The aim of this study was to optimize the experimental conditions of the MTT assay for primary cultures of human brain tumors. This assay is based on the mitochondrial reduction of MTT-(3-(4,5-dimethylthiazol-2yl)-2,5-diphenyltetrazolium bromide) salt to formazan crystals by living cells. Formazan c
The MTT assay for chemosensitivity testing of human tumors of the central nervous system
✍ Scribed by G. Nikkhah; J. C. Tonn; O. Hoffmann; H. -P. Kraemer; J. L. Darling; W. Schachenmayr; R. Schönmayr
- Publisher
- Springer US
- Year
- 1992
- Tongue
- English
- Weight
- 797 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0167-594X
No coin nor oath required. For personal study only.
✦ Synopsis
In this study we assessed the influence of patient- and drug-specific parameters in the short-term MTT-chemosensitivity assay in 150 primary cell cultures derived from human brain tumors. In 45 patients the MTT assay was directly compared with the CFA (Colony Forming Assay). Resistance was 10-20% higher in the MTT assay than in the CFA, but there was a good agreement in both assays, that more malignant gliomas had a higher in vitro chemosensitivity against ACNU and BCNU. Overall the results demonstrate, that there is no uniform correlation between the in vitro chemosensitivity and the histopathological classification of the tumors, which corresponds well to the clinical situation. On the basis of this study we suggest prospective clinical trials with the MTT assay in human brain tumors.
📜 SIMILAR VOLUMES
Numerous procedures have been described which test the chemosensitivity of tumor cell lines. A major disadvantage of most of these assays is that practical limitations prevent the testing of more than a few variables. We have adapted a rapid and efficient colorimetric assay for testing the chemosens
The results of in vitro chemosensitivity testing using the MTT assay of tumor cells from 140 patients were analyzed with reference to the clinical antitumor effects of the chemotherapy. One hundred and twenty-four (88.6%) of 140 specimens were successfully tested by the method of Mosmann (J Immunol
The topic of the tumor board this week regards central nervous system (CNS) rhabdoid tumors (RHTs). We chose this topic, first of all, to try to elaborate a rational therapeutic plan for the patient who will be presented and, second, to highlight the unique biological phenomena that appear to link R