Antibody-based therapy of acute myeloid leukemia with gemtuzumab ozogamicin.
Antibody-based therapy of acute myeloid leukemia with gemtuzumab ozogamicin.
复制标题
用gemtuzumab ozogamicin对急性髓性白血病的基于抗体的治疗。
DOI:
10.2741/4181
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发表时间:
2013-06-01
期刊:
影响因子:
--
通讯作者:
Walter RB
中科院分区:
文献类型:
--
作者:
Cowan AJ;Laszlo GS;Estey EH;Walter RB
Antibodies have created high expectations for effective yet tolerated therapeutics in acute myeloid leukemia (AML). Hitherto the most exploited target is CD33, a myeloid differentiation antigen found on AML blasts in most patients and, perhaps, leukemic stem cells in some. Treatment efforts have focused on conjugated antibodies, particularly gemtuzumab ozogamicin (GO), an anti-CD33 antibody carrying a toxic calicheamicin-γ1 derivative that, after intracellular hydrolytic release, induces DNA strand breaks, apoptosis, and cell death. Serving as paradigm for this strategy, GO was the first anti-cancer immunoconjugate to obtain regulatory approval in the U.S. While efficacious as monotherapy in acute promyelocytic leukemia (APL), GO alone induces remissions in less than 25–35% of non-APL AML patients. However, emerging data from well controlled trials now indicate that GO improves survival for many non-APL AML patients, supporting the conclusion that CD33 is a clinically relevant target for some disease subsets. It is thus unfortunate that GO has become unavailable in many parts of the world, and the drug’s usefulness should be reconsidered and selected patients granted access to this immunoconjugate.
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