期刊
CELL REPORTS
卷 5, 期 1, 页码 51-60出版社
CELL PRESS
DOI: 10.1016/j.celrep.2013.08.037
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类别
资金
- Burroughs Wellcome Fund (Clinical Scientist Award)
- National Cancer Institute [R01 CA82363-03, R01 CA098730-01]
Chronic myeloid leukemia (CML) and some acute lymphoblastic leukemias are characterized by the t(9;22) chromosome, which encodes the BCR/ABL oncogene. Multiple mouse models of CML express BCR/ABL at high levels from non-Bcr promoters, resulting in the development of leukemias. In contrast, a significant fraction of healthy humans have been found to have BCR/ABL-positive hematopoietic cells. To bridge the gap between the information derived from current mouse models and nonleukemic humans with the BCR/ABL oncogene, we generated a knockin model with BCR/ABL p210 expressed from the Bcr locus. Unlike previous models, expression of BCR/ABL from the knockin allele did not induce leukemia. BCR/ABL mutant cells did exhibit favorable bone marrow engraftment compared to control cells. These data suggest that BCR/ABL expression alone is insufficient to induce disease. This model allows for inducible spatial and temporal control of BCR/ABL expression for analysis of early steps in the pathogenesis of BCR/ABL-expressing leukemias.
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