In vitro chemoresponse in metachronous pairs of ovarian cancers.
Anticancer Res
; 34(12): 7191-6, 2014 Dec.
Article
in En
| MEDLINE
| ID: mdl-25503148
ABSTRACT
BACKGROUND/AIM:
An in vitro chemoresponse assay may aid effective therapy selection in epithelial ovarian cancer (EOC). This study explores changes in chemoresponse between paired primary and recurrent EOC tumors. PATIENTS ANDMETHODS:
RESULTS from metachronous tumors were examined in 242 patients. Changes in in vitro chemoresponse, measured by the area under the dose response curve (AUC) between paired tumors were assessed.RESULTS:
A significant increase in AUC was identified in most first-line therapies over time. No significant difference was observed in most recurrent therapies. When the elapsed time between occurrences was <17 months, no difference was observed for any recurrent therapies, and half of first-line therapies exhibited significant increases in AUC. When ≥17 months, all 7 therapies showed significant increases.CONCLUSION:
These results suggest an increase in chemoresistance over time, which is more pronounced for first-line therapies. This is consistent with clinical observations and suggests the biologic concordance between assay results and response to chemotherapy.Key words
Search on Google
Database:
MEDLINE
Main subject:
Ovarian Neoplasms
/
Neoplasms, Second Primary
/
Neoplasms, Glandular and Epithelial
/
Drug Resistance, Neoplasm
/
Neoplasm Recurrence, Local
/
Antineoplastic Agents
Limits:
Female
/
Humans
Language:
En
Year:
2014
Type:
Article