期刊
CANCER
卷 115, 期 23, 页码 5382-5393出版社
WILEY
DOI: 10.1002/cncr.24601
关键词
homoharringtonine; chronic myeloid leukemia; omacetaxine mepesuccinate; BCR-ABL1 mutations; T3151
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资金
- ChemGenex
Homoharringtonine (HHT) is a natural alkaloid that is obtained from various Cephalotaxus species. The mechanism of action by which HHT exerts its antitumor activity is through inhibition of protein synthesis and promotion of apoptosis. In the 1990s, HHT proved to be significantly active as salvage therapy for patients with chronic myeloid leukemia (CIVIL) after failure on interferon-alpha therapy. However, the remarkable success of imatinib mesylate in the treatment of CIVIL relegated HHT to oblivion. The development of omacetaxine mepesuccinate, a subcutaneously bioavailable semisynthetic form of HHT, and its activity in imatinib-resistant CML has established this agent for the second time as a valuable option in the management of this disease. Preliminary results appear to support the use of this agent for patients who have imatinib-resistant CIVIL, including those who carry the tyrosine kinase inhibitor-insensitive mutation that exchanges the amino acids threonine and isoleucine at position 315 (the T3151 mutation). In this article, the authors discuss the current data on omacetaxine and the prospects of this agent to be integrated into the state-of-the-art treatment algorithms for CIVIL Cancer 2009;115:5382-93. (C) 2009 American Cancer Society.
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