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In Vitro Cellular Drug Resistance and Prognosis in Newly Diagnosed Childhood Acute Lymphoblastic Leukemia
- Source :
- Kaspers, G J L, Veerman, A J P, Pieters, R, Van Zantwijk, C H, Smets, L A, Van Wering, E R & Van Der Does-Van Den Berg, A 1997, ' In vitro cellular drug resistance and prognosis in newly diagnosed childhood acute lymphoblastic leukemia ', Blood, vol. 90, no. 7, pp. 2723-2729 . https://doi.org/10.1182/blood.v90.7.2723.2723_2723_2729, Blood, 90(7), 2723-2729. American Society of Hematology
- Publication Year :
- 1997
- Publisher :
- American Society of Hematology, 1997.
-
Abstract
- As an important determinant of the response to chemotherapy, measurements of cellular drug resistance may provide prognostically significant information, which could be useful for optimal risk-group stratification. The objective of this report is to determine the relation between in vitro resistance to 12 drugs, measured with the colorimetric methyl-thiazol-tetrazolium (MTT) assay, and long-term clinical response to chemotherapy in 152 children with newly diagnosed acute lymphoblastic leukemia. At risk-group stratified analyses, in vitro resistance to prednisolone, L-asparaginase, and vincristine were each significantly (P < .01) related to the probability of disease-free survival (pDFS) after combination chemotherapy. The combination of data for prednisolone, L-asparaginase, and vincristine provided a drug-resistance profile with prognostic independent significance superior to that of any single drug or any other factor. The 3-years pDFS was 100% for the group with the most sensitive profile, 20% of all patients, 84% (SE 6%) for the group with an intermediately sensitive profile, 40% of all patients, and 43% (SE 8%) for the remaining group with the most resistant profile (P < .001). In conclusion, the extent of in vitro cellular resistance to prednisolone, L-asparaginase, and vincristine, measured using the MTT assay, was significantly related to the clinical response to combination chemotherapy. Treatment failure in newly diagnosed childhood ALL can be predicted based on cellular drug resistance data.
- Subjects :
- Oncology
Vincristine
medicine.medical_specialty
Chemotherapy
business.industry
medicine.medical_treatment
Immunology
Combination chemotherapy
Cell Biology
Hematology
Drug resistance
medicine.disease
Biochemistry
Chemotherapy regimen
Internal medicine
Acute lymphocytic leukemia
medicine
Prednisolone
business
Childhood Acute Lymphoblastic Leukemia
medicine.drug
Subjects
Details
- ISSN :
- 15280020 and 00064971
- Volume :
- 90
- Database :
- OpenAIRE
- Journal :
- Blood
- Accession number :
- edsair.doi.dedup.....4194b0027330ac97da086277f3dea7d1