Influence of Tumor Growth Kinetics on Response to Doxorubicin Treatment of C3H Mammary Carcinoma

Autor: Demicheli, Romano, Foroni, Roberto, Giuliani, Fernando C., Savi, Giuseppina
Zdroj: Tumori Journal; June 1988, Vol. 74 Issue: 3 p269-274, 6p
Abstrakt: The influence of tumor growth kinetics on response to doxorubicin treatment of C3H mammary carcinoma was investigated. Gompertzian growth curves were obtained for the tumor mass of each mouse by a computerized best fit program. The response was assessed by evaluating: a) the total clonogenic cell reduction as a fraction of the initial tumor volume or the tumor volume that should result at the end of treatment in a free growth condition, and b) the partial clonogenic cell reduction at each drug administration, assuming a first order cell kill hypothesis. Slowly growing tumors at each dose level showed a significantly poorer response than rapidly growing tumors. Each response index exhibited a linear correlation with the specific instantaneous growth rate at the time of treatment. Data also suggested a dose-response dependence.
Databáze: Supplemental Index