期刊
PEDIATRIC HEMATOLOGY AND ONCOLOGY
卷 21, 期 6, 页码 465-473出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/08880010490477239
关键词
apoptosis; in vitro dug sensitivity assay; overall survival; pediatric ALL
The present study looked for any associations between in vitro drug sensitivity and clinical outcome in pediatric acute lymphoblastic leukemia (ALL) with the standard drugs used for leukemia therapy. A total of 72 samples were analyzed. In vitro sensitivity to drugs was tested by a methylthiazol-tetrazolium assay in 6 serial fold dilutions. Apoptosis was determined by TUNEL assay and apoptotic index was calculated for each sample. Patients sensitive to prednisone, asparginase, vincristine, and 6-mercapto purine had higher overall survival compared to patients whose tumor cells were resistant to these drugs (p<.01). For the other drugs tested, overall survival did not vary from that of the resistant Patients. For doxorubicin, asparginase, vincristine, prednisone combination sensitivity, there was a significant worsening of prognosis from the extremely sensitive Patients through an intermediate sensitive group to a most resistant group. The present study thus shows that in vitro drug-sensitivity testing provides significant prognostic information in childhood ALL.
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