Abstract:
:2'-Deoxycoformycin (dCF), a specific and potent inhibitor of adenosine deaminase, has demonstrated significant antitumor effect on lymphoid malignancies. The drug induced functional and morphologic differentiation of myeloid leukemia cells in combination with 2'-deoxyadenosine (dAd), but not dCF alone. NB4, a cell line derived from a patient with t(15; 17) acute promyelocytic leukemia (APL) underwent granulocytic differentiation when treated with all-trans retinoic acid (ATRA) or dCF plus dAd, but not with cytosine arabinoside. Pre-exposure of NB4 cells to ATRA greatly potentiated differentiation induced by dCF plus dAd, but pretreatment with dCF plus dAd before exposure to ATRA was less effective. Differentiation of NB4 cells was effectively induced by clinically applicable concentrations of dCF in combination with dAd. These findings may provide useful information about induction of differentiation in vivo.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Niitsu N,Umeda M,Honma Ydoi
10.1006/bbrc.1997.7250subject
Has Abstractpub_date
1997-09-08 00:00:00pages
100-6issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(97)97250-8journal_volume
238pub_type
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