ISSN:
1432-0584
Keywords:
Low-dose Ara-C
;
Acute leukemia
;
Differentiation induction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary The differentiation inducing effect of low-dose Ara-C on human myeloid leukemic cells was studied in two patients with subacute myelocytic and subacute myelomonocytic leukemia in vivo and in vitro. By continuous i. v. administration of 10 mg Ara-C/m2 over 12 h daily for 12 or 20 days complete remissions were obtained in both patients with normalization of the incidence of the comitted progenitor cells BFU-E and CFU-C in the marrow while the incidence of pluripotent CFU-GEMM remained subnormal. Parallel cultures of the patients' bone marrow cells in diffusion chambers (DC) implanted in mice demonstrated a clear cytotoxic effect of low-dose Ara-C. The greater increase of granulopoietic cells within DC in the Ara-C exposed group than in control mice after the end of drug administration is, in addition, an indication for differentiation induction by this kind of Ara-C therapy.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00319815
