STI571 as a targeted therapy for CML Article Report uri icon


MeSH Major

  • Myeloproliferative Disorders


  • Chronic myelogenous leukemia (CML) is a clonal hematopoietic stem cell disorder that progresses through distinct phases as the malignant clone progressively loses the capacity for terminal differentiation. It is characterized by the (9;22) translocation and resultant production of the Bcr-Abl tyrosine kinase. Bcr-Abl functions as a constitutively activated tyrosine kinase, and this kinase activity is absolutely required for the transforming function of the Bcr-Abl protein. In preclinical studies, STI571 (Gleevec, imatinib mesylate), a Bcr-Abl tyrosine kinase inhibitor, specifically inhibited the proliferation of Bcr-Abl-expressing cells in vitro and in vivo. STI571 has shown remarkable results in all phases of CML. Although responses are seen in all phases of the disease, durable responses are most common in earlier stage patients. Thus, STI571 has emerged as a paradigm for gene product targeted therapy, offering expanded treatment options for patients with CML.

publication date

  • September 10, 2003



  • Report


Digital Object Identifier (DOI)

  • 10.1081/CNV-120018235

PubMed ID

  • 12901289

Additional Document Info

start page

  • 429

end page

  • 38


  • 21


  • 3