatment for CML it is not usually used as a front-line therapy, due to limited donor availability and high toxicity of the procedure. Five-year survival rates following HLA-matched transplants are approximately 75% for patients in chronic phase.
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