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T Motoji, T Hoang, D Tritchler and EA McCulloch
Blast cells from patients with acute myeloblastic leukemia were exposed to
5-azacytidine (5-aza) and its analogues 5-aza 2'-deoxycytidine (5- aza-dr)
and 6-azacytidine (6-aza). Simple negative exponential survival curves were
obtained for the three drugs, but the sensitivity varied; 5- aza-dr was
most toxic, 6-aza was least toxic, and 5-aza was intermediate. Colonies
surviving drug exposure were replated; 5-aza and 5-aza-dr were found to
increase secondary plating efficiency, whereas 6- aza was inactive. The
findings provide indirect evidence for a role for DNA methylation in the
regulation of blast cell self-renewal.
This article has been cited by other articles:
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| Copyright © 1985 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||