An automated fluorometric microculture cytotoxicity assay (FMCA) based on the measurement of fluorescence generated from cellular hydrolysis of fluorescein diacetate (FDA) to fluorescein was employed for chemotherapeutic-drug-sensitivity testing of tumor-cell suspensions from patients with leukemia.
In vitro determination of cytotoxic drug response in ovarian carcinoma using the fluorometric microculture cytotoxicity assay (FMCA)
✍ Scribed by Katalin Csóka; Bengt Tholander; Eva Gerdin; Manuel de la Torre; Rolf Larsson; Peter Nygren
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- French
- Weight
- 62 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0020-7136
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✦ Synopsis
The fluorometric microculture cytotoxicity assay (FMCA), a short-term in vitro assay based on the concept of total tumor cell kill, was used for testing the cytotoxic drug sensitivity of tumor cells from patients with ovarian carcinoma. A total of 125 fresh specimens was obtained, 98 (78%) of which were analyzed successfully. Data from 45 patients were available for clinical correlations. The FMCA appeared to yield clinically relevant cytotoxic drug sensitivity data for ovarian carcinoma as indicated by a comparison with tumor samples obtained from patients with non-Hodgkin's lymphoma or kidney carcinoma. Considering the most active single agent in vitro actually given in vivo, and using the median drug activity among all ovarian carcinoma samples as a cut-off, the sensitivity of the assay and its specificity were 75 and 52%, respectively. Cross-resistance in vitro was frequently observed between standard drugs but not between standard drugs and Taxol. Ten percent of the specimens showed an extreme resistance for at least 4 of 6 of the drugs investigated. Int.
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