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Prognostic implications of tumor cell DNA and RNA content in multiple
myeloma
B Barlogie, R Alexanian, D Dixon, L Smith, L Smallwood and K Delasalle
Flow cytometric studies of bone marrow DNA and RNA content were conducted
in 71 previously untreated patients with multiple myeloma. There was a
progressive increase in response rate with rising plasma cell RNA content.
The DNA-derived ploidy level also affected chemotherapy sensitivity: only
one of 11 patients with either hypodiploidy or biclonal DNA stemlines
responded. DNA-RNA-defined marrow plasmacytosis was the only tumor
mass-related variable adversely affecting remission induction. Survival was
longer in patients with low tumor burden and favorable DNA features. The
availability of objective and quantitative pretreatment variables
associated with both initial response and survival should permit a
risk-based selection of patients for novel treatment approaches.
Volume 66,
Issue 2,
pp. 338-341,
08/01/1985
Copyright © 1985 by The American Society of Hematology

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