Chemotherapy alters the expression of growth-regulated genes in leukemia blast cells. To determine if such changes might be correlated with therapeutic outcome, we studied steady-state mRNA levels of MYC and histone H3 in the leukemic blasts of patients just prior to and 24 hr after the administration of the first doses of antileukemic drug therapy. Among nine patients with acute myelogenous leukemia, mRNA levels of MYC and histone H3 were reduced in five patients, and hematologic remission was achieved in three of these individuals. No remission was obtained in the four patients without reduction in MYC and histone H3 mRNA. Among acute lymphocytic leukemia patients, the mRNA levels of MYC and/or histone H3 were reduced by the therapy in seven of nine patients. A complete hematologic remission was obtained in five of them, and a partial remission was obtained in the other two. No remission was obtained in the patients in which MYC and H3 mRNA levels were unaffected by the therapy. These studies are of interest because they suggest that a decrease in the mRNA levels of MYC and histone H3 24 hr after a single dose of antineoplastic drugs may predict which patients will achieve complete remission; lack of reduction in these mRNAs correlates with failure to achieve remission. In addition, these studies also provide further proof of the heterogeneity of altered growth regulation among human leukemias.
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|Anno di pubblicazione:||1988|
|Titolo:||Prognostic significance of short term effects of chemotherapy on c myc and histone H3 mRNA levels in acute leukemia patients.|
|Autori:||D. VENTURELLI; B. LANGE; F. NARNI; L. SELLERI; M.T. MARIANO; U. TORELLI; A. GEWIRTZ; B. CALABRETTA.|
|Appare nelle tipologie:||Articolo su rivista|
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